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ESO Astrophysics Symposia

Globular Clusters - Guides to Galaxies

Proceedings of the Joint ESO-FONDAP Workshop on Globular Clusters held in Concepción, Chile, 6-10
March 2006

Bearbeitet von
Tom Richtler, Søren Larsen

1. Auflage 2008. Buch. xx, 456 S. Hardcover
ISBN 978 3 540 76960 6
Format (B x L): 15,5 x 23,5 cm
Gewicht: 871 g

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Contents

Open Questions in the Globular Cluster – Galaxy Connection

Markus Kissler-Patig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

Part I Detailed Studies of Individual Globular Clusters Detailed Chemical Abundances of Extragalactic Globular Clusters

Rebecca Bernstein, Andrew McWilliam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Spectroscopic Abundances and Radial Velocities of the Galactic Globular Clusters 2MASS GC01 and 2MASS GC02: Preliminary Results

J. Borissova, V.D. Ivanov, A. Stephens, D. Minniti . . . . . . . . . . . . . . . . 17

Abundance Anomalies in Galactic Globular Clusters – Looking for the Stellar Culprits

C. Charbonnel, N. Prantzos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Globular Clusters in the Direction of the Inner Galaxy

J. Alonso-Garc´ıa, M. Mateo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Globular Cluster Research with Astronomical Archives

Carol A. Christian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Super-He-Rich Populations in Globular Clusters

Chul Chung, Young-Wook Lee, Suk-Jin Yoon, Seok-Joo Joo,

and Sang-Il Han . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Testing the BH 176 and Berkeley 29 Association with GASS/Monoceros

Peter M. Frinchaboy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

New Yonsei-Yale (Y 2) Isochrones and Horizontal-Branch Evolutionary Tracks with Helium Enhancements

S.-I. Han, Y.-C. Kim, Y.-W. Lee, S.K. Yi, D.-G. Kim, and P. Demarque 33

  • VIII
  • Contents

Search for Candle Stars in Globular Clusters: Spectroscopic Analysis of Post-AGB Candidates

G. Jasniewicz, M. Parthasarathy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

The Lack of Binaries Among Hot Horizontal Branch Stars: M80 and NGC5986

C. Moni Bidin, S. Moehler, G. Piotto, Y. Momany, A. Recio-Blanco,

R.A. M´endez . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Semi-Empirical Determination of the Mass Distribution of Horizontal Branch Stars in M3

A. Valcarce, M. Catelan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Part II The Most Massive Clusters Globular Clusters, Galactic Nuclei and Supermassive Black Holes

Patrick Coˆt´e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

UCDs – A Mixed Bag of Objects

Michael Hilker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Ultra-Compact Dwarf Galaxies and Globular Clusters: A Review of Their Spatial and Dynamical Properties

M.J. Drinkwater, E. Evstigneeva, P. Firth, C. Power . . . . . . . . . . . . . . . . 59

The Maximum Mass of Star Clusters

M. Gieles, S.S Larsen, M.R. Haas, R.A. Scheepmaker, N. Bastian . . . . 63

The Stellar Population of Ultra-Compact Dwarf Galaxies

Michael D. Gregg, Michael J. Drinkwater, Katya Evstigneeva,

Arna Karick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

News on Ultra-Compact Dwarfs and Blue Globular Clusters

Steffen Mieske . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

UCDs and GCs: Structural Differences from HST Imaging

E.A. Evstigneeva, M.J. Drinkwater, M. Hilker,, C.Y. Peng . . . . . . . . . . . 79

Ultra-Compact Stellar Systems in the Fornax Galaxy Cluster

P. Firth, M.J. Drinkwater, E.A. Evstigneeva, A. Karick, M.D. Gregg,

M. Hilker, K. Bekki, J.B. Jones, S. Phillips . . . . . . . . . . . . . . . . . . . . . . . . 81

Multi-Colour Imaging of Ultra-Compact Objects in the Fornax Cluster

A.M. Karick, M.D. Gregg, M.J. Drinkwater, M. Hilker, P. Firth . . . . . . 83

  • Contents
  • IX

Part III Young Star Clusters Hierarchical Formation of Galactic Clusters

Bruce G. Elmegreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Young Massive Clusters – Formation Efficiencies and (Initial) Mass Functions

Søren S. Larsen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

The Radii of Thousands of Star Clusters in M51 with

HST/ACS

R.A. Scheepmaker, M. Gieles, M.R. Haas, N. Bastian, S.S. Larsen. . . . 103

Extragalactic Star Clusters in Merging Galaxies

Gelys Trancho . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

The Environment of Young Massive Clusters

Leonardo Vanzi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Star/Cluster Formation in Complexes: Insights from IFUs and HST

Nate Bastian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Spectral Evolution of Blue Concentrated Star Clusters in the Large Magellanic Cloud

J.J. Claria´, J.F.C. Santos Jr., A.V. Ahumada, E. Bica, A.E. Piatti,

M.C. Parisi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Young Star Clusters in the SMC

Katharina Glatt, Eva K. Grebel, Andreas Koch . . . . . . . . . . . . . . . . . . . . . 119

Molecular Clouds and Star Formation in the Magellanic System by NANTEN

A. Kawamura, T. Minamidani, Y. Mizuno, N. Mizuno, T. Onishi, A.

Mizuno, Y. Fukui, NANTEN team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Two Star Cluster Populations in NGC 45

M.D. Mora, S.S. Larsen, M. Kissler-Patig . . . . . . . . . . . . . . . . . . . . . . . . . 123

Characterization of Open Cluster Remnants

D.B. Pavani, E. Bica . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

HST Photometry of the Binary Globular Cluster Sersic 13N-S in NGC5128[1]

D. Villegas, D. Minniti, J.G. Funes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

  • X
  • Contents

Part IV Globular Cluster Systems in Dwarf and Irregular Galaxies LMC Cluster Abundances and Kinematics

Doug Geisler, Aaron Grocholski, Ata Sarajedini, Andrew Cole, Verne

Smith . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Globular Clusters in Dwarf Galaxies

Bryan W. Miller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Globular Clusters in Dwarf and Giant Galaxies

Sidney van den Bergh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

The Age-Metallicity Relation of the SMC

Andrea Kayser, Eva K. Grebel, Daniel R. Harbeck, Andrew A. Cole, Andreas Koch, John S. Gallagher, Gary S. Da Costa . . . . . . . . . . . . . . . . 157

Integrated Spectroscopic Analysis of Galactic and Small Magellanic Cloud Clusters

A.V. Ahumada, J.J. Claria´, E. Bica . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Variable Stars in the Globular Clusters and in the Field of the Fornax dSph Galaxy

C. Greco1, G. Clementini1, E.V. Held2, E. Poretti3, M. Catelan4, L. Dell’Arciprete3, M. Gullieuszik2, M. Maio1, L. Rizzi5, H.A. Smith6,

B.J. Pritzl7, A. Rest8, N. De Lee6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Physical Parameters of Intermediate-Age LMC Clusters from Modelling of HST CMDs

L.O. Kerber, B. Barbuy, E. Brocato . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

RGB Properties of the LMC/SMC Clusters in the Infrared

Radostin Kurtev, Valentin Ivanov, Jura Borissova, M´arcio Catelan,

and Douglas Geisler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

WLM-1: A Non-Rotating, Gravitationally Unperturbed, Highly Elliptical Extragalactic Globular Cluster

Andrew W. Stephens, M´arcio Catelan, Roxana P. Contreras . . . . . . . . . . 169

Part V Globular Cluster Systems in Spiral Galaxies Star Clusters in M33 – Clues to Galaxy Formation and Evolution

Rupali Chandar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

M31 and its Globular Clusters

Kathy Perrett . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

  • Contents
  • XI

IR Integrated Light Colors For Galactic GCs and An Update on Young M31 Globular Clusters

Judith Cohen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Nuclear Star Clusters in Edge-on Galaxies

Anil C. Seth, Julianne J. Dalcanton, Paul W. Hodge, Victor

P. Debattista . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

HST ACS Wide-Field Photometry of the Sombrero Galaxy Globular Cluster System

Lee Spitler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Intermediate-Age Globular Clusters in M31

Jay Strader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Metal-Poor Globular Clusters of the Galactic Bulge

B. Barbuy, M. Zoccali, S. Ortolani, Y. Momany, D. Minniti, V. Hill, A. Renzini, E. Bica, A. Alves-Brito, A. Gom´ez, L. Pasquini, R.M. Rich 207

Globular Cluster System and Milky Way Properties Revisited

C. Bonatto, E. Bica, B. Barbuy, S. Ortolani. . . . . . . . . . . . . . . . . . . . . . . . 209

RR Lyrae-Based Calibration of the Globular Cluster Luminosity Function

M. Di Criscienzo, F. Caputo, M. Marconi, and I. Musella. . . . . . . . . . . . 213

Globular Cluster Systems in Spiral Galaxies Using ACS Imaging

Kieran Forde . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Laser Guide Star Imaging of M31 Globulars

Michael D. Gregg, Arna Karick, Bruce Macintosh . . . . . . . . . . . . . . . . . . . 217

GALEX UV Observations of M31 Globular Clusters

Soo-Chang Rey, Sangmo T. Sohn, R. Michael Rich, Suk-Jin Yoon, Chul Chung, Sukyoung K. Yi, and Young-Wook Lee . . . . . . . . . . . . . . . . . 221

Integrated Spectroscopy of Galactic Globular Clusters

Ray M. Sharples, Jaeil Cho . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Part VI Globular Cluster Systems in Early-Type Galaxies Globular Cluster Systems: Do They Really Trace Star Formation? (Or Rather: What Mode of Star Formation Do They Trace?)

Michael A. Beasley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

  • XII
  • Contents

Globular Clusters in Early Type Galaxies

Jean P. Brodie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Globular Clusters and Galaxy Formation

Duncan A. Forbes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Globular Cluster Systems in Giant Ellipticals: New and Old Patterns

William E. Harris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

The ACS Virgo Cluster Survey

Andr´es Jord´an . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Globular Clusters at the Centre of the Fornax Cluster: Tracing Interactions Between Galaxies

Lilia P. Bassino, Tom Richtler, Favio R. Faifer, Juan C. Forte,

Boris Dirsch, Doug Geisler, Ylva Schuberth . . . . . . . . . . . . . . . . . . . . . . . . 271

Globular Cluster Bimodality Revisited (and the Globulars- Galaxy Halo Connection)

Juan C. Forte, Favio Faifer, Doug Geisler . . . . . . . . . . . . . . . . . . . . . . . . . 275

Globular Cluster Systems, Diffuse Star Clusters, and Host Galaxies in the ACS Virgo Cluster Survey

Eric W. Peng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Hot Populations in M87 Globular Clusters

S.T. Sohn, R.W. O’Connell, A. Kundu, W.B. Landsman, D. Burstein,

R.C. Bohlin, J.A. Frogel, J.A. Rose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

A Subaru/Suprime-Cam Wide-Field Survey of Globular Cluster Populations around M87

Naoyuki Tamura, Ray M. Sharples, Nobuo Arimoto, Masato Onodera,

Kouji Ohta, Yoshihiko Yamada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Stellar Populations of Globular Clusters in NGC 1407

A.J. Cenarro, J.P. Brodie, M.A. Beasley, J. Strader. . . . . . . . . . . . . . . . . 293

The Globular Cluster System of NGC 5846 Revisited: Colours, Sizes and X-Ray Counterparts

Ana L. Chies-Santos, Basilio X. Santiago, Miriani G. Pastoriza,

Duncan A. Forbes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Globular Cluster Systems in Shell Ellipticals

Jaeil Cho, Ray M. Sharples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

  • Contents
  • XIII

GMOS Photometry of Five Globular Cluster Systems: NGC 4649, NGC 3923, NGC 524, NGC 3115 and NGC 3379

F.R. Faifer, J.C. Forte, M. Beasley, T. Bridges, D. Forbes, K. Gebhardt, D. Hanes, M. Norris, M. Pierce, R. Proctor, R. Sharples,

and S. Zepf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Structural Parameters from Ground-based Observations of Globular Clusters in NGC 5128

M. Go´mez, D. Geisler, W.E. Harris, T. Richtler, G.L.H. Harris, K.A.

Woodley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Globular Cluster Populations in Early-Type Galaxies

M. Hempel, M. Kissler-Patig, T.H. Puzia, M. Hilker, S. Zepf, A. Kundu303

The Low-Mass X-Ray Binary Globular Cluster Connection in the ACS Virgo Cluster Survey

A. Jorda´n, G.R. Sivakoff, C.L. Sarazin, J.P. Blakeslee, E.L. Blanton, P. Coˆt´e, L. Ferrarese, J.A. Irwin, A.M. Juett, S. Mei, E.W. Peng,

M.J. West . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

The Globular Cluster System of NGC 5128: Combining Broad-Band Color and Lick Index Analysis

Thomas Lilly, Uta Fritze-v. Alvensleben, Richard de Grijs . . . . . . . . . . . . 307

The Galaxy – Globular Cluster Connection in NGC 3115

Mark A. Norris, Ray M. Sharples, Harald Kuntschner . . . . . . . . . . . . . . . 309

Velocity Dispersions of Bright Globular Clusters in NGC 5128

Marina Rejkuba, Dante Minniti, Georges Meylan . . . . . . . . . . . . . . . . . . . . 311

Part VII Evolution of Cluster Systems and their Host Galaxies Imprint of Galaxy Formation and Evolution on Globular Cluster Properties

Kenji Bekki . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Formation of Globular Clusters in Hierarchical Cosmology: ART and Science

Oleg Y. Gnedin, Jos´e L. Prieto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Globular Cluster Formation in Mergers

Franc¸ois Schweizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

The Formation Histories of Metal-Rich and Metal-Poor Globular Clusters

Stephen E. Zepf. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

  • XIV
  • Contents

Globular Cluster System Evolution in Early Type Galaxies

R. Capuzzo-Dolcetta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

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    Globular Clusters and Galactic Nuclei

    Scuola di Dottorato “Vito Volterra” Dottorato di Ricerca in Astronomia– XXIV ciclo Globular Clusters and Galactic Nuclei Thesis submitted to obtain the degree of Doctor of Philosophy (“Dottore di Ricerca”) in Astronomy by Alessandra Mastrobuono Battisti Program Coordinator Thesis Advisor Prof. Roberto Capuzzo Dolcetta Prof. Roberto Capuzzo Dolcetta Anno Accademico 2010-2011 ii Abstract Dynamical evolution plays a key role in shaping the current properties of star clus- ters and star cluster systems. We present the study of stellar dynamics both from a theoretical and numerical point of view. In particular we investigate this topic on different astrophysical scales, from the study of the orbital evolution and the mutual interaction of GCs in the Galactic central region to the evolution of GCs in the larger scale galactic potential. Globular Clusters (GCs), very old and massive star clusters, are ideal objects to explore many aspects of stellar dynamics and to investigate the dynamical and evolutionary mechanisms of their host galaxy. Almost every surveyed galaxy of sufficiently large mass has an associated group of GCs, i.e. a Globular Cluster System (GCS). The first part of this Thesis is devoted to the study of the evolution of GCSs in elliptical galaxies. Basing on the hypothesis that the GCS and stellar halo in a galaxy were born at the same time and, so, with the same density distribution, a logical consequence is that the presently observed difference may be due to evolution of the GCS. Actually, in this scenario, GCSs evolve due to various mechanisms, among which dynamical friction and tidal interaction with the galactic field are the most important.
  • Synapses of Active Galactic Nuclei: Comparing X-Ray and Optical Classifications Using Artificial Neural Networks?

    Synapses of Active Galactic Nuclei: Comparing X-Ray and Optical Classifications Using Artificial Neural Networks?

    A&A 567, A92 (2014) Astronomy DOI: 10.1051/0004-6361/201322592 & c ESO 2014 Astrophysics Synapses of active galactic nuclei: Comparing X-ray and optical classifications using artificial neural networks? O. González-Martín1;2;??, D. Díaz-González3, J. A. Acosta-Pulido1;2, J. Masegosa4, I. E. Papadakis5;6, J. M. Rodríguez-Espinosa1;2, I. Márquez4, and L. Hernández-García4 1 Instituto de Astrofísica de Canarias (IAC), C/Vía Láctea s/n, 38205 La Laguna, Spain e-mail: [email protected] 2 Departamento de Astrofísica, Universidad de La Laguna (ULL), 38205 La Laguna, Spain 3 Shidix Technologies, 38320, La Laguna, Spain 4 Instituto de Astrofísica de Andalucía, CSIC, C/ Glorieta de la Astronomía s/n, 18005 Granada, Spain 5 Physics Department, University of Crete, PO Box 2208, 710 03 Heraklion, Crete, Greece 6 IESL, Foundation for Research and Technology, 711 10 Heraklion, Crete, Greece Received 2 September 2013 / Accepted 3 April 2014 ABSTRACT Context. Many classes of active galactic nuclei (AGN) have been defined entirely through optical wavelengths, while the X-ray spectra have been very useful to investigate their inner regions. However, optical and X-ray results show many discrepancies that have not been fully understood yet. Aims. The main purpose of the present paper is to study the synapses (i.e., connections) between X-ray and optical AGN classifications. Methods. For the first time, the newly implemented efluxer task allowed us to analyse broad band X-ray spectra of a sample of emission-line nuclei without any prior spectral fitting. Our sample comprises 162 spectra observed with XMM-Newton/pn of 90 lo- cal emission line nuclei in the Palomar sample.
  • The Messier Catalog

    The Messier Catalog

    The Messier Catalog Messier 1 Messier 2 Messier 3 Messier 4 Messier 5 Crab Nebula globular cluster globular cluster globular cluster globular cluster Messier 6 Messier 7 Messier 8 Messier 9 Messier 10 open cluster open cluster Lagoon Nebula globular cluster globular cluster Butterfly Cluster Ptolemy's Cluster Messier 11 Messier 12 Messier 13 Messier 14 Messier 15 Wild Duck Cluster globular cluster Hercules glob luster globular cluster globular cluster Messier 16 Messier 17 Messier 18 Messier 19 Messier 20 Eagle Nebula The Omega, Swan, open cluster globular cluster Trifid Nebula or Horseshoe Nebula Messier 21 Messier 22 Messier 23 Messier 24 Messier 25 open cluster globular cluster open cluster Milky Way Patch open cluster Messier 26 Messier 27 Messier 28 Messier 29 Messier 30 open cluster Dumbbell Nebula globular cluster open cluster globular cluster Messier 31 Messier 32 Messier 33 Messier 34 Messier 35 Andromeda dwarf Andromeda Galaxy Triangulum Galaxy open cluster open cluster elliptical galaxy Messier 36 Messier 37 Messier 38 Messier 39 Messier 40 open cluster open cluster open cluster open cluster double star Winecke 4 Messier 41 Messier 42/43 Messier 44 Messier 45 Messier 46 open cluster Orion Nebula Praesepe Pleiades open cluster Beehive Cluster Suburu Messier 47 Messier 48 Messier 49 Messier 50 Messier 51 open cluster open cluster elliptical galaxy open cluster Whirlpool Galaxy Messier 52 Messier 53 Messier 54 Messier 55 Messier 56 open cluster globular cluster globular cluster globular cluster globular cluster Messier 57 Messier
  • Aaron J. Romanowsky Curriculum Vitae (Rev. 1 Septembert 2021) Contact Information: Department of Physics & Astronomy San

    Aaron J. Romanowsky Curriculum Vitae (Rev. 1 Septembert 2021) Contact Information: Department of Physics & Astronomy San

    Aaron J. Romanowsky Curriculum Vitae (Rev. 1 Septembert 2021) Contact information: Department of Physics & Astronomy +1-408-924-5225 (office) San Jose´ State University +1-409-924-2917 (FAX) One Washington Square [email protected] San Jose, CA 95192 U.S.A. http://www.sjsu.edu/people/aaron.romanowsky/ University of California Observatories +1-831-459-3840 (office) 1156 High Street +1-831-426-3115 (FAX) Santa Cruz, CA 95064 [email protected] U.S.A. http://www.ucolick.org/%7Eromanow/ Main research interests: galaxy formation and dynamics – dark matter – star clusters Education: Ph.D. Astronomy, Harvard University Nov. 1999 supervisor: Christopher Kochanek, “The Structure and Dynamics of Galaxies” M.A. Astronomy, Harvard University June 1996 B.S. Physics with High Honors, June 1994 College of Creative Studies, University of California, Santa Barbara Employment: Professor, Department of Physics & Astronomy, Aug. 2020 – present San Jose´ State University Associate Professor, Department of Physics & Astronomy, Aug. 2016 – Aug. 2020 San Jose´ State University Assistant Professor, Department of Physics & Astronomy, Aug. 2012 – Aug. 2016 San Jose´ State University Research Associate, University of California Observatories, Santa Cruz Oct. 2012 – present Associate Specialist, University of California Observatories, Santa Cruz July 2007 – Sep. 2012 Researcher in Astronomy, Department of Physics, Oct. 2004 – June 2007 University of Concepcion´ Visiting Adjunct Professor, Faculty of Astronomical and May 2005 Geophysical Sciences, National University of La Plata Postdoctoral Research Fellow, School of Physics and Astronomy, June 2002 – Oct. 2004 University of Nottingham Postdoctoral Fellow, Kapteyn Astronomical Institute, Oct. 1999 – May 2002 Rijksuniversiteit Groningen Research Fellow, Harvard-Smithsonian Center for Astrophysics June 1994 – Oct.
  • The Unusual X-Ray Morphology of NGC 4636

    The Unusual X-Ray Morphology of NGC 4636

    TheThe unusualunusual X-rayX-ray morphologymorphology ofof NGCNGC 4636:4636: cavities,cavities, off-centeroff-center outburstsoutbursts andand shocksshocks revealedrevealed byby deepdeep ChandraChandra observationsobservations AAlleessssaannddrroo BBaallddii Smithsonian Astrophysical Observatory In collaboration with: W. Forman (SAO), C. Jones (SAO), P. Nulsen (SAO), R. Kraft (SAO), L. David (SAO), E. Churazov (MPA-Garching) NGCNGC 46364636 •One of the most X-ray luminous ‘normal’ elliptical galaxies: LX ~ 2 x 1041 ergs s-1 •Located in the outskirts of the Virgo Cluster, at a distance of 15 Mpc Optical Soft X-rays (Tonry et al. 2001) •Already studied in the X-ray wavelengths by Chandra & XMM- Newton (e.g. Jones et al. 2002, O’ Sullivan et al. 2005) Radio contours X-ray Optical Radio Eight Years of Science with Chandra - Huntsville, AL Oct 23-25 2007 ChandraChandra datadata preparationpreparation • ACIS-I (2 observations: 150 ks) and ACIS-S (1 observation: 52 ks) data reprocessed with CIAO 3.4 applying: • Newest ACIS gain maps • Time-dependent ACIS gain correction • ACIS CTI correction, etc. • Removal of high background flaring period: • ACIS-I: Tclean = 149 ks • ACIS-S: Tclean = 37 ks Eight Years of Science with Chandra - Huntsville, AL Oct 23-25 2007 NGCNGC 46364636:: globalglobal X-rayX-ray propertiesproperties •The temperature profile shows Temperature evidence of a cooling core; several substructures are detected as well. •The density and pressure profiles show a strong central peak and a ‘plateau’ located at 2 kpc < r < 4.5 kpc from
  • The Messier Marathon Search Sequence

    The Messier Marathon Search Sequence

    2/28/2020 Messier Marathon Search Sequence List This file presents the Messier objects in the order of the Marathon Search Sequence given by Don Machholz in his Messier Marathon Observer's Guide. The Messier Marathon Search Sequence compiled online by Hartmut Frommert, using work of Don Machholz. Depending on geographic location, it may be impossible to find them all, and may be better to slightly modify this list. In case of doubt consult Don Machholz's book. This list should be good for northern latitudes 20 to 40. 1. M77 spiral galaxy in Cetus 2. M74 spiral galaxy in Pisces 3. M33 The Triangulum Galaxy (also Pinwheel) spiral galaxy in Triangulum 4. M31 The Andromeda Galaxy spiral galaxy in Andromeda 5. M32 Satellite galaxy of M31 elliptical galaxy in Andromeda 6. M110 Satellite galaxy of M31 elliptical galaxy in Andromeda 7. M52 open cluster in Cassiopeia 8. M103 open cluster in Cassiopeia 9. M76 The Little Dumbell, Cork, or Butterfly planetary nebula in Perseus 10. M34 open cluster in Perseus 11. M45 Subaru, the Pleiades--the Seven Sisters open cluster in Taurus 12. M79 globular cluster in Lepus 13. M42 The Great Orion Nebula diffuse nebula in Orion 14. M43 part of the Orion Nebula (de Mairan's Nebula) diffuse nebula in Orion 15. M78 diffuse reflection nebula in Orion 16. M1 The Crab Nebula supernova remnant in Taurus 17. M35 open cluster in Gemini 18. M37 open cluster in Auriga 19. M36 open cluster in Auriga 20. M38 open cluster in Auriga 21. M41 open cluster in Canis Major 22.
  • Appendix C a List of the Messier Objects

    Appendix C a List of the Messier Objects

    Appendix C A List of the Messier Objects DS=DoubleStar OC=OpenCluster GC=GlobularCluster EG = Elliptical Galaxy SG = Spiral Galaxy IG = Irregular Galaxy PN = Planetary Nebula DN = Diffuse Nebula SR = Supernova Remnant Object Common Name Type of Object Location mv Dist. (kly) M1 Crab Nebula SR Taurus 9.0 6.3 M2 GC Aquarius 7.5 36 M3 GC Canes Venatici 7.0 31 M4 GC Scorpius 7.5 7 M5 GC Serpens 7.0 23 M6 Butterfly Cluster OC Scorpius 4.5 2 M7 Ptolemy’s Cluster OC Scorpius 3.5 1 M8 Lagoon Nebula DN Sagittarius 5.0 6.5 M9 GC Ophiuchus 9.0 26 M10 GC Ophiuchus 7.5 13 M11 Wild Duck Cluster OC Scutum 7.0 6 M12 GC Ophiuchus 8.0 18 M13 Great Hercules Cluster GC Hercules 5.8 22 M14 GC Ophiuchus 9.5 27 M15 GC Pegasus 7.5 33 M16 Part of Eagle Nebula OC Serpens 6.5 7 M17 Horseshoe Nebula DN Sagittarius 7.0 5 M18 OC Sagittarius 8.0 6 M19 GC Ophiuchus 8.5 27 M20 Trifid Nebula DN Sagittarius 5.0 2.2 M21 OC Sagittarius 7.0 3 M22 GC Sagittarius 6.5 10 M23 OC Sagittarius 6.0 4.5 135 Object Common Name Type of Object Location mv Dist. (kly) M24 Milky Way Patch Star cloud Sagittarius 11.5 10 M25 OC Sagittarius 4.9 2 M26 OC Scutum 9.5 5 M27 Dumbbell Nebula PN Vulpecula 7.5 1.25 M28 GC Sagittarius 8.5 18 M29 OC Cygnus 9.0 7.2 M30 GC Capricornus 8.5 25 M31 Andromeda Galaxy SG Andromeda 3.5 2500 M32 Satellite galaxy of M31 EG Andromeda 10.0 2900 M33 Triangulum Galaxy SG Triangulum 7.0 2590 M34 OC Perseus 6.0 1.4 M35 OC Gemini 5.5 2.8 M36 OC Auriga 6.5 4.1 M37 OC Auriga 6.0 4.6 M38 OC Auriga 7.0 4.2 M39 OC Cygnus 5.5 0.3 M40 Winnecke 4 DS Ursa Major 9.0 M41 OC Canis
  • MIPS 24160 M Photometry for the Herschelspire Local Galaxies

    MIPS 24160 M Photometry for the Herschelspire Local Galaxies

    Mon. Not. R. Astron. Soc. 423, 197–212 (2012) doi:10.1111/j.1365-2966.2012.20784.x MIPS 24–160 µm photometry for the Herschel-SPIRE Local Galaxies Guaranteed Time Programs G. J. Bendo,1,2 F. Galliano3 andS.C.Madden3 1UK ALMA Regional Centre Node, Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL 2Astrophysics Group, Imperial College, Blackett Laboratory, Prince Consort Road, London SW7 2AZ 3Laboratoire AIM, CEA, Universite´ Paris Diderot, IRFU/Service d’Astrophysique, Bat. 709, 91191 Gif-sur-Yvette, France Accepted 2012 February 20. Received 2012 January 23; in original form 2011 November 14 ABSTRACT We provide an overview of ancillary 24-, 70- and 160-µm data from the Multiband Imaging Photometer for Spitzer (MIPS) that are intended to complement the 70–500 µm Herschel Space Observatory photometry data for nearby galaxies obtained by the Herschel-SPIRE Local Galaxies Guaranteed Time Programs and the Herschel Virgo Cluster Survey. The MIPS data can be used to extend the photometry to wavebands that are not observed in these Herschel surveys and to check the photometry in cases where Herschel performs observations at the same wavelengths. Additionally, we measured globally integrated 24–160 µm flux densities for the galaxies in the sample that can be used for the construction of spectral energy distributions. Using MIPS photometry published by other references, we have confirmed that we are obtaining accurate photometry for these galaxies. Key words: catalogues – galaxies: photometry – infrared: galaxies. (SEDs) of the dust emission and to map the distribution of cold 1 INTRODUCTION dust within these galaxies.
  • Messier Object Mapping System

    Messier Object Mapping System

    Messier Object Mapping System Messier Object Constellation Map# Messier Object Constellation Map# M1 Taurus 1-6 M56 Lyra 3 M2 Aquarius 8 M57 Lyra 3 M3 Canes Venatici 4-10 M58 Virgo IN2-5 M4 Scorpius 2 M59 Virgo IN2 M5 Scorpius 10 M60 Virgo IN2-5-9-10 M6 Scorpius 2 M61 Virgo IN2-5-8 M7 Scorpius 2 M62 Ophiuchus 2 M8 Sagittarius 2-IN1 M63 Canes Venatici 4 M9 Ophiuchus 2 M64 Coma Berenices 4-5 M10 Ophiuchus 2 M65 Leo 5 M11 Scutum 2 M66 Leo 5 M12 Ophiuchus 2 M67 Cancer 6 M13 Hercules 3 M68 Hydra 9 M14 Ophiuchus 2 M69 Sagittarius 2-IN1-8 M15 Pegasus 8 M70 Sagittarius 2-IN1-8 M16 Serpens 2-IN1 M71 Sagittarius 2 M17 Sagittarius 2-IN1 M72 Aquarius 8 M18 Sagittarius 2-IN1 M73 Aquarius 8 M19 Ophiuchus 2 M74 Pisces 11 M20 Sagittarius 2-IN1-8 M75 Sagittarius 8 M21 Sagittarius 2-IN1-8 M76 Perseus 7 M22 Sagittarius 2-IN1-8 M77 Cetus 11 M23 Sagittarius 2-IN1 M78 Orion 1 M24 Sagittarius 2-IN1 M79 Lepus 1 M25 Sagittarius 2-IN1-8 M80 Scorpius 2 M26 Scutum 2 M81 Ursa Major 4 M27 Vupecula 3 M82 Ursa Major 4 M28 Sagittarius 2-IN1-8 M83 Hydra 9 M29 Cygnus 3 M84 Virgo IN2-5 M30 Capricornus 8 M85 Coma Berenices 4-5 M31 Andromeda 7-11 M86 Virgo IN2-5 M32 Andromeda 7-11 M87 Virgo IN2-5 M33 Triangulum 7-11 M88 Coma Berenices IN2-5 M34 Perseus 7-11 M89 Virgo IN2 M35 Gemini 1-6 M90 Virgo IN2-5 M36 Auriga 1-6 M91 Virgo IN2-5 M37 Auriga 1-6 M92 Hercules 3 M38 Auriga 1 M93 Puppis 1-6 M39 Cygnus 3-7 M94 Canes Venatici 4-5 M40 Ursa Major 4 M95 Leo 5 M41 Canis Major 1 M96 Leo 5 M42 Orion 1 M97 Ursa Major 4 M43 Orion 1 M98 Coma Berenices IN2-4-5 M44 Sagittarius 6 M99 Coma Berenices IN2-4-5 M45 Taurus 1-11 M100 Coma Berenices IN2-4-5 M46 Puppis 1-6 M101 Ursa Major 4 M47 Puppis 1-6 M102 Draco 4 M48 Hydra 6 M103 Cassiopeia 7 M49 Virgo 2-IN1-8 M104 Virgo 5-9-10 M50 Monoceros 1-6 M105 Leo 5 M51 Canes Venatici 4-10 M106 Canes Venatici 4-5 M52 Cassiopeia 7 M107 Ophiuchus 2 M53 Coma Berenices 4-5-10 M108 Ursa Major 4 M54 Sagittarius 2-IN1-8 M109 Ursa Major 4-5 M55 Sagittarius 2-8 M110 Andromeda 7-11 Messier Object List # NGC# Constellation Type Name, If Any Mag.