Matches in DBpedia 2014 for { <http://dbpedia.org/resource/SN_2008ha> ?p ?o. }
Showing items 1 to 30 of
30
with 100 items per page.
- SN_2008ha abstract "SN 2008ha was a type Ia supernova which was first observed around November 7, 2008 in the galaxy UGC 12682, which lies in the constellation Pegasus at a distance of about 21.3 megaparsecs (69 Mly) from Earth.SN 2008ha was unusual in several ways: with an absolute V band magnitude of −14.2 it is one of the faintest supernovae ever observed; its host galaxy type very rarely produces supernovae. Another unusual feature of SN 2008ha was its low expansion velocity of only ~2000 km/s at maximum brightness, which indicates a very small kinetic energy released in the explosion. For comparison, SN 2002cx expanded at a velocity of ~5000 km/s whereas typicalSN Ia expand at around ~10,000 km/s. The low expansion velocity of SN2008ha resulted in relatively small Doppler broadening of spectral emission lines and this led to higher quality data.The supernova was studied with ultraviolet, optical, and near-infrared photometry as well as optical spectra, using the Magellan telescopes in Chile, the MMT telescope in Arizona, the Gemini and Keck telescopes in Hawaii, and NASA's Swift satellite. Spectroscopically, SN 2008ha was identified as a SN 2002cx-type, a peculiar sub-class of SN Ia. SN 2008ha had a brightness period of only 10 days, which is significantly shorter than that of other SN 2002cx-like objects (~15 days) or normal Ia supernovas (~20 days). From the peak luminosity and the brightness time it was estimated that SN 2008ha generated (3.0 ± 0.9) × 10−3 M⊙ of 56Ni, had a kinetic energy of 2 × 1048 ergs, and ejected 0.15 M⊙ of material.SN 2008ha was co-discovered by Caroline Moore, Jack Newton and Tim Puckett, members of the Puckett Observatory World Supernova Search.".
- SN_2008ha thumbnail Supernova_2008_ha.jpg?width=300.
- SN_2008ha wikiPageExternalLink 3028372426.
- SN_2008ha wikiPageID "23233653".
- SN_2008ha wikiPageRevisionID "605073794".
- SN_2008ha constellation Pegasus_(constellation).
- SN_2008ha dec "+18°13'35"".
- SN_2008ha discovery "2008-11-07".
- SN_2008ha epoch Epoch_(astronomy).
- SN_2008ha gal "98.5631".
- SN_2008ha hasPhotoCollection SN_2008ha.
- SN_2008ha host UGC_12682.
- SN_2008ha name "SN 2008ha".
- SN_2008ha ra "84892.0".
- SN_2008ha type SN_2002cx.
- SN_2008ha type Type_Ia_supernova.
- SN_2008ha subject Category:Supernovae.
- SN_2008ha comment "SN 2008ha was a type Ia supernova which was first observed around November 7, 2008 in the galaxy UGC 12682, which lies in the constellation Pegasus at a distance of about 21.3 megaparsecs (69 Mly) from Earth.SN 2008ha was unusual in several ways: with an absolute V band magnitude of −14.2 it is one of the faintest supernovae ever observed; its host galaxy type very rarely produces supernovae.".
- SN_2008ha label "SN 2008ha".
- SN_2008ha label "SN 2008ha".
- SN_2008ha label "SN 2008ha".
- SN_2008ha label "SN 2008ha".
- SN_2008ha label "م أ 2008 إتش إيه".
- SN_2008ha sameAs SN_2008ha.
- SN_2008ha sameAs m.065yx4r.
- SN_2008ha sameAs Q2743690.
- SN_2008ha sameAs Q2743690.
- SN_2008ha wasDerivedFrom SN_2008ha?oldid=605073794.
- SN_2008ha depiction Supernova_2008_ha.jpg.
- SN_2008ha isPrimaryTopicOf SN_2008ha.
