view Abstract Citations (22) References (39) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Searches for far-infrared emission from dark clouds: rho Ophiuchi, Heiles 2, L 1529, and L 183. Sargent, A. I. ; van Duinen, R. J. ; Nordh, H. L. ; Fridlund, C. V. M. ; Aalders, J. W. G. ; Beintema, D. Abstract Four dark clouds, Rho Ophiuchi, Heiles 2, L1529, and L183, have been surveyed at 70 and 130 microns. A new source of far-infrared radiation, with total luminosity between 5 solar luminosities and 9 solar luminosities, compatible with the presence of a low-mass star, has been detected in Rho Oph. The emission extends over a very small region coincident with a (C-18)O column density peak. The temperature of the emitting dust is determined to be about 13 K, considerably lower than the gas excitation temperature. No far-infrared emission was detected from Heiles 2, L1529, or L183, indicating that these clouds can harbor only very low-mass objects, of luminosity at most about 2 solar luminosities. Publication: The Astronomical Journal Pub Date: January 1983 DOI: 10.1086/113290 Bibcode: 1983AJ.....88...88S Keywords: Astronomical Spectroscopy; Emission Spectra; Far Infrared Radiation; Infrared Spectra; Molecular Clouds; Carbon Isotopes; Cosmic Dust; Cosmic Gases; Gas Heating; Stellar Evolution; Stellar Luminosity; Stellar Mass; Stellar Temperature; Astrophysics full text sources ADS | data products SIMBAD (5)