Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987afz....26..457l&link_type=abstract
(Astrofizika, vol. 26, May-June 1987, p. 457-468) Astrophysics (ISSN 0571-7132), vol. 26, no. 3, Nov. 1987, p. 276-283. Translat
Astronomy and Astrophysics
Astronomy
11
Far Infrared Radiation, Spaceborne Astronomy, Spectral Energy Distribution, Spectrum Analysis, Symbiotic Stars, Astronomical Catalogs, Infrared Astronomy Satellite, Point Sources, Satellite Observation
Scientific paper
Symbiotic stars contained in Allen's catalog are examined with a view to establishing their coincidence with sources of far infrared radiation in the catalog of point sources observed with the IRAS satellite. Altogether, 72 symbiotic or suspected symbiotic objects have been identified. A list of the identified stars has been compiled, and the energy distributions in the infrared spectra of selected stars are given. It has been found that the presence of dust in symbiotic systems is a more widespread phenomenon than hitherto believed. Almost 40 percent of them are 'dust' systems. Among them, objects with dust temperature of several tens of degrees K have been found. It is shown that the only useful two-color diagram is the (K - m12)-(m12 - m25) diagram. Finally, attention is drawn to a type of symbiotic star having cold components of the spectral class G; these require a special investigation.
Luud L.
Tuvikene Taavi
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