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Abhandlungen der Königlich Bayerischen Akademie der Wissenschaften Philosophisch - philologische und historische Klasse XXX. Band, 1. Abhandlung Antike Beobachtungen farbiger Sterne von Franz Boll Mit einem Beitrag von Carl Bezold , Vorgelegt am 1. Juli 1916 München 1916 Verlag der Königlich Bayerischen Akademie der Wissenschaften in Kommission des G. Franz'schen Verlags (J. Roth) ,. j / Einleitung. Die Geschichte der antiken Astronomie beruhte bis gegen den Ausgang des vorigen Jahrhunderts auf einer Anzahl von griechischen und einigen römischen Schriftstellern, unter denen Claudius Ptolemäus mit seiner "GroElen Syntaxis" als der letzten und um- fassendsten Kodifizierung des antiken Wissens vom Sternhimmel den ersten Platz einnimmt. Auf dem Almagest fuElten einst Delambre und fast drei Menschenalter später Tannery bei ihren Gesamtdarstellungen 1). Es ist klar, daEl mit diesen Quellen auch eine ganz bestimmte Auswahl und Abgrenzung des Stoffes notwendig gegeben war. Nur neues Material konnte aus diesem Bann herausführen. Das hat sich in den letzten zwei Jahrzehnten aus zwei verschiedenen Quellen unerwartet reich eingestellt. Die babylonischen 'rafein, so sporadisch sie immer noch geblieben sind, und so schwierig oft ihre Verwertung ist, geben gute Hoffnung, einmal zu einer von vorgefaElter Meinung nach beiden Seiten unabhängigen Vorstellung von den sachlichen Unterlagen des ionischen Weltbildes im 6. und 5. Jahr- hundert zu gelangen; und die Erforschung der griechischen astrologischen Handschriften, deren überwiegender Teil zum Glück vor -
Fy10 Budget by Program
AURA/NOAO FISCAL YEAR ANNUAL REPORT FY 2010 Revised Submitted to the National Science Foundation March 16, 2011 This image, aimed toward the southern celestial pole atop the CTIO Blanco 4-m telescope, shows the Large and Small Magellanic Clouds, the Milky Way (Carinae Region) and the Coal Sack (dark area, close to the Southern Crux). The 33 “written” on the Schmidt Telescope dome using a green laser pointer during the two-minute exposure commemorates the rescue effort of 33 miners trapped for 69 days almost 700 m underground in the San Jose mine in northern Chile. The image was taken while the rescue was in progress on 13 October 2010, at 3:30 am Chilean Daylight Saving time. Image Credit: Arturo Gomez/CTIO/NOAO/AURA/NSF National Optical Astronomy Observatory Fiscal Year Annual Report for FY 2010 Revised (October 1, 2009 – September 30, 2010) Submitted to the National Science Foundation Pursuant to Cooperative Support Agreement No. AST-0950945 March 16, 2011 Table of Contents MISSION SYNOPSIS ............................................................................................................ IV 1 EXECUTIVE SUMMARY ................................................................................................ 1 2 NOAO ACCOMPLISHMENTS ....................................................................................... 2 2.1 Achievements ..................................................................................................... 2 2.2 Status of Vision and Goals ................................................................................ -
Antike Beobachtungen Farbiger Sterne
Abhandlungen der Königlich Bayerischen Akademie der Wissenschaften Philosophisch - philologische und historische Klasse XXX. Band, 1. Abhandlung Antike Beobachtungen farbiger Sterne von Franz Boll Mit einem Beitrag von Carl Bezold , Vorgelegt am 1. Juli 1916 München 1916 Verlag der Königlich Bayerischen Akademie der Wissenschaften in Kommission des G. Franz'schen Verlags (J. Roth) ,. j / Einleitung. Die Geschichte der antiken Astronomie beruhte bis gegen den Ausgang des vorigen Jahrhunderts auf einer Anzahl von griechischen und einigen römischen Schriftstellern, unter denen Claudius Ptolemäus mit seiner "GroElen Syntaxis" als der letzten und um- fassendsten Kodifizierung des antiken Wissens vom Sternhimmel den ersten Platz einnimmt. Auf dem Almagest fuElten einst Delambre und fast drei Menschenalter später Tannery bei ihren Gesamtdarstellungen 1). Es ist klar, daEl mit diesen Quellen auch eine ganz bestimmte Auswahl und Abgrenzung des Stoffes notwendig gegeben war. Nur neues Material konnte aus diesem Bann herausführen. Das hat sich in den letzten zwei Jahrzehnten aus zwei verschiedenen Quellen unerwartet reich eingestellt. Die babylonischen 'rafein, so sporadisch sie immer noch geblieben sind, und so schwierig oft ihre Verwertung ist, geben gute Hoffnung, einmal zu einer von vorgefaElter Meinung nach beiden Seiten unabhängigen Vorstellung von den sachlichen Unterlagen des ionischen Weltbildes im 6. und 5. Jahr- hundert zu gelangen; und die Erforschung der griechischen astrologischen Handschriften, deren überwiegender Teil zum Glück vor -
The Dipole Anisotropy of the 2 Micron All-Sky Redshift Survey
Mon. Not. R. Astron. Soc. 368, 1515–1526 (2006) doi:10.1111/j.1365-2966.2006.10243.x The dipole anisotropy of the 2 Micron All-Sky Redshift Survey Downloaded from https://academic.oup.com/mnras/article-abstract/368/4/1515/1151639 by MIDDLE EAST TECHNICAL UNIVERSITY LIBRARY user on 24 July 2020 , P. Erdo˘gdu,1,2 J. P. Huchra,3 O. Lahav,2 4 M. Colless,5 R. M. Cutri,6 E. Falco,3 T. George,7 T. Jarrett,6 D. H. Jones,8 C. S. Kochanek,9 L. Macri,10 J. Mader,11 N. Martimbeau,3 M. Pahre,3 Q. Parker,12 A. Rassat4 and W. Saunders5,13 1Department of Physics, Middle East Technical University, 06531 Ankara, Turkey 2School of Physics & Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD 3Harvard-Smithsonian Center of Astrophysics, 60 Garden Street, MS-20, Cambridge, MA 02138, USA 4Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT 5Anglo-Australian Observatory, PO Box 296, Epping, NSW 2052, Australia 6Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA 7California Institute of Technology, 4800 Oak Grove Drive, 302-231, Pasadena, CA 91109, USA 8Research School of Astronomy and Astrophysics, Mount Stromlo, and Siding Spring Observatories, Cotter Road, Weston Creek, ACT 2611, Australia 9Department of Astronomy, Ohio State University, 4055 McPherson Lab, 140 West 18th Avenue, Columbus, OH 43221, USA 10National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85726, USA 11W.M. Keck Observatory, Kamuela, HI 96743, USA 12Department of Physics, Macquarie University, Sydney, NWS 2109, Australia 13Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ Accepted 2006 February 23. -
Draft181 182Chapter 10
Chapter 10 Formation and evolution of the Local Group 480 Myr <t< 13.7 Gyr; 10 >z> 0; 30 K > T > 2.725 K The fact that the [G]alactic system is a member of a group is a very fortunate accident. Edwin Hubble, The Realm of the Nebulae Summary: The Local Group (LG) is the group of galaxies gravitationally associ- ated with the Galaxy and M 31. Galaxies within the LG have overcome the general expansion of the universe. There are approximately 75 galaxies in the LG within a 12 diameter of ∼3 Mpc having a total mass of 2-5 × 10 M⊙. A strong morphology- density relation exists in which gas-poor dwarf spheroidals (dSphs) are preferentially found closer to the Galaxy/M 31 than gas-rich dwarf irregulars (dIrrs). This is often promoted as evidence of environmental processes due to the massive Galaxy and M 31 driving the evolutionary change between dwarf galaxy types. High Veloc- ity Clouds (HVCs) are likely to be either remnant gas left over from the formation of the Galaxy, or associated with other galaxies that have been tidally disturbed by the Galaxy. Our Galaxy halo is about 12 Gyr old. A thin disk with ongoing star formation and older thick disk built by z ≥ 2 minor mergers exist. The Galaxy and M 31 will merge in 5.9 Gyr and ultimately resemble an elliptical galaxy. The LG has −1 vLG = 627 ± 22 km s with respect to the CMB. About 44% of the LG motion is due to the infall into the region of the Great Attractor, and the remaining amount of motion is due to more distant overdensities between 130 and 180 h−1 Mpc, primarily the Shapley supercluster. -
Pulsating Components in Binary and Multiple Stellar Systems---A
Research in Astron. & Astrophys. Vol.15 (2015) No.?, 000–000 (Last modified: — December 6, 2014; 10:26 ) Research in Astronomy and Astrophysics Pulsating Components in Binary and Multiple Stellar Systems — A Catalog of Oscillating Binaries ∗ A.-Y. Zhou National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China; [email protected] Abstract We present an up-to-date catalog of pulsating binaries, i.e. the binary and multiple stellar systems containing pulsating components, along with a statistics on them. Compared to the earlier compilation by Soydugan et al.(2006a) of 25 δ Scuti-type ‘oscillating Algol-type eclipsing binaries’ (oEA), the recent col- lection of 74 oEA by Liakos et al.(2012), and the collection of Cepheids in binaries by Szabados (2003a), the numbers and types of pulsating variables in binaries are now extended. The total numbers of pulsating binary/multiple stellar systems have increased to be 515 as of 2014 October 26, among which 262+ are oscillating eclipsing binaries and the oEA containing δ Scuti componentsare updated to be 96. The catalog is intended to be a collection of various pulsating binary stars across the Hertzsprung-Russell diagram. We reviewed the open questions, advances and prospects connecting pulsation/oscillation and binarity. The observational implication of binary systems with pulsating components, to stellar evolution theories is also addressed. In addition, we have searched the Simbad database for candidate pulsating binaries. As a result, 322 candidates were extracted. Furthermore, a brief statistics on Algol-type eclipsing binaries (EA) based on the existing catalogs is given. We got 5315 EA, of which there are 904 EA with spectral types A and F. -
Index to JRASC Volumes 61-90 (PDF)
THE ROYAL ASTRONOMICAL SOCIETY OF CANADA GENERAL INDEX to the JOURNAL 1967–1996 Volumes 61 to 90 inclusive (including the NATIONAL NEWSLETTER, NATIONAL NEWSLETTER/BULLETIN, and BULLETIN) Compiled by Beverly Miskolczi and David Turner* * Editor of the Journal 1994–2000 Layout and Production by David Lane Published by and Copyright 2002 by The Royal Astronomical Society of Canada 136 Dupont Street Toronto, Ontario, M5R 1V2 Canada www.rasc.ca — [email protected] Table of Contents Preface ....................................................................................2 Volume Number Reference ...................................................3 Subject Index Reference ........................................................4 Subject Index ..........................................................................7 Author Index ..................................................................... 121 Abstracts of Papers Presented at Annual Meetings of the National Committee for Canada of the I.A.U. (1967–1970) and Canadian Astronomical Society (1971–1996) .......................................................................168 Abstracts of Papers Presented at the Annual General Assembly of the Royal Astronomical Society of Canada (1969–1996) ...........................................................207 JRASC Index (1967-1996) Page 1 PREFACE The last cumulative Index to the Journal, published in 1971, was compiled by Ruth J. Northcott and assembled for publication by Helen Sawyer Hogg. It included all articles published in the Journal during the interval 1932–1966, Volumes 26–60. In the intervening years the Journal has undergone a variety of changes. In 1970 the National Newsletter was published along with the Journal, being bound with the regular pages of the Journal. In 1978 the National Newsletter was physically separated but still included with the Journal, and in 1989 it became simply the Newsletter/Bulletin and in 1991 the Bulletin. That continued until the eventual merger of the two publications into the new Journal in 1997. -
Galaxies Discovered Behind the Milky Way by the Dwingeloo Obscured Galaxies Survey P. A. Henning Institute for Astrophysics
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by CERN Document Server Galaxies Discovered Behind the Milky Way by the Dwingeloo Obscured Galaxies Survey P. A. Henning Institute for Astrophysics, University of New Mexico 800 Yale Blvd., NE, Albuquerque, NM 87131 R. C. Kraan-Korteweg Observatoire de Paris-Meudon, D.A.E.C. 92195 Meudon Cedex, France and Astronomy Department, University of Guanajuato Apartado Postal 144, Guanajuato, GTO 36000, Mexico A. J. Rivers Institute for Astrophysics, University of New Mexico 800 Yale Blvd., NE, Albuquerque, NM 87131 A. J. Loan Institute of Astronomy, University of Cambridge Madingley Road, Cambridge CB3 0HA, UK O. Lahav Institute of Astronomy, University of Cambridge Madingley Road, Cambridge CB3 0HA, UK and Anglo Australian Observatory P.O. Box 296, Epping, NSW 2121, Australia W. B. Burton Leiden Observatory Postbus 9513, NL-2300 RA Leiden, The Netherlands 1 Abstract Our Galaxy blocks a significant portion of the extragalactic sky from view, hampering studies of large-scale structure. This produces an incom- plete knowledge of the distribution of galaxies, and, assuming galaxies trace mass, of the gravity field. Further, just one unrecognized, nearby massive galaxy could have large influence over the Milky Way’s motion with respect to the Cosmic Microwave Background. Diligent surveys in the optical and infrared wavebands can find galaxies through moderate Galactic gas and dust, but close to the Galactic Plane, only radio surveys are effective. The entire northern Zone of Avoidance is being searched at 21 cm for galaxies using the Dwingeloo 25-m telescope. -
Basic Astronomy Labs
Astronomy Laboratory Exercise 31 The Magnitude Scale On a dark, clear night far from city lights, the unaided human eye can see on the order of five thousand stars. Some stars are bright, others are barely visible, and still others fall somewhere in between. A telescope reveals hundreds of thousands of stars that are too dim for the unaided eye to see. Most stars appear white to the unaided eye, whose cells for detecting color require more light. But the telescope reveals that stars come in a wide palette of colors. This lab explores the modern magnitude scale as a means of describing the brightness, the distance, and the color of a star. The earliest recorded brightness scale was developed by Hipparchus, a natural philosopher of the second century BCE. He ranked stars into six magnitudes according to brightness. The brightest stars were first magnitude, the second brightest stars were second magnitude, and so on until the dimmest stars he could see, which were sixth magnitude. Modern measurements show that the difference between first and sixth magnitude represents a brightness ratio of 100. That is, a first magnitude star is about 100 times brighter than a sixth magnitude star. Thus, each magnitude is 100115 (or about 2. 512) times brighter than the next larger, integral magnitude. Hipparchus' scale only allows integral magnitudes and does not allow for stars outside this range. With the invention of the telescope, it became obvious that a scale was needed to describe dimmer stars. Also, the scale should be able to describe brighter objects, such as some planets, the Moon, and the Sun. -
Astronomy 2009 Index
Astronomy Magazine 2009 Index Subject Index 1RXS J160929.1-210524 (star), 1:24 4C 60.07 (galaxy pair), 2:24 6dFGS (Six Degree Field Galaxy Survey), 8:18 21-centimeter (neutral hydrogen) tomography, 12:10 93 Minerva (asteroid), 12:18 2008 TC3 (asteroid), 1:24 2009 FH (asteroid), 7:19 A Abell 21 (Medusa Nebula), 3:70 Abell 1656 (Coma galaxy cluster), 3:8–9, 6:16 Allen Telescope Array (ATA) radio telescope, 12:10 ALMA (Atacama Large Millimeter/sub-millimeter Array), 4:21, 9:19 Alpha (α) Canis Majoris (Sirius) (star), 2:68, 10:77 Alpha (α) Orionis (star). See Betelgeuse (Alpha [α] Orionis) (star) Alpha Centauri (star), 2:78 amateur astronomy, 10:18, 11:48–53, 12:19, 56 Andromeda Galaxy (M31) merging with Milky Way, 3:51 midpoint between Milky Way Galaxy and, 1:62–63 ultraviolet images of, 12:22 Antarctic Neumayer Station III, 6:19 Anthe (moon of Saturn), 1:21 Aperture Spherical Telescope (FAST), 4:24 APEX (Atacama Pathfinder Experiment) radio telescope, 3:19 Apollo missions, 8:19 AR11005 (sunspot group), 11:79 Arches Cluster, 10:22 Ares launch system, 1:37, 3:19, 9:19 Ariane 5 rocket, 4:21 Arianespace SA, 4:21 Armstrong, Neil A., 2:20 Arp 147 (galaxy pair), 2:20 Arp 194 (galaxy group), 8:21 art, cosmology-inspired, 5:10 ASPERA (Astroparticle European Research Area), 1:26 asteroids. See also names of specific asteroids binary, 1:32–33 close approach to Earth, 6:22, 7:19 collision with Jupiter, 11:20 collisions with Earth, 1:24 composition of, 10:55 discovery of, 5:21 effect of environment on surface of, 8:22 measuring distant, 6:23 moons orbiting, -
1977Apj. . .217 . .903Y the Astrophysical Journal, 217
.903Y . .217 The Astrophysical Journal, 217:903-915, 1977 November 1 . © 1977. The American Astronomical Society. All rights reserved. Printed in U.S.A. 1977ApJ. THE LOCAL GROUP: THE SOLAR MOTION RELATIVE TO ITS CENTROID A. Yahil,* G. A. Tammann, and Allan Sandage Hale Observatories, Carnegie Institution of Washington, California Institute of Technology Received 1976 October 29; accepted 1977 April 29 ABSTRACT A new solution for the motion of the local standard of rest (LSR) relative to the centroid of the Local Group (LG) of galaxies, based on 21 cm redshifts for a number of candidates, gives i;(LSR) = 300 km s_1 toward / = 107°, b = —8°. Three other solutions are given using different precepts for membership within the LG. This motion of the LSR corresponds to a best-fit -1 o solar motion relative to the LG centroid of ^(0) = 308 km s toward / = 105°, b = —I . Consideration of the velocity residuals from the ridge-line solution of each candidate galaxy shows that the sometimes-mentioned galaxies IC 342, NGC 6946, NGC 404, and Maffei 1 and 2 are certainly not members. Likely members, on the basis of the kinematics alone, are IC 10, Pegasus dwarf, WLM, DDO 210, Leo A, and IC 5152. Possible, but unlikely, members, again based on kinematics alone, are DDO 187, GR 8, Sextans A and B, and NGC 3109. All five of these latter galaxies have positive residuals of about 125 km s-1 relative to the solution, and may be the nearest galaxies that show the cosmological expansion. A discussion of the error matrix is given, with special emphasis on breaking up the velocity v0 of the LSR relative to the centroid of the LG into the sum of a rotation velocity vc and the motion of the center of the Galaxy vG. -
Astronomiczny Obserwatorjum Krakowskiego
ROCZNIK ASTRONOMICZNY OBSERWATORJUM KRAKOWSKIEGO NA ROK 1923. WYDAWNICTWA TOM II. WYDANO Z ZASIŁKU WYDZIAŁU NAUKI MSNISTERSTWA W. R. I OŚWIECENIA PUBLICZNEGO. DRUKARNIA ZWIĄZKOWA. KRAKÓW 1923. DD POLACY! Platoniczny kult Kopernika — martwy jest; honor jego Ojczyzny wymaga wzniesienia N arodow ego Instytutu Astronomicznego. ROCZNIK ASTRONOMICZNY OBSERWATORJUM KRAKOWSKIEGO NA R O K 1923. WYDAWNICTWA TOM II. WYDANO Z ZASIŁKU WYDZIAŁU NAUKI MINISTERSTWA W. R. I OŚWIECENIA PUBLICZNEGO. DRUKARNIA ZWIĄZKOWA. KRAKÓW 1923. » * 4 L ( » s jjf;i ^*'"4 - ^ tb & \4 -w **•■*4- d!> XI J S X „Bok pomagay“ (według średniowiecznej chwiejnej pisowni polskiej, i zamiast obecnego »Boże pomagaj*; własnoręczny, dwu krotnie powtórzony napis M. K o p e rn ik a , odna le z io n y przez prof. Birkenmajera na marginesie karty październikowej roku 1505 książki »Calendarium raa- gistri Joannis de mon te region bibljoteki uniwersyteckiej w Upsali (sygnatura bibl. Inczmab. 840). W szystkie inne, w tej książce ręką Kopernika poczynione zapiski, są treści astronomicznej i po łacinie). PRZEDMOWA. Drugi rok swego istnienia zaczyna Rocznik Astronomiczny pod znakiem 450-tej rocznicy urodzin Mikołaja Kopernika, największego astronoma wszystkich czasów a nieśmiertelnej chluby narodu naszego. Oby rok ten stał się dla astronomji polskiej przełomowym i wypro wadził ją z obecnego poniżenia przez założenie choćby podwalin pod NARODOWY INSTYTUT ASTRONOMICZNY! Skromne prace nasze, podjęte celem urzeczywistnienia idei tego zakładu, opisane są w tym R oczniku i jeżeli wydawnictwo niniejsze chociażby w słabym stopniu przyczyni się do wzbudzenia wśród społeczeństwa przekonania, że astro- nomja polska na lepszą zasługuje oprawę, niż ta, w którą zawarły ją macosze rządy zaborców, będziemy sowicie wynagrodzeni za pracę. O celach Rocznika nie będziemy się tu rozpisywali, gdyż zostały one szczegółowo omówione w przedmowie do tomu I.