The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Spectroscopic Properties of Cool Stars in the Sloan Digital Sky Survey: An Analysis of Magnetic Activity and a Search for Subdwarfs
Open accessAbstract
We present a spectroscopic analysis of nearly 8000 late-type dwarfs in the Sloan Digital Sky Survey. Using the Hα emission line as an activity indicator, we investigate the fraction of active stars as a function of spectral type and find a peak near type M8, confirming previous results. In contrast to past findings, we find that not all M7–M8 stars are active. We show that this may be a selection effect of the distance distributions of previous samples, since the active stars appear to be concentrated near the Galactic plane. We also examine the activity strength (ratio of the luminosity emitted in Hα to the bolometric luminosity) for each star and find that the mean activity strength is constant over the range M0–M5 and declines at later types. The decline begins at a slightly earlier spectral type than previously found. We explore the effect that activity has on the broadband photometric colors and find no significant differences between active and inactive stars. We also carry out a search for subdwarfs using spectroscopic metallicity indicators and find 60 subdwarf candidates. Several of these candidates are near the extreme subdwarf boundary. The spectroscopic subdwarf candidates are redder by ∼0.2 mag in g - r compared with disk dwarfs at the same r - i color.
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Cites
The Sloan Digital Sky Survey: Technical Summary
York, D. G., Adelman, J., Anderson, Jr., Anderson, S. F., Annis, J., Bahcall, N. A., Bakken, J. A., Barkhouser, R., Bastian, S., Berman, E., et al. (2000) · The Astronomical Journal · doi:10.1086/301513 · Cited by 10,366
Self-citationThe Sloan Digital Sky Survey Photometric System
Fukugita, M., Ichikawa, T., Gunn, J. E., Doi, M., Shimasaku, K., & Schneider, D. P. (1996) · The Astronomical Journal · doi:10.1086/117915 · Cited by 3,033
Sloan Digital Sky Survey: Early Data Release
Stoughton, C., Lupton, R. H., Bernardi, M., Blanton, M. R., Burles, S., Castander, F. J., Connolly, A. J., Eisenstein, D. J., Frieman, J. A., Hennessy, G. S., et al. (2002) · The Astronomical Journal · doi:10.1086/324741 · Cited by 2,390
Self-citationThe Sloan Digital Sky Survey Photometric Camera
Gunn, J. E., Carr, M., Rockosi, C., Sekiguchi, M., Berry, K., Elms, B., de Haas, E., Ivezić, Ž., Knapp, G., Lupton, R., et al. (1998) · The Astronomical Journal · doi:10.1086/300645 · Cited by 1,692
Self-citationSmith, J. A., Tucker, D. L., Kent, S., Richmond, M. W., Fukugita, M., Ichikawa, T., Ichikawa, S.-I., Jorgensen, A. M., Uomoto, A., Gunn, J. E., et al. (2002) · The Astronomical Journal · doi:10.1086/339311 · Cited by 1,621
Self-citationKirkpatrick, J. D., Reid, I. N., Liebert, J., Cutri, R. M., Nelson, B., Beichman, C. A., Dahn, C. C., Monet, D. G., Gizis, J. E., & Skrutskie, M. F. (1999) · The Astrophysical Journal · doi:10.1086/307414 · Cited by 992
The First Data Release of the Sloan Digital Sky Survey
Abazajian, K., Adelman-McCarthy, J. K., Ageros, M. A., Allam, S. S., Anderson, S. F., Annis, J., Bahcall, N. A., Baldry, I. K., Bastian, S., Berlind, A., et al. (2003) · The Astronomical Journal · doi:10.1086/378165 · Cited by 967
Self-citationAstrometric Calibration of the Sloan Digital Sky Survey
Pier, J. R., Munn, J. A., Hindsley, R. B., Hennessy, G. S., Kent, S. M., Lupton, R. H., & Ivezić, Ž. (2003) · The Astronomical Journal · doi:10.1086/346138 · Cited by 908
Self-citationA Photometricity and Extinction Monitor at the Apache Point Observatory
Hogg, D. W., Finkbeiner, D. P., Schlegel, D. J., & Gunn, J. E. (2001) · The Astronomical Journal · doi:10.1086/323103 · Cited by 744
Astrometric Calibration of the Sloan Digital Sky SurveyPreprint
Pier, J. R., Munn, J. A., Hindsley, R. B., Hennessy, G. S., Kent, S. M., Lupton, R. H., & Ivezić, ˇ. Z. (2002) · Cited by 694
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Cited by
West, A. A., Hawley, S. L., Bochanski, J. J., Covey, K. R., Reid, I. N., Dhital, S., Hilton, E. J., & Masuda, M. (2008) · The Astronomical Journal · doi:10.1088/0004-6256/135/3/785 · Cited by 600
Self-citationBiosignatures from Earth-Like Planets Around M Dwarfs
Segura, A., Kasting, J. F., Meadows, V., Cohen, M., Scalo, J., Crisp, D., Butler, R. A. H., & Tinetti, G. (2005) · Astrobiology · doi:10.1089/ast.2005.5.706 · Cited by 524
THE Hα EMISSION OF NEARBY M DWARFS AND ITS RELATION TO STELLAR ROTATION
Newton, E. R., Irwin, J., Charbonneau, D., Berlind, P., Calkins, M. L., & Mink, J. (2017) · The Astrophysical Journal · doi:10.3847/1538-4357/834/1/85 · Cited by 359
A Reappraisal of The Habitability of Planets around M Dwarf Stars
Tarter, J. C., Backus, P. R., Mancinelli, R. L., Aurnou, J. M., Backman, D. E., Basri, G. S., Boss, A. P., Clarke, A., Deming, D., Doyle, L. R., et al. (2007) · Astrobiology · doi:10.1089/ast.2006.0124 · Cited by 340
Self-citationSimulations of Dynamo Action in Fully Convective Stars
Browning, M. K. (2008) · The Astrophysical Journal · doi:10.1086/527432 · Cited by 338
Metadata
- Authors
- West, A. A., Hawley, S. L., Walkowicz, L. M., Covey, K. R., Silvestri, N. M., Raymond, S. N., Harris, H. C., Munn, J. A., McGehee, P. M., Ivezić, Ž., & Brinkmann, J.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2004-07
- Volume
- 128
- Issue
- 1
- Pages
- 426-436
- ISSN
- 0004-6256 (ISSN-L)
- 1538-3881
- OpenAlex
- W1987581036
- Cited by
- 335
- References
- 34
- FWCI
- 12.60
- Type
- journal article
- Language
- en
- Open access
- bronze
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- West, A. A., Hawley, S. L., Walkowicz, L. M., Covey, K. R., Silvestri, N. M., Raymond, S. N., Harris, H. C., Munn, J. A., McGehee, P. M., Ivezić, Ž., & Brinkmann, J. (2004). Spectroscopic Properties of Cool Stars in the Sloan Digital Sky Survey: An Analysis of Magnetic Activity and a Search for Subdwarfs. The Astronomical Journal. https://doi.org/10.1086/421364
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