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Ira Sprague Bowen Papers, 1940-1973
http://oac.cdlib.org/findaid/ark:/13030/tf2p300278 No online items Inventory of the Ira Sprague Bowen Papers, 1940-1973 Processed by Ronald S. Brashear; machine-readable finding aid created by Gabriela A. Montoya Manuscripts Department The Huntington Library 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2203 Fax: (626) 449-5720 Email: [email protected] URL: http://www.huntington.org/huntingtonlibrary.aspx?id=554 © 1998 The Huntington Library. All rights reserved. Observatories of the Carnegie Institution of Washington Collection Inventory of the Ira Sprague 1 Bowen Papers, 1940-1973 Observatories of the Carnegie Institution of Washington Collection Inventory of the Ira Sprague Bowen Paper, 1940-1973 The Huntington Library San Marino, California Contact Information Manuscripts Department The Huntington Library 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2203 Fax: (626) 449-5720 Email: [email protected] URL: http://www.huntington.org/huntingtonlibrary.aspx?id=554 Processed by: Ronald S. Brashear Encoded by: Gabriela A. Montoya © 1998 The Huntington Library. All rights reserved. Descriptive Summary Title: Ira Sprague Bowen Papers, Date (inclusive): 1940-1973 Creator: Bowen, Ira Sprague Extent: Approximately 29,000 pieces in 88 boxes Repository: The Huntington Library San Marino, California 91108 Language: English. Provenance Placed on permanent deposit in the Huntington Library by the Observatories of the Carnegie Institution of Washington Collection. This was done in 1989 as part of a letter of agreement (dated November 5, 1987) between the Huntington and the Carnegie Observatories. The papers have yet to be officially accessioned. Cataloging of the papers was completed in 1989 prior to their transfer to the Huntington. -
Rigel & the Witch Nebula
Vol. 20, No. 11 Two-Time Winner of the Astronomical League’s Mabel Sterns Award ☼ 2006 & 2009 November 2012 In This Issue Rigel & the Witch Nebula CCAS Fall 2012 Events .......................... 2 Nicholas’s Humor Corner ....................... 2 October 2012 Meeting Minutes .............. 2 New iPad App from NASA .................... 3 November 2012 Member Speaker .......... 3 The Sky Over Chester County: November 2012 ................................... 4 November 2012 Observing Highlights ........................................... 5 NASA’s Space Place............................... 6 CCAS Directions: Brandywine Valley Association .............................. 7 Through the Eyepiece: The Open Clusters in Auriga: M36, M37 and M38...................................... 8 Membership Renewals .......................... 10 New Member Welcome ........................ 10 CCAS Directions: WCU Map ......................................... 10 Treasurer’s Report ................................ 10 CCAS Information Directory ...................................... 11-12 IC 2118, the Witch Head Nebula spans about 50 light-years and is composed of interstellar Membership Renewals Due dust grains reflecting Rigel's starlight. Photo courtesy of Rogelio Bernal Andreo 11/2012 Buczynski Hepler Important November 2012 Dates Holenstein O’Hara Taylor 6th • Last Quarter Moon, 7:36 p.m. Zibinski 13th • New Moon, 5:08 p.m. 12/2012 Bogusch 17th • Leonid Meteor Shower Peaks Franchi O'Leary 20th • First Quarter Moon, 9:32 a.m. Phipps Ramasamy 28th• Full Moon, 9:46 a.m. 01/2013 Golub Labroli Linskens Loeliger Prasad Rich Smith November 2012 • Chester County Astronomical Society www.ccas.us Observations • 1 Autumn 2012 Minutes from the October 9, 2012 CCAS Monthly Meeting Society Events by Ann Miller, CCAS Secretary November 2012 15 members in attendance were welcomed by our president Roger Taylor. 2nd • West Chester University Planetarium Don Knabb our observing chair gave us our monthly sky tour on Stellari- Show: “Dethroning Earth,” in the Schmucker um. -
Guide Du Ciel Profond
Guide du ciel profond Olivier PETIT 8 mai 2004 2 Introduction hjjdfhgf ghjfghfd fg hdfjgdf gfdhfdk dfkgfd fghfkg fdkg fhdkg fkg kfghfhk Table des mati`eres I Objets par constellation 21 1 Androm`ede (And) Andromeda 23 1.1 Messier 31 (La grande Galaxie d'Androm`ede) . 25 1.2 Messier 32 . 27 1.3 Messier 110 . 29 1.4 NGC 404 . 31 1.5 NGC 752 . 33 1.6 NGC 891 . 35 1.7 NGC 7640 . 37 1.8 NGC 7662 (La boule de neige bleue) . 39 2 La Machine pneumatique (Ant) Antlia 41 2.1 NGC 2997 . 43 3 le Verseau (Aqr) Aquarius 45 3.1 Messier 2 . 47 3.2 Messier 72 . 49 3.3 Messier 73 . 51 3.4 NGC 7009 (La n¶ebuleuse Saturne) . 53 3.5 NGC 7293 (La n¶ebuleuse de l'h¶elice) . 56 3.6 NGC 7492 . 58 3.7 NGC 7606 . 60 3.8 Cederblad 211 (N¶ebuleuse de R Aquarii) . 62 4 l'Aigle (Aql) Aquila 63 4.1 NGC 6709 . 65 4.2 NGC 6741 . 67 4.3 NGC 6751 (La n¶ebuleuse de l’œil flou) . 69 4.4 NGC 6760 . 71 4.5 NGC 6781 (Le nid de l'Aigle ) . 73 TABLE DES MATIERES` 5 4.6 NGC 6790 . 75 4.7 NGC 6804 . 77 4.8 Barnard 142-143 (La tani`ere noire) . 79 5 le B¶elier (Ari) Aries 81 5.1 NGC 772 . 83 6 le Cocher (Aur) Auriga 85 6.1 Messier 36 . 87 6.2 Messier 37 . 89 6.3 Messier 38 . -
GRB 190114C: an Upgraded Legend Arxiv:1901.07505V2 [Astro-Ph.HE] 25 Mar 2019
GRB 190114C: An Upgraded Legend Yu Wang1;2, Liang Li 1, Rahim Moradi 1;2, Remo Ruffini 1;2;3;4;5;6 1ICRANet, P.zza della Repubblica 10, 65122 Pescara, Italy. 2ICRA and Dipartimento di Fisica, Sapienza Universita` di Roma, P.le Aldo Moro 5, 00185 Rome, Italy. 3ICRANet - INAF, Viale del Parco Mellini 84, 00136 Rome, Italy. 4Universite´ de Nice Sophia Antipolis, CEDEX 2, Grand Chateauˆ Parc Valrose, Nice, France. 5ICRANet-Rio, Centro Brasileiro de Pesquisas F´ısicas, Rua Dr. Xavier Sigaud 150, 22290–180 Rio de Janeiro, Brazil. 6ICRA, University Campus Bio-Medico of Rome, Via Alvaro del Portillo 21, I-00128 Rome, Italy. [email protected], [email protected], [email protected], ruffi[email protected] arXiv:1901.07505v2 [astro-ph.HE] 25 Mar 2019 1 Gamma-ray burst (GRB) 190114C first resembles the legendary GRB 130427A: Both are strong sources of GeV emission, exhibiting consistent GeV spectral evolution, and almost identical in detail for the morphology of light-curves in X-ray, gamma-ray and GeV bands, inferring a standard system with differ- ent scales. GRB 190114C is richer than GRB 130427A: a large percentage of ∼ 30% energy is thermal presenting in the gamma-ray prompt emission, mak- ing it as one of the most thermal-prominent GRBs; Moreover, GRB 190114C extends the horizon of GRB research, that for the first time the ultra-high energy TeV emission (> 300 GeV) is detected in a GRB as reported by the MAGIC team. Furthermore, GRB 190114C urges us to revisit the traditional theoretical framework, since most of the GRB’s energy may emit in the GeV and TeV range, not in the conventional MeV range. -
Sky & Telescope
Eclipse from the See Sirius B: The Nearest Spot the Other EDGE OF SPACE p. 66 WHITE DWARF p. 30 BLUE PLANETS p. 50 THE ESSENTIAL GUIDE TO ASTRONOMY What Put the Bang in the Big Bang p. 22 Telescope Alignment Made Easy p. 64 Explore the Nearby Milky Way p. 32 How to Draw the Moon p. 54 OCTOBER 2013 Cosmic Gold Rush Racing to fi nd exploding stars p. 16 Visit SkyandTelescope.com Download Our Free SkyWeek App FC Oct2013_J.indd 1 8/2/13 2:47 PM “I can’t say when I’ve ever enjoyed owning anything more than my Tele Vue products.” — R.C, TX Tele Vue-76 Why Are Tele Vue Products So Good? Because We Aim to Please! For over 30-years we’ve created eyepieces and telescopes focusing on a singular target; deliver a cus- tomer experience “...even better than you imagined.” Eyepieces with wider, sharper fields of view so you see more at any power, Rich-field refractors with APO performance so you can enjoy Andromeda as well as Jupiter in all their splendor. Tele Vue products complement each other to pro- vide an observing experience as exquisite in performance as it is enjoyable and effortless. And how do we score with our valued customers? Judging by superlatives like: “in- credible, truly amazing, awesome, fantastic, beautiful, work of art, exceeded expectations by a mile, best quality available, WOW, outstanding, uncom- NP101 f/5.4 APO refractor promised, perfect, gorgeous” etc., BULLSEYE! See these superlatives in with 110° Ethos-SX eye- piece shown on their original warranty card context at TeleVue.com/comments. -
Cerncourier-April17 213X282 E.Indd 1 22.02.17 11:37 Uhr CERNCOURIER Www
CERN Courier April 2017 Astrowatch Optimize your LLRF with excellent jitter perfor- C OMPILED BY M ARC TÜRLER , ISDC AND O BSERVATORY OF THE U NIVERSITY OF G ENEVA , AND CHIPP, U NIVERSITY OF Z URICH Gravitational lens challenges cosmic expansion mance measurements Low phase noise oscillators are essential in the development, verification Using galaxies as vast gravitational lenses, . agreement with other recent determinations and optimization of every particle accelerator. In a single instrument the et al Visit us at an international group of astronomers has in the local universe using classical ¸FSWP provides best-in-class noise and jitter sensitivity, ultra-fast made an independent measurement of how cosmic-distance ladder methods. One of measurement speed and the benefit of an internal low phase noise oscillator. IPAC in Copenhagen, fast the universe is expanding. The newly these, by Adam Riess and collaborators, finds measured expansion rate is consistent with an even higher value of the Hubble constant ❙ Superior jitter measurement down to 0.3 Hz offset Booth 46 and 47 –1 –1 earlier findings in the local universe based on (H0 = 73.2±1.7 km s Mpc ) and has therefore ❙ Measurement of additive phase noise at the push of a button more traditional methods, but intriguingly triggered a lot of interest in recent months. ❙ Internal low phase noise oscillator coupled with enhanced cross- ESA/Hubble; NASA, Suyu remains higher than the value derived by the The reason is that such values are in correlation functionality Planck satellite – a tension that could hint at tension with the precise determination new physics. -
Luglio – Settembre 2017
Raccolta di Flash news dal sito www.ilcosmo.net Luglio – Settembre 2017 Mappa di tutti gli elementi noti che formano i detriti spaziali intorno alla Terra. Questa raccolta consente l’archiviazione personale di tutte le Flash news comparse sulla homepage del nostro sito nel periodo sopra indicato. Non vi sono ulteriori commenti alle notizie. Sono impaginate in ordine cronologico di uscita. La redazione. Assemblato da Luigi Borghi. Associazione Culturale “Il C.O.S.MO.” (Circolo di Osservazione Scientifico-tecnologica di Modena); C.F.:94144450361 pag: 1 di 50 Questa raccolta, le copie arretrate, i suoi articoli, non possono essere duplicati e commercializzati. È vietata ogni forma di riproduzione, anche parziale, senza l’autorizzazione scritta del circolo “Il C.O.S.Mo”. La loro diffusione all’esterno del circolo e’ vietata. Può essere utilizzata solo dai soci per scopi didattici. - Costo: Gratuito sul WEB per i soci . Raccolta di Flash news dal sito www.ilcosmo.net 1/7/2017 - Il robot che pulirà lo spazio. Sono parecchi anni che gli scienziati e le università di tutto il mondo cercano di risolvere questo enorme problema della sicurezza del volo spaziale: l’accumulo di detriti su orbite operative è potenzialmente devastante per qualsiasi tipo di veicolo spaziale, dai satelliti operativi alle missione con astronauti ed alla ISS. Che non sia un problema facile lo si evince dalla velocità di questi “proiettili” che si aggira sui 28.000 km orari e oltre, dalla impossibilità di identificarne la composizione e dalla impssibilità di determinare i punti di presa di oggetti che, nella maggior parte dei casi, sono pure in rapida rotazione su se stessi. -
Journal Für Astronomie ISSN 1615-0880
Journal für Astronomie www.vds-astro.de ISSN 1615-0880 Nr. 75 4/2020 Zeitschrift der Vereinigung der Sternfreunde e.V. Infrarotastronomie ASTRONOMISCHE VEREINIGUNGEN Die Sternwarte St. Andreasberg KOMETEN Die Entwicklung von C/2020 F3 (NEOWISE) PLANETEN Die Sichtbarkeit von Venus im Frühjahr 2020 Canon EOS 250D & 2000D modifiziert für die Astrofotografie ! Ob mit Kameraobjektiv oder am Teleskop: Modizierte Canon EOS DSLR Kameras bieten Ihnen einen einfachen Einstieg in die Astrofotograe! Die Vorteile im Überblick: • etwa fünffach höhere Empfindlichkeit bei H-alpha und SII • Infrarot Blockung der Kamera bleibt vollständig erhalten • kein Einbau eines teuren Ersatzfilters • mit Astronomik OWB-Clip-Filter uneingeschränkt bei Tag nutzbar • auch ohne Computer am Teleskop einsatzfähig • 14 Bit Datentiefe im RAW-Format, 24 Megapixel • bei der 250Da: Erhalt des EOS Integrated Cleaning System • bei der 250Da: Dreh- und schwenkbarer Bildschirm • kompatibel mit vielen gängigen Astronomieprogrammen • voller Erhalt der Herstellergarantie Weitere Modelle auf Anfrage Wir bauen auch Ihre bereits vorhandene Kamera um! Canon EOS 250Da € 72037 * Canon EOS 2000Da € 54491 * * Tagespreis vom 07. August 2020 mit 200mm 1:4 Reflektor ©Bruno Mattern, Aufnahme Astronomik Deep-Sky RGB Farbfiltersatz Neuentwicklung! + optimierte Bildschärfe + höchster Kontrast + maximale Transmission = optimale Ergebnisse © Michael Sidonio Annals of the Deep Sky - A Survey of Galactic and Extragalactic Objects astro-shop Diese englischsprachige Buchreihe ist als mehrbändiges Werk angelegt, das Das seit zwei Jahrzehnten erfolgreiche Konzept die heutige Sicht auf alle Sternbilder des Himmels und die in Ihnen beobacht- hat inzwischen viele Nachahmer gefunden. baren Objekte darstellt. Deshalb achten Sie unbedingt darauf, dass Sie Die Gliederung erfolgt alphabetisch nach Sternbildern. Vergleichbar sind die auf der richtigen astro-shop Seite landen: Bücher mit "Burnham's Celestial Handbook" oder "Taschenatlas der Sternbilder“, eben aktualisiert auf den Wissens- und Technikstand von heute. -
CERN Courier – Digital Edition Welcome to the Digital Edition of the April 2017 Issue of CERN Courier
I NTERNATIONAL J OURNAL OF H IGH -E NERGY P HYSICS CERNCOURIER WELCOME V OLUME 5 7 N UMBER 3 A PRIL 2 0 1 7 CERN Courier – digital edition Welcome to the digital edition of the April 2017 issue of CERN Courier. Theory in motion Few scientific disciplines enjoy such a close connection with mathematics as particle physics, and at the heart of this relationship lies quantum field theory. Quantum electrodynamics famously predicts quantities, such as the anomalous magnetic moment of the electron, which agree with observations at the level of 10 decimal places, while the Higgs boson existed on paper half a century before the Large Hadron Collider (LHC) flushed it out for real. Driven by the strong performance of the LHC experiments, there has been a burst of activity in recent months concerning next-to-next-to-leading order (NNLO) calculations in quantum chromodynamics to ensure that theory keeps up with the precision of LHC measurements. As the cover feature in this issue explains, cracking the complex NNLO problem demands novel algorithms, mathematical ingenuity and computational muscle. Theorists are also trying to make sense of a number of “exotic” hadrons that have turned up in recent years in experiments such as LHCb and which do not naturally fit the simple quark model. Sticking with the strong-force theme, we also report on 30 years of heavy-ion physics and how recent measurements at the LHC and RHIC are closing in on the evolution of the quark–gluon plasma. Finally, we describe new forward detectors that from this year will allow the LHC to analyse photon–photon collisions in the ongoing search for new physics. -
MEMORIA IAC 2013 Pero No Todo Son Balances Positivos
MEMORIA 2013 “INSTITUTO DE ASTROFÍSICA DE CANARIAS” EDITA: Unidad de Comunicación y Cultura Científica (UC3) del Instituto de Astrofísica de Canarias (IAC) MAQUETA E IMPRIME: Printisur DEPÓSITO LEGAL: 7- PRESENTACIÓN Índice general 8- CONSORCIO PÚBLICO IAC 12- LOS OBSERVATORIOS DE CANARIAS 14- - Observatorio del Teide (OT) 15- - Observatorio del Roque de los Muchachos (ORM) 16- COMISIÓN PARA LA ASIGNACIÓN DE TIEMPO (CAT) 20- ACUERDOS 22- GRAN TELESCOPIO CANARIAS (GTC) 26- ÁREA DE INVESTIGACIÓN 29- - Estructura del Universo y Cosmología 47- - El Universo Local 80- - Física de las estrellas, Sistemas Planetarios y Medio Interestelar 107- - El Sol y el Sistema Solar 137- - Instrumentación y Espacio 161- - Otros 174- ÁREA DE INSTRUMENTACIÓN 174- - Ingeniería 188- - Producción 192- - Oficina de Proyectos Institucionales y Transferencia de Resultados de Investigación (OTRI) 201- ÁREA DE ENSEÑANZA 201- - Cursos de doctorado 203- - Seminarios científicos 207- - Coloquios 207- - Becas 209- - Tesis doctorales 209- - XXIV Escuela de Invierno: ”Aplicaciones astrofísicas de las lentes gravitatorias” 211- ADMINISTRACIÓN DE SERVICIOS GENERALES 211- - Instituto de Astrofísica 213- - Oficina Técnica para la Protección de la Calidad del Cielo (OTPC) 216- - Observatorio del Teide 216- - Observatorio del Roque de los Muchachos 217- - Centro de Astrofísica de la Palma 218- - Ejecución del Presupuesto 2013 219- GABINETE DE DIRECCIÓN 219- - Ediciones 220- - Carteles 220- - Comunicación y divulgación 232- - Web 234- - Visitas a las instalaciones del IAC 237- -
Monte Carlo Simulations of GRB Afterglows
ABSTRACT WARREN III, DONALD CAMERON. Monte Carlo Simulations of Efficient Shock Acceleration during the Afterglow Phase of Gamma-Ray Bursts. (Under the direction of Donald Ellison.) Gamma-ray bursts (GRBs) signal the violent death of massive stars, and are the brightest ex- plosions in the Universe since the Big Bang itself. Their afterglows are relics of the phenomenal amounts of energy released in the blast, and are visible from radio to X-ray wavelengths up to years after the event. The relativistic jet that is responsible for the GRB drives a strong shock into the circumburst medium that gives rise to the afterglow. The afterglows are thus intimately related to the GRB and its mechanism of origin, so studying the afterglow can offer a great deal of insight into the physics of these extraordinary objects. Afterglows are studied using their photon emission, which cannot be understood without a model for how they generate cosmic rays (CRs)—subatomic particles at energies much higher than the local plasma temperature. The current leading mechanism for converting the bulk energy of shock fronts into energetic particles is diffusive shock acceleration (DSA), in which charged particles gain energy by randomly scattering back and forth across the shock many times. DSA is well-understood in the non-relativistic case—where the shock speed is much lower than the speed of light—and thoroughly-studied (but with greater difficulty) in the relativistic case. At both limits of speed, DSA can be extremely efficient, placing significant amounts of energy into CRs. This must, in turn, affect the structure of the shock, as the presence of the CRs upstream of the shock acts to modify the incoming plasma flow. -
An Analysis of the Environment and Gas Content of Luminous Infrared Galaxies
Abstract Title of Dissertation: An Analysis of the Environment and Gas Content of Luminous Infrared Galaxies Bevin Ashley Zauderer, Doctor of Philosophy, 2010 Dissertation directed by: Professor Stuart N. Vogel Department of Astronomy Luminous and ultraluminous infrared galaxies (U/LIRGs) represent a population among the most extreme in our universe, emitting an extraordinary amount of energy at infrared wavelengths from dust heated by prolific star formation and/or an active galactic nucleus (AGN). We present three investigations of U/LIRGs to better understand their global environment, their interstellar medium properties, and their nuclear region where molecular gas feeds a starburst or AGN. To study the global environment, we compute the spatial cluster-galaxy amplitude, Bgc, for 76 z < 0.3 ULIRGs. We find the environment of ULIRGs is similar to galaxies in the field. Comparing our results with other galactic populations, we conclude that ULIRGs might be a phase in the lives of AGNs and QSOs, but not all moderate-luminosity QSOs necessarily pass through a ULIRG phase. To study the interstellar medium properties, we observe H I and other spectral lines in 77 U/LIRGs with the Arecibo telescope. We detect H I in emission or absorption in 61 of 77 galaxies, 52 being new detections. We compute the implied gas mass for galaxies with emission, and optical depths and column densities for the seven sources with absorption detections. To study the molecular gas in the nuclear region of LIRG Arp 193, sub-arcsecond scale angular resolution is required and a method of atmospheric phase correction imperative. We present results of a large experiment observing bright quasars to test the limitations of the Combined Array for Research in Millimeter Astronomy’s Paired Antenna Calibration System (C-PACS) for atmospheric phase correction.