... Tonight's Sky . ... The Magazine . News . Observing . ... Community . ... Supernova showered Earth with radioactive debris . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...
... Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... I have always loved supernovae, stars that explode. ... Late in the evening of February 23 rd /24 th * , 1987, an astronomer named Ian Shelton was taking images of the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way. ... Shortly thereafter, Ian Shelton developed the plates he had been taking of the LMC and immediately saw the new star. ...
... Seminar archive . ... Seminar archive 2013 19 July . ... Wide-field transient surveys and supernova shock breakout . ... Many transient surveys are performed intensively in these days and time-domain astronomy comes under the spotlight. ... The shock breakout is the bolometrically brightest phenomenon in supernovae but it is difficult to observe the shock breakout due to the short duration and X-ray/ultraviolet-peaked spectra. ... All seminars: . ...
... Future seminars . P a s t seminars . ... E.G. Berezhko (Yu.G.Shafer Institute of Cosmophysical Research and Aeronomy) . ... CR acceleration (generation) at the shocks, produced by supernova explosions, and the properties of nonthermal emission generated by CRs accelerated in supernova remnants are detaily discussed. ... Due to magnetic field amplification CR acceleration in supernova remnants provide the formation of the observed galactic CR spectrum up to the energy 10**17 eV. ...
... One of the objectives of this work is to derive radial distribution of supernova remnant surface densities in spiral galaxies. ... Other objectives include the comparison of the SNR radial distribution with the radial distribution of HII regions to look for any association between Type II progenitors and the SNRs and comparison of the SNR distribution to the spiral arm patterns. ... Knowing the positions of the SNRs, we can compare their distributions relative to HII regions and spiral arms. ...
... V.S. Beskin (Russia) "Axisymmetric Stationary Flows in Astrophysics" . S. Blinnikov (Russia) "Supernova Light and Ejecta" . ... D. Galtsov (Russia) "New string inspired models in gravitation and cosmology" . ... M. Khlopov (Russia) "Cosmoparticle physics: the physical cosmology of the XXI Century" . ... I.D. Novikov (Denmark-Russia) "Gamow and discovery of CMB" . ... R. Ruffini (Italy) " George Gamow and the URCA process: the case or URCA1 and URCA2" . ... J. Soda (Japan) "Braneworld Cosmology" . ...
... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...
Proposal Identification No.: P2112 Date Received: 2005 -Jun-01 06:14:14 Technical Page Proposal Type: General Category : Observation Category : Total Time Requested: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 7.25 Hours Deep Searches for Young Pulsars in Shell Supernova Remnants This is the conclusion, now that the ALFA receiver is available, of a pro ject to observe most shell supernova remnants (SNRs) known at distances of less than 7 kpc, in order ...
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Ссылки http://www.naic.edu/vscience/schedule/tpfiles/DonovantagP2112tp.pdf -- 47.6 Кб -- 10.08.2006 Похожие документы
... M65 Supernova 2013am . Finally got the opportunity to image M65 galaxy and the new supernova 2013am after dodging clouds with the wind dying down enough for a few hours to get good autoguiding. Seeing was not very good but had to try anyway. ... Image details: 212 minutes total; L 10 min exposure x 10; HaRGB 7.5 min x 15 binned. ... Image cropped to fit. The supernova is indicated by the cross-hairs. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>
Night of June 12, 2011 ====================== Supernova SN2011dh in M51 m51 _r_110612_bsdfam.fits This is a median-filtered sum of 4 images showing supernova SN2011dh TARGET = ' M51 ' / target EXPTIME = 2.0E+02 / exposure time (seconds) FILTER = ' (2) r (530-700) ' / filter DATE-OBS = '2011-06-13T03:27:14' / date of observation (UT) Night of March 19, 2009 ======================= ...
16 June 2013 IAU Electronic Telegram No.3563 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University ; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network SUPERNOVA 2013dj V. Lipunov, Sternberg ...
КАЛЕНДАРЬ КОНФЕРЕНЦИЙ First Announcement Workshop Presupernovae, Supernovae and Supernova Remnants Pushchino June 3 -- 7, 1996 The purpose of the Workshop is to give an opportunity for both astronomers and theoretical astrophysicists to meet together for a critical discussion of the hot problems of physics of supernovae and their impact on the surrounding medium from both the points of view --- observational and theoretical. ... Stellar remnants of supernovae (neutron stars, black holes). ...
... We have compiled the Catalogue of extragalactic supernovae using the GCVS card catalogue. ... Doubtful (?), or rejected (-) SN 8 A1 --- RemFlag [*] The '*' indicates a remark in sn_rem.dat 10- 19 A10 --- Gal Parent galaxy designation 21- 22 I2 h RAh Right Ascension 1950 of Parent galaxy 23- 24 I2 min RAm Right Ascension 1950 (minutes) 25- 28 F4.1 s RAs Right Ascension 1950 (seconds) 29 A1 --- DE- Declination 1950 (sign) 30- 31 I2 deg DEd Declination 1950 of Parent ...
... Observatory has four telescopes: . ... Zeiss-300 (D=300mm F=4500mm), visual . AVR-1 (D=200mm F=3000mm), visual . ... AZT-7 (D=200mm F=900mm), photometer . ... Zhujko Sergey V. Burlak Alexander N. Volod'ko Dmitry G. Pakhomov Yuriy V. Objects of research: . ... Variable stars . ... Moon . Covers stars by Moon . Field of research: . ... Questions and comments please mail to pakhomov@sai.msu.su . Yury V. Pakhomov . pakhomov@sai.msu.su . ...
... Официальное зеркало Astronomy picture of the day на сервере NASA ?? ... написанным профессиональным астрономом . ... Слухи о странной Вселенной . ... Во-первых, энергия, связанная с лямбда-членом, очень непохожа на другие известные составляющие Вселенной, во-вторых, наблюдения накладывают жесткие ограничения на возможные значения космологической постоянной , и, наконец, для объяснения ранее полученных данных вполне успешно применялись гораздо менее странные космологические модели без лямбда-члена. ...
... Astronomical Data Analysis Software and Systems X . ASP Conference Series, Vol. 238, 2001 . ... Cover Illustration : SAOImage ds9 image display tool shows an X-ray image of supernova remnant Cassiopeia A, as presented by Stephen S. Murray . SAOImage ds9 is an astronomical imaging and data visualization application that supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and color maps. ... adass-editors@head-cfa.harvard.edu ...
Astronomy Discussion Forums . Forums: . ... Discussion Forums | ... Post . ... My Theory . Forum List | ... Post Message | ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
Working session on Standard Candles Chair: F. Haberl · Definition of standard candles Sources with constant X-ray flux: white dwarfs isolated neutron stars supernova remnants cluster of galaxies · Scientific drivers for accurate absolute fluxes neutron star radii cosmology (e.g. total mass of galaxy clusters, Sunyaev Zeldovic effect) · Calibration purposes absolute flux ...
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Ссылки http://xmm.vilspa.esa.es/external/xmm_sw_cal/icwg/presentations/cal_standards_collection.pdf -- 41.9 Кб -- 15.06.2006 Похожие документы