Multifrequency VLA observations of radio continuum from IRAS 16293 - 2422

Details Multifrequency VLA observations of radio continuum from IRAS 16293 - 2422 Multifrequency VLA observations of radio continuum from IRAS 16293 - 2422

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...371..626e&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 20, 1991, p. 626-630. SEUI-supported research.

Astronomy and Astrophysics

Astronomy

26

H Ii Regions, Infrared Sources (Astronomy), Pre-Main Sequence Stars, Radio Sources (Astronomy), Stellar Spectra, Astronomical Maps, Infrared Astronomy Satellite, Radio Astronomy, Spectrum Analysis, Very Large Array (Vla)

Scientific paper

The region associated with IRAS 16293 - 2422 was observed at 20, 6, 2 and 1.3 cm with the VLA. The 2 cm monitoring shows no significant time variability over a scale of several hours to about a year. The sources in the region show no circular or linear polarization at a level of 10 percent. IRAS 16293 - 2442A has a spectral index of about 0.6 from 6 to 1.3 cm, a value consistent with an ionized outflow or with a partially optically thick H II region. IRAS 16293 - 2422B has a spectral index of about 2.1 between 6 and 2 cm and of about 3.2 between 2 and 1.3 cm. This last spectral index suggest that the 1.3 cm flux may have a contribution from dust emission.

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