New light on the variable radio source, 0048-097

Journal Article · Mon Dec 10 04:00:00 EST 1973 · Nature (London) Phys. Sci., v. 246, no. 154, pp. 89-90

DOI:https://doi.org/10.1038/physci246089a0· OSTI ID:4322920

Carswell, R F; Strittmatter, P A; Disney, M J; Hoskins, D G; Murdoch, H S

The source 0048-097 has been identified with an 18 mag blue galaxy in a small cluster, and a number of accounts have been published of its rapid radio variability at high frequency. On the other hand the source was identified with a 17 mag neutral stellar object southeast of the galaxy. The latter identification is based on a 2695 MHz radio position measured with the Royal Radar Establishment, Malvern, interferometer, and also a Molonglo optical position obtained from the Palomar prints. Optical spectra were obtained at Mt. Stromlo Observatory. Australia, and at Steward Observatory, Arizona, in August and September 1973. The featureless optical spectrum obtained and the rapid radio variability suggest that the source is probably a Lacertid, a common property of which group is that they appear neutral or near neutral on the Palomar Sky Survey. About 30 radio sources have recently been identified with stellar objects of neutral color, and it seems probable that a substantial number of new Lacertids will be found within an extended sample. (UK)

• Research Organization: Univ. of Arizona, Tucson
• NSA Number: NSA-29-021891
• OSTI ID: 4322920
• Journal Information: Nature (London) Phys. Sci., v. 246, no. 154, pp. 89-90, Journal Name: Nature (London) Phys. Sci., v. 246, no. 154, pp. 89-90; ISSN NPSCA
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*COSMIC RADIO SOURCES-- EMISSION SPECTRA
*RADIO GALAXIES-- EMISSION SPECTRA
*VARIABLE STARS-- EMISSION SPECTRA
COLOR
N56300* --Physics (Astrophysics & Cosmology)--Quasi-stellar
Radio & X-Ray Sources
STARS
VARIATIONS