Infrared photometry of early-type stars. I

Details Infrared photometry of early-type stars. I Infrared photometry of early-type stars. I

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.183..215s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 183, Apr. 1978, p. 215-222.

Astronomy and Astrophysics

Astronomy

13

B Stars, Early Stars, Infrared Astronomy, Infrared Photometry, Stellar Spectrophotometry, Astronomical Catalogs, Dwarf Stars, Emission Spectra, Interstellar Extinction, Star Clusters, Supergiant Stars, Td Satellites, Ultraviolet Astronomy

Scientific paper

K (2.2-micron) magnitudes are given for reddened early-type stars in the galactic anticenter region between galactic longitudes of 160 and 230 deg, in conjunction with ultraviolet photometry from the TD1 satellite. A value of 3.12 + or - 0.05 for the extinction ratio R is derived for the general field and for the Mon OB2 region. The strength of the interstellar absorption feature at 2200 A is calibrated in terms of total visual extinction. Many of the emission-line stars show infrared excess, and there are indications that in some of these the 2200-A absorption is depleted.

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