... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

2014 May version . ... Green D. A., 2014 , Bulletin of the Astronomical Society of India, 42 , 47-58. ( .pdf , or arXiv.org:1409.0637 ) If you make use of the detailed version of the catalogue, then plaese also cite: . Green D. A., 2014, `A Catalogue of Galactic Supernova Remnants (2014 May version)' , Cavendish Laboratory, Cambridge, United Kingdom (available at "http://www.mrao.cam.ac.uk/surveys/snrs/" ). ... Copyright D. A. Green 2014. 25872nd access to this version of the catalogue. ...

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . All data here have been generated from evt1 files downloaded from the CXC archive. Currently available CALDB files have been used to convert evt1 to evt2 files. ... If the remnant is bright and the flares are small, then the UN-filtered evt2 files have been used to make images. If the remnant is dim and/or the flares large, then the images were made from the filtered evt2 files. ... Chandra Supernova Remnant Catalog . ...

... LDN 1622: Dark Nebula in Orion . ... The stellar explosion cataloged as supernova SN 2006gy shines in this wide-field image (left) of its host galaxy, NGC 1260, and expanded view (upper right panel) of the region surrounding the galaxy's core. The Snowflake Cluster versus the Cone Nebula . ... These patterns result from the tumultuous unrest that accompanies the formation of the open cluster of stars known as NGC 2264, the Snowflake cluster. ... Sunrise from the Surface of Gliese 581c . ...

... Initially SAI Supernova Catalogue was presented in the form of filebased system. ... The current version of SAI Supernova Catalogue presents data on supernovae together with data on their parent galaxies. ... The main source of data for the galaxies was LEDA database. ... In some cases our data were compared with the ones from the Asiago Supernova Catalogue and from List of Supernovae at Harvard-Smithsonian Center for Astrophysics, but the compilation of our Catalogue is carried out independently. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Comments: 4 pages, 1 figures, appears in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B. M. Gaensler, 200 . Дается короткий обзор наблюдений остатков сверхновых на спутнике ROSAT. ... astro-ph/0208498 . ... Открытие разрешенного остатка сверхновой в M31 с борта Chandra (The Discovery of a Spatially-Resolved Supernova Remnant in M31 with Chandra) . ... Нейтронные звезды в остатках сверхновых и снаружи (Neutron Stars in Supernova Remnants and Beyond) . ...

23rd of June 2015 . The supernova remnant Puppis A . ... Puppis A is the remnant of a supernova explosion which occurred several thousand years ago and now appears as a shell of ~1 deg diameter. This composite picture displays the radio continuum emission (red) obtained by combining Parkes and broadband ATCA observations, with a visible light (green) background from the Digital Sky Survey. ... today * ATNF | Parkes | ATCA | ...

Next: Upper Limits for Up: The Second EGRET Catalog Previous: Primary Catalog . As a result of the re-analysis of the Phase 1 data with the improved model of the diffuse gamma radiation, a number of the sources which appeared in the first EGRET catalog ([ Fichtel et al. 1994b ]) do not appear in this one (and conversely, some in the present catalog would have appeared in the first catalog using the improved model). ... These include 5 of the AGN listed in the first catalog. ...

This page is devoted to information on Supernova 1999eb in NGC 664 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... Normally, I wait until I get about 6 or so images before starting a web page for a specific SN, with 3 images and a spectrum the first day, I decided to get started while I had time. ...

... Fortunately, cold H I appears readily as H I self-absorption (HISA) shadows against warmer background H I . Though the HISA phenomenon was first observed in the 1950s, a detailed, systematic study of HISA clouds has only recently become possible with the advent of large-area synthesis surveys like the Canadian and VLA Galactic Plane Surveys. ... Stronger HISA appears concentrated in discrete cloud complexes associated with spiral arm structure. ...

Next: Evolution of Supernova Explosion Up: Gravitational Waves from Coalescing Previous: Gravitational Waves from Coalescing . The stochastic binary background produced by nearby galaxies from Tully's catalog at the frequency  Hz is shown in Figure  49 in terms of average strain metric amplitude per square degree in a given direction ( l , b ) on the sky: . where the sum is calculated over all sources in the given square degree of the sky; we assumed . ...