The infrared variability of SSV 13

Details The infrared variability of SSV 13 The infrared variability of SSV 13

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253..119l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 1, Jan. 1992, p. 119-125.

Astronomy and Astrophysics

Astrophysics

21

Accretion Disks, Infrared Stars, Pre-Main Sequence Stars, Star Formation, Stellar Color, Stellar Envelopes, Variable Stars, Black Body Radiation, Infrared Photometry, Interstellar Extinction, Stellar Luminosity, Stellar Magnitude, Stellar Mass Accretion, Stellar Occultation

Scientific paper

The present near-IR photometric data identify the embedded low-luminosity object SSV 13 as a variable which has brightness at 2.2 microns by 1 mag in the course of a single year. The associated color changes are not directly compatible with those anticipated on the basis of interstellar extinction curves; it is suggested that a model in which the observed variations reflect thermal instabilities in the circumstellar disk of SSV 13, due to variable mass accretion, is held to be more faithful to the color-magnitude variations.

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