Spectroscopic identification of white dwarfs in galactic clusters. V - NGC 3532

Details Spectroscopic identification of white dwarfs in galactic clusters. V - NGC 3532 Spectroscopic identification of white dwarfs in galactic clusters. V - NGC 3532

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...218..118r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 218, no. 1-2, July 1989, p. 118-122.

Astronomy and Astrophysics

Astrophysics

26

Blue Stars, Galactic Clusters, Stellar Evolution, White Dwarf Stars, Balmer Series, Cooling, Identifying, Photographic Plates, Stellar Mass, Ultraviolet Spectroscopy

Scientific paper

An examination of deep UV and red Schmidt plates of faint blue objects in NGC 3532 has led to the identification of seven white dwarf candidates. Subsequent spectroscopic observations have confirmed three of the objects as white dwarfs with temperatures of about 28,000 K. Two of the white dwarfs are found to have masses larger than those of field white dwarfs. It is suggested that since mass segregation has occurred within the cluster, most of the white dwarfs may have escaped from the central part of the cluster where the bright stars are observed, allowing only a lower limit to be established for the upper mass limit of white dwarf progenitors.

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