Reassessment of the Old but Still Employed Theories of Universe Through Database Checking Author: Weitter Duckss (Slavko Sedic)
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Lurking in the Shadows: Wide-Separation Gas Giants As Tracers of Planet Formation
Lurking in the Shadows: Wide-Separation Gas Giants as Tracers of Planet Formation Thesis by Marta Levesque Bryan In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy CALIFORNIA INSTITUTE OF TECHNOLOGY Pasadena, California 2018 Defended May 1, 2018 ii © 2018 Marta Levesque Bryan ORCID: [0000-0002-6076-5967] All rights reserved iii ACKNOWLEDGEMENTS First and foremost I would like to thank Heather Knutson, who I had the great privilege of working with as my thesis advisor. Her encouragement, guidance, and perspective helped me navigate many a challenging problem, and my conversations with her were a consistent source of positivity and learning throughout my time at Caltech. I leave graduate school a better scientist and person for having her as a role model. Heather fostered a wonderfully positive and supportive environment for her students, giving us the space to explore and grow - I could not have asked for a better advisor or research experience. I would also like to thank Konstantin Batygin for enthusiastic and illuminating discussions that always left me more excited to explore the result at hand. Thank you as well to Dimitri Mawet for providing both expertise and contagious optimism for some of my latest direct imaging endeavors. Thank you to the rest of my thesis committee, namely Geoff Blake, Evan Kirby, and Chuck Steidel for their support, helpful conversations, and insightful questions. I am grateful to have had the opportunity to collaborate with Brendan Bowler. His talk at Caltech my second year of graduate school introduced me to an unexpected population of massive wide-separation planetary-mass companions, and lead to a long-running collaboration from which several of my thesis projects were born. -
100 Closest Stars Designation R.A
100 closest stars Designation R.A. Dec. Mag. Common Name 1 Gliese+Jahreis 551 14h30m –62°40’ 11.09 Proxima Centauri Gliese+Jahreis 559 14h40m –60°50’ 0.01, 1.34 Alpha Centauri A,B 2 Gliese+Jahreis 699 17h58m 4°42’ 9.53 Barnard’s Star 3 Gliese+Jahreis 406 10h56m 7°01’ 13.44 Wolf 359 4 Gliese+Jahreis 411 11h03m 35°58’ 7.47 Lalande 21185 5 Gliese+Jahreis 244 6h45m –16°49’ -1.43, 8.44 Sirius A,B 6 Gliese+Jahreis 65 1h39m –17°57’ 12.54, 12.99 BL Ceti, UV Ceti 7 Gliese+Jahreis 729 18h50m –23°50’ 10.43 Ross 154 8 Gliese+Jahreis 905 23h45m 44°11’ 12.29 Ross 248 9 Gliese+Jahreis 144 3h33m –9°28’ 3.73 Epsilon Eridani 10 Gliese+Jahreis 887 23h06m –35°51’ 7.34 Lacaille 9352 11 Gliese+Jahreis 447 11h48m 0°48’ 11.13 Ross 128 12 Gliese+Jahreis 866 22h39m –15°18’ 13.33, 13.27, 14.03 EZ Aquarii A,B,C 13 Gliese+Jahreis 280 7h39m 5°14’ 10.7 Procyon A,B 14 Gliese+Jahreis 820 21h07m 38°45’ 5.21, 6.03 61 Cygni A,B 15 Gliese+Jahreis 725 18h43m 59°38’ 8.90, 9.69 16 Gliese+Jahreis 15 0h18m 44°01’ 8.08, 11.06 GX Andromedae, GQ Andromedae 17 Gliese+Jahreis 845 22h03m –56°47’ 4.69 Epsilon Indi A,B,C 18 Gliese+Jahreis 1111 8h30m 26°47’ 14.78 DX Cancri 19 Gliese+Jahreis 71 1h44m –15°56’ 3.49 Tau Ceti 20 Gliese+Jahreis 1061 3h36m –44°31’ 13.09 21 Gliese+Jahreis 54.1 1h13m –17°00’ 12.02 YZ Ceti 22 Gliese+Jahreis 273 7h27m 5°14’ 9.86 Luyten’s Star 23 SO 0253+1652 2h53m 16°53’ 15.14 24 SCR 1845-6357 18h45m –63°58’ 17.40J 25 Gliese+Jahreis 191 5h12m –45°01’ 8.84 Kapteyn’s Star 26 Gliese+Jahreis 825 21h17m –38°52’ 6.67 AX Microscopii 27 Gliese+Jahreis 860 22h28m 57°42’ 9.79, -
METEOR CSILLAGÁSZATI ÉVKÖNYV 2019 Meteor Csillagászati Évkönyv 2019
METEOR CSILLAGÁSZATI ÉVKÖNYV 2019 meteor csillagászati évkönyv 2019 Szerkesztette: Benkő József Mizser Attila Magyar Csillagászati Egyesület www.mcse.hu Budapest, 2018 Az évkönyv kalendárium részének összeállításában közreműködött: Tartalom Bagó Balázs Görgei Zoltán Kaposvári Zoltán Kiss Áron Keve Kovács József Bevezető ....................................................................................................... 7 Molnár Péter Sánta Gábor Kalendárium .............................................................................................. 13 Sárneczky Krisztián Szabadi Péter Cikkek Szabó Sándor Szőllősi Attila Zsoldos Endre: 100 éves a Nemzetközi Csillagászati Unió ........................191 Zsoldos Endre Maria Lugaro – Kereszturi Ákos: Elemkeletkezés a csillagokban.............. 203 Szabó Róbert: Az OGLE égboltfelmérés 25 éve ........................................218 A kalendárium csillagtérképei az Ursa Minor szoftverrel készültek. www.ursaminor.hu Beszámolók Mizser Attila: A Magyar Csillagászati Egyesület Szakmailag ellenőrizte: 2017. évi tevékenysége .........................................................................242 Szabados László Kiss László – Szabó Róbert: Az MTA CSFK Csillagászati Intézetének 2017. évi tevékenysége .........................................................................248 Petrovay Kristóf: Az ELTE Csillagászati Tanszékének működése 2017-ben ............................................................................ 262 Szabó M. Gyula: Az ELTE Gothard Asztrofi zikai Obszervatórium -
The Maunder Minimum and the Variable Sun-Earth Connection
The Maunder Minimum and the Variable Sun-Earth Connection (Front illustration: the Sun without spots, July 27, 1954) By Willie Wei-Hock Soon and Steven H. Yaskell To Soon Gim-Chuan, Chua Chiew-See, Pham Than (Lien+Van’s mother) and Ulla and Anna In Memory of Miriam Fuchs (baba Gil’s mother)---W.H.S. In Memory of Andrew Hoff---S.H.Y. To interrupt His Yellow Plan The Sun does not allow Caprices of the Atmosphere – And even when the Snow Heaves Balls of Specks, like Vicious Boy Directly in His Eye – Does not so much as turn His Head Busy with Majesty – ‘Tis His to stimulate the Earth And magnetize the Sea - And bind Astronomy, in place, Yet Any passing by Would deem Ourselves – the busier As the Minutest Bee That rides – emits a Thunder – A Bomb – to justify Emily Dickinson (poem 224. c. 1862) Since people are by nature poorly equipped to register any but short-term changes, it is not surprising that we fail to notice slower changes in either climate or the sun. John A. Eddy, The New Solar Physics (1977-78) Foreword By E. N. Parker In this time of global warming we are impelled by both the anticipated dire consequences and by scientific curiosity to investigate the factors that drive the climate. Climate has fluctuated strongly and abruptly in the past, with ice ages and interglacial warming as the long term extremes. Historical research in the last decades has shown short term climatic transients to be a frequent occurrence, often imposing disastrous hardship on the afflicted human populations. -
Chemical Composition of the RS Cvn-Type Star 33 Piscium
Baltic Astronomy, vol. 20, 53–63, 2011 CHEMICAL COMPOSITION OF THE RS CVn-TYPE STAR 33 PISCIUM G. Bariseviˇcius1, G. Tautvaiˇsien˙e1, S. Berdyugina2, Y. Chorniy1 and I. Ilyin3 1 Institute of Theoretical Physics and Astronomy, Vilnius University, Goˇstauto 12, Vilnius, LT-01108, Lithuania 2 Kiepenheuer Institut f¨ur Sonnenphysik, Sch¨oneckstr. 6, D-79104 Freiburg, Germany 3 Astrophysical Institute Potsdam, An der Sternwarte 16, Potsdam D-14482, Germany Received: 2011 March 7; accepted 2011 March 25 Abstract. Abundances of 22 chemical elements, including the key elements and isotopes such as 12C, 13C, N and O, are investigated in the spectrum of 33 Psc, a single-lined RS CVn-type binary of low magnetic activity. The high resolution spectra were observed on the Nordic Optical Telescope and analyzed with the MARCS model atmospheres. The following main parameters have been determined: Teff = 4750 K, log g = 2.8, [Fe/H] = –0.09, [C/Fe] = –0.04, [N/Fe] = 0.23, [O/Fe] = 0.05, C/N = 2.14, 12C/13C = 30, which show the first-dredge-up mixing signatures and no extra-mixing. Key words: stars: RS CVn binaries, abundances – stars: individual (33 Psc = HD 28)) 1. INTRODUCTION This is the third paper in a series dedicated to a detailed study of photospheric abundances in RS CVn stars (Tautvaiˇsien˙eet al. 2010; Bariseviˇcius et al. 2010, hereafter Papers I and II) with the main aim to get the carbon isotope 12C/13C and C/N ratios in these chromospherically active stars. We plan to investigate correlations between the abundance alterations of chemical elements in the atmo- spheres of these stars and their physical macro parameters, such as the speed of rotation and the magnetic field. -
Herschel PACS and SPIRE Imaging of CW Leonis*
A&A 518, L141 (2010) Astronomy DOI: 10.1051/0004-6361/201014658 & c ESO 2010 Astrophysics Herschel: the first science highlights Special feature Letter to the Editor Herschel PACS and SPIRE imaging of CW Leonis D. Ladjal1,M.J.Barlow2,M.A.T.Groenewegen3,T.Ueta4,J.A.D.L.Blommaert1, M. Cohen5, L. Decin1,6, W. De Meester1,K.Exter1,W.K.Gear7,H.L.Gomez7,P.C.Hargrave7, R. Huygen1,R.J.Ivison8, C. Jean1, F. Kerschbaum9,S.J.Leeks10,T.L.Lim10, G. Olofsson11, E. Polehampton10,12,T.Posch9,S.Regibo1,P.Royer1, B. Sibthorpe8,B.M.Swinyard10, B. Vandenbussche1 , C. Waelkens1, and R. Wesson2 1 Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium e-mail: [email protected] 2 Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK 3 Koninklijke Sterrenwacht van België, Ringlaan 3, 1180 Brussels, Belgium 4 Dept. of Physics and Astronomy, University of Denver, Mail Stop 6900, Denver, CO 80208, USA 5 Radio Astronomy Laboratory, University of California at Berkeley, CA 94720, USA 6 Sterrenkundig Instituut Anton Pannekoek, Universiteit van Amsterdam, Kruislaan 403, 1098 Amsterdam, The Netherlands 7 School of Physics and Astronomy, Cardiff University, 5 The Parade, Cardiff, Wales CF24 3YB, UK 8 UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK 9 University Vienna, Department of Astronomy, Türkenschanzstrasse 17, 1180 Wien, Austria 10 Space Science and Technology Department, Rutherford Appleton Laboratory, Oxfordshire, OX11 0QX, UK 11 Dept. of Astronomy, Stockholm University, AlbaNova University Center, Roslagstullsbacken 21, 10691 Stockholm, Sweden 12 Department of Physics, University of Lethbridge, Alberta, Canada Received 31 March 2010 / Accepted 15 April 2010 ABSTRACT Herschel PACS and SPIRE images have been obtained over a 30 × 30 area around the well-known carbon star CW Leo (IRC +10 216). -
Solar Writer Report for Abraham Lincoln
FIXED STARS A Solar Writer Report for Abraham Lincoln Written by Diana K Rosenberg Compliments of:- Stephanie Johnson Seeing With Stars Astrology PO Box 159 Stepney SA 5069 Australia Tel/Fax: +61 (08) 8331 3057 Email: [email protected] Web: www.esotech.com.au Page 2 Abraham Lincoln Natal Chart 12 Feb 1809 12:40:56 PM UT +0:00 near Hodgenville 37°N35' 085°W45' Tropical Placidus 22' 13° 08°ˆ ‡ 17' ¾ 06' À ¿É ‰ 03° ¼ 09° 00° 06° 09°06° ˆ ˆ ‡ † ‡ 25° 16' 41'08' 40' † 01' 09' Œ 29' ‰ 9 10 23° ¶ 8 27°‰ 11 Ï 27° 01' ‘ ‰02' á 7 12 ‘ áá 23° á 23° ¸ 23°Š27' á Š à „ 28' 28' 6 18' 1 10°‹ º ‹37' 13° 05' ‹ 5 Á 22° ½ 27' 2 4 01' Ü 3 07° Œ ƒ » 09' 23° 09° Ý Ü 06° 16' 06' Ê 00°ƒ 13° 22' Ý 17' 08°‚ Page 23 Astrological Summary Chart Point Positions: Abraham Lincoln Planet Sign Position House Comment The Moon Capricorn 27°Cp01' 12th The Sun Aquarius 23°Aq27' 12th read into 1st House Mercury Pisces 10°Pi18' 1st Venus Aries 7°Ar27' 1st read into 2nd House Mars Libra 25°Li29' 8th Jupiter Pisces 22°Pi05' 1st Saturn Sagittarius 3°Sg08' 9th read into 10th House Uranus Scorpio 9°Sc40' 8th Neptune Sagittarius 6°Sg41' 9th read into 10th House Pluto Pisces 13°Pi37' 1st The North Node Scorpio 6°Sc09' 8th The South Node Taurus 6°Ta09' 2nd The Ascendant Aquarius 23°Aq28' 1st The Midheaven Sagittarius 8°Sg22' 10th The Part of Fortune Capricorn 27°Cp02' 12th Chart Point Aspects Planet Aspect Planet Orb App/Sep The Moon Square Mars 1°32' Separating The Moon Conjunction The Part of Fortune 0°00' Applying The Sun Trine Mars 2°02' Applying The Sun Conjunction The Ascendant -
Spectropolarimetry As a Probe of Stellar Winds
Spectropolarimetry as a Probe of Stellar Winds Timothy James Harries Thesis submitted for the degree of Doctor of Philosophy in the Faculty of Science of the University of London. UCL Department of Physics & Astronomy U n iv e r s it y • C o l l e g e • L o n d o n February 1995 ProQuest Number: 10045605 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. uest. ProQuest 10045605 Published by ProQuest LLC(2016). Copyright of the Dissertation is held by the Author. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code. Microform Edition © ProQuest LLC. ProQuest LLC 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 48106-1346 Abstract The use of spectropolarimetry as a diagnostic probe of stellar-wind structure is inves tigated by using high-quality observations and state-of-the-art analytical and numerical models. The winds of late-type giant stars are studied through the highly polarized 6830Â and 7088Â Raman-scattered emission hnes that are observed in many symbiotic systems. A spectropolarimetric survey of 28 symbiotic stars is presented. A Monte-Carlo code is developed in order to aid interpretation of the hnes and the parameter sensitivity of the Raman hne polarization spectrum is investigated. -
PDF Version in Chronological Order (Updated May 17, 2013)
Complete Bibliography for Ritter Observatory May 17, 2013 The following papers are based in whole or in part on observations made at Ritter Observatory. External collaborators are listed in parentheses unless the research was done while they were University of Toledo students. Refereed or invited: 1. A. H. Delsemme and J. L. Moreau 1973, Astrophys. Lett., 14, 181–185, “Brightness Profiles in the Neutral Coma of Comet Bennett (1970 II)” 2. B. W. Bopp and F. Fekel Jr. 1976, A. J., 81, 771–773, “HR 1099: A New Bright RS CVn Variable” 3. A. H. Delsemme and M. R. Combi 1976, Ap. J. (Letters), 209, L149–L151, “The Production Rate and Possible Origin of O(1D) in Comet Bennett 1970 II” 4. A. H. Delsemme and M. R. Combi 1976, Ap. J. (Letters), 209, L153–L156, “Production + Rate and Origin of H2O in Comet Bennett 1970 II” 5. D. W. Willmarth 1976, Pub. A. S. P., 88, 86–87, “The Orbit of 71 Draconis” 6. W. F. Rush and R. W. Thompson 1977, Ap. J., 211, 184–188, “Rapid Variations of Emission-Line Profiles in Nova Cygni 1975” 7. S. E. Smith and B. W. Bopp 1980, Pub. A. S. P., 92, 225–232, “A Microcomputer-Based System for the Automated Reduction of Astronomical Spectra” 8. B. W. Bopp and P. V. Noah 1980, Pub. A. S. P., 92, 333–337, “Spectroscopic Observations of the Surface-Activity Binary II Pegasi (HD 224085)” 9. M. R. Combi and A. H. Delsemme 1980, Ap. J., 237, 641–645, “Neutral Cometary Atmospheres. II. -
Sodium and Potassium Signatures Of
Sodium and Potassium Signatures of Volcanic Satellites Orbiting Close-in Gas Giant Exoplanets Apurva Oza, Robert Johnson, Emmanuel Lellouch, Carl Schmidt, Nick Schneider, Chenliang Huang, Diana Gamborino, Andrea Gebek, Aurelien Wyttenbach, Brice-Olivier Demory, et al. To cite this version: Apurva Oza, Robert Johnson, Emmanuel Lellouch, Carl Schmidt, Nick Schneider, et al.. Sodium and Potassium Signatures of Volcanic Satellites Orbiting Close-in Gas Giant Exoplanets. The Astro- physical Journal, American Astronomical Society, 2019, 885 (2), pp.168. 10.3847/1538-4357/ab40cc. hal-02417964 HAL Id: hal-02417964 https://hal.sorbonne-universite.fr/hal-02417964 Submitted on 18 Dec 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. The Astrophysical Journal, 885:168 (19pp), 2019 November 10 https://doi.org/10.3847/1538-4357/ab40cc © 2019. The American Astronomical Society. Sodium and Potassium Signatures of Volcanic Satellites Orbiting Close-in Gas Giant Exoplanets Apurva V. Oza1 , Robert E. Johnson2,3 , Emmanuel Lellouch4 , Carl Schmidt5 , Nick Schneider6 , Chenliang Huang7 , Diana Gamborino1 , Andrea Gebek1,8 , Aurelien Wyttenbach9 , Brice-Olivier Demory10 , Christoph Mordasini1 , Prabal Saxena11, David Dubois12 , Arielle Moullet12, and Nicolas Thomas1 1 Physikalisches Institut, Universität Bern, Bern, Switzerland; [email protected] 2 Engineering Physics, University of Virginia, Charlottesville, VA 22903, USA 3 Physics, New York University, 4 Washington Place, New York, NY 10003, USA 4 LESIA–Observatoire de Paris, CNRS, UPMC Univ. -
Modeling the Spatial Structure of Debris Disks
MODELING THE SPATIAL STRUCTURE OF DEBRIS DISKS Simultaneous multi-wavelength modeling and predictions on the observability of planet-disk interaction Dissertation zur Erlangung des Doktorgrades der Mathematisch-Naturwissenschaftlichen Fakult¨at der Christian-Albrechts-Universit¨at zu Kiel vorgelegt von Steve Ertel Kiel, 2011 Referent: Prof. Dr. Sebastian Wolf Koreferent: Prof. Dr. Holger Kersten Tag der m¨undlichen Pr¨ufung: 07.02.2012 Zum Druck genehmigt: 07.02.2012 gez. Prof. Dr. Lutz Kipp, Dekan To those who are more important to me than this work Ach! was in tiefer Brust uns da entsprungen, Was sich die Lippe sch¨uchtern vorgelallt, Mißraten jetzt und jetzt vielleicht gelungen, Verschlingt des wilden Augenblicks Gewalt. Oft wenn es erst durch Jahre durchgedrungen Erscheint es in vollendeter Gestalt. Was gl¨anzt ist f¨ur den Augenblick geboren; Das Echte bleibt der Nachwelt unverloren. (Goethe, Faust, Vorspiel auf dem Theater) Abstract The content of the present thesis can be grouped in two main topics: (1) The modeling of the spatial dust distribution in debris disks from available high spatial resolution, high quality data. (2) The modeling of planet-disk interaction in debris disks, the investigation of the observability of this process with present and near future instruments, and the preparation and execution of new observations of debris disks. Debris disks are evolved dust disks (mostly) around main sequence stars. The dust de- tected in such disks must be transient or, more likely, continuously replenished by ongoing collisions of bigger objects like planetesimals left over from the planet formation process. A correlation between the existence of planets and debris disks is expected. -
The Blue Planet Report from Stellafane Perspective on Apollo How to Gain and Retain New Members
Published by the Astronomical League Vol. 71, No. 4 September 2019 THE BLUE PLANET REPORT FROM STELLAFANE 7.20.69 5 PERSPECTIVE ON APOLLO YEARS APOLLO 11 HOW TO GAIN AND RETAIN NEW MEMBERS mic Hunter h Cos h 4 er’s 5 t h Win 6 7h +30° AURIG A +30° Fast Facts TAURUS Orion +20° χ1 χ2 +20° GE MIN I ated winter nights are domin ο1 Mid ξ ν 2 ORIO N ο tion Orion. This +10° by the constella 1 a π Meiss λ 2 μ π +10° 2 φ1 attended by his φ 3 unter, α γ π cosmic h Bellatrix 4 Betelgeuse π d ω Canis Major an ψ ρ π5 hunting dogs, π6 0° intaka aurus the M78 δ M , follows T 0° ε and Minor Alnitak Alnilam What’s Your Pleasure? ζ h σ η vens eac EROS ross the hea MONOC M43 M42 Bull ac θ τ ι υ ess pursuit. β –10° night in endl Saiph Rigel –10° κ The showpiece of the ANI S C LEPU S ERIDANU S ion MAJOR constellation is the Or ORION (Constellation) –20° wn here), –20° Nebula (M42,sho ion 5 hr; Location: Right Ascens a region of nebulosity ° north 4h Declination 5 5h 6h 7h 2 square degrees th just 1,300 a: 594 and starbir Are 3 4 5 6 0 1 2 0 -2 -1 he Hunter 2 Symbol: T 0 t-years away that is M42 (Orion Nebula); C ligh Notable Objects: a la); NG C 2024 laked eye as a tary nebu e M78 (plane visible to the n n la) d.