VLA observations of formaldehyde emission from Rho Ophiuchi B

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184534· OSTI ID:5573886

Wadiak, E J; Rood, R T; Wilson, T L; Johnston, K J

The 2(11)-2(12) H2CO K-doublet emission source in the Rho Ophiuchi B cloud core has been observed with an angular resolution of 10 arcsec. The core contains 1-4 solar masses of dense molecular gas within a region 0.05 x 0.02 pc in spatial extent. Maps with spectral resolution of 0.25 km/s exhibit structure on size scales approximately the same as the Jeans length, approximately 0.01 pc. Systematic variations in the positions of the peak line intensities with velocity suggest that the core may be comprised of at least two small rotating fragments. These fragments contain masses typical of low-mass stars and have densities and linear sizes expected of protostars. 13 references.

• Research Organization: Virginia Univ., Charlottesville; Max-Planck-Institut fuer Radioastronomie, Bonn, West Germany; E.O. Hulburt Center for Space Research, Washington, DC
• OSTI ID: 5573886
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 295; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALDEHYDES
COSMIC GASES
COSMIC RADIO SOURCES
FLUIDS
FORMALDEHYDE
GASES
INTERFEROMETRY
INTERSTELLAR SPACE
MASS
MOLECULES
ORGANIC COMPOUNDS
PROTOSTARS
RADIAL VELOCITY
SPACE
VELOCITY