Further VLA observations of hydrogen deficient stars

Details Further VLA observations of hydrogen deficient stars Further VLA observations of hydrogen deficient stars

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987japa....8..227k&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 8, Sept. 1987, p. 227-230.

Astronomy and Astrophysics

Astronomy

3

Hydrogen, Radio Astronomy, Stellar Composition, Stellar Spectrophotometry, Very Large Array (Vla), Centimeter Waves, Infrared Radiation, Planetary Nebulae, Radiant Flux Density

Scientific paper

VLA observations at 6 cm have been obtained for three hydrogen-deficient objects (Upsilon Sgr, V 348 Sgr, and Abell 58). Abell 58 was also observed at 2 cm. Only upper limits to the flux density could be set for these sources. A new radio source at 6 cm was found in the field of Upsilon Sgr. The upper limit for 6-cm flux density of V 348 Sgr sets an upper limit to its reddening as E(B-V) = 0.65 or less. The hydrogen-deficient planetary nebula A 58 shows much lower radio flux than expected from the IR radio flux-density relationship of planetary nebulae.

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