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Radio observations of symbiotic stars

Journal Article:

Abstract

A search for 2-cm continuum emission from 91 symbiotic stars has been undertaken using the Parkes radio telescope. Nine sources have been detected, four of which are reported for the first time. The radio spectral indices are mostly about + 0.6; these are interpreted in terms of mass loss. In two stars a portion of the radio spectrum has an index of zero, and for one of these stars (RX Puppis) this is plausibly a manifestation of the cessation of symbiotic activity that occurred about two decades ago. There is an extraordinarily good correlation between the detectability at 2cm and the presence of circumstellar dust, but not between the radio and optical domains. The importance of continued radio monitoring of HM Sagittae over the next few years is stressed.
Authors:
Wright, A E; [1]  Allen, D A
  1. Commonwealth Scientific and Industrial Research Organization, Epping (Australia). Div. of Radiophysics
Publication Date:
Sep 01, 1978
Product Type:
Journal Article
Reference Number:
AIX-10-419850; EDB-79-070571
Resource Relation:
Journal Name: Mon. Not. R. Astron. Soc.; (United Kingdom); Journal Volume: 184:3
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; STARS; RADIOWAVE RADIATION; COSMIC DUST; COSMIC RADIO SOURCES; GHZ RANGE 01-100; MASS TRANSFER; SPECTRA; DUSTS; ELECTROMAGNETIC RADIATION; FREQUENCY RANGE; GHZ RANGE; RADIATIONS; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
OSTI ID:
6311099
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MNRAA
Submitting Site:
INIS
Size:
Pages: 893-902
Announcement Date:

Journal Article:

Citation Formats

Wright, A E, and Allen, D A. Radio observations of symbiotic stars. United Kingdom: N. p., 1978. Web.
Wright, A E, & Allen, D A. Radio observations of symbiotic stars. United Kingdom.
Wright, A E, and Allen, D A. 1978. "Radio observations of symbiotic stars." United Kingdom.
@misc{etde_6311099,
title = {Radio observations of symbiotic stars}
author = {Wright, A E, and Allen, D A}
abstractNote = {A search for 2-cm continuum emission from 91 symbiotic stars has been undertaken using the Parkes radio telescope. Nine sources have been detected, four of which are reported for the first time. The radio spectral indices are mostly about + 0.6; these are interpreted in terms of mass loss. In two stars a portion of the radio spectrum has an index of zero, and for one of these stars (RX Puppis) this is plausibly a manifestation of the cessation of symbiotic activity that occurred about two decades ago. There is an extraordinarily good correlation between the detectability at 2cm and the presence of circumstellar dust, but not between the radio and optical domains. The importance of continued radio monitoring of HM Sagittae over the next few years is stressed.}
journal = {Mon. Not. R. Astron. Soc.; (United Kingdom)}
volume = {184:3}
journal type = {AC}
place = {United Kingdom}
year = {1978}
month = {Sep}
}