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Sky Highlights for 2021
JANUARY 2021 OBSERVING Celestial Calendar by Bob King Sky Highlights for 2021 Courtesy of Sky & Telescope Sky Highlights for 2021 A full year of observing enjoyment awaits. F or our January Celestial Calendar installment, we’ve decided to pres- The limb of the eclipsed ent a “sneak-peek” selection of some of the most interesting celestial Moon pokes out from highlights for 2021. (Each event will be described in greater detail in upcoming issues.) the umbra in this photo The coming year has its share of excitement, with several fi ne eclipses, captured during the the return of a few modestly bright periodic comets, and the usual April 15, 2014, total assortment of meteor showers and eye-catching conjunctions. lunar eclipse. This view January 3: The Quadrantid meteor shower peaks around 6:30 a.m. PST is similar to how the (14:30 UT). The timing of the peak means the display favors skywatchers Moon will appear at on the West Coast and in Alaska. Unfortunately, light from the waning gibbous Moon in Leo will blot out many of the fainter meteors. maximum eclipse during March 4: Vesta, the brightest and second-most massive asteroid, reaches November’s partial lunar opposition 1¼° northeast of 3.3-magnitude Theta Leonis, in the tail of eclipse. Leo. At magnitude 6.0, Vesta is bright enough to be glimpsed by keen- eyed observers without optical aid from a dark sky. Binoculars will make the asteroid an easy catch. KING BOB Page 1 March 5: Mercury and Jupiter are though many other locations will be just 21′ apart, low in the east-southeast able to see at least part of the event. -
Milan Dimitrijevic Avgust.Qxd
1. M. Platiša, M. Popović, M. Dimitrijević, N. Konjević: 1975, Z. Fur Natur- forsch. 30a, 212 [A 1].* 1. Griem, H. R.: 1975, Stark Broadening, Adv. Atom. Molec. Phys. 11, 331. 2. Platiša, M., Popović, M. V., Konjević, N.: 1975, Stark broadening of O II and O III lines, Astron. Astrophys. 45, 325. 3. Konjević, N., Wiese, W. L.: 1976, Experimental Stark widths and shifts for non-hydrogenic spectral lines of ionized atoms, J. Phys. Chem. Ref. Data 5, 259. 4. Hey, J. D.: 1977, On the Stark broadening of isolated lines of F (II) and Cl (III) by plasmas, JQSRT 18, 649. 5. Hey, J. D.: 1977, Estimates of Stark broadening of some Ar III and Ar IV lines, JQSRT 17, 729. 6. Hey, J. D.: Breger, P.: 1980, Stark broadening of isolated lines emitted by singly - ionized tin, JQSRT 23, 311. 7. Hey, J. D.: Breger, P.: 1981, Stark broadening of isolated ion lines by plas- mas: Application of theory, in Spectral Line Shapes I, ed. B. Wende, W. de Gruyter, 201. 8. Сыркин, М. И.: 1981, Расчеты электронного уширения спектральных линий в теории оптических свойств плазмы, Опт. Спектроск. 51, 778. 9. Wiese, W. L., Konjević, N.: 1982, Regularities and similarities in plasma broadened spectral line widths (Stark widths), JQSRT 28, 185. 10. Konjević, N., Pittman, T. P.: 1986, Stark broadening of spectral lines of ho- mologous, doubly ionized inert gases, JQSRT 35, 473. 11. Konjević, N., Pittman, T. P.: 1987, Stark broadening of spectral lines of ho- mologous, doubly - ionized inert gases, JQSRT 37, 311. 12. Бабин, С. -
On the Application of Stark Broadening Data Determined with a Semiclassical Perturbation Approach
Atoms 2014, 2, 357-377; doi:10.3390/atoms2030357 OPEN ACCESS atoms ISSN 2218-2004 www.mdpi.com/journal/atoms Article On the Application of Stark Broadening Data Determined with a Semiclassical Perturbation Approach Milan S. Dimitrijević 1,2,* and Sylvie Sahal-Bréchot 2 1 Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia 2 Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique, Observatoire de Paris, UMR CNRS 8112, UPMC, 5 Place Jules Janssen, 92195 Meudon Cedex, France; E-Mail: [email protected] (S.S.-B.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +381-64-297-8021; Fax: +381-11-2419-553. Received: 5 May 2014; in revised form: 20 June 2014 / Accepted: 16 July 2014 / Published: 7 August 2014 Abstract: The significance of Stark broadening data for problems in astrophysics, physics, as well as for technological plasmas is discussed and applications of Stark broadening parameters calculated using a semiclassical perturbation method are analyzed. Keywords: Stark broadening; isolated lines; impact approximation 1. Introduction Stark broadening parameters of neutral atom and ion lines are of interest for a number of problems in astrophysical, laboratory, laser produced, fusion or technological plasma investigations. Especially the development of space astronomy has enabled the collection of a huge amount of spectroscopic data of all kinds of celestial objects within various spectral ranges. Consequently, the atomic data for trace elements, which had not been -
Annual Report 2004 Canada - France - Hawaii Telescope Corporation
Annual Report 2004 Canada - France - Hawaii Telescope Corporation The Canada-France-Hawaii Telescope Corporation operates the CFHT 3.6 m telescope near the summit of the 4200 m dormant volcano Mauna Kea on the Big Island of Hawaii, USA. Support is provided by the National Research Council Canada, the Centre National de la Recherche Scientifique of France, and the University of Hawaii according to the agreement signed June 1974. CFHT is dedicated to the exploration of the Universe through observation. Editors: Picture Credits David Valls-Gabaud & Christian Veillet All images © CFHT except: Copyright Cover: © CFHT and Terapix © 2005 Canada-France-Hawaii Telescope Corporation p. iii, NGC 6726 : © CFHT/MegaCam and Coelum. p. v, Centaurus A : © CFHT/MegaCam and Coelum. http://www.cfht.hawaii.edu p. 3, CFHT/SNLS: © R. Pain, C. Pritchet. p. 7, Seeing : © Terapix. Table of contents Introduction ................................................................................................................................................... 1 Instrument statistics ...................................................................................................................................... 2 Science highlights of 2004 ............................................................................................................................ 3 SNLS : The first year........................................................................................................................... 3 CFHTLS-Deep ................................................................................................................................... -
Uranometría Argentina Bicentenario
URANOMETRÍA ARGENTINA BICENTENARIO Reedición electrónica ampliada, ilustrada y actualizada de la URANOMETRÍA ARGENTINA Brillantez y posición de las estrellas fijas, hasta la séptima magnitud, comprendidas dentro de cien grados del polo austral. Resultados del Observatorio Nacional Argentino, Volumen I. Publicados por el observatorio 1879. Con Atlas (1877) 1 Observatorio Nacional Argentino Dirección: Benjamin Apthorp Gould Observadores: John M. Thome - William M. Davis - Miles Rock - Clarence L. Hathaway Walter G. Davis - Frank Hagar Bigelow Mapas del Atlas dibujados por: Albert K. Mansfield Tomado de Paolantonio S. y Minniti E. (2001) Uranometría Argentina 2001, Historia del Observatorio Nacional Argentino. SECyT-OA Universidad Nacional de Córdoba, Córdoba. Santiago Paolantonio 2010 La importancia de la Uranometría1 Argentina descansa en las sólidas bases científicas sobre la cual fue realizada. Esta obra, cuidada en los más pequeños detalles, se debe sin dudas a la genialidad del entonces director del Observatorio Nacional Argentino, Dr. Benjamin A. Gould. Pero nada de esto se habría hecho realidad sin la gran habilidad, el esfuerzo y la dedicación brindada por los cuatro primeros ayudantes del Observatorio, John M. Thome, William M. Davis, Miles Rock y Clarence L. Hathaway, así como de Walter G. Davis y Frank Hagar Bigelow que se integraron más tarde a la institución. Entre éstos, J. M. Thome, merece un lugar destacado por la esmerada revisión, control de las posiciones y determinaciones de brillos, tal como el mismo Director lo reconoce en el prólogo de la publicación. Por otro lado, Albert K. Mansfield tuvo un papel clave en la difícil confección de los mapas del Atlas. La Uranometría Argentina sobresale entre los trabajos realizados hasta ese momento, por múltiples razones: Por la profundidad en magnitud, ya que llega por vez primera en este tipo de empresa a la séptima. -
Bibliography from ADS File: Lanz.Bib May 31, 2021 1
Bibliography from ADS file: lanz.bib Bouret, J.-C., Hillier, D. J., Depagne, E., et al.: 2016, Before the Burst: August 16, 2021 The Properties of Rapidly Rotating, Massive Supergiants, HST Proposal 2016hst..prop14683B ADS Proffitt, C. R., Brott, I., Cunha, K., et al.: 2016, A Definitive Test of Rotational Hubený, I., Allende Prieto, C., Osorio, Y., & Lanz, T., “TLUSTY Mixing in Massive Stars, HST Proposal 2016hst..prop14673P ADS and SYNSPEC Users’s Guide IV: Upgraded Versions 208 and 54”, Khorrami, Z., Lanz, T., Vakili, F., et al., “VLT/SPHERE deep insight of NGC 2021arXiv210402829H ADS 3603’s core: Segregation or confusion?”, 2016A&A...588L...7K ADS Bouret, J. C., Martins, F., Hillier, D. J., et al., “Massive stars in the Khorrami, Z., Vakili, F., Chesneau, O., & Lanz, T., “The Massive Stars Nursery Small Magellanic Cloud. Evolution, rotation, and surface abundances”, R136”, 2015EAS....71..331K ADS 2021A&A...647A.134B ADS Lagadec, E., Millour, F., & Lanz, T., “Foreword”, 2015EAS....71....1L Peters, G. J., Lanz, T., Bouret, J., et al., “Supernovae Chemical Yields in Magel- ADS lanic Cloud Environments”, 2020AAS...23511025P ADS Lanz, T.: 2015, Probing Supernovae Chemical Yields in Low Metallicity En- de Sá, L., Chièze, J. P., Stehlé, C., et al., “New insight on accretion shocks vironments with UV Spectroscopy of Magellanic Cloud B-type Stars, HST onto young stellar objects. Chromospheric feedback and radiation transfer”, Proposal 2015hst..prop14081L ADS 2019A&A...630A..84D ADS Barstow, M., Holberg, J. B., Hubený, I., Lanz, T., & Sion, E. M.: 2015, The Heap, S., Hull, T., Kendrick, S., et al., “The Probe-class mission concept, Cosmic Wind and Photosphere of the Unique DO White Dwarf RE J0503-289, HST Evolution Through UV Surveys (CETUS)”, 2019BAAS...51g.159H ADS Proposal 2015hst..prop.6628B ADS Danchi, W., Arenberg, J., Bartoszyk, A., et al., “Cosmic Evolu- Bouret, J. -
Saul J. Adelman
SAUL J. ADELMAN Department of Physics 1434 Fairfield Avenue The Citadel Charleston, SC 29407 Charleston, SC 29409 (843) 766-5348 (843) 953-6943 CURRENT POSITION: Professor of Physics, The Citadel (Aug. 22, 1989 - to date) PAST POSITIONS: Associate Professor of Physics, The Citadel (Aug. 23, 1983 to Aug. 21, 1989) NRC-NASA Research Associate, NASA Goddard Space Flight Center (Aug. 1, 1984 - July 31, 1986) Assistant Professor of Physics, The Citadel (Aug. 21, 1978 - Aug. 22, 1983) Assistant Professor of Astronomy, Boston University (Sept. 1, 1974 - Aug. 31, 1978) NAS/NRC Postdoctoral Resident Research Associate, NASA Goddard SpaceFlight Center (Aug. 1, 1972 - Aug. 31, 1974) EDUCATION: Ph.D. in Astronomy, California Institute of Technology, June 1972; Thesis: A Study of Twenty- One Sharp-lined Non-Variable Cool Peculiar A Stars, December 1971 (Dissertation Abstracts International 33, 543-13, number 77-22, 597) B.S. in Physics with high honors and high honors in physics, University of Maryland, June 1966 ACADEMIC HONORS: Phi Beta Kappa Phi Kappa Phi Sigma Pi Sigma Sigma Xi Summer Institute in Space Physics at Columbia University 1965 NDEA Title IV Fellowship 1966-69 ARCS Foundation Fellowship 1970-71 Citadel Development Foundation Faculty Fellowship 1987-93 Faculty Achievement Award 1989, 1997 Governor’s Award for Excellence in Scientific Research at a Primarily Undergraduate Institution 2011 OBSERVING EXPERIENCE: Guest Investigator, Dominion Astrophysical Observatory 1984-2016 Guest Investigator, Hubble Space Telescope 2003-05, 2011-16 Participant -
Detecci´On De Estrellas Extragal´Acticas Con Emisi
DETECCION´ DE ESTRELLAS EXTRAGALACTICAS´ CON EMISION´ EN Hα Juan Felipe Cabrera Garcia Universidad de los Andes Facultad de Ciencias, Departamento de F´ısica Bogot´a,Colombia 2019 Detecci´onde Estrellas Extragal´acticas con Emisi´onen Hα Juan Felipe Cabrera Garcia Monograf´ıapresentada como requisito parcial para optar al t´ıtulode: F´ısico Director: Ph.D. Alejandro Garc´ıaVarela L´ıneade Investigaci´on: Astronom´ıa Universidad de los Andes Facultad de Ciencias, Departamento de F´ısica Bogot´a,Colombia 2019 Ph.D. Alejandro Garc´ıaVarela Director Ph.D. Beatriz Sabogal Mart´ınez Jurado Para Gabriel & Olga Agradecimientos Este es un proyecto que me permiti´oconocer las frustraciones y alegr´ıasque vienen con hacer astronom´ıaobservacional. Durante su realizaci´onhe aprendido que tratar de comprender el universo observ´andolodesde la tierra es un gran reto lleno de obst´aculos y dificultades, pero con paciencia y dedicaci´ones posible. Por esta oportunidad debo agradecer al profesor Alejandro Garc´ıa,quien hace un a~noen su curso de c´umulos abiertos me introdujo al mundo de la fotometr´ıa,y desde en- tonces me estuvo apoyando y contagiando de su entusiasmo para realizar este proyecto. Su constante gu´ıae impulso fueron indispensables para este trabajo. Quiero mencio- nar tambi´ena los profesores Benjam´ınOostra y Beatriz Sabogal, quienes en sus cursos CBU me dieron mis primeras bases en astronom´ıa,que me permitieron llegar hasta aqu´ı. Por ´ultimodebo agradecer a mis padres, mi hermana y a toda la familia en la que Dios me puso. El infinito apoyo y amor que he recibido de ellos constituyen todo lo que soy, los quiero mucho. -
The Universe from Here – December 2018
The Universe from Here – December 2018 A Comet for Christmas – The Holiday Issue Night Rabbit Astronomy Deep Sky: This month we will follow comet 46P as it There is much for amateur astronomers to celebrate passes near the Earth. Comet 46P/Wirtanin is a small this month! Whether you celebrate Hanukah (Dec 2- (1/2-mile diameter) but “hyperactive” short-period 10), the Winter Solstice (December 21), Christmas (Dec comet which orbits the sun every 5.4 years. (46P’s orbit 25), Kwanza (Dec 26-Jan 1), or other traditions; the is shown as a dashed ellipse on the solar system map.) night-sky this December offers many gifts. The sky will It gets its name because it was the 46th confirmed be beautifully clear and dark early in the month. Comet “Periodic” comet and was discovered in 1948 by US 46P will be easily visible throughout the night all month Astronomer Karl Wirtanin. long. Join me this month as we hitch a ride on a comet to experience the wonders of the December skies! Comets are fragments of rock and ice, left over from the formation of the solar system over 4.5 billion years ago. Solar System: Deep-sky viewing will be at its best Periodic comets (designated “P”) orbit the sun and during the first 2 weeks of December, with a NEW return “periodically” to the inner solar system, usually MOON on Dec 8. The moon will again be FULL on Dec less then every 200 years. Other comets (designated 23, shining brightly from the Winter Solstice through “C”) appear rarely and return to their “home” in the the New Year. -
Spectral Line Shapes in Plasmas
Spectral Line Shapes in Plasmas Edited by Evgeny Stambulchik, Annette Calisti, Hyun-Kyung Chung and Manuel Á. González Printed Edition of the Special Issue Published in Atoms www.mdpi.com/journal/atoms Evgeny Stambulchik, Annette Calisti, Hyun-Kyung Chung and Manuel Á. González (Eds.) Spectral Line Shapes in Plasmas This book is a reprint of the special issue that appeared in the online open access journal Atoms (ISSN 2218-2004) in 2014 (available at: http://www.mdpi.com/journal/atoms/special_issues/SpectralLineShapes). Guest Editors Evgeny Stambulchik Hyun-Kyung Chung Department of Particle Physics International Atomic Energy Agency, Atomic and and Astrophysics, Molecular Data Unit, Nuclear Data Section, P.O. Faculty of Physics, Box 100, A-1400 Vienna, Austria Weizmann Institute of Science, Rehovot 7610001, Israel Annette Calisti Manuel Á. González Laboratoire PIIM, UMR7345, Departamento de Física Aplicada, Escuela Técnica Aix-Marseille Université - CNRS, Superior de Ingeniería Informática, Centre Saint Jérôme case 232, Universidad de Valladolid, Paseo de Belén 15, 13397 Marseille Cedex 20, France 47011 Valladolid, Spain Editorial Office Publisher Production Editor MDPI AG Shu-Kun Lin Martyn Rittman Klybeckstrasse 64 4057 Basel, Switzerland 1. Edition 2015 MDPI • Basel • Beijing • Wuhan ISBN 978-3-906980-82-9 © 2015 by the authors; licensee MDPI AG, Basel, Switzerland. All articles in this volume are Open Access distributed under the Creative Commons Attribution 3.0 license (http://creativecommons.org/licenses/by/3.0/), which allows users to download, copy and build upon published articles, even for commercial purposes, as long as the author and publisher are properly credited. The dissemination and distribution of copies of this book as a whole, however, is restricted to MDPI AG, Basel, Switzerland. -
Saul J. Adelman
SAUL J. ADELMAN Department of Physics 1434 Fairfield Avenue The Citadel Charleston, SC 29407 Charleston, SC 29409 (843) 766-5348 (843) 953-6943 CURRENT POSITION: Professor of Physics, The Citadel (Aug. 22, 1989 - to date) PAST POSITIONS: Associate Professor of Physics, The Citadel (Aug. 23, 1983 to Aug. 21, 1989) NRC-NASA Research Associate, NASA Goddard Space Flight Center (Aug. 1, 1984 - July 31, 1986) Assistant Professor of Physics, The Citadel (Aug. 21, 1978 - Aug. 22, 1983) Assistant Professor of Astronomy, Boston University (Sept. 1, 1974 - Aug. 31, 1978) NAS/NRC Postdoctoral Resident Research Associate, NASA Goddard SpaceFlight Center (Aug. 1, 1972 - Aug. 31, 1974) EDUCATION: Ph.D. in Astronomy, California Institute of Technology, June 1972; Thesis: A Study of Twenty- One Sharp-lined Non-Variable Cool Peculiar A Stars, December 1971 (Dissertation Abstracts International 33, 543-13, number 77-22, 597) B.S. in Physics with high honors and high honors in physics, University of Maryland, June 1966 ACADEMIC HONORS: Phi Beta Kappa Phi Kappa Phi Sigma Pi Sigma Sigma Xi Summer Institute in Space Physics at Columbia University 1965 NDEA Title IV Fellowship 1966-69 ARCS Foundation Fellowship 1970-71 Citadel Development Foundation Faculty Fellowship 1987-93 Faculty Achievement Award 1989, 1997 Governor’s Award for Excellence in Scientific Research at a Primarily Undergraduate Institution 2011 OBSERVING EXPERIENCE: Guest Investigator, Dominion Astrophysical Observatory 1984-2018 Guest Investigator, Hubble Space Telescope 2003-05, 2011-18 Participant -
Volume 28, Number 8 June 2021
Volume 28, Number 8 June 2021 From The Chair’s Report by John Gauvreau Editor Summer is here (some days anyways; it’s still pretty cold some other The weather is days. That was actually snow a few days ago, right?) and it’s so nice to see the warming up, the constellations wheeling about in their familiar parade; the spring constellations pandemic is on the of Leo and Bootes giving way as the night goes on to the summer favourites of wane, we hope, and Lyra and Hercules rising in the east. Warm evenings with the moon riding low there should be some through the trees (and clouds). The night sky still gives me that sense of calm good stargazing in the and quiet even during these difficult days. For many that is why this is more months ahead. than just a hobby; it is a salve that offers a moment of peace and comfort in their otherwise challenging days. Have a good summer everyone, and stay safe! HAA Meetings Bob Christmas, Editor Kevin Salwach gave us such a great presentation last month. Taking us through an introduction to binocular observing, he gave us a talk that suited both the editor ‘AT’ beginner and the experienced observer. Thanks Kevin for a stellar job! amateurastronomy.org (Continued on page 2) IN THIS ISSUE: § The Annular Solar Eclipse of June 10, 2021 § So...you really think you're going to Mars? § § NASA Night Sky Notes HAA Explorers § § The Sky This Month for June 2021 Eye Candy § Notes from My Virtual Table, June 2021 Contact Information Hamilton Amateur Astronomers Event Horizon June 2021 Page 1 Chair’s Report (continued) Traditionally our June meeting is the last before a summer break, but that may not be the case this year.