Spectroscopy and photometry for low-mass stars in Praesepe

Details Spectroscopy and photometry for low-mass stars in Praesepe Spectroscopy and photometry for low-mass stars in Praesepe

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasp..106..817w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 106, no. 702, p. 817-821

Astronomy and Astrophysics

Astronomy

9

Dwarf Stars, H Alpha Line, K Stars, M Stars, Praesepe Star Clusters, Stellar Mass, Chromosphere, Color-Magnitude Diagram, Emission Spectra, Spectrophotometry, X Ray Spectra

Scientific paper

We 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.

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