Research Annual Report
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
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 -
Annual Report 2016–2017 AAVSO
AAVSO The American Association of Variable Star Observers Annual Report 2016–2017 AAVSO Annual Report 2012 –2013 The American Association of Variable Star Observers AAVSO Annual Report 2016–2017 The American Association of Variable Star Observers 49 Bay State Road Cambridge, MA 02138-1203 USA Telephone: 617-354-0484 Fax: 617-354-0665 email: [email protected] website: https://www.aavso.org Annual Report Website: https://www.aavso.org/annual-report On the cover... At the 2017 AAVSO Annual Meeting.(clockwise from upper left) Knicole Colon, Koji Mukai, Dennis Conti, Kristine Larsen, Joey Rodriguez; Rachid El Hamri, Andy Block, Jane Glanzer, Erin Aadland, Jamin Welch, Stella Kafka; and (clockwise from upper left) Joey Rodriguez, Knicole Colon, Koji Mukai, Frans-Josef “Josch” Hambsch, Chandler Barnes. Picture credits In additon to images from the AAVSO and its archives, the editors gratefully acknowledge the following for their image contributions: Glenn Chaple, Shawn Dvorak, Mary Glennon, Bill Goff, Barbara Harris, Mario Motta, NASA, Gary Poyner, Msgr. Ronald Royer, the Mary Lea Shane Archives of the Lick Observatory, Chris Stephan, and Wheatley, et al. 2003, MNRAS, 345, 49. Table of Contents 1. About the AAVSO Vision and Mission Statement 1 About the AAVSO 1 What We Do 2 What Are Variable Stars? 3 Why Observe Variable Stars? 3 The AAVSO International Database 4 Observing Variable Stars 6 Services to Astronomy 7 Education and Outreach 9 2. The Year in Review Introduction 11 The 106th AAVSO Spring Membership Meeting, Ontario, California 11 The -
Pos(MULTIF2017)001
Multifrequency Astrophysics (A pillar of an interdisciplinary approach for the knowledge of the physics of our Universe) ∗† Franco Giovannelli PoS(MULTIF2017)001 INAF - Istituto di Astrofisica e Planetologia Spaziali, Via del Fosso del Cavaliere, 100, 00133 Roma, Italy E-mail: [email protected] Lola Sabau-Graziati INTA- Dpt. Cargas Utiles y Ciencias del Espacio, C/ra de Ajalvir, Km 4 - E28850 Torrejón de Ardoz, Madrid, Spain E-mail: [email protected] We will discuss the importance of the "Multifrequency Astrophysics" as a pillar of an interdis- ciplinary approach for the knowledge of the physics of our Universe. Indeed, as largely demon- strated in the last decades, only with the multifrequency observations of cosmic sources it is possible to get near the whole behaviour of a source and then to approach the physics governing the phenomena that originate such a behaviour. In spite of this, a multidisciplinary approach in the study of each kind of phenomenon occurring in each kind of cosmic source is even more pow- erful than a simple "astrophysical approach". A clear example of a multidisciplinary approach is that of "The Bridge between the Big Bang and Biology". This bridge can be described by using the competences of astrophysicists, planetary physicists, atmospheric physicists, geophysicists, volcanologists, biophysicists, biochemists, and astrobiophysicists. The unification of such com- petences can provide the intellectual framework that will better enable an understanding of the physics governing the formation and structure of cosmic objects, apparently uncorrelated with one another, that on the contrary constitute the steps necessary for life (e.g. Giovannelli, 2001). -
LIST of PUBLICATIONS Aryabhatta Research Institute of Observational Sciences ARIES (An Autonomous Scientific Research Institute
LIST OF PUBLICATIONS Aryabhatta Research Institute of Observational Sciences ARIES (An Autonomous Scientific Research Institute of Department of Science and Technology, Govt. of India) Manora Peak, Naini Tal - 263 129, India (1955−2020) ABBREVIATIONS AA: Astronomy and Astrophysics AASS: Astronomy and Astrophysics Supplement Series ACTA: Acta Astronomica AJ: Astronomical Journal ANG: Annals de Geophysique Ap. J.: Astrophysical Journal ASP: Astronomical Society of Pacific ASR: Advances in Space Research ASS: Astrophysics and Space Science AE: Atmospheric Environment ASL: Atmospheric Science Letters BA: Baltic Astronomy BAC: Bulletin Astronomical Institute of Czechoslovakia BASI: Bulletin of the Astronomical Society of India BIVS: Bulletin of the Indian Vacuum Society BNIS: Bulletin of National Institute of Sciences CJAA: Chinese Journal of Astronomy and Astrophysics CS: Current Science EPS: Earth Planets Space GRL : Geophysical Research Letters IAU: International Astronomical Union IBVS: Information Bulletin on Variable Stars IJHS: Indian Journal of History of Science IJPAP: Indian Journal of Pure and Applied Physics IJRSP: Indian Journal of Radio and Space Physics INSA: Indian National Science Academy JAA: Journal of Astrophysics and Astronomy JAMC: Journal of Applied Meterology and Climatology JATP: Journal of Atmospheric and Terrestrial Physics JBAA: Journal of British Astronomical Association JCAP: Journal of Cosmology and Astroparticle Physics JESS : Jr. of Earth System Science JGR : Journal of Geophysical Research JIGR: Journal of Indian -
The Study of Astronomical Transients in the Infrared
The Study of Astronomical Transients in the Infrared by Robert Strausbaugh A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved May 2019 by the Graduate Supervisory Committee: Nathaniel Butler, Chair Rolf Jansen Phillip Mauskopf Rogier Windhorst ARIZONA STATE UNIVERSITY August 2019 ©2019 Robert Strausbaugh All Rights Reserved ABSTRACT Several key, open questions in astrophysics can be tackled by searching for and mining large datasets for transient phenomena. The evolution of massive stars and compact objects can be studied over cosmic time by identifying supernovae (SNe) and gamma-ray bursts (GRBs) in other galaxies and determining their redshifts. Modeling GRBs and their afterglows to probe the jets of GRBs can shed light on the emission mechanism, rate, and energetics of these events. In Chapter 1, I discuss the current state of astronomical transient study, including sources of interest, instrumentation, and data reduction techniques, with a focus on work in the infrared. In Chapter 2, I present original work published in the Proceedings of the Astronomical Society of the Pacific, testing InGaAs infrared detectors for astronomical use (Strausbaugh, Jackson, and Butler 2018); highlights of this work include observing the exoplanet transit of HD189773B, and detecting the nearby supernova SN2016adj with an InGaAs detector mounted on a small telescope at ASU. In Chapter 3, I discuss my work on GRB jets published in the Astrophysical Journal Letters, highlighting the interesting case of GRB 160625B (Strausbaugh et al. 2019), where I interpret a late-time bump in the GRB afterglow lightcurve as evidence for a bright-edged jet. -
Arxiv:1802.07727V1 [Astro-Ph.HE] 21 Feb 2018 Tion Systems to Standard Candles in Cosmology (E.G., Wijers Et Al
Astronomy & Astrophysics manuscript no. XSGRB_sample_arxiv c ESO 2018 2018-02-23 The X-shooter GRB afterglow legacy sample (XS-GRB)? J. Selsing1;??, D. Malesani1; 2; 3,y, P. Goldoni4,y, J. P. U. Fynbo1; 2,y, T. Krühler5,y, L. A. Antonelli6,y, M. Arabsalmani7; 8, J. Bolmer5; 9,y, Z. Cano10,y, L. Christensen1, S. Covino11,y, P. D’Avanzo11,y, V. D’Elia12,y, A. De Cia13, A. de Ugarte Postigo1; 10,y, H. Flores14,y, M. Friis15; 16, A. Gomboc17, J. Greiner5, P. Groot18, F. Hammer14, O.E. Hartoog19,y, K. E. Heintz1; 2; 20,y, J. Hjorth1,y, P. Jakobsson20,y, J. Japelj19,y, D. A. Kann10,y, L. Kaper19, C. Ledoux9, G. Leloudas1, A.J. Levan21,y, E. Maiorano22, A. Melandri11,y, B. Milvang-Jensen1; 2, E. Palazzi22, J. T. Palmerio23,y, D. A. Perley24,y, E. Pian22, S. Piranomonte6,y, G. Pugliese19,y, R. Sánchez-Ramírez25,y, S. Savaglio26, P. Schady5, S. Schulze27,y, J. Sollerman28, M. Sparre29,y, G. Tagliaferri11, N. R. Tanvir30,y, C. C. Thöne10, S.D. Vergani14,y, P. Vreeswijk18; 26,y, D. Watson1; 2,y, K. Wiersema21; 30,y, R. Wijers19, D. Xu31,y, and T. Zafar32 (Affiliations can be found after the references) Received/ accepted ABSTRACT In this work we present spectra of all γ-ray burst (GRB) afterglows that have been promptly observed with the X-shooter spectrograph until 31=03=2017. In total, we obtained spectroscopic observations of 103 individual GRBs observed within 48 hours of the GRB trigger. Redshifts have been measured for 97 per cent of these, covering a redshift range from 0.059 to 7.84. -
Meeting Program
A A S MEETING PROGRAM 211TH MEETING OF THE AMERICAN ASTRONOMICAL SOCIETY WITH THE HIGH ENERGY ASTROPHYSICS DIVISION (HEAD) AND THE HISTORICAL ASTRONOMY DIVISION (HAD) 7-11 JANUARY 2008 AUSTIN, TX All scientific session will be held at the: Austin Convention Center COUNCIL .......................... 2 500 East Cesar Chavez St. Austin, TX 78701 EXHIBITS ........................... 4 FURTHER IN GRATITUDE INFORMATION ............... 6 AAS Paper Sorters SCHEDULE ....................... 7 Rachel Akeson, David Bartlett, Elizabeth Barton, SUNDAY ........................17 Joan Centrella, Jun Cui, Susana Deustua, Tapasi Ghosh, Jennifer Grier, Joe Hahn, Hugh Harris, MONDAY .......................21 Chryssa Kouveliotou, John Martin, Kevin Marvel, Kristen Menou, Brian Patten, Robert Quimby, Chris Springob, Joe Tenn, Dirk Terrell, Dave TUESDAY .......................25 Thompson, Liese van Zee, and Amy Winebarger WEDNESDAY ................77 We would like to thank the THURSDAY ................. 143 following sponsors: FRIDAY ......................... 203 Elsevier Northrop Grumman SATURDAY .................. 241 Lockheed Martin The TABASGO Foundation AUTHOR INDEX ........ 242 AAS COUNCIL J. Craig Wheeler Univ. of Texas President (6/2006-6/2008) John P. Huchra Harvard-Smithsonian, President-Elect CfA (6/2007-6/2008) Paul Vanden Bout NRAO Vice-President (6/2005-6/2008) Robert W. O’Connell Univ. of Virginia Vice-President (6/2006-6/2009) Lee W. Hartman Univ. of Michigan Vice-President (6/2007-6/2010) John Graham CIW Secretary (6/2004-6/2010) OFFICERS Hervey (Peter) STScI Treasurer Stockman (6/2005-6/2008) Timothy F. Slater Univ. of Arizona Education Officer (6/2006-6/2009) Mike A’Hearn Univ. of Maryland Pub. Board Chair (6/2005-6/2008) Kevin Marvel AAS Executive Officer (6/2006-Present) Gary J. Ferland Univ. of Kentucky (6/2007-6/2008) Suzanne Hawley Univ. -
No Supernovae Associated with Two Long-Duration Γ-Ray Bursts
1 No supernovae associated with two long-duration γ-ray bursts Johan P. U. Fynbo1, Darach Watson1, Christina C. Thöne1, Jesper Sollerman1,2, Joshua S. Bloom3, Tamara M. Davis1, Jens Hjorth1, Páll Jakobsson4, Uffe G. Jørgensen5, John F. Graham6, Andrew S. Fruchter6, David Bersier7, Lisa Kewley8, Arnaud Cassan9, José María Castro Cerón1, Suzanne Foley10, Javier Gorosabel11, Tobias C. Hinse5, Keith D. Horne12, Brian L. Jensen1, Sylvio Klose13, Daniel Kocevski3, Jean-Baptiste Marquette14, Daniel Perley3, Enrico Ramirez-Ruiz15,16, Maximilian D. Stritzinger1, Paul M. Vreeswijk17,18, Ralph A. M. Wijers19, Kristian G. Woller5, Dong Xu1, Marta Zub6 1Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark 2Department of Astronomy, Stockholm University, Sweden 3Department of Astronomy, University of California at Berkeley, 601 Campbell Hall, Berkeley, CA 94720, USA 4Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Herts, AL10 9AB, UK 5Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark 6Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, Maryland 21218, USA 7Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD, UK 2 8University of Hawaii, Institute of Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, US 9Astronomisches Rechen-Institut (ARI), Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchof Str. -
References [1] Adhikari, B., S
List of Refereed Publications Wind Spacecraft: 2018 References [1] Adhikari, B., S. Dahal, N. Sapkota, P. Baruwal, B. Bhattarai, K. Khanal, and N. P. Chapagain (2018), Field-Aligned Current and Polar Cap Potential and Geomagnetic Dis- turbances: A Review of Cross-Correlation Analysis, Earth and Space Science, 5, 440{455, 10.1029/2018EA000392. [2] Afanasiev, A., A. Aran, R. Vainio, A. Rouillard, P. Zucca, D. Lario, S. Barcewicz, R. Siipola, J. Pomoell, B. Sanahuja, and O. E. Malandraki (2018), Modelling of Shock- Accelerated Gamma-Ray Events, in Solar Particle Radiation Storms Forecasting and Analysis, Astrophysics and Space Science Library, vol. 444, edited by O. E. Malandraki and N. B. Crosby, pp. 157{177, 10.1007/978-3-319-60051-2 9. [3] Akita, M., J. Kataoka, M. Arimoto, Y. Sofue, T. Totani, Y. Inoue, and S. Nakashima (2018), Diffuse X-Ray Emission from the Northern Arc of Loop I Observed with Suzaku, Astrophys. J., 862, 88, 10.3847/1538-4357/aacd08. [4] Al-Haddad, N., T. Nieves-Chinchilla, N. P. Savani, N. Lugaz, and I. I. Roussev (2018), Fitting and Reconstruction of Thirteen Simple Coronal Mass Ejections, Solar Phys., 293, 73, 10.1007/s11207-018-1288-3. [5] Al-Shakarchi, D. A., and H. Morgan (2018), Properties of the HPS-ICME-CIR Interaction Event of 9-10 September 2011, J. Geophys. Res., 123(4), 2535{2556, 10.1002/2017JA024849. [6] Ala-Lahti, M. M., E. K. J. Kilpua, A. P. Dimmock, A. Osmane, T. Pulkkinen, and J. Souˇcek(2018), Statistical analysis of mirror mode waves in sheath regions driven by interplanetary coronal mass ejection, Ann. -
Cviewoftherestlesssn2009ip Reveals the Explosive Ejection of a Massive Star Envelope Margutti, R., Et Al
1 Peter J. Brown Office Address Contact Information M311 Mitchell Institute for Fundamental Physics and Astronomy E-mail: [email protected] Department of Physics & Astronomy, Texas A&M University Cell: (979) 402-4523 Skype: grbpeter 4242 TAMU, College Station, TX 77843 www.linkedin.com/in/peter-brown-supernova Highlights Observational Astrophysicist with experience in ground and space-based Ultraviolet and• Optical Photometry and Spectroscopy of Supernovae and other Transients Leader of Swift supernova team since 2005 and Swift Cycle 14 Key Project • PI of 5 Hubble Space Telescope Programs • Principal Investigator of External Grants Totaling over $2,600,000 • 18 Refereed, First Author Journal Articles, 140+ Coauthored Journal Articles • 2017 Texas A&M College of Science Undergraduate Research Mentoring Award • Education Ph.D. in Astronomy & Astrophysics – Pennsylvania State University August 2009 Thesis Title: “The Ultraviolet Properties of Supernovae” Thesis Advisor: Dr. P. W. A. Roming B.S. in Physics and Astronomy – Brigham Young University August 2004 Senior Thesis Title: “Observing Gamma Ray Burst Afterglows from BYU’s Orson Pratt Observatory” Thesis Advisor: Professor J. W. Moody Academic Research Scientist – Mitchell Institute, Texas A&M University 2016 – present Positions Visiting Associate Professor Spring 2020 Visiting Assistant Professor Spring 2018 Mitchell Fellow, Postdoctoral Research Associate 2012 – 2016 Supervisor: Professor Lifan Wang Postdoctoral Research Associate – University of Utah 2009 – 2012 Supervisor: Professor -
Liverpool Telescope 2: a New Robotic Facility for Rapid Transient Follow-Up
Noname manuscript No. (will be inserted by the editor) Liverpool Telescope 2: a new robotic facility for rapid transient follow-up C.M. Copperwheat · I.A. Steele · R.M. Barnsley · S.D. Bates · D. Bersier · M.F. Bode · D. Carter · N.R. Clay · C.A. Collins · M.J. Darnley · C.J. Davis · C.M. Gutierrez · D.J. Harman · P.A. James · J.H. Knapen · S. Kobayashi · J.M. Marchant · P.A. Mazzali · C.J. Mottram · C.G. Mundell · A. Newsam · A. Oscoz · E. Palle · A. Piascik · R. Rebolo · R.J. Smith Received: date / Accepted: date Abstract The Liverpool Telescope is one of the world’s premier facilities for time domain astronomy. The time domain landscape is set to radically change in the coming decade, with synoptic all-sky surveys such as LSST providing huge numbers of transient detections on a nightly basis; transient detections across the electromagnetic spectrum from other major facilities such as SVOM, SKA and CTA; and the era of ‘multi-messenger astronomy’, wherein astro- physical events are detected via non-electromagnetic means, such as neutrino or gravitational wave emission. We describe here our plans for the Liverpool Telescope 2: a new robotic telescope designed to capitalise on this new era of time domain astronomy. LT2 will be a 4-metre class facility co-located with the Liverpool Telescope at the Observatorio del Roque de Los Muchachos on the Canary island of La Palma. The telescope will be designed for extremely C.M. Copperwheat · I.A. Steele · R.M. Barnsley · S.D. Bates · D. Bersier · M.F. Bode · D. -
The Transient High Energy Sky and Early Universe Surveyor (THESEUS)
Downloaded from orbit.dtu.dk on: Oct 10, 2021 The Transient High Energy Sky and Early Universe Surveyor (THESEUS) Amati, L.; O'Brien, P.; Goetz, D.; Bozzo, E.; Tenzer, C.; Frontera, F.; Ghirlanda, G.; Labanti, C.; Osborne, J. P.; Stratta, G. Total number of authors: 212 Published in: Space Science Reviews Publication date: 2021 Document Version Early version, also known as pre-print Link back to DTU Orbit Citation (APA): Amati, L., O'Brien, P., Goetz, D., Bozzo, E., Tenzer, C., Frontera, F., Ghirlanda, G., Labanti, C., Osborne, J. P., Stratta, G., Tanvir, N., Willingale, R., Attina, P., Campana, R., Castro-Tirado, A. J., Contini, C., Fuschino, F., Gomboc, A., Hudec, R., ... Zicha, J. (2021). The Transient High Energy Sky and Early Universe Surveyor (THESEUS). Manuscript submitted for publication. https://export.arxiv.org/abs/1710.04638v2 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.