Subdwarf bolometric corrections

Details Subdwarf bolometric corrections Subdwarf bolometric corrections

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84..867c&link_type=abstract

Astronomical Journal, vol. 84, June 1979, p. 867-871. Research supported by Harvard University

Astronomy and Astrophysics

Astronomy

53

Bolometers, Dwarf Stars, Stellar Spectrophotometry, Subdwarf Stars, Atmospheric Models, Colorimetry, Line Spectra, Numerical Integration, Ubv Spectra

Scientific paper

UBVRIJHK photometry is presented for dwarfs and subdwarfs with effective temperatures of 4600 to 6300 K. Bolometric corrections are derived by numerically integrating over the fluxes and by using model atmospheres to correct the fluxes shortward of the U bandpass and longward of the K bandpass. It is found that the bolometric corrections of subdwarfs depart significantly from those of Population I dwarfs at temperatures greater than about 5200 K. Synthetic line-blanketed UBV and uvby colors are also presented for model atmospheres with log g = 4.5, logarithmic heavy-element abundances of 0, -1, -2, and effective temperatures of 5000 to 6500 K.

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