High-resolution IRAS observations of the Rho Ophiuchi cloud core

Journal Article · Thu May 01 00:00:00 EDT 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184668· OSTI ID:5322328

Young, E T; Lada, C J; Wilking, B A

IRAS high-resolution (12, 25, 60, and 100 microns) observations of the Rho Ophiuchi cloud core are presented. Analysis of the 12 micron data reveals 18 individual embedded sources with a surface brightness of greater than 1 Jy/sq arcmin and far-infrared luminosities ranging between 0.2-21 solar luminosities. Infrared observations collected at the Infrared Telescope Facility in Mauna Kea, Hawaii in July 1984 and April 1985 are utilized to identify 13 near-infrared objects in the IRAS data. The ground-based fluxes are compared to IRAS density fluxes; it is observed that the ground-based fluxes are lower by about a factor of three than the IRAS fluxes, indicating the presence of midinfrared emission due to hot dust on angular scales greater than 6-13 arcsec. It is noted that the IRAS observations provide a more complete description of the embedded population in the Rho Ophiuchi core than previous studies. 10 references.

• Research Organization: Steward Observatory, Tucson, AZ; Missouri Univ., St. Louis
• OSTI ID: 5322328
• Journal Information: Astrophys. J.; (United States), Vol. 304
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
FAR INFRARED RADIATION
LUMINOSITY
MAPS
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
INFRARED RADIATION
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
640105* - Astrophysics & Cosmology- Galaxies