Pre-main-sequence stars in the Serpens molecular cloud

Abstract

view Abstract Citations (35) References (44) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Pre--Main-Sequence Stars in the Serpens Molecular Cloud Churchwell, E. ; Koornneef, J. Abstract The authors have mapped the central 10 arcmin2 region of the Serpens molecular cloud at 2.2 μm with a spatial resolution of ≡7arcsec.5. More than 13 stars with K ⪉ 13.4 mag were detected in this area, only three of which have so far been identified with optical counterparts. Additional infrared photometry as well as spectrophotometry around 3.1 μm were obtained for the four brightest stars. The flux distributions of all four stars peak at approximately 3 μm, and the 3.07 μm "ice" feature was detected in absorption toward all four stars. The primary result of this study is the detection of at least three pre-main-sequence stars. The range of possible luminosities, radii, and temperatures for these stars as derived from the authors' near-infrared observations are consistent with those expected from models of low mass, pre-main-sequence stars. The near-infrared radiation is predicted to originate from circumstellar dust at a radius of up to 100 R_sun; with an effective temperature of ⪉2100K. Publication: The Astrophysical Journal Pub Date: January 1986 DOI: 10.1086/163847 Bibcode: 1986ApJ...300..729C Keywords: Infrared Photometry; Molecular Clouds; Pre-Main Sequence Stars; Stellar Envelopes; Stellar Spectrophotometry; Absorption Spectra; Astronomical Maps; Infrared Spectra; Radiant Flux Density; Spectral Energy Distribution; Stellar Luminosity; Stellar Temperature; Astrophysics; INFRARED: SOURCES; STARS: CIRCUMSTELLAR SHELLS; STARS: PRE--MAIN-SEQUENCE full text sources ADS | data products SIMBAD (15)