The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.
CONSTRAINING THE AGE-ACTIVITY RELATION FOR COOL STARS: THE SLOAN DIGITAL SKY SURVEY DATA RELEASE 5 LOW-MASS STAR SPECTROSCOPIC SAMPLE
Open accessAbstract
We present a spectroscopic analysis of over 38,000 low-mass stars from the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Analysis of this unprecedentedly large sample confirms the previously detected decrease in the fraction of magnetically active stars (as traced by Hα emission) as a function of the vertical distance from the Galactic plane. The magnitude and slope of this effect vary as a function of spectral type. Using simple 1D dynamical models, we demonstrate that the drop in activity fraction can be explained by thin-disk dynamical heating and a rapid decrease in magnetic activity. The timescale for this rapid activity decrease changes according to the spectral type. By comparing our data to the simulations, we calibrate the age–activity relation at each M dwarf spectral type. We also present evidence for a possible decrease in the metallicity as a function of height above the Galactic plane. In addition to our activity analysis, we provide line measurements, molecular band indices, colors, radial velocities, 3D space motions, and mean properties as a function of spectral type for the SDSS DR5 low-mass star sample.
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Cites
Numerical recipes in C: the art of scientific computing
(1993) · Choice Reviews Online · doi:10.5860/choice.30-5638 · Cited by 17,933
Numerical recipes in Pascal: the art of scientific computing
(1990) · Choice Reviews Online · doi:10.5860/choice.27-5158 · Cited by 11,811
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
The 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 2.5 m Telescope of the Sloan Digital Sky Survey
Gunn, J. E., Siegmund, W. A., Mannery, E. J., Owen, R. E., Hull, C. L., Leger, R. F., Carey, L. N., Knapp, G. R., York, D. G., Boroski, W. N., et al. (2006) · The Astronomical Journal · doi:10.1086/500975 · Cited by 2,373
Time Scales for CA II Emission Decay, Rotational Braking, and Lithium Depletion
Skumanich, A. (1972) · The Astrophysical Journal · doi:10.1086/151310 · Cited by 1,934
Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
Strauss, M. A., Weinberg, D. H., Lupton, R. H., Narayanan, V. K., Annis, J., Bernardi, M., Blanton, M., Burles, S., Connolly, A. J., Dalcanton, J., et al. (2002) · The Astronomical Journal · doi:10.1086/342343 · Cited by 1,909
The 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
Smith, 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
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THE BARYON OSCILLATION SPECTROSCOPIC SURVEY OF SDSS-III
Dawson, K. S., Schlegel, D. J., Ahn, C. P., Anderson, S. F., Aubourg, É., Bailey, S., Barkhouser, R. H., Bautista, J. E., Beifiori, A., Berlind, A. A., et al. (2013) · The Astronomical Journal · doi:10.1088/0004-6256/145/1/10 · Cited by 2,051
Self-citationImproved Age Estimation for Solar‐Type Dwarfs Using Activity‐Rotation Diagnostics
Mamajek, E. E., & Hillenbrand, L. A. (2008) · The Astrophysical Journal · doi:10.1086/591785 · Cited by 1,313
SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14-20
Yanny, B., Rockosi, C., Newberg, H. J., Knapp, G. R., Adelman-McCarthy, J. K., Alcorn, B., Allam, S., Prieto, C. A., An, D., Anderson, K. S. J., et al. (2009) · The Astronomical Journal · doi:10.1088/0004-6256/137/5/4377 · Cited by 1,162
“Originally, 1012 sdMs were targeted, based on a version of the West et al. (2008) color cuts.”
BackgroundSelf-citationSmee, S. A., Gunn, J. E., Uomoto, A., Roe, N., Schlegel, D., Rockosi, C. M., Carr, M. A., Leger, F., Dawson, K. S., Olmstead, M. D., et al. (2013) · The Astronomical Journal · doi:10.1088/0004-6256/146/2/32 · Cited by 1,079
The stellar-activity-rotation relationship and the evolution of stellar dynamos
Wright, N. J., Drake, J. J., Mamajek, E. E., & Henry, G. W. (2011) · The Astrophysical Journal · doi:10.1088/0004-637x/743/1/48 · Cited by 882
Metadata
- Authors
- West, A. A., Hawley, S. L., Bochanski, J. J., Covey, K. R., Reid, I. N., Dhital, S., Hilton, E. J., & Masuda, M.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2008-01-29
- Volume
- 135
- Issue
- 3
- Pages
- 785-795
- ISSN
- 0004-6256 (ISSN-L)
- 1538-3881
- OpenAlex
- W2082366856
- Cited by
- 600
- References
- 58
- FWCI
- 23.58
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: CONSTRAINING THE AGE-ACTIVITY RELATION FOR COOL STARS: THE SLOAN DIGITAL SKY SURVEY DATA RELEASE 5 LOW-MASS STAR SPECTROSCOPIC SAMPLE. https://app.cochat.ai/papers/10.1088/0004-6256/135/3/785
- The paper
- West, A. A., Hawley, S. L., Bochanski, J. J., Covey, K. R., Reid, I. N., Dhital, S., Hilton, E. J., & Masuda, M. (2008). CONSTRAINING THE AGE-ACTIVITY RELATION FOR COOL STARS: THE SLOAN DIGITAL SKY SURVEY DATA RELEASE 5 LOW-MASS STAR SPECTROSCOPIC SAMPLE. The Astronomical Journal. https://doi.org/10.1088/0004-6256/135/3/785
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