Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/V445_Puppis> ?p ?o }
Showing triples 1 to 82 of
82
with 100 triples per page.
- V445_Puppis abstract "V445 Puppis was a nova in the constellation Puppis. It was discovered by KazuyoshiKanatsu of Matsue, Shimane, Japan, who recorded a peak magnitude of 8.6 on November 28, 2000. The nova was reported by Taichi Kato of Kyoto University in the International Astronomical Union circular 7552, issued on December 30, 2000. The location of this nova coincided with a magnitude 13.1 star that had been photographed in 1967. The proper motion of this star was measured as -4.7 mas/yr in right ascension and +6.4 mas/yr in declination, with a standard error of 4 mas/yr.Examination of the optical spectrum of this nova showed absorption lines of calcium (Ca I), sodium (Na I) and singly ionized iron (Fe II). The initial spectrum was deficient in hydrogen and did not match those typical of other nova types. The infrared spectrum measured on January 31 showed a featureless continuum that decreased with increasing wavelength. This is consistent with emission from heated dust and suggests that the star is a recurrent nova that has generated dust during prior outbursts. By 2004, the object had faded and the dust emission had disappeared.The deficient level of hydrogen in this outburst, along with an enrichment of helium and carbon, and a higher level of ionization, suggested that it was the first observed instance of a helium nova. This is theorized to occur when a white dwarf star predominantly accretes helium (rather than hydrogen) from an orbiting companion. When sufficient helium has accumulated along a shell on the surface of the white dwarf, a run-away thermonuclear explosion results in a nova outburst. Hence, V445 Puppis may belong to a binary star system and be surrounded by an accretion disk of matter drawn from the companion star.At present, the system is being obscured by an optically thick cloud of dust. A bi-polar outflow of material has been observed moving away from the system at a velocity of 6,720 ± 650 km s−1. Knots of material within this outflow are moving at velocities of up to 8,450 ± 570 km s−1. Based upon the expansion parallax for this outflow, the system lies at a distance of 8.2 ± 0.5 kpc.The white dwarf in the V445 Puppis system has an estimated mass of more than 1.3 times the mass of the Sun, and this mass is increasing because of recurring helium shell flashes from accreted material. As the mass of the white dwarf approaches the Chandrasekhar limit of about 1.38 solar masses, it will likely explode as a Type Ia supernova.".
- V445_Puppis thumbnail V445-Puppis.jpg?width=300.
- V445_Puppis wikiPageID "26401258".
- V445_Puppis wikiPageLength "6525".
- V445_Puppis wikiPageOutDegree "31".
- V445_Puppis wikiPageRevisionID "660791782".
- V445_Puppis wikiPageWikiLink Absorption_line.
- V445_Puppis wikiPageWikiLink Binary_star.
- V445_Puppis wikiPageWikiLink Calcium.
- V445_Puppis wikiPageWikiLink Category:Novae.
- V445_Puppis wikiPageWikiLink Category:Objects_named_with_variable_star_designations.
- V445_Puppis wikiPageWikiLink Category:Puppis_(constellation).
- V445_Puppis wikiPageWikiLink Chandrasekhar_limit.
- V445_Puppis wikiPageWikiLink Constellation.
- V445_Puppis wikiPageWikiLink Declination.
- V445_Puppis wikiPageWikiLink ESO.
- V445_Puppis wikiPageWikiLink European_Southern_Observatory.
- V445_Puppis wikiPageWikiLink Helium_nova.
- V445_Puppis wikiPageWikiLink Infrared.
- V445_Puppis wikiPageWikiLink International_Astronomical_Union.
- V445_Puppis wikiPageWikiLink Iron.
- V445_Puppis wikiPageWikiLink Japan.
- V445_Puppis wikiPageWikiLink Kyoto_University.
- V445_Puppis wikiPageWikiLink Matsue.
- V445_Puppis wikiPageWikiLink Matsue,_Shimane.
- V445_Puppis wikiPageWikiLink Minute_and_second_of_arc.
- V445_Puppis wikiPageWikiLink Minute_of_arc.
- V445_Puppis wikiPageWikiLink Nova.
- V445_Puppis wikiPageWikiLink Parallax.
- V445_Puppis wikiPageWikiLink Proper_motion.
- V445_Puppis wikiPageWikiLink Puppis.
- V445_Puppis wikiPageWikiLink Right_ascension.
- V445_Puppis wikiPageWikiLink Sodium.
- V445_Puppis wikiPageWikiLink Solar_mass.
- V445_Puppis wikiPageWikiLink Spectral_line.
- V445_Puppis wikiPageWikiLink Type_Ia_supernova.
- V445_Puppis wikiPageWikiLink Wavelength.
- V445_Puppis wikiPageWikiLink White_dwarf.
- V445_Puppis wikiPageWikiLink File:V445-Puppis.jpg.
- V445_Puppis wikiPageWikiLinkText "V445 Puppis".
- V445_Puppis caption "Expansion of the bipolar shell ejected from V445 Puppis, from 2005 to 2007".
- V445_Puppis constell Puppis.
- V445_Puppis credit "ESO/P.A. Woudt".
- V445_Puppis distLy "27000".
- V445_Puppis distPc "8200".
- V445_Puppis epoch "J2000".
- V445_Puppis hasPhotoCollection V445_Puppis.
- V445_Puppis wikiPageUsesTemplate Template:Novae.
- V445_Puppis wikiPageUsesTemplate Template:Reflist.
- V445_Puppis wikiPageUsesTemplate Template:Sky.
- V445_Puppis wikiPageUsesTemplate Template:Starbox_astrometry.
- V445_Puppis wikiPageUsesTemplate Template:Starbox_begin.
- V445_Puppis wikiPageUsesTemplate Template:Starbox_end.
- V445_Puppis wikiPageUsesTemplate Template:Starbox_image.
- V445_Puppis wikiPageUsesTemplate Template:Starbox_observe.
- V445_Puppis wikiPageUsesTemplate Template:Stars_of_Puppis.
- V445_Puppis subject Category:Novae.
- V445_Puppis subject Category:Objects_named_with_variable_star_designations.
- V445_Puppis subject Category:Puppis_(constellation).
- V445_Puppis hypernym Nova.
- V445_Puppis type CelestialBody.
- V445_Puppis type Event.
- V445_Puppis type Place.
- V445_Puppis type Star.
- V445_Puppis type Event.
- V445_Puppis type Location.
- V445_Puppis type Place.
- V445_Puppis type Thing.
- V445_Puppis comment "V445 Puppis was a nova in the constellation Puppis. It was discovered by KazuyoshiKanatsu of Matsue, Shimane, Japan, who recorded a peak magnitude of 8.6 on November 28, 2000. The nova was reported by Taichi Kato of Kyoto University in the International Astronomical Union circular 7552, issued on December 30, 2000. The location of this nova coincided with a magnitude 13.1 star that had been photographed in 1967.".
- V445_Puppis label "V445 Puppis".
- V445_Puppis sameAs وی۴۴۵_کشتیدم.
- V445_Puppis sameAs V445_Puppis.
- V445_Puppis sameAs V445_Puppis.
- V445_Puppis sameAs m.0bbx91c.
- V445_Puppis sameAs V445_Puppis.
- V445_Puppis sameAs Q2023548.
- V445_Puppis sameAs Q2023548.
- V445_Puppis sameAs 船尾座V445.
- V445_Puppis wasDerivedFrom V445_Puppis?oldid=660791782.
- V445_Puppis depiction V445-Puppis.jpg.
- V445_Puppis isPrimaryTopicOf V445_Puppis.
- V445_Puppis name "V445 Puppis".