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Astronomie in Theorie Und Praxis 8. Auflage in Zwei Bänden Erik Wischnewski
Astronomie in Theorie und Praxis 8. Auflage in zwei Bänden Erik Wischnewski Inhaltsverzeichnis 1 Beobachtungen mit bloßem Auge 37 Motivation 37 Hilfsmittel 38 Drehbare Sternkarte Bücher und Atlanten Kataloge Planetariumssoftware Elektronischer Almanach Sternkarten 39 2 Atmosphäre der Erde 49 Aufbau 49 Atmosphärische Fenster 51 Warum der Himmel blau ist? 52 Extinktion 52 Extinktionsgleichung Photometrie Refraktion 55 Szintillationsrauschen 56 Angaben zur Beobachtung 57 Durchsicht Himmelshelligkeit Luftunruhe Beispiel einer Notiz Taupunkt 59 Solar-terrestrische Beziehungen 60 Klassifizierung der Flares Korrelation zur Fleckenrelativzahl Luftleuchten 62 Polarlichter 63 Nachtleuchtende Wolken 64 Haloerscheinungen 67 Formen Häufigkeit Beobachtung Photographie Grüner Strahl 69 Zodiakallicht 71 Dämmerung 72 Definition Purpurlicht Gegendämmerung Venusgürtel Erdschattenbogen 3 Optische Teleskope 75 Fernrohrtypen 76 Refraktoren Reflektoren Fokus Optische Fehler 82 Farbfehler Kugelgestaltsfehler Bildfeldwölbung Koma Astigmatismus Verzeichnung Bildverzerrungen Helligkeitsinhomogenität Objektive 86 Linsenobjektive Spiegelobjektive Vergütung Optische Qualitätsprüfung RC-Wert RGB-Chromasietest Okulare 97 Zusatzoptiken 100 Barlow-Linse Shapley-Linse Flattener Spezialokulare Spektroskopie Herschel-Prisma Fabry-Pérot-Interferometer Vergrößerung 103 Welche Vergrößerung ist die Beste? Blickfeld 105 Lichtstärke 106 Kontrast Dämmerungszahl Auflösungsvermögen 108 Strehl-Zahl Luftunruhe (Seeing) 112 Tubusseeing Kuppelseeing Gebäudeseeing Montierungen 113 Nachführfehler -
Spectral Analysis of the Hybrid PG 1159-Type Central Stars of the Planetary Nebulae Abell 43 and NGC 7094
MNRAS 489, 1054–1071 (2019) doi:10.1093/mnras/stz1994 Advance Access publication 2019 July 25 Spectral analysis of the hybrid PG 1159-type central stars of the planetary nebulae Abell 43 and NGC 7094 L. Lobling¨ ,1‹ T. Rauch ,1 M. M. Miller Bertolami,2,3 H. Todt,4 F. Friederich,1 M. Ziegler,1 K. Werner 1 andJ.W.Kruk5 Downloaded from https://academic.oup.com/mnras/article-abstract/489/1/1054/5538811 by Macquarie University user on 29 August 2019 1Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, D-72076 Tubingen,¨ Germany 2Instituto de Astrof´ısica La Plata, CONICET-UNLP, Paseo del Bosque s/n, (B1900FWA) La Plata, Argentina 3Facultad de Ciencias Astronomicas´ y Geof´ısicas, UNLP, Paseo del Bosque s/n, (B1900FWA) La Plata, Argentina 4Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str. 24/25, D-14476 Potsdam, Germany 5NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA Accepted 2019 July 16. Received 2019 June 18; in original form 2019 April 30 ABSTRACT Stellar post asymptotic giant branch (post-AGB) evolution can be completely altered by a final thermal pulse (FTP) which may occur when the star is still leaving the AGB (AFTP), at the departure from the AGB at still constant luminosity (late TP, LTP) or after the entry to the white-dwarf cooling sequence (very late TP, VLTP). Then convection mixes the He- rich material with the H-rich envelope. According to stellar evolution models the result is a star with a surface composition of H ≈ 20 per cent by mass (AFTP), ≈ 1 per cent (LTP), or (almost) no H (VLTP). -
INVESTIGATING ACTIVE GALACTIC NUCLEI with LOW FREQUENCY RADIO OBSERVATIONS By
INVESTIGATING ACTIVE GALACTIC NUCLEI WITH LOW FREQUENCY RADIO OBSERVATIONS by MATTHEW LAZELL A thesis submitted to The University of Birmingham for the degree of DOCTOR OF PHILOSOPHY School of Physics & Astronomy College of Engineering and Physical Sciences The University of Birmingham March 2015 University of Birmingham Research Archive e-theses repository This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. Abstract Low frequency radio astronomy allows us to look at some of the fainter and older synchrotron emission from the relativistic plasma associated with active galactic nuclei in galaxies and clusters. In this thesis, we use the Giant Metrewave Radio Telescope to explore the impact that active galactic nuclei have on their surroundings. We present deep, high quality, 150–610 MHz radio observations for a sample of fifteen predominantly cool-core galaxy clusters. We in- vestigate a selection of these in detail, uncovering interesting radio features and using our multi-frequency data to derive various radio properties. For well-known clusters such as MS0735, our low noise images enable us to see in improved detail the radio lobes working against the intracluster medium, whilst deriving the energies and timescales of this event. -
Desert Skies Since 1954 Spring 2015 Volume LXI, Issue 1
Tucson Amateur Astronomy Association Observing our Desert Skies since 1954 Spring 2015 Volume LXI, Issue 1 Inside this issue: The Tadpoles in IC410 President’s 2 Letter Outreach 3, 5 New RideShare 7 Program Observing & 8 - 11 Imaging Featured 12, 14 Articles Classifieds 7 Sponsors 7 Contacts 15 Take Note! Science Fair and Book Festival Reports TAAA member Howard Bower photographed IC 410 which is found in Auriga TAAA RideShare Program using a Telescope Engineering Company TEC 140 ED apochromat refractor with Announced a field flattener resulting in f/7.4. This is a narrow band image with 34 exposures in Hydrogen Alpha (30 minutes each), 34 exposures in Oxygen III (binned 2x2 at Jupiter Opposition 2015 15 minutes each), and 34 exposures in Sulphur II (binned 2x2 at 15 minutes each). Report IC410 is a faint emission nebula surrounding the star cluster NGC 1893. At the Constellation of the top left of the nebula are two objects known as “The Tadpoles”. These are likely Season—Centaurus areas of stellar formation. Each tadpole is about 10 light years long. This object is at a distance of about 12,000 light years. © 2013 Howard Bower. Used by New Items in the Classifieds permission. Desert Skies Page 2 Volume LXI, Issue 1 From Our President As I reviewed the March Bulletin it was really heartwarming to see all of the activities in which we are involved. It takes a lot of Our mission is to provide opportunities for members dedication and hard work to put this all together and make it and the public to share the joy and excitement of work.. -
Astronomy Magazine Special Issue
γ ι ζ γ δ α κ β κ ε γ β ρ ε ζ υ α φ ψ ω χ α π χ φ γ ω ο ι δ κ α ξ υ λ τ μ β α σ θ ε β σ δ γ ψ λ ω σ η ν θ Aι must-have for all stargazers η δ μ NEW EDITION! ζ λ β ε η κ NGC 6664 NGC 6539 ε τ μ NGC 6712 α υ δ ζ M26 ν NGC 6649 ψ Struve 2325 ζ ξ ATLAS χ α NGC 6604 ξ ο ν ν SCUTUM M16 of the γ SERP β NGC 6605 γ V450 ξ η υ η NGC 6645 M17 φ θ M18 ζ ρ ρ1 π Barnard 92 ο χ σ M25 M24 STARS M23 ν β κ All-in-one introduction ALL NEW MAPS WITH: to the night sky 42,000 more stars (87,000 plotted down to magnitude 8.5) AND 150+ more deep-sky objects (more than 1,200 total) The Eagle Nebula (M16) combines a dark nebula and a star cluster. In 100+ this intense region of star formation, “pillars” form at the boundaries spectacular between hot and cold gas. You’ll find this object on Map 14, a celestial portion of which lies above. photos PLUS: How to observe star clusters, nebulae, and galaxies AS2-CV0610.indd 1 6/10/10 4:17 PM NEW EDITION! AtlAs Tour the night sky of the The staff of Astronomy magazine decided to This atlas presents produce its first star atlas in 2006. -
Martin A. Guerrero Roncel Generated From: Editor CVN De FECYT Date of Document: 27/04/2019 V 1.4.0 Efb743b564d783564de108b1a8c5de25
Martin A. Guerrero Roncel Generated from: Editor CVN de FECYT Date of document: 27/04/2019 v 1.4.0 efb743b564d783564de108b1a8c5de25 This electronic file (PDF) has embedded CVN technology (CVN-XML). The CVN technology of this file allows you to export and import curricular data from and to any compatible data base. List of adapted databases available at: http://cvn.fecyt.es/ efb743b564d783564de108b1a8c5de25 Summary of CV This section describes briefly a summary of your career in science, academic and research; the main scientific and technological achievements and goals in your line of research in the medium -and long- term. It also includes other important aspects or peculiarities. Basic research in Astronomy and Astrophysics on the following topics: a) Formation and evolution of planetary nebulae. b) Interaction of evolved star stellar winds with circumstellar medium. c) Multi-wavelength study of interstellar bubbles. I got my PhD in 1995 on the spatially-resolved study of the chemical abundances of planetary nebulae (Univ. La Laguna, Instituto de Astrofísica de Canarias IAC, Tenerife, Spain). Then I was hired by the IAC as a member of the Support Astronomer group at Observatorio de El Roque de los Muchachos (ORM, La Palma, Spain). In 1999 I moved to the University of Illinois at Urbana-Champaign (USA) where I stayed until 2003, when I moved to the Instituto de Astrofísica de Andalucía (IAA) of the Spanish Consejo Superior de Investigaciones Científicas (CSIC) with a Ramón y Cajal tenure-track position. This tenure-track position moved into a permanent position (Científico Titular) in July 2006, being promoted into the next level (Investigador Científico) in March 2010. -
A Basic Requirement for Studying the Heavens Is Determining Where In
Abasic requirement for studying the heavens is determining where in the sky things are. To specify sky positions, astronomers have developed several coordinate systems. Each uses a coordinate grid projected on to the celestial sphere, in analogy to the geographic coordinate system used on the surface of the Earth. The coordinate systems differ only in their choice of the fundamental plane, which divides the sky into two equal hemispheres along a great circle (the fundamental plane of the geographic system is the Earth's equator) . Each coordinate system is named for its choice of fundamental plane. The equatorial coordinate system is probably the most widely used celestial coordinate system. It is also the one most closely related to the geographic coordinate system, because they use the same fun damental plane and the same poles. The projection of the Earth's equator onto the celestial sphere is called the celestial equator. Similarly, projecting the geographic poles on to the celest ial sphere defines the north and south celestial poles. However, there is an important difference between the equatorial and geographic coordinate systems: the geographic system is fixed to the Earth; it rotates as the Earth does . The equatorial system is fixed to the stars, so it appears to rotate across the sky with the stars, but of course it's really the Earth rotating under the fixed sky. The latitudinal (latitude-like) angle of the equatorial system is called declination (Dec for short) . It measures the angle of an object above or below the celestial equator. The longitud inal angle is called the right ascension (RA for short). -
10. Scientific Programme 10.1
10. SCIENTIFIC PROGRAMME 10.1. OVERVIEW (a) Invited Discourses Plenary Hall B 18:00-19:30 ID1 “The Zoo of Galaxies” Karen Masters, University of Portsmouth, UK Monday, 20 August ID2 “Supernovae, the Accelerating Cosmos, and Dark Energy” Brian Schmidt, ANU, Australia Wednesday, 22 August ID3 “The Herschel View of Star Formation” Philippe André, CEA Saclay, France Wednesday, 29 August ID4 “Past, Present and Future of Chinese Astronomy” Cheng Fang, Nanjing University, China Nanjing Thursday, 30 August (b) Plenary Symposium Review Talks Plenary Hall B (B) 8:30-10:00 Or Rooms 309A+B (3) IAUS 288 Astrophysics from Antarctica John Storey (3) Mon. 20 IAUS 289 The Cosmic Distance Scale: Past, Present and Future Wendy Freedman (3) Mon. 27 IAUS 290 Probing General Relativity using Accreting Black Holes Andy Fabian (B) Wed. 22 IAUS 291 Pulsars are Cool – seriously Scott Ransom (3) Thu. 23 Magnetars: neutron stars with magnetic storms Nanda Rea (3) Thu. 23 Probing Gravitation with Pulsars Michael Kremer (3) Thu. 23 IAUS 292 From Gas to Stars over Cosmic Time Mordacai-Mark Mac Low (B) Tue. 21 IAUS 293 The Kepler Mission: NASA’s ExoEarth Census Natalie Batalha (3) Tue. 28 IAUS 294 The Origin and Evolution of Cosmic Magnetism Bryan Gaensler (B) Wed. 29 IAUS 295 Black Holes in Galaxies John Kormendy (B) Thu. 30 (c) Symposia - Week 1 IAUS 288 Astrophysics from Antartica IAUS 290 Accretion on all scales IAUS 291 Neutron Stars and Pulsars IAUS 292 Molecular gas, Dust, and Star Formation in Galaxies (d) Symposia –Week 2 IAUS 289 Advancing the Physics of Cosmic -
The Applicability of Far-Infrared Fine-Structure Lines As Star Formation
A&A 568, A62 (2014) Astronomy DOI: 10.1051/0004-6361/201322489 & c ESO 2014 Astrophysics The applicability of far-infrared fine-structure lines as star formation rate tracers over wide ranges of metallicities and galaxy types? Ilse De Looze1, Diane Cormier2, Vianney Lebouteiller3, Suzanne Madden3, Maarten Baes1, George J. Bendo4, Médéric Boquien5, Alessandro Boselli6, David L. Clements7, Luca Cortese8;9, Asantha Cooray10;11, Maud Galametz8, Frédéric Galliano3, Javier Graciá-Carpio12, Kate Isaak13, Oskar Ł. Karczewski14, Tara J. Parkin15, Eric W. Pellegrini16, Aurélie Rémy-Ruyer3, Luigi Spinoglio17, Matthew W. L. Smith18, and Eckhard Sturm12 1 Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, 9000 Gent, Belgium e-mail: [email protected] 2 Zentrum für Astronomie der Universität Heidelberg, Institut für Theoretische Astrophysik, Albert-Ueberle Str. 2, 69120 Heidelberg, Germany 3 Laboratoire AIM, CEA, Université Paris VII, IRFU/Service d0Astrophysique, Bat. 709, 91191 Gif-sur-Yvette, France 4 UK ALMA Regional Centre Node, Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK 5 Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK 6 Laboratoire d0Astrophysique de Marseille − LAM, Université Aix-Marseille & CNRS, UMR7326, 38 rue F. Joliot-Curie, 13388 Marseille CEDEX 13, France 7 Astrophysics Group, Imperial College, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UK 8 European Southern Observatory, Karl -
WALLABY Pre-Pilot Survey: Two Dark Clouds in the Vicinity of NGC 1395
University of Texas Rio Grande Valley ScholarWorks @ UTRGV Physics and Astronomy Faculty Publications and Presentations College of Sciences 2021 WALLABY pre-pilot survey: Two dark clouds in the vicinity of NGC 1395 O. I. Wong University of Western Australia A. R. H. Stevens B. Q. For University of Western Australia Tobias Westmeier M. Dixon See next page for additional authors Follow this and additional works at: https://scholarworks.utrgv.edu/pa_fac Part of the Astrophysics and Astronomy Commons, and the Physics Commons Recommended Citation O I Wong, A R H Stevens, B-Q For, T Westmeier, M Dixon, S-H Oh, G I G Józsa, T N Reynolds, K Lee-Waddell, J Román, L Verdes-Montenegro, H M Courtois, D Pomarède, C Murugeshan, M T Whiting, K Bekki, F Bigiel, A Bosma, B Catinella, H Dénes, A Elagali, B W Holwerda, P Kamphuis, V A Kilborn, D Kleiner, B S Koribalski, F Lelli, J P Madrid, K B W McQuinn, A Popping, J Rhee, S Roychowdhury, T C Scott, C Sengupta, K Spekkens, L Staveley-Smith, B P Wakker, WALLABY pre-pilot survey: Two dark clouds in the vicinity of NGC 1395, Monthly Notices of the Royal Astronomical Society, 2021;, stab2262, https://doi.org/10.1093/ mnras/stab2262 This Article is brought to you for free and open access by the College of Sciences at ScholarWorks @ UTRGV. It has been accepted for inclusion in Physics and Astronomy Faculty Publications and Presentations by an authorized administrator of ScholarWorks @ UTRGV. For more information, please contact [email protected], [email protected]. -
New Type of Black Hole Detected in Massive Collision That Sent Gravitational Waves with a 'Bang'
New type of black hole detected in massive collision that sent gravitational waves with a 'bang' By Ashley Strickland, CNN Updated 1200 GMT (2000 HKT) September 2, 2020 <img alt="Galaxy NGC 4485 collided with its larger galactic neighbor NGC 4490 millions of years ago, leading to the creation of new stars seen in the right side of the image." class="media__image" src="//cdn.cnn.com/cnnnext/dam/assets/190516104725-ngc-4485-nasa-super-169.jpg"> Photos: Wonders of the universe Galaxy NGC 4485 collided with its larger galactic neighbor NGC 4490 millions of years ago, leading to the creation of new stars seen in the right side of the image. Hide Caption 98 of 195 <img alt="Astronomers developed a mosaic of the distant universe, called the Hubble Legacy Field, that documents 16 years of observations from the Hubble Space Telescope. The image contains 200,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the Big Bang. " class="media__image" src="//cdn.cnn.com/cnnnext/dam/assets/190502151952-0502-wonders-of-the-universe-super-169.jpg"> Photos: Wonders of the universe Astronomers developed a mosaic of the distant universe, called the Hubble Legacy Field, that documents 16 years of observations from the Hubble Space Telescope. The image contains 200,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the Big Bang. Hide Caption 99 of 195 <img alt="A ground-based telescope&amp;#39;s view of the Large Magellanic Cloud, a neighboring galaxy of our Milky Way. -
Catalogue of Excitation Classes P for 750 Galactic Planetary Nebulae
Catalogue of Excitation Classes p for 750 Galactic Planetary Nebulae Name p Name p Name p Name p NeC 40 1 Nee 6072 9 NeC 6881 10 IC 4663 11 NeC 246 12+ Nee 6153 3 NeC 6884 7 IC 4673 10 NeC 650-1 10 Nee 6210 4 NeC 6886 9 IC 4699 9 NeC 1360 12 Nee 6302 10 Nee 6891 4 IC 4732 5 NeC 1501 10 Nee 6309 10 NeC 6894 10 IC 4776 2 NeC 1514 8 NeC 6326 9 Nee 6905 11 IC 4846 3 NeC 1535 8 Nee 6337 11 Nee 7008 11 IC 4997 8 NeC 2022 12 Nee 6369 4 NeC 7009 7 IC 5117 6 NeC 2242 12+ NeC 6439 8 NeC 7026 9 IC 5148-50 6 NeC 2346 9 NeC 6445 10 Nee 7027 11 IC 5217 6 NeC 2371-2 12 Nee 6537 11 Nee 7048 11 Al 1 NeC 2392 10 NeC 6543 5 Nee 7094 12 A2 10 NeC 2438 10 NeC 6563 8 NeC 7139 9 A4 10 NeC 2440 10 NeC 6565 7 NeC 7293 7 A 12 4 NeC 2452 10 NeC 6567 4 Nee 7354 10 A 15 12+ NeC 2610 12 NeC 6572 7 NeC 7662 10 A 20 12+ NeC 2792 11 NeC 6578 2 Ie 289 12 A 21 1 NeC 2818 11 NeC 6620 8 IC 351 10 A 23 4 NeC 2867 9 NeC 6629 5 Ie 418 1 A 24 1 NeC 2899 10 Nee 6644 7 IC 972 10 A 30 12+ NeC 3132 9 NeC 6720 10 IC 1295 10 A 33 11 NeC 3195 9 NeC 6741 9 IC 1297 9 A 35 1 NeC 3211 10 NeC 6751 9 Ie 1454 10 A 36 12+ NeC 3242 9 Nee 6765 10 IC1747 9 A 40 2 NeC 3587 8 NeC 6772 9 IC 2003 10 A 41 1 NeC 3699 9 NeC 6778 9 IC 2149 2 A 43 2 NeC 3918 9 NeC 6781 8 IC 2165 10 A 46 2 NeC 4071 11 NeC 6790 4 IC 2448 9 A 49 4 NeC 4361 12+ NeC 6803 5 IC 2501 3 A 50 10 NeC 5189 10 NeC 6804 12 IC 2553 8 A 51 12 NeC 5307 9 NeC 6807 4 IC 2621 9 A 54 12 NeC 5315 2 NeC 6818 10 Ie 3568 3 A 55 4 NeC 5873 10 NeC 6826 11 Ie 4191 6 A 57 3 NeC 5882 6 NeC 6833 2 Ie 4406 4 A 60 2 NeC 5879 12 NeC 6842 2 IC 4593 6 A