Far-infrared and radio observations of the W31 star-forming region

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168122· OSTI ID:7193705

Ghosh, S K; Iyengar, K V.K.; Rengarajan, T N; Tandon, S N; Verma, R P ^[1]

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1. Tata Institute of Fundamental Research, Bombay (India)

New 150 micron mapping of the W31 star-forming region with a resolution of 1.5 arcmin has resolved 12 sources, including eight new ones. About 35 percent of the emission is of diffuse origin. The IRAS two-dimensional COADD data of the same region at 60 and 100 microns have been deconvolved using a maximum-entropy algorithm. The dust temperature, dust optical depth, far-IR luminosity, and so on, have been derived for individual sources in the star-forming complex; several of these seem to be excited by embedded young stars. One young stellar object with an optically thick ionized envelope has been identified. New high-resolution maps of selected regions around the two most prominent H II regions in the W31 complex, G10.2-0.3 and G10.3-0.1, have been obtained at 5 and 15 GHz using the VLA. The initial mass function for G10.2-0.3 is quite steep. An energetic bipolar outflow source candidate has been found which is proposed to be the mid-IR source in the G10.2-0.3 complex. 41 refs.

• OSTI ID: 7193705
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 347; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FAR INFRARED RADIATION
FLUID FLOW
FLUIDS
GAS FLOW
GASES
H2 REGIONS
INFRARED RADIATION
INTERSTELLAR SPACE
LUMINOSITY
MAPPING
MASS
MOLECULES
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROTOSTARS
RADIATIONS
RADIOWAVE RADIATION
SATELLITES
SPACE
STAR EVOLUTION