Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...179..171e&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 179, no. 1-2, June 1987, p. 171-175.
Astronomy and Astrophysics
Astronomy
28
Binary Stars, Infrared Sources (Astronomy), Pre-Main Sequence Stars, Infrared Photometry, Infrared Stars, Molecular Clouds, Polarimetry, Stellar Spectrophotometry
Scientific paper
Observations of the infrared source Serpens - SVS 20 are presented. They show that SVS 20 is a double source surrounded by a very weak extended 2.2 μm flux. The separation and brightness ratio of the two components are 1arcsec.6 (400 AU) and Δm = 1.6 mag, respectively, and are wavelength independent. On the basis of the spatially resolved polarization measurements and of the observed energy distribution it is concluded that both sources are young pre-main-sequence (PMS) stars, with the total luminosity in the 7 - 45 L_sun; range. The double star Serpens - SVS 20 is one of the closest and least luminous star pairs known among the class of the PMS stars.
Eiroa Carlos
Hodapp Klaus W.
Leinert Ch.
Lenzen Rainer
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