Details

Autor(en) / Beteiligte

• Sargent, A. I.
• van Duinen, R. J.
• Nordh, H. L.
• Fridlund, C. V. M.
• Aalders, J. W. G.
• Beintema, D.

Titel

Searches for far-infrared emission from dark clouds - Rho Ophiuchi, Heiles 2, L1529, and L183

Ist Teil von

• The Astronomical journal, 1983-01, Vol.88, p.88-93

Erscheinungsjahr

1983

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.