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dc.contributor.authorKawka, Adéla
dc.contributor.authorVennes, Stéphane
dc.contributor.authorOswalt, Terry D.
dc.contributor.authorSmith, J. Allyn
dc.contributor.authorSilvestri, Nicole M.
dc.date.accessioned2015-04-10T15:26:09Z
dc.date.available2015-04-10T15:26:09Z
dc.date.issued2006-03-08
dc.identifier.citationKawka, A., Oswalt, T.D., Silvestri, N.M., Smith, J.A., & Vennes, S. (2006) LP 400-22, a Very Low Mass and High-Velocity White Dwarf. The Astrophysical Journal Letters, 643(2), L123.en_US
dc.identifier.urihttp://hdl.handle.net/11141/549
dc.description.abstractWe report the identification of LP 400-22 (WD 2234+222) as a very low mass and high-velocity white dwarf. The ultraviolet GALEX and optical photometric colors and a spectral line analysis of LP 400-22 show this star to have an effective temperature of 11,080 ± 140 K and a surface gravity of log g = 6.32 ± 0.08. Therefore, this is a helium-core white dwarf with a mass of 0.17 M⊙. The tangential velocity of this white dwarf is 414 ± 43 km s-1, making it one of the fastest moving white dwarfs known. We discuss probable evolutionary scenarios for this remarkable object.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is available in accordance with the publisher's policy. It may be subject to U.S. Copyright Law.en_US
dc.rights.urihttp://aas.org/publications/aas-copyright-policyen_US
dc.titleLP 400-22, a Very Low Mass and High-Velocity White Dwarfen_US
dc.typeArticleen_US
dc.identifier.doi10.1086/505143


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