7.5 X 11.5.Doubleline.P65
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
FY08 Technical Papers by GSMTPO Staff
AURA/NOAO ANNUAL REPORT FY 2008 Submitted to the National Science Foundation July 23, 2008 Revised as Complete and Submitted December 23, 2008 NGC 660, ~13 Mpc from the Earth, is a peculiar, polar ring galaxy that resulted from two galaxies colliding. It consists of a nearly edge-on disk and a strongly warped outer disk. Image Credit: T.A. Rector/University of Alaska, Anchorage NATIONAL OPTICAL ASTRONOMY OBSERVATORY NOAO ANNUAL REPORT FY 2008 Submitted to the National Science Foundation December 23, 2008 TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................. 1 1 SCIENTIFIC ACTIVITIES AND FINDINGS ..................................................................................... 2 1.1 Cerro Tololo Inter-American Observatory...................................................................................... 2 The Once and Future Supernova η Carinae...................................................................................................... 2 A Stellar Merger and a Missing White Dwarf.................................................................................................. 3 Imaging the COSMOS...................................................................................................................................... 3 The Hubble Constant from a Gravitational Lens.............................................................................................. 4 A New Dwarf Nova in the Period Gap............................................................................................................ -
Nd AAS Meeting Abstracts
nd AAS Meeting Abstracts 101 – Kavli Foundation Lectureship: The Outreach Kepler Mission: Exoplanets and Astrophysics Search for Habitable Worlds 200 – SPD Harvey Prize Lecture: Modeling 301 – Bridging Laboratory and Astrophysics: 102 – Bridging Laboratory and Astrophysics: Solar Eruptions: Where Do We Stand? Planetary Atoms 201 – Astronomy Education & Public 302 – Extrasolar Planets & Tools 103 – Cosmology and Associated Topics Outreach 303 – Outer Limits of the Milky Way III: 104 – University of Arizona Astronomy Club 202 – Bridging Laboratory and Astrophysics: Mapping Galactic Structure in Stars and Dust 105 – WIYN Observatory - Building on the Dust and Ices 304 – Stars, Cool Dwarfs, and Brown Dwarfs Past, Looking to the Future: Groundbreaking 203 – Outer Limits of the Milky Way I: 305 – Recent Advances in Our Understanding Science and Education Overview and Theories of Galactic Structure of Star Formation 106 – SPD Hale Prize Lecture: Twisting and 204 – WIYN Observatory - Building on the 308 – Bridging Laboratory and Astrophysics: Writhing with George Ellery Hale Past, Looking to the Future: Partnerships Nuclear 108 – Astronomy Education: Where Are We 205 – The Atacama Large 309 – Galaxies and AGN II Now and Where Are We Going? Millimeter/submillimeter Array: A New 310 – Young Stellar Objects, Star Formation 109 – Bridging Laboratory and Astrophysics: Window on the Universe and Star Clusters Molecules 208 – Galaxies and AGN I 311 – Curiosity on Mars: The Latest Results 110 – Interstellar Medium, Dust, Etc. 209 – Supernovae and Neutron -
Blasts from the Past Historic Supernovas
BLASTS from the PAST: Historic Supernovas 185 386 393 1006 1054 1181 1572 1604 1680 RCW 86 G11.2-0.3 G347.3-0.5 SN 1006 Crab Nebula 3C58 Tycho’s SNR Kepler’s SNR Cassiopeia A Historical Observers: Chinese Historical Observers: Chinese Historical Observers: Chinese Historical Observers: Chinese, Japanese, Historical Observers: Chinese, Japanese, Historical Observers: Chinese, Japanese Historical Observers: European, Chinese, Korean Historical Observers: European, Chinese, Korean Historical Observers: European? Arabic, European Arabic, Native American? Likelihood of Identification: Possible Likelihood of Identification: Probable Likelihood of Identification: Possible Likelihood of Identification: Possible Likelihood of Identification: Definite Likelihood of Identification: Definite Likelihood of Identification: Possible Likelihood of Identification: Definite Likelihood of Identification: Definite Distance Estimate: 8,200 light years Distance Estimate: 16,000 light years Distance Estimate: 3,000 light years Distance Estimate: 10,000 light years Distance Estimate: 7,500 light years Distance Estimate: 13,000 light years Distance Estimate: 10,000 light years Distance Estimate: 7,000 light years Distance Estimate: 6,000 light years Type: Core collapse of massive star Type: Core collapse of massive star Type: Core collapse of massive star? Type: Core collapse of massive star Type: Thermonuclear explosion of white dwarf Type: Thermonuclear explosion of white dwarf? Type: Core collapse of massive star Type: Thermonuclear explosion of white dwarf Type: Core collapse of massive star NASA’s ChANdrA X-rAy ObServAtOry historic supernovas chandra x-ray observatory Every 50 years or so, a star in our Since supernovas are relatively rare events in the Milky historic supernovas that occurred in our galaxy. Eight of the trine of the incorruptibility of the stars, and set the stage for observed around 1671 AD. -
Today's Topics A. Supernova Remnants. B. Neutron Stars. C
Today’s Topics Wednesday, November 3, 2020 (Week 11, lecture 31) – Chapter 23. A. Supernova remnants. B. Neutron stars. C. Pulsars. Cassiopeia A: Supernova Remnant Supernova in the late 1600’s Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Cassiopeia A: Supernova Remnant neutron star Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Cassiopeia A: Supernova Remnant neutron star 10 light years Cassiopeia A supernova remnant (type II) False color composite image from Hubble (optical = gold), Spitzer (IR = red),and Chandra (X-ray = green & blue) [source: Wikipedia, Oliver Krause (Steward Observatory) and co-workers] Crab Nebula: Supernova Remnant Supernova in 1054 AD (type II) constellation: Taurus [NASA/ESA/Hubble, 1999-2000] Crab Nebula: Supernova Remnant Supernova in 1054 AD (type II) constellation: Taurus 11 light years [NASA/ESA/Hubble, 1999-2000] Tycho’s Supernova Remnant SN 1572 (type I = white dwarf + red giant binary explosion) Constellation: Cassiopeia Composite image: blue = hard x-rays, red = soft x-rays, background stars = optical [NASA/Chandra (2009)] Tycho’s Supernova Remnant SN 1572 (type I = white dwarf + red giant binary explosion) Constellation: Cassiopeia 10 light years Composite image: blue = hard x-rays, red = soft x-rays, background stars = optical [NASA/Chandra (2009)] Where do heavy elements come from ? ▪ Supernovae are a major source of heavy elements ▪ Most of the iron core of a massive star is “dissolves” into protons in the core collapse. -
The Nova Stella and Its Observers
Running title: Nova stella 1572 AD The Nova Stella and its Observers P. Ruiz–Lapuente ∗,∗∗ 1. Introduction In 1572, physicists were still living with the concepts of mechanics inherited from Aris- totle and with the classification of the elements from the Greek philosopher. The growing criticism towards the Aristotelian views on the natural world could not turn very produc- tive, because the necessary elements of calculus and the empirical tools to move into a better frame were still lacking. However, in astronomy, observers had witnessed by that time the comet of 1556 and they would witness a new one in 1577. Moreover, since 1543 when De Revolutionibus Orbium Caelestium by Copernicus came to light, the apparent motion of the planets had a radically different explanation from the ortodox geocentrism. The new helio- centric view slowly won supporters among astronomers. The explanations concerning the planetary motions would depart from the “common sense” intuitions that had placed the earth sitting still at the center of the planetary system. Thus the “nova stella” in 1572 happened in the middle of the geocentric–versus–heliocentric debate. The other “nova”, the one that would be observed in 1604 by Kepler, came just shortly after the posthumous publication of Tycho Brahe’s Astronomiae Instauratae Progymnasmata1 which contains most of the debates in relation to the appearance of the “new star”2. arXiv:astro-ph/0502399v1 21 Feb 2005 The machinery moving the planetary spheres, i.e. the intrincate system of solid spheres rotating by the motion imparted to them as the wheels in a clock, was not directly affected by the new heliocentric proposal. -
John P. Hughes
John P. Hughes Professional History 2011 { Professor II, Rutgers University 2005 { 2011 Professor I, Rutgers University 2000 { 2005 Associate Professor, Rutgers University 1996 { 2000 Assistant Professor, Department of Physics and Astronomy, Rutgers University, New Brunswick, NJ 1988 { 1996 Staff Scientist, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 1984 { 1987 Postdoctoral Fellow, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Education 1984 Columbia University, Ph.D., Physics 1980 Columbia University, M.A., Physics 1978 Columbia College, A.B., Physics Awards and Appointments 2010 Elected member, Executive committee of the High Energy Astrophysics Division of the American Astronomical Society 2009 Rutgers University Board of Trustees Award for Excellence in Research 2008 Fellow, American Physical Society 2006 { 2007 Visiting Fellow, Department of Astrophysical Sciences, Princeton University 1999 { 2000 Visiting Scientist, Service d'Astrophysique, CEA-Saclay 1993 NASA Public Service Medal 1993 Visiting Research Scientist, Kyoto University, Japan 1992 NASA Group Achievement Award for AXAF VETA 1992 Smithsonian Institution Special Achievement Award 1991 NASA Group Achievement Award for ROSAT 1985 Japanese Foreign Research Fellow, The Institute of Space and Astronautical Science, Tokyo, Japan 1984 { 1996 Associate, Harvard College Observatory 1984 { 1987 Smithsonian Postdoctoral Fellow 1978 { 1980 Columbia University Faculty Fellow 1977 Summer Research Assistant, Bell Labs, Murray Hill, NJ Professional Activities -
The Iso Handbook
THE ISO HANDBOOK Volume I: ISO – Mission & Satellite Overview Martin F. Kessler1,2, Thomas G. M¨uller1,4, Kieron Leech 1, Christophe Arviset1, Pedro Garc´ıa-Lario1, Leo Metcalfe1, Andy M. T. Pollock1,3, Timo Prusti1,2 and Alberto Salama1 SAI-2000-035/Dc, Version 2.0 November, 2003 1 ISO Data Centre, Science Operations and Data Systems Division Research and Scientific Support Department of ESA, Villafranca del Castillo, P.O. Box 50727, E-28080 Madrid, Spain 2 ESTEC, Science Operations and Data Systems Division Research and Scientific Support Department of ESA, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands 3 Computer & Scientific Co. Ltd., 230 Graham Road, Sheffield S10 3GS, England 4 Max-Planck-Institut f¨ur extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany ii Document Information Document: The ISO Handbook Volume: I Title: ISO - Mission & Satellite Overview Reference Number: SAI/2000-035/Dc Issue: Version 2.0 Issue Date: November 2003 Authors: M.F. Kessler, T. M¨uller, K. Leech et al. Editors: T. M¨uller, J. Blommaert & P. Garc´ıa-Lario Web-Editor: J. Matagne Document History The ISO Handbook, Volume I: ISO – Mission & Satellite Overview is mainly based on the following documents: • The ISO Handbook, Volume I: ISO – Mission Overview, Kessler M.F., M¨uller T.G., Arviset C. et al., earlier versions, SAI-2000-035/Dc. • The ISO Handbook, Volume II: ISO – The Satellite and its Data, K. Leech & A.M.T. Pollock, earlier versions, SAI-99-082/Dc. • The following ESA Bulletin articles: The ISO Mission – A Scientific Overview, M.F. Kessler, A. -
Search for Very High-Energy Gamma-Ray Emission from Pulsar-Pwn Systems with the Magic Telescope
SUBMITTED TO THE ASTROPHYSICAL JOURNAL ON JUNE XX,2008 Preprint typeset using LATEX style emulateapj v. 10/09/06 SEARCH FOR VERY HIGH-ENERGY GAMMA-RAY EMISSION FROM PULSAR-PWN SYSTEMS WITH THE MAGIC TELESCOPE. 1 2 3 4 5 3 3 6 H. ANDERHUB ,L.A.ANTONELLI , P. ANTORANZ ,M.BACKES ,C.BAIXERAS ,S.BALESTRA ,J.A.BARRIO ,D.BASTIERI , 7 4 8 8 9 1 10 6 J. BECERRA GONZALEZ´ ,J.K.BECKER , W. BEDNAREK ,K.BERGER ,E.BERNARDINI ,A.BILAND ,R.K.BOCK , , 11 12 10 12 3 1 13 10 G. BONNOLI , P. BORDAS ,D.BORLA TRIDON , V. BOSCH-RAMON ,D.BOSE ,I.BRAUN , T.BRETZ ,D.BRITZGER , 3 10 2 10 1 3 14 7 15 M. CAMARA ,E.CARMONA ,A.CAROSI , P. COLIN ,S.COMMICHAU ,J.L.CONTRERAS ,J.CORTINA ,M.T.COSTADO , , 2 16 26 16 17 3 29 16 16 S. COVINO , F.DAZZI , ,A.DE ANGELIS , E. DE CEA DEL POZO ,R.DE LOS REYES , ,B.DE LOTTO ,M.DE MARIA , 16 7 27 18 19 1 6 13 F. DE SABATA ,C.DELGADO MENDEZ , ,A.DOM´INGUEZ ,D.DOMINIS PRESTER ,D.DORNER ,M.DORO ,D.ELSAESSER , 14 20 14 14 3 5 10 7 15 M. ERRANDO ,D.FERENC ,E.FERNANDEZ´ ,R.FIRPO ,M. V.FONSECA ,L.FONT ,N.GALANTE ,R.J.GARC´IA LOPEZ´ , , 14 7 19 10 28 5 7 15 1 M. GARCZARCZYK ,M.GAUG ,N.GODINOVIC , F.GOEBEL , ,D.HADASCH ,A.HERRERO , ,D.HILDEBRAND , 13 10 19 10 10 14 1 2 D. HOHNE¨ -MONCH¨ ,J.HOSE ,D.HRUPEC ,C.C.HSU , T. -
The Very High Energy Characteristics of Shell-Type Snrs and Pulsar Wind Nebulae at Different Ages
Journal of Physics: Conference Series PAPER • OPEN ACCESS Related content - Non-Thermal Photon Emission from Shell- The very high energy characteristics of shell-type Type Supernova Remnants Dou Ya-Nan and Zhang Li SNRs and Pulsar Wind Nebulae at different ages - Waveguide CO2 laser with a power per unit length of about 1 W/cm W J Witteman, M Ilieva, B I Ilyukhin et al. To cite this article: V G Sinitsyna et al 2016 J. Phys.: Conf. Ser. 718 052045 - Pulse-periodic YAG laser system with phase conjugation I Yu Anikeev, A A Gordeev, I G Zubarev et al. View the article online for updates and enhancements. This content was downloaded from IP address 131.169.5.251 on 08/02/2019 at 23:15 XIV International Conference on Topics in Astroparticle and Underground Physics (TAUP 2015) IOP Publishing Journal of Physics: Conference Series 718 (2016) 052045 doi:10.1088/1742-6596/718/5/052045 The very high energy characteristics of shell-type SNRs and Pulsar Wind Nebulae at different ages V G Sinitsyna, A Y Alaverdyan, M S Andreeva, K A Balygin, S S Borisov, I A Ivanov, A M Kirichenko, A I Klimov, I P Kozhukhova, R M Mirzafatikhov, N I Moseiko, S I Nikolsky, I E Ostashev, A I Palamarchuk,V Y Sinitsyna, I G Volokh P.N. Lebedev Physical Institute, Leninsky pr. 53, Moscow, Russia E-mail: [email protected] Abstract. The investigation of VHE gamma-ray sources by any methods, including mirror Cherenkov telescopes, touches on the problem of the cosmic ray origin and, accordingly, the role of the Galaxy in their generation. -
Science with the Square Kilometer Array
Science with the Square Kilometer Array edited by: A.R. Taylor and R. Braun March 1999 Cover image: The Hubble Deep Field Courtesy of R. Williams and the HDF Team (ST ScI) and NASA. Contents Executive Summary 6 1 Introduction 10 1.1 ANextGenerationRadioObservatory . 10 1.2 The Square Kilometre Array Concept . 12 1.3 Instrumental Sensitivity . 15 1.4 Contributors................................ 18 2 Formation and Evolution of Galaxies 20 2.1 TheDawnofGalaxies .......................... 20 2.1.1 21-cm Emission and Absorption Mechanisms . 22 2.1.2 PreheatingtheIGM ....................... 24 2.1.3 Scenarios: SKA Imaging of Cosmological H I .......... 25 2.2 LargeScale Structure and GalaxyEvolution . ... 28 2.2.1 A Deep SKA H I Pencil Beam Survey . 29 2.2.2 Large scale structure studies from a shallow, wide area survey 31 2.2.3 The Lyα forest seen in the 21-cm H I line............ 32 2.2.4 HighRedshiftCO......................... 33 2.3 DeepContinuumFields. .. .. 38 2.3.1 ExtragalacticRadioSources . 38 2.3.2 The SubmicroJansky Sky . 40 2.4 Probing Dark Matter with Gravitational Lensing . .... 42 2.5 ActivityinGalacticNuclei . 46 2.5.1 The SKA and Active Galactic Nuclei . 47 2.5.2 Sensitivity of the SKA in VLBI Arrays . 52 2.6 Circum-nuclearMegaMasers . 53 2.6.1 H2Omegamasers ......................... 54 2.6.2 OHMegamasers.......................... 55 2.6.3 FormaldehydeMegamasers. 55 2.6.4 The Impact of the SKA on Megamaser Studies . 56 2.7 TheStarburstPhenomenon . 57 2.7.1 TheimportanceofStarbursts . 58 2.7.2 CurrentRadioStudies . 58 2.7.3 The Potential of SKA for Starburst Studies . 61 3 4 CONTENTS 2.8 InterstellarProcesses . -
Polcaro Martocchia Were the 185 A.D. and 369 A.D. “Guest Stars” Seen in Rome?
IV. ASTRONOMICAL AND COSMOLOGICAL KNOWLEDGE IN HISTORICAL SOURCES AND LITERATURE Were the 185 A.D. “Guest Stars” 369 A.D. and Seen in Rome? WERE THE 185 A.D. AND 369 A.D. “GUEST STARS” SEEN IN ROME? NDREA NDREA VITO FRANCESCO VITO POLCARO, A MARTOCCHIA VITO FRANCESCO POLCARO, ANDREA MARTOCCHIA Abstract Since Clark and Stephenson (1977) proposed that the supernova remnant (SNR) G315.4-2.3 should be identified with the historical supernova (SN) seen by Chinese observers in the year A.D. 185, a great deal of work has been done by theoreticians and observers to test the hypothesis. Some authors have proposed the SNR G320.4-1.2 as a better candidate, while, on the basis of a reinterpretation of the Houhan-shu original text, even the very nature of the A.D. 185 event has been questioned, leading to the hypotheses of a cometary transit (Chin and Huang 1994) or a combination of Comet P/Swift-Tuttle and a nova (Schaefer 1995, 1996). In fact, a cometary transit was apparently registered in one of the Priscilla Catacomb frescoes, an ancient Roman artwork dating from the end of the second century. During our examinations of Roman Catacomb frescoes in an attempt to discover representations of “guest star” apparitions in Imperial Rome, we also discovered what seems to be a record of SN 369, indicating that this may have been the explosion which originated Cas A. Key words: historical supernovae, SN185, SN369, Cas A, catacombs, Paleo-Christian Art. The 185 A.D. “Guest Star” Galactic equator (Stephenson and Green 2002; Xu et al. -
Arxiv:1808.02136V2 [Astro-Ph.CO]
Correlations in the matter distribution in CLASH galaxy clusters Antonino Del Popoloa,b, Morgan Le Delliouc,d,∗, Xiguo Leee,1 aDipartimento di Fisica e Astronomia, University Of Catania, Viale Andrea Doria 6, 95125 Catania, Italy bINFN sezione di Catania, Via S. Sofia 64, I-95123 Catania, Italy cInstitute of Theoretical Physics, School of Physical Science and Technology, Lanzhou University, No.222, South Tianshui Road, Lanzhou, Gansu, 730000, Peoples Republic of China dInstituto de Astrof´sica e Ciˆencias do Espa¸co, Universidade de Lisboa, Faculdade de Ciencias, Ed. C8, Campo Grande, 1769-016 Lisboa, Portugal eInstitute of Modern Physics, Chinese Academy of Sciences, Post Office Box31, Lanzhou 730000, Peoples Republic of China Abstract We study the total and dark matter (DM) density profiles as well as their correlations for a sample of 15 high-mass galaxy clusters by extending our pre- vious work on several clusters from Newman et al. Our analysis focuses on 15 CLASH X-ray-selected clusters that have high-quality weak- and strong-lensing measurements from combined Subaru and Hubble Space Telescope observations. The total density profiles derived from lensing are interpreted based on the two- phase scenario of cluster formation. In this context, the brightest cluster galaxy (BCG) forms in the first dissipative phase, followed by a dissipationless phase where baryonic physics flattens the inner DM distribution. This results in the formation of clusters with modified DM distribution and several correlations between characteristic quantities of the clusters. We find that the central DM arXiv:1808.02136v2 [astro-ph.CO] 17 Jul 2019 density profiles of the clusters are strongly influenced by baryonic physics as found in our earlier work.