VLA observations of radio sources near Wolf 359

Details VLA observations of radio sources near Wolf 359 VLA observations of radio sources near Wolf 359

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99.1039o&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, Oct. 1987, p. 1039-1043.

Astronomy and Astrophysics

Astronomy

4

Astronomical Models, Flare Stars, Radio Galaxies, Radio Sources (Astronomy), Wolf-Rayet Stars, Astronomical Maps, Normal Density Functions, Radio Astronomy

Scientific paper

VLA observations at 6 cm (about 0.45 arcsec resolution) and 20 cm (about 1.2 arcsec resolution) of the region surrounding the nearby dMe flare star Wolf 359 are presented. The 3-sigma upper limit to the quiescent flux density of Wolf 359 is 0.19 mJy at 6 cm and 0.29 mJy at 20 cm. The star appears underluminous compared to other dMe stars. Constraints on coronal models for this and possibly other very late M dwarfs are discussed. Maps of three background sources are presented. A double radio source (1054+073) with an angular extent of about 10 arcsec and a total flux density of about 60 mJy at 6 cm and about 230 mJy at 20 cm is located at a distance of about 100 arcsec to the northeast of Wolf 359. Two fainter extended radio sources are detected at angular distances from Wolf 359 of about 5.4 arcmin to the northwest (1053+073) and about 6.2 arcmin to the southeast (1054+072).

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