GT2318 + 620, a variable Galactic source with a radio jet

Details GT2318 + 620, a variable Galactic source with a radio jet GT2318 + 620, a variable Galactic source with a radio jet

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.351..547t&link_type=abstract

Nature (ISSN 0028-0836), vol. 351, June 13, 1991, p. 547-549. NSERC-supported research.

Astronomy and Astrophysics

Astronomy

8

Milky Way Galaxy, Radio Astronomy, Radio Sources (Astronomy), Radio Telescopes, Cataclysmic Variables, Flare Stars, Pulsars, Stellar Luminosity, X Ray Binaries

Scientific paper

Neutral hydrogen absorption toward GT2318 + 620 is reported which indicates that it is a Galactic object at a distance of 3-6 kpc. A high-resolution radio image of the source is also presented which reveals an unresolved core with a jetlike feature extending on either side. GT2318 + 620 is coincident with a star of about 20th magnitude, and it is suggested that it is a radio-emitting low-mass X-ray binary (LMXB). The radio luminosity of GT2318 + 620 is markedly higher than that of Sco X-1, the only other LMXB to show a radio jet. In its radio brightness it resembles SS433, which is remarkable for its relativistic jet motion on arcsec scales, thought to result from accretion onto a collapsed stellar object.

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