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- SN_2008D abstract "SN 2008D is a supernova detected with NASA's Swift X-ray telescope. The explosion of the supernova precursor star, in the spiral galaxy NGC 2770 (88 million light years away (27 Mpc), was detected on January 9, 2008, by Carnegie-Princeton fellows Alicia Soderberg and Edo Berger, and Albert Kong and Tom Maccarone independently using Swift. They alerted eight other orbiting and ground-based observatories to record the event. This was the first time that astronomers have ever observed a supernova as it occurred. The supernova was determined to be of Type Ibc. The velocities measured from SN2008D indicated expansion rates of more than 10,000 kilometers per second. The explosion was off-center, with gas on one side of the explosion moving outward faster than on the other. This was the first time the X-ray emission pattern of a supernova (which only lasted about five minutes) was captured at the moment of its birth. Now that it is known what X-ray pattern to look for, the next generation of X-ray satellites is expected to find hundreds of supernovae every year exactly when they explode, which will allow searches for neutrino and gravitational wave bursts that are predicted to accompany the collapse of stellar cores and the birth of neutron stars."Supernovae are the explosions of massive stars—stars more than 8 times the mass of the Sun—whose cores run out of nuclear fuel and collapse in on themselves to form a neutron star or a black hole. In the process they launch a powerful shock wave that blows up the star. Until now, observations of these objects have been of the aftermath, typically several days after the initial explosion."".
- SN_2008D thumbnail Sn2008hdani.gif?width=300.
- SN_2008D wikiPageID "17550278".
- SN_2008D wikiPageRevisionID "600816925".
- SN_2008D bV "Unknown".
- SN_2008D caption "X-ray and visible light images of SN 2008D , and SN 2007uy .".
- SN_2008D constellation Lynx_(constellation).
- SN_2008D discovery "2008-01-09".
- SN_2008D epoch "J2000".
- SN_2008D gal "191.5472".
- SN_2008D hasPhotoCollection SN_2008D.
- SN_2008D host NGC_2770.
- SN_2008D name "SN 2008D".
- SN_2008D notes "First supernova detected by the X-rays released very early on in its formation.".
- SN_2008D progenitor "Unknown".
- SN_2008D progenitorType "Unknown".
- SN_2008D type Type_Ib_and_Ic_supernovae.
- SN_2008D subject Category:Astronomical_objects_discovered_in_2008.
- SN_2008D subject Category:Extragalactic_astronomy.
- SN_2008D subject Category:Supernovae.
- SN_2008D type CelestialBody.
- SN_2008D type Star.
- SN_2008D type PhysicalBody.
- SN_2008D comment "SN 2008D is a supernova detected with NASA's Swift X-ray telescope. The explosion of the supernova precursor star, in the spiral galaxy NGC 2770 (88 million light years away (27 Mpc), was detected on January 9, 2008, by Carnegie-Princeton fellows Alicia Soderberg and Edo Berger, and Albert Kong and Tom Maccarone independently using Swift. They alerted eight other orbiting and ground-based observatories to record the event.".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "SN 2008D".
- SN_2008D label "م أ 2008 دي".
- SN_2008D sameAs SN_2008D.
- SN_2008D sameAs SN_2008D.
- SN_2008D sameAs SN_2008D.
- SN_2008D sameAs 초신성_2008D.
- SN_2008D sameAs SN_2008D.
- SN_2008D sameAs m.0462m36.
- SN_2008D sameAs Q1082905.
- SN_2008D sameAs Q1082905.
- SN_2008D wasDerivedFrom SN_2008D?oldid=600816925.
- SN_2008D depiction Sn2008hdani.gif.
- SN_2008D isPrimaryTopicOf SN_2008D.