Astronomy Picture of the Day . ... It is now understood that a spectacular supernova explosion - the detonation of a massive star whose remains are now visible as the Crab Nebula - was responsible for the apparition. ... Using a stunning series of visible light images taken with the Hubble Space Telescope (HST) , astronomers have recently discovered spectacular pulsar powered motions within the Crab nebula. ... Publications with keywords: pulsar . ... Runaway Star . ... Crab Nebula Mosaic from HST . ...

... May 31, 1996 . The Pulsar Powered Crab . Credit: J. Hester and P. Scowen ( ASU ), NASA . ... It is now understood that a spectacular supernova explosion - the detonation of a massive star whose remains are now visible as the Crab Nebula - was responsible for the apparition. ... Using a stunning series of visible light images taken with the Hubble Space Telescope (HST) , astronomers have recently discovered spectacular pulsar powered motions within the Crab nebula. ... About APOD | ...

... September 5, 1998 . The Pulsar Powered Crab . Credit: J. Hester and P. Scowen ( ASU ), NASA . ... Using a stunning series of visible light images taken with the Hubble Space Telescope (HST) , astronomers have discovered spectacular pulsar powered motions within the Crab nebula. Highlights of this HST Crab "movie" show wisps of material moving away from the pulsar at half the speed of light, a scintillating halo, and an intense knot of emission dancing, sprite-like, above the pulsar's pole. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 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 . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... Vink, J.S., de Koter, A. 2005, Astronomy Astrophysics 442, 587 - 596 . ... Vink, J.S., Harries, T.J., Drew, J.E. 2005, Astronomy Astrophysics 430, 213 . ... Vink, J.S., de Koter A. 2002, Astronomy Astrophysics, 393, 543 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 2001, Astronomy Astrophysics, 369, 574--588 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 2000, Astronomy Astrophysics, 362, 295--309 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 1999, Astronomy Astrophysics, 350, 181--196...

... About ATNF overview . ... Both are consistent with earlier estimates, computed for the population of optically selected galaxies. This consistency occurs because, although the distribution of optical central surface brightnesses among galaxies is flat, we fail to find a population of galaxies with central surface brightnesses fainter than 24б  B - , even though there is no observational selection against them. Keywords: Galaxies: Luminosity Function, Mass Function; Surveys . ...

... 1) A Multiwavelength Study of Tadpole Galaxies in the Hubble Ultra Deep Field, Straughn, A., et al. (including S. Ravindranath), 2015, ApJ, 814, 97. 2) The Rate of Core Collapse Supernovae to Redshift 2.5 from CANDELS and CLASH Supernova Surveys, Strolger, L., et al. (including S. Ravindranath), 2015, ApJ, 813, 93. ... 18) "Resolved Galaxies in the Hubble Ultra Deep Field: Star Formation in Disks at High Redshift", Elmegreen, D.M., Elmegreen, B.G., Ravindranath, S., Coe, D.A., 2007, ApJ, 658, 763. ...

... They cover a period of 4 days in which the Supernova continues to rise in brightness (what astronomers call magntiude). ... First Image Taken on March 11 at 8:22 UT. Second Image Taken on March 12 at 8:52 UT. ... The supernova is the same brightness as in the previous image taken 2 hours ago . ... This image, taken 24 hours after the previous image, shows the supernova to be another 0.21mag (or about 25%) brighter. ... Hopefully the images do show that the brightness of the Supernova is changing. ...

... It was the fiery death of a massive star, one of the most violent events in nature. We call these explosions 'supernovae', and this one was bright enough to outshine the rest of its galaxy combined! This stunning view of the nearby galaxy was captured by astronomers studying the after-effects of the explosion. ... This galaxy is known as a spiral galaxy , like the Milky Way. Named so because of the loosely wound spiral-shape arms that can be seen wrapping around the bright galaxy centre. ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

Bright Supernova - Archives On these pages you will find references to Supernovae which have faded into oblivion. ... Finally, in 1999, when I took over the International Supernova Network's Latest Supernovae page I retitled the main page "Latest Supernovae", BUT, it's the "Latest Supernovae" page of the "Bright Supernovae" pages which are also sub-pages of ISN. ... Brightest supernova in 2005 . ... Brightest supernova in 2002 . ... Brightest supernova in 2000 . ... Brightest supernova in 1999 . ...

... For more distant stars we must use other techniques. ... Hence if we see a distant galaxy and can pick out any cepheids lying within it, we can calculate its distance. ... Here then is another method to gauge the size of the Universe and there are yet more. volume at high enough temperature a nuclear fusion reaction sweeps across the white dwarf's surface and eventually we will see a spectacularly bright new star (hence nova) in our skies. ... Why is this relevant to the size of the Universe? ...

... Research . ... A rare hybrid morphology radio galaxy . ... In this project we will be able to investigate the environmental effect on star formation and galaxy evolution in individual galaxies falling into the cluster through radio observations of active galactic nuclei (AGN). Current models of galaxy evolution regulate the star formation rates within the simulated galaxies by invoking radio-mode feedback from AGN. ... Julie.Banfield@anu.edu.au . ...

... Contacts . 2008: . Detection of two new LBV stars. In two exterior galaxies new luminous blue variable stars (LBV) were observed. ... Fast deceleration of rotation of a magnetic star with a strong field HD 37776. 31 years of observations of the magnetic star HD 37776 resulted in detecting deceleration of its axial rotation for 17.7 0.7s (dP/P = 4.0x10 -6 per year). ... It is the first case of magnetic deceleration detection for a chemically peculiar star on the main sequence. ... Archive . ...

... Centaurus A : 15,000,000 light years away, in the constellation Centaurus, the closest AG to Earth . ... Astronomers think that the reason for the unusual shape of this galaxy is because hundreds of millions of years ago two galaxies, one dusty spiral and one bright ellipictal, collided causing a massive black hole in the middle and bright emmision of light. ... Andromeda galaxy: 2.8 million light years away, closest spiral galaxy to earth, farthest object one can see without a telescope. ...

home publications > mercury . ... Publications of the ASP (PASP) . ... Exploring Invisible Skies . ... One of the tools these students are using?a radio telescope?explores an invisible part of the electromagnetic spectrum, radio waves. ... From listening to music on the radio to talking on our cell phones, radio waves are the means used to get information across large distances. ... Radio waves also give us information about the Universe complementing information obtained at other wavelengths. ...

... Recherche dans le site : . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Un jet de particules de 37 ann†йes-lumi†иre dans la Car†иne . ... Situ†й †а 23 000 ann†йes-lumi†иre dans la constellation australe de la Car†иne, il est produit par une †йtoile †а neutrons en rotation (un pulsar) fon†зant †а plus 3 millions de km/h dans l'espace interstellaire. ... Etat du ciel . ...

... Most Important Journals . Less Popular Astronomical Journals . Physics . Space, Selectial mechanics, .. Russian Journals . ... Astrophysics & Astronomy . ... Astronomical Journal . ... New Astronomy . ... Publications of the Astronomical Society of the Pacific . ... STScI News . Space Telescope Insitute Newsletter . ... Journal of Astronomical Data . ... Journal of High-Energy Physics (mirror in CERN ) [astro, grav, hi-energy .. ... Journal of Experimental and Theoretical Physics . ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... Astrophysics Group . ... AMI Science . ... Observations of galaxy clusters are central to the AMI science programme. The AMI Small Array is used to observe already-known clusters with high-sensitivity and resolution, allowing us to extract detailed information about individual clusters and to build up statistics about the cluster population. ... Observing galaxy clusters at 15 GHz is tricky because of the contamination from foreground radio sources, which is where the Large Array comes in! ...