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dc.contributor.authorLuo, A.L.
dc.contributor.authorOswalt, Terry D.
dc.contributor.authorZhao, J.K.
dc.contributor.authorZhao, G.
dc.date.accessioned2013-10-08T18:36:26Z
dc.date.available2013-10-08T18:36:26Z
dc.date.issued2013-06
dc.identifier.citationZhao, J. K., Luo, A. L., Oswalt, T. D., & Zhao, G. (2013). 70 da white dwarfs identified in lamost pilot survey. Astronomical Journal, 145(6)en_US
dc.identifier.urihttp://hdl.handle.net/11141/82
dc.description.abstractWe present a spectroscopically identified catalog of 70 DA white dwarfs (WDs) from the LAMOST pilot survey. Thirty-five are found to be new identifications after cross-correlation with the Eisenstein et al. and Villanova catalogs. The effective temperature and gravity of these WDs are estimated by Balmer lines fitting. Most of them are hot WDs. The cooling times and masses of these WDs are estimated by interpolation in theoretical evolution tracks. The peak of the mass distribution is found to be ∼0.6 M⊙, which is consistent with prior work in the literature. The distances of these WDs are estimated using the method of synthetic spectral distances. All of these WDs are found to be in the Galactic disk from our analysis of space motions. Our sample supports the expectation that WDs with high mass are concentrated near the plane of the Galactic disk.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is available in accordance with the publisher's policy. It may subject to U.S. copyright law.en_US
dc.rights.urihttp://aas.org/publications/aas-copyright-policyen_US
dc.title70 DA white dwarfs identified in LAMOST pilot surveyen_US
dc.typeArticleen_US
dc.identifier.doi10.1088/0004-6256/145/6/169


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