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Spectroscopy and photometry for low-mass stars in PraesepeWe have obtained spectral types, H alpha equivalent widths, and optical photometry for a small sample of late K and M dwarf candidate members of the Praesepe open cluster. At least for the small sample of stars we have observed, all of the Paesepe members later than M2 have H alpha in emission. The chromospheric activity of the Praesepe satrs is essentially the same as that for Hyades members of the same mass, as expected since the two clusters are thought to be the same age.
Document ID
19950054637
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Williams, Scott D.
(Franklin and Marshall College, Lancaster, PA United States)
Stauffer, John R.
(Smithsonian Astrophysical Observatory, Cambridge, MA United States)
Prosser, Charles F.
(Smithsonian Astrophysical Observatory, Cambridge, MA United States)
Herter, Terry
(Cornell University Ithaca, NY, United States)
Date Acquired
August 16, 2013
Publication Date
August 1, 1994
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 106
Issue: 702
ISSN: 0004-6280
Subject Category
Astronomy
Accession Number
95A86236
Funding Number(s)
CONTRACT_GRANT: NAGW-2698
Distribution Limits
Public
Copyright
Other

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