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A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey

Open access
Kleinman, S. J., Harris, Hugh C., Eisenstein, Daniel J., Liebert, James, Nitta, Atsuko, Krzesiński, Jurek, Munn, Jeffrey A., Dahn, Conard C., Hawley, Suzanne L., Pier, Jeffrey R., Schmidt, Gary, Silvestri, Nicole M., Smith, J. Allyn, Szkody, Paula, Strauss, Michael A., Knapp, G. R., Collinge, Matthew J., Mukadam, A. S., Koester, D., Uomoto, Alan, Schlegel, D. J., Anderson, Scott F., Brinkmann, J., Lamb, D. Q., Schneider, Donald P., York, Donald G.·2004·The Astrophysical Journal

Abstract

We present the full spectroscopic white dwarf and hot subdwarf sample from the Sloan Digital Sky Survey (SDSS) first data release, DR1. We find 2551 white dwarf stars of various types, 240 hot subdwarf stars, and an additional 144 objects we have identified as uncertain white dwarf stars. Of the white dwarf stars, 1888 are nonmagnetic DA types and 171 are nonmagnetic DBs. The remaining (492) objects consist of all different types of white dwarf stars: DO, DQ, DC, DH, DZ, hybrid stars such as DAB, etc., and those with nondegenerate companions. We fit the DA and DB spectra with a grid of models to determine the T eff and log g for each object. For all objects, we provide coordinates, proper motions, SDSS photometric magnitudes, and enough information to retrieve the spectrum/image from the SDSS public database. This catalog nearly doubles the known sample of spectroscopically identified white dwarf stars. In the DR1 imaged area of the sky, we increase the known sample of white dwarf stars by a factor of 8.5. We also comment on several particularly interesting objects in this sample.

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Metadata

Authors
Kleinman, S. J., Harris, H. C., Eisenstein, D. J., Liebert, J., Nitta, A., Krzesiński, J., Munn, J. A., Dahn, C. C., Hawley, S. L., Pier, J. R., Schmidt, G., Silvestri, N. M., Smith, J. A., Szkody, P., Strauss, M. A., Knapp, G. R., Collinge, M. J., Mukadam, A. S., Koester, D., Uomoto, A., Schlegel, D. J., Anderson, S. F., Brinkmann, J., Lamb, D. Q., Schneider, D. P., & York, D. G.
Venue
The Astrophysical Journal
Published
2004-05-20
Volume
607
Issue
1
Pages
426-444
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2106691122
Cited by
240
References
4
FWCI
16.74
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey. https://app.cochat.ai/papers/10.1086/383464
The paper
Kleinman, S. J., Harris, H. C., Eisenstein, D. J., Liebert, J., Nitta, A., Krzesiński, J., Munn, J. A., Dahn, C. C., Hawley, S. L., Pier, J. R., Schmidt, G., Silvestri, N. M., Smith, J. A., Szkody, P., Strauss, M. A., Knapp, G. R., Collinge, M. J., Mukadam, A. S., Koester, D., . . . York, D. G. (2004). A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey. The Astrophysical Journal. https://doi.org/10.1086/383464

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.