DOCSLIB.ORG

Lmi – Objektauswahl NGC

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

LMi – Objektauswahl NGC NGC 2859 NGC 3074 NGC 3158 NGC 3265 NGC 3381 NGC 3442 NGC 2922 NGC 3099 NGC 3159 NGC 3277 NGC 3395 NGC 3451 NGC 2942 NGC 3104 NGC 3160 NGC 3294 NGC 3396 NGC 3486 NGC 2955 NGC 3106 NGC 3161 NGC 3304 NGC 3400 NGC 3493 NGC 2965 NGC 3116 NGC 3163 NGC 3323 NGC 3413 NGC 3504 NGC 2971 NGC 3118 NGC 3219 NGC 3327 NGC 3414 NGC 3510 NGC 3003 NGC 3126 NGC 3232 NGC 3334 NGC 3418 NGC 3512 NGC 3012 NGC 3150 NGC 3235 NGC 3344 NGC 3424 NGC 3515 NGC 3013 NGC 3151 NGC 3245 NGC 3350 NGC 3430 NGC 3021 NGC 3152 NGC 3254 NGC 3380 NGC 3432 Zur Objektauswahl: Nummer anklicken Sternbild- Zur Übersichtskarte: Objekt in Aufsuchkarte anklicken Übersicht Zum Detailfoto: Objekt in Übersichtskarte anklicken LMi Übersichtskarte Auswahl NGC 2859_2922_2942_2955_2965_2971 Aufsuchkarte Auswahl NGC 3003_3012_3013_3021_3074 Aufsuchkarte Auswahl NGC 3099_3106_3116_3118_3126 Aufsuchkarte Auswahl NGC 3104_50_51_52_58_59_60_61_63 Aufsuchkarte Auswahl NGC 3219 Aufsuchkarte Auswahl NGC 3232_3235_3245_3254_3265_3277 Aufsuchkarte Auswahl NGC 3294_3304_3334 Aufsuchkarte Auswahl NGC 3323_3327_3344 Aufsuchkarte Auswahl NGC 3350_80_3400_14_18_51_86_93_3504_10_12_15 Aufsuchkarte Auswahl NGC 3381_3432 Aufsuchkarte LMi 46 Auswahl NGC 3395_3396_3413_3424_3430_3442 Aufsuchkarte Auswahl NGC 2859 Übersichtskarte Aufsuch- Auswahl karte NGC 2922 Übersichtskarte Aufsuch- Auswahl karte NGC 2942 Übersichtskarte Aufsuch- Auswahl karte NGC 2955 Übersichtskarte Aufsuch- Auswahl karte NGC 2965_2971 Übersichtskarte Aufsuch- Auswahl karte NGC 3003_3013_3021 Übersichtskarte Aufsuch- Auswahl karte NGC 3012 Übersichtskarte Aufsuch- Auswahl karte NGC 3074 Übersichtskarte Aufsuch- Auswahl karte NGC 3099 Übersichtskarte Aufsuch- Auswahl karte NGC 3104 Übersichtskarte Aufsuch- Auswahl karte NGC 3106_3116 Übersichtskarte Aufsuch- Auswahl karte NGC 3118 Übersichtskarte Aufsuch- Auswahl karte NGC 3126 Übersichtskarte Aufsuch- Auswahl karte NGC 3150_51_52_58_59_60_61_63 Übersichtskarte Aufsuch- Auswahl karte NGC 3219 Übersichtskarte Aufsuch- Auswahl karte NGC 3232_3235_3245 Übersichtskarte Aufsuch- Auswahl karte NGC 3254 Übersichtskarte Aufsuch- Auswahl karte NGC 3265_3277 Übersichtskarte Aufsuch- Auswahl karte NGC 3294_3304 Übersichtskarte Aufsuch- Auswahl karte NGC 3323 Übersichtskarte Aufsuch- Auswahl karte NGC 3327 Übersichtskarte Aufsuch- Auswahl karte NGC 3334 Übersichtskarte Aufsuch- Auswahl karte NGC 3344 Übersichtskarte Aufsuch- Auswahl karte NGC 3350 Übersichtskarte Aufsuch- Auswahl karte NGC 3380_3400_3414_3418 Übersichtskarte Aufsuch- Auswahl karte NGC 3381 Übersichtskarte Aufsuch- Auswahl karte NGC 3395_3396_3413_3424_3430 Übersichtskarte Aufsuch- Auswahl karte NGC 3432 Übersichtskarte Aufsuch- Auswahl karte NGC 3442 Übersichtskarte Aufsuch- Auswahl karte NGC 3451 Übersichtskarte Aufsuch- Auswahl karte NGC 3486_3510 Übersichtskarte Aufsuch- Auswahl karte NGC 3493_3504_3512_3515 Übersichtskarte Aufsuch- Auswahl karte NGC 2859 Detailfoto 4‘.8 x4‘.2 m 2859 NGC Übersichts- p Auswahl = 11. karte m 7 NGC 2922 Detailfoto 1‘.0 x0‘.4 m 2922 NGC Übersichts- p Auswahl = 14. karte m 6 NGC 2942 Detailfoto 2‘.2 x1‘.8 m 2942 NGC Übersichts- p Auswahl = 13. karte m 0 NGC 2955 Detailfoto 1‘.8 x1‘.0 m 2955 NGC Übersichts- p Auswahl = 13. karte m 5 NGC 2965 Detailfoto 1‘.2 x0‘.9 m 2965 NGC Übersichts- p Auswahl = 14. karte m 0 NGC 2971 Detailfoto 1‘.1 x0‘.7 m 2971 NGC Übersichts- p Auswahl = 15. karte m 0 NGC 3003 Detailfoto 5‘.9 x1‘.7 m 3003 NGC Übersichts- p Auswahl = 12. karte m 2 NGC 3012 Detailfoto 1‘.1 x1‘.0 m 3012 NGC Übersichts- p Auswahl = 14. karte m 0 NGC 3013 Detailfoto 0‘.4 x0‘.4 m 3013 NGC Übersichts- p Auswahl = 15. karte m 5 NGC 3021 Detailfoto 1‘.7 x1‘.0 m 3021 NGC Übersichts- p Auswahl = 12. karte m 8 NGC 3074 Detailfoto 2‘.5 x2‘.3 m 3074 NGC Übersichts- p Auswahl = 14. karte m 2 NGC 3099 Detailfoto 0‘.4 x0‘.4 m 3099 NGC Übersichts- p Auswahl = 14. karte m 5 NGC 3104 Detailfoto 3‘.2 x2‘.3 m 3104 NGC Übersichts- p Auswahl = 13. karte m 6 NGC 3106 Detailfoto 1‘.8 x1‘.8 m 3106 NGC Übersichts- p Auswahl = 13. karte m 4 NGC 3116 Detailfoto 0‘.3 x0‘.3 m 3116 NGC Übersichts- p Auswahl = 15. karte m 3 NGC 3118 Detailfoto 2‘.4 x0‘.3 m 3118 NGC Übersichts- p Auswahl = 14. karte m 0 NGC 3126 Detailfoto 2‘.5 x0‘.5 m 3126 NGC Übersichts- p Auswahl = 13. karte m 5 NGC 3150_3151_3159_3161_3163 Detailfoto 0‘.3 x0‘.2 m 3161 NGC p = 14. 1‘.4 x 1‘.4 m 3163 NGC p 14. = m NGC 3163 5 m 1 m 3159 NGC 1‘.3 x1‘.2 p = 14. m 4 1‘.0 x0‘.6 m 3151 NGC 0‘.5 x0‘.4 m 3150 NGC Übersichts- p p Auswahl = 15. = 15. karte m m 0 0 NGC 3152_3158_3160 Detailfoto 1‘.2 x0‘.3 m 3160 NGC 2‘.3 x2‘.1 m 3158 NGC 0‘.4 x0‘.2 m 3152 NGC Übersichts- p p p Auswahl = 15. = 12. = 15. karte m m m 2 9 0 NGC 3219 Detailfoto 0‘.2 x0‘.2 m 3219 NGC Übersichts- p Auswahl = 16. karte m 0 NGC 3232 Detailfoto 0‘.6 x0‘.6 m 3232 NGC Übersichts- p Auswahl = 15. karte m 4 NGC 3235 Detailfoto 1‘.2 x0‘.9 m 3235 NGC Übersichts- p Auswahl = 14. karte m 3 NGC 3245 Detailfoto 3‘.2 x1‘.9 m 3245 NGC Übersichts- p Auswahl = 11. karte m 7 NGC 3254 Detailfoto 5‘.1 x1‘.9 m 3254 NGC Übersichts- p Auswahl = 12. karte m 2 NGC 3265 Detailfoto 1‘.2 x1‘.0 m 3265 NGC Übersichts- p Auswahl = 14. karte m 1 NGC 3277 Detailfoto 2‘.0 x1‘.9 m 3277 NGC Übersichts- p Auswahl = 12. karte m 6 NGC 3294 Detailfoto 3‘.3 x1‘.8 m 3294 NGC Übersichts- p Auswahl = 12. karte m 2 NGC 3304 Detailfoto 1‘.7 x0‘.7 m 3304 NGC Übersichts- p Auswahl = 14. karte m 4 NGC 3323 Detailfoto 1‘.3 x0‘.7 m 3323 NGC Übersichts- p Auswahl = 14. karte m 3 NGC 3327 Detailfoto 1‘.3 x0‘.8 m 3327 NGC Übersichts- p Auswahl = 14. karte m 2 NGC 3334 Detailfoto 1‘.1 x1‘.0 m 3334 NGC Übersichts- p Auswahl = 14. karte m 0 NGC 3344 Detailfoto 6‘.9 x6‘.5 m 3344 NGC Übersichts- p Auswahl = 10. karte m 5 NGC 3350 Detailfoto 0‘.6 x0‘.6 m 3350 NGC Übersichts- p Auswahl = 15. karte m 5 NGC 3380 Detailfoto 1‘.9 x1‘.6 m 3380 NGC Übersichts- p Auswahl = 13. karte m 6 NGC 3381 Detailfoto 2‘.4 x2‘.2 m 3381 NGC Übersichts- p Auswahl = 12. karte m 8 NGC 3395_3396 Detailfoto 2‘.8 x1‘.2 m 3396 NGC 1‘.9 x1‘.2 m 3395 NGC Übersichts- p p Auswahl = 12. = 12. karte m m 6 4 NGC 3400 Detailfoto 1‘.4 x0‘.9 m 3400 NGC Übersichts- p Auswahl = 14. karte m 3 NGC 3413 Detailfoto 2‘.4 x1‘.0 m 3413 NGC Übersichts- p Auswahl = 13. karte m 1 NGC 3414 Detailfoto 3‘.6 x2‘.7 m 3414 NGC Übersichts- p Auswahl = 11. karte m 8 NGC 3418 Detailfoto 1‘.4 x1‘.1 m 3418 NGC Übersichts- p Auswahl = 14. karte m 1 NGC 3423_3430 Detailfoto 3‘.9 x2‘.3 m 3430 NGC 3‘.4 x0‘.9 m 3424 NGC Übersichts- p p Auswahl = 12. = 13. karte m m 2 2 NGC 3432 Detailfoto 6‘.2 x1‘.5 m 3432 NGC Übersichts- p Auswahl = 11. karte m 7 NGC 3442 Detailfoto 0‘.7 x0‘.6 m 3442 NGC Übersichts- p Auswahl = 13. karte m 7 NGC 3451 Detailfoto 1‘.7 x0‘.8 m 3451 NGC Übersichts- p Auswahl = 13. karte m 5 NGC 3486 Detailfoto 6‘.9 x5‘.4 m 3486 NGC Übersichts- p Auswahl = 10. karte m 9 NGC 3493 Detailfoto 1‘.0 x0‘.3 m 3493 NGC Übersichts- p Auswahl = 15. karte m 3 NGC 3504 Detailfoto 2‘.7 x2‘.2 m 3504 NGC Übersichts- p Auswahl = 11. karte m 8 NGC 3510 Detailfoto 3‘.8 x0‘.9 m 3510 NGC Übersichts- p Auswahl = 12. karte m 2 NGC 3512 Detailfoto 1‘.7 x1‘.5 m 3512 NGC Übersichts- p Auswahl = 12. karte m 3 NGC 3515 Detailfoto 1‘.1 x0‘.9 m 3515 NGC Übersichts- p Auswahl = 14. karte m 8.
Recommended publications
  • Infrared Spectroscopy of Nearby Radio Active Elliptical Galaxies

    Infrared Spectroscopy of Nearby Radio Active Elliptical Galaxies

    The Astrophysical Journal Supplement Series, 203:14 (11pp), 2012 November doi:10.1088/0067-0049/203/1/14 C 2012. The American Astronomical Society. All rights reserved. Printed in the U.S.A. INFRARED SPECTROSCOPY OF NEARBY RADIO ACTIVE ELLIPTICAL GALAXIES Jeremy Mould1,2,9, Tristan Reynolds3, Tony Readhead4, David Floyd5, Buell Jannuzi6, Garret Cotter7, Laura Ferrarese8, Keith Matthews4, David Atlee6, and Michael Brown5 1 Centre for Astrophysics and Supercomputing Swinburne University, Hawthorn, Vic 3122, Australia; [email protected] 2 ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) 3 School of Physics, University of Melbourne, Melbourne, Vic 3100, Australia 4 Palomar Observatory, California Institute of Technology 249-17, Pasadena, CA 91125 5 School of Physics, Monash University, Clayton, Vic 3800, Australia 6 Steward Observatory, University of Arizona (formerly at NOAO), Tucson, AZ 85719 7 Department of Physics, University of Oxford, Denys, Oxford, Keble Road, OX13RH, UK 8 Herzberg Institute of Astrophysics Herzberg, Saanich Road, Victoria V8X4M6, Canada Received 2012 June 6; accepted 2012 September 26; published 2012 November 1 ABSTRACT In preparation for a study of their circumnuclear gas we have surveyed 60% of a complete sample of elliptical galaxies within 75 Mpc that are radio sources. Some 20% of our nuclear spectra have infrared emission lines, mostly Paschen lines, Brackett γ , and [Fe ii]. We consider the influence of radio power and black hole mass in relation to the spectra. Access to the spectra is provided here as a community resource. Key words: galaxies: elliptical and lenticular, cD – galaxies: nuclei – infrared: general – radio continuum: galaxies ∼ 1. INTRODUCTION 30% of the most massive galaxies are radio continuum sources (e.g., Fabbiano et al.
  • Lemmings &Ndash; I. the Emerlin Legacy Survey of Nearby Galaxies. 1.5-Ghz Parsec-Scale Radio Structures and Cores

    Lemmings &Ndash; I. the Emerlin Legacy Survey of Nearby Galaxies. 1.5-Ghz Parsec-Scale Radio Structures and Cores

    MNRAS 476, 3478–3522 (2018) doi:10.1093/mnras/sty342 Advance Access publication 2018 February 9 Downloaded from https://academic.oup.com/mnras/article-abstract/476/3/3478/4848304 by Southampton Oceanography Centre National Oceanographic Library user on 12 May 2020 LeMMINGs – I. The eMERLIN legacy survey of nearby galaxies. 1.5-GHz parsec-scale radio structures and cores R. D. Baldi,1‹ D. R. A. Williams,1 I. M. McHardy,1 R. J. Beswick,2 M. K. Argo,2,3 B. T. Dullo,4 J. H. Knapen,5,6 E. Brinks,7 T. W. B. Muxlow,2 S. Aalto,8 A. Alberdi,9 G. J. Bendo,2,10 S. Corbel,11,12 R. Evans,13 D. M. Fenech,14 D. A. Green,15 H.-R. Klockner,¨ 16 E. Kording,¨ 17 P. Kharb, 18 T. J. Maccarone,19 I. Mart´ı-Vidal,8 C. G. Mundell,20 F. Panessa,21 A. B. Peck,22 M. A. Perez-Torres,´ 9 D. J. Saikia,18 P. Saikia,17,23 F. Shankar,1 R. E. Spencer,2 I. R. Stevens,24 P. Uttley25 and J. Westcott7 Affiliations are listed at the end of the paper Accepted 2018 February 2. Received 2018 January 19; in original form 2018 January 19 ABSTRACT We present the first data release of high-resolution (≤0.2 arcsec) 1.5-GHz radio images of 103 nearby galaxies from the Palomar sample, observed with the eMERLIN array, as part of the LeMMINGs survey. This sample includes galaxies which are active (low-ionization nuclear emission-line regions [LINER] and Seyfert) and quiescent (H II galaxies and absorption line galaxies, ALGs), which are reclassified based upon revised emission-line diagrams.
  • Appendix A: the HRS+ Members

    Appendix A: the HRS+ Members

    Appendix A: The HRS+ Members 207 Table A.1: The general properties of galaxies comprising the HRS+ sample. Each column contains: (1) the HRS+ identification 208 number; (2) an alternative name taken from either the New General Catalogue (NGC; Dreyer, 1888), the Catalogue of Galaxies and Clusters of Galaxies (CGCG; Zwicky et al., 1961), Uppsala General Catalogue (UGC; Nilson, 1973), the Virgo Cluster Catalogue (VCC; Binggeli et al., 1985), and the Index Catalogue (IC; Dreyer, 1908); (3) J2000 right ascension, from NED; (4) J2000 declination, from NED; (5) distance; (6) the morphological classification from NED; (7) total 2MASS K band magnitude −2 (Skrutskie et al., 2006); (8) the optical isophotal distance D25 (25 mag arcsec ); (9) the heliocentric radial velocity from NED; (10) the cluster or cloud membership; and (11) the galactic extinction Schlegel et al., 1998. ◦ ′ ′′ −1 HRS+ Alt.Name R.A.(hms) Dec.( ) D (Mpc) Type KStot D25 (′) V (km s ) Member AB (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) 1 CGCG 123-035 10 17 39.66 +22 48 35.9 15.7 Pec 11.59 1.00 1175 Leo Cl. 0.13 2 UGC 5588 10 20 57.13 +25 21 53.4 17.2 S? 11.03 0.52 1291 Leo Cl. 0.10 3 NGC 3226 10 23 27.01 +19 53 54.7 15.3 E2:pec;LINER;Sy3 8.57 3.16 1169 Leo Cl. 0.10 4 NGC 3227 10 23 30.58 +19 51 54.2 15.4 SAB(s)pec;Sy1.5 7.64 5.37 1148 Leo Cl.
  • SUPERMASSIVE BLACK HOLES and THEIR HOST SPHEROIDS III. the MBH − Nsph CORRELATION

    SUPERMASSIVE BLACK HOLES and THEIR HOST SPHEROIDS III. the MBH − Nsph CORRELATION

    The Astrophysical Journal, 821:88 (8pp), 2016 April 20 doi:10.3847/0004-637X/821/2/88 © 2016. The American Astronomical Society. All rights reserved. SUPERMASSIVE BLACK HOLES AND THEIR HOST SPHEROIDS. III. THE MBH–nsph CORRELATION Giulia A. D. Savorgnan Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia; [email protected] Received 2015 December 6; accepted 2016 March 6; published 2016 April 13 ABSTRACT The Sérsic R1 n model is the best approximation known to date for describing the light distribution of stellar spheroidal and disk components, with the Sérsic index n providing a direct measure of the central radial concentration of stars. The Sérsic index of a galaxy’s spheroidal component, nsph, has been shown to tightly correlate with the mass of the central supermassive black hole, MBH.TheMnBH– sph correlation is also expected from other two well known scaling relations involving the spheroid luminosity, Lsph:theLsph–n sph and the MLBH– sph. Obtaining an accurate estimate of the spheroid Sérsic index requires a careful modeling of a galaxy’s light distribution and some studies have failed to recover a statistically significant MnBH– sph correlation. With the aim of re-investigating the MnBH– sph and other black hole mass scaling relations, we performed a detailed (i.e., bulge, disks, bars, spiral arms, rings, halo, nucleus, etc.) decomposition of 66 galaxies, with directly measured black hole masses, that had been imaged at 3.6 μm with Spitzer.Inthispaper,the third of this series, we present an analysis of the Lsph–n sph and MnBH– sph diagrams.
  • Gone Without a Bang: an Archival HST Survey for Disappearing Massive Stars

    Gone Without a Bang: an Archival HST Survey for Disappearing Massive Stars

    MNRAS 453, 2885–2900 (2015) doi:10.1093/mnras/stv1809 Gone without a bang: an archival HST survey for disappearing massive stars Thomas M. Reynolds,1,2‹ Morgan Fraser1 and Gerard Gilmore1 1Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK 2Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Vais¨ al¨ antie¨ 20, FI-21500 Piikkio,¨ Finland Downloaded from Accepted 2015 August 4. Received 2015 July 16; in original form 2015 May 27 ABSTRACT It has been argued that a substantial fraction of massive stars may end their lives without http://mnras.oxfordjournals.org/ an optically bright supernova (SN), but rather collapse to form a black hole. Such an event would not be detected by current SN surveys, which are focused on finding bright transients. Kochanek et al. proposed a novel survey for such events, using repeated observations of nearby galaxies to search for the disappearance of a massive star. We present such a survey, using the first systematic analysis of archival Hubble Space Telescope images of nearby galaxies with the aim of identifying evolved massive stars which have disappeared, without an accompanying optically bright SN. We consider a sample of 15 galaxies, with at least three epochs of Hubble Space Telescope imaging taken between 1994 and 2013. Within this data, we find one candidate at CERN - European Organization for Nuclear Research on September 15, 2016 which is consistent with a 25–30 M yellow supergiant which has undergone an optically dark core-collapse. Key words: stars: evolution – stars: massive – supernovae: general. plosion, and Type IIL (Linear) SNe which have a steady decline 1 INTRODUCTION in luminosity from peak.
  • Lemmings. I. the Emerlin Legacy Survey of Nearby Galaxies. 1.5-Ghz Parsec-Scale Radio Structures and Cores

    Lemmings. I. the Emerlin Legacy Survey of Nearby Galaxies. 1.5-Ghz Parsec-Scale Radio Structures and Cores

    MNRAS 000,1{44 (2018) Preprint 8 February 2018 Compiled using MNRAS LATEX style file v3.0 LeMMINGs. I. The eMERLIN legacy survey of nearby galaxies. 1.5-GHz parsec-scale radio structures and cores R. D. Baldi1?, D. R. A. Williams1, I. M. McHardy1, R. J. Beswick2, M. K. Argo2;3, B. T. Dullo4, J. H. Knapen5;6, E. Brinks7, T. W. B. Muxlow2, S. Aalto8, A. Alberdi9, G. J. Bendo2;10, S. Corbel11;12, R. Evans13, D. M. Fenech14, D. A. Green15, H.-R. Kl¨ockner16, E. K¨ording17, P. Kharb18, T. J. Maccarone19, I. Mart´ı-Vidal8, C. G. Mundell20, F. Panessa21, A. B. Peck22, M. A. P´erez-Torres9, D. J. Saikia18, P. Saikia17;23, F. Shankar1, R. E. Spencer2, I. R. Stevens24, P. Uttley25 and J. Westcott7 1 School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK 2 Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK 3 Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK 4 Departamento de Astrofisica y Ciencias de la Atmosfera, Universidad Complutense de Madrid, E-28040 Madrid, Spain 5 Instituto de Astrofisica de Canarias, Via Lactea S/N, E-38205, La Laguna, Tenerife, Spain 6 Departamento de Astrofisica, Universidad de La Laguna, E-38206, La Laguna, Tenerife, Spain 7 Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, UK 8 Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 43992 Onsala, Sweden 9 Instituto de Astrofisica de Andaluc´ıa(IAA, CSIC); Glorieta de la Astronom´ıa s/n, 18008-Granada, Spain 10 ALMA Regional Centre Node, UK 11 Laboratoire AIM (CEA/IRFU - CNRS/INSU - Universit´eParis Diderot), CEA DSM/IRFU/SAp, F-91191 Gif-sur-Yvette, France 12 Station de Radioastronomie de Nan¸cay, Observatoire de Paris, PSL Research University, CNRS, Univ.
  • Classification of Galaxies Using Fractal Dimensions

    Classification of Galaxies Using Fractal Dimensions

    UNLV Retrospective Theses & Dissertations 1-1-1999 Classification of galaxies using fractal dimensions Sandip G Thanki University of Nevada, Las Vegas Follow this and additional works at: https://digitalscholarship.unlv.edu/rtds Repository Citation Thanki, Sandip G, "Classification of galaxies using fractal dimensions" (1999). UNLV Retrospective Theses & Dissertations. 1050. http://dx.doi.org/10.25669/8msa-x9b8 This Thesis is protected by copyright and/or related rights. It has been brought to you by Digital Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Thesis has been accepted for inclusion in UNLV Retrospective Theses & Dissertations by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted.
  • The Herschel Sprint PHOTO ILLUSTRATION: PATRICIA GILLIS-COPPOLA, HERSCHEL IMAGE: WIKIMEDIA S&T

    The Herschel Sprint PHOTO ILLUSTRATION: PATRICIA GILLIS-COPPOLA, HERSCHEL IMAGE: WIKIMEDIA S&T

    The Herschel Sprint PHOTO ILLUSTRATION: PATRICIA GILLIS-COPPOLA, HERSCHEL IMAGE: WIKIMEDIA S&T 34 April 2015 sky & telescope William Herschel’s Extraordinary Night of DiscoveryMark Bratton Recreating the legendary sweep of April 11, 1785 There’s little doubt that William Herschel was the most clearly with his instruments. As we will see, he did make signifi cant astronomer of the 18th century. His accom- occasional errors in interpretation, despite the superior plishments included the discovery of Uranus, infrared optics; for instance, he thought that the planetary nebula radiation, and four planetary satellites, as well as the M57 was a ring of stars. compilation of two extensive catalogues of double and The other factor contributing to Herschel’s interest multiple stars. His most lasting achievement, however, was the success of his sister, Caroline, in her study of the was his exhaustive search for undiscovered star clusters sky. He had built her a small telescope, encouraging her and nebulae, a key component in his quest to understand to search for double stars and comets. She located Messier what he called “the construction of the heavens.” In Her- objects and more, occasionally fi nding star clusters and schel’s time, astronomers were concerned principally with nebulae that had escaped the French astronomer’s eye. the study of solar system objects. The search for clusters Over the course of a year of observing, she discovered and nebulae was, up to that point, a haphazard aff air, with about a dozen star clusters and galaxies, occasionally not- a total of only 138 recorded by all the observers in history.
  • A Search For" Dwarf" Seyfert Nuclei. VII. a Catalog of Central Stellar

    A Search For" Dwarf" Seyfert Nuclei. VII. a Catalog of Central Stellar

    TO APPEAR IN The Astrophysical Journal Supplement Series. Preprint typeset using LATEX style emulateapj v. 26/01/00 A SEARCH FOR “DWARF” SEYFERT NUCLEI. VII. A CATALOG OF CENTRAL STELLAR VELOCITY DISPERSIONS OF NEARBY GALAXIES LUIS C. HO The Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101 JENNY E. GREENE1 Department of Astrophysical Sciences, Princeton University, Princeton, NJ ALEXEI V. FILIPPENKO Department of Astronomy, University of California, Berkeley, CA 94720-3411 AND WALLACE L. W. SARGENT Palomar Observatory, California Institute of Technology, MS 105-24, Pasadena, CA 91125 To appear in The Astrophysical Journal Supplement Series. ABSTRACT We present new central stellar velocity dispersion measurements for 428 galaxies in the Palomar spectroscopic survey of bright, northern galaxies. Of these, 142 have no previously published measurements, most being rela- −1 tively late-type systems with low velocity dispersions (∼<100kms ). We provide updates to a number of literature dispersions with large uncertainties. Our measurements are based on a direct pixel-fitting technique that can ac- commodate composite stellar populations by calculating an optimal linear combination of input stellar templates. The original Palomar survey data were taken under conditions that are not ideally suited for deriving stellar veloc- ity dispersions for galaxies with a wide range of Hubble types. We describe an effective strategy to circumvent this complication and demonstrate that we can still obtain reliable velocity dispersions for this sample of well-studied nearby galaxies. Subject headings: galaxies: active — galaxies: kinematics and dynamics — galaxies: nuclei — galaxies: Seyfert — galaxies: starburst — surveys 1. INTRODUCTION tors, apertures, observing strategies, and analysis techniques.
  • SAC's 110 Best of the NGC

    SAC's 110 Best of the NGC

    SAC's 110 Best of the NGC by Paul Dickson Version: 1.4 | March 26, 1997 Copyright °c 1996, by Paul Dickson. All rights reserved If you purchased this book from Paul Dickson directly, please ignore this form. I already have most of this information. Why Should You Register This Book? Please register your copy of this book. I have done two book, SAC's 110 Best of the NGC and the Messier Logbook. In the works for late 1997 is a four volume set for the Herschel 400. q I am a beginner and I bought this book to get start with deep-sky observing. q I am an intermediate observer. I bought this book to observe these objects again. q I am an advance observer. I bought this book to add to my collect and/or re-observe these objects again. The book I'm registering is: q SAC's 110 Best of the NGC q Messier Logbook q I would like to purchase a copy of Herschel 400 book when it becomes available. Club Name: __________________________________________ Your Name: __________________________________________ Address: ____________________________________________ City: __________________ State: ____ Zip Code: _________ Mail this to: or E-mail it to: Paul Dickson 7714 N 36th Ave [email protected] Phoenix, AZ 85051-6401 After Observing the Messier Catalog, Try this Observing List: SAC's 110 Best of the NGC [email protected] http://www.seds.org/pub/info/newsletters/sacnews/html/sac.110.best.ngc.html SAC's 110 Best of the NGC is an observing list of some of the best objects after those in the Messier Catalog.
  • X-Ray Spectral Survey with XMM–Newton of a Complete Sample of Nearby Seyfert Galaxies

    X-Ray Spectral Survey with XMM–Newton of a Complete Sample of Nearby Seyfert Galaxies

    A&A 446, 459–470 (2006) Astronomy DOI: 10.1051/0004-6361:20053893 & c ESO 2006 Astrophysics X-ray spectral survey with XMM–Newton of a complete sample of nearby Seyfert galaxies M. Cappi1, F. Panessa2, L. Bassani1,M.Dadina1, G. DiCocco1, A. Comastri3, R. Della Ceca4, A. V. Filippenko5, F. Gianotti1,L.C.Ho6, G. Malaguti1,J.S.Mulchaey6,G.G.C.Palumbo7, E. Piconcelli8,W.L.W.Sargent9, J. Stephen1, M. Trifoglio1, and K. A. Weaver10 1 INAF-IASF Sezione di Bologna, via Gobetti 101, 40129 Bologna, Italy e-mail: [email protected] 2 Instituto de Fisica de Cantabria (CSIC-UC), Avda de los Castros, 39005 Santander, Spain 3 INAF- Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy 4 INAF- Osservatorio Astronomico di Brera, via Brera 28, 20121 Milano, Italy 5 Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA 6 Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101, USA 7 Dipartimento di Astronomia, Universita’ degli Studi di Bologna, via Ranzani 1, 40127 Bologna, Italy 8 XMM–Newton Science Operation Center/RSSD-ESA, Apartado 50727, 28080 Madrid, Spain 9 Department of Astronomy, California Institute of Technology, Pasadena, CA 91125, USA 10 Laboratory for High Energy Astrophysics, NASA’s Goddard Space Flight Center, Greenbelt, MD 20771, USA Received 23 July 2005 / Accepted 28 September 2005 ABSTRACT Results obtained from an X-ray spectral survey of nearby Seyfert galaxies using XMM–Newton are reported. The sample was optically selected, well defined, complete in B magnitude, and distance limited: it consists of the nearest (D ∼< 22 Mpc) 27 Seyfert galaxies (9 of type 1, 18 of type 2) taken from the Ho et al.
  • 7.5 X 11.5.Threelines.P65

    7.5 X 11.5.Threelines.P65

    Cambridge University Press 978-0-521-19267-5 - Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer’s New General Catalogue Wolfgang Steinicke Index More information Name index The dates of birth and death, if available, for all 545 people (astronomers, telescope makers etc.) listed here are given. The data are mainly taken from the standard work Biographischer Index der Astronomie (Dick, Brüggenthies 2005). Some information has been added by the author (this especially concerns living twentieth-century astronomers). Members of the families of Dreyer, Lord Rosse and other astronomers (as mentioned in the text) are not listed. For obituaries see the references; compare also the compilations presented by Newcomb–Engelmann (Kempf 1911), Mädler (1873), Bode (1813) and Rudolf Wolf (1890). Markings: bold = portrait; underline = short biography. Abbe, Cleveland (1838–1916), 222–23, As-Sufi, Abd-al-Rahman (903–986), 164, 183, 229, 256, 271, 295, 338–42, 466 15–16, 167, 441–42, 446, 449–50, 455, 344, 346, 348, 360, 364, 367, 369, 393, Abell, George Ogden (1927–1983), 47, 475, 516 395, 395, 396–404, 406, 410, 415, 248 Austin, Edward P. (1843–1906), 6, 82, 423–24, 436, 441, 446, 448, 450, 455, Abbott, Francis Preserved (1799–1883), 335, 337, 446, 450 458–59, 461–63, 470, 477, 481, 483, 517–19 Auwers, Georg Friedrich Julius Arthur v. 505–11, 513–14, 517, 520, 526, 533, Abney, William (1843–1920), 360 (1838–1915), 7, 10, 12, 14–15, 26–27, 540–42, 548–61 Adams, John Couch (1819–1892), 122, 47, 50–51, 61, 65, 68–69, 88, 92–93,