Comparison of Hα and Hβ Temperature Indicies in the Hyades and Coma Star Clusters

Details Comparison of Hα and Hβ Temperature Indicies in the Hyades and Coma Star Clusters Comparison of Hα and Hβ Temperature Indicies in the Hyades and Coma Star Clusters

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344224w&link_type=abstract

American Astronomical Society, AAS Meeting #213, #442.24; Bulletin of the American Astronomical Society, Vol. 41, p.323

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using the Dominion Astrophysical Observatory's 1.2-m telescope we have built up a large collection of spectra on stars from the Hyades Cluster, the Coma Clusters, and selected H-beta standards. These spectra cover the entire range from H-beta to H-alpha. The H-beta line has a long history of being used as a temperature index and more recently calibration of a H-alpha index has been reported (Vautier et al. 2005, BAAS, 207, 2804). We will present preliminary results of a spectrophotometric comparison of temperature indicies from each of the Hydrogen lines.

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