... 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. ...

... 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. ...

... 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: . ...

. -!> 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. -!>

... Dr. Stella Kafka . Thursday, Dec 10, 2015 at 8:00 PM . Type I Supernovae are massive stellar explosions that result from an interaction between a white dwarf and a companion whose mass it accrues in a close binary system. When the white dwarf’s mass reaches 1.4 that of the sun, the supernova occurs. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

HI envelopes around the Supernova remnants . ... From 24 investigated Supernova remnants 12 the HI envelopes with radial motions are found. The example of an envelope around the Supernovae remnant W28 is shown on figure 1. Mean velosity of radial motion is 12.9 km/s, thickness of envelopes is 0.3 of radius, mean HI mass is 5.6E+4 mass of the Sun, mean kinetic energy is 10 50 ergs. ... Distribution of HI emission around the Supernovae remnant W28. The details shows an extending envelope. ...

... Future seminars . ... Core collapse supernovae " . ... Numerical simulations of the bounce shock and neutrino driven supernova mechanisms either do not lead to the explosion or the explosion energy is too small. ... In the talk we plan to review the results of our researches of MagnetoRotaional(MR) supernova mechanism in 2D approach. In MR supernova mechanism the rotational energy of the differentially rotating presupernova is partially transformed to the explosion energy by magnetic field. ...

The merging galaxy Arp 220 is the prototypical luminous infrared galaxy. ... In 1996, one of the then largest VLBI experiments was conducted on Arp 220, using the compact OH maser peak as a convenient phase reference. This permitted continuum imaging of the galaxy with high sensitivity, revealing the existence of roughly a dozen unresolved sub-mJy point sources scattered across the nuclear region of the galaxy. ... The nuclear region of Arp 220 imaged with continuum VLBI at 18 cm. ...

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 ...

... 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" . ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

. Last updated: January, 2005.

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 ======================= ...

... Solar Data: f.e. X-ray . Night Sky Live . ... Heavens-Above: Sky chart, Satellites, Iridiums and astronomical objects For Moscow For SAO Baksan . ... ESO-MIDAS page . ... Tutorials for Astronomy . ... Asteroid and Comet Hazard . ... Observable Comets: This page lists links to orbital elements and ephemerides of (potentially) observable comets. ... Leonid page - a lot of information for years Comets and Meteor Showers . The American Meteor Society . ... North American Meteor Network Home Page . ...

Next: Large Scale Clustering in the Universe - A Package of Codes . ... The discovery of a correlation between the light curve shape and intrinsic brightness has made Type Ia supernovae exceptionally accurate distance indicators out to cosmologically interesting redshifts. ... But supernovae are relatively rare events. ... Type Ia supernovae make excellent distance indicators, so these events at high redshift can be used to map out the history of the expanding Universe. ...

... 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. ...