Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....99l...8k&link_type=abstract
Astronomy and Astrophysics, vol. 99, no. 1, June 1981, p. L8-L11.
Astronomy and Astrophysics
Astrophysics
43
Galactic Clusters, Stellar Evolution, Stellar Mass, Stellar Spectrophotometry, White Dwarf Stars, Balmer Series, Stellar Magnitude, Stellar Spectra
Scientific paper
Romanishin and Angel (1980) have conducted a search for faint white dwarf candidates in a number of galactic clusters. By means of a comparison of red and ultraviolet deep direct photographs, they looked for an excess, relative to comparison fields, of faint blue objects in a number of intermediate-age clusters. Based on their findings Romanishin and Angel concluded that the maximum initial stellar mass limit for formation of white dwarfs is approximately 7 solar masses. The considered study is concerned with the spectroscopic confirmation that the objects found are really white dwarfs. It was tried to observe all 6 candidates in the galactic clusters NGC 2287 and 2422. It was found that of the four actually observed candidates 3 are certainly and one very probably white dwarfs.
Koester Detlev
Reimers Dieter
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