Far-infrared data for symbiotic stars. I - The IRAS pointed observations

Details Far-infrared data for symbiotic stars. I - The IRAS pointed observations Far-infrared data for symbiotic stars. I - The IRAS pointed observations

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92.1118k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, Nov. 1986, p. 1118-1124. Research supported by the U.S.-Spanish Joint Committee

Astronomy and Astrophysics

Astronomy

29

Infrared Astronomy, Spaceborne Astronomy, Symbiotic Stars, Giant Stars, Infrared Astronomy Satellite, Spectral Energy Distribution, Stellar Envelopes

Scientific paper

The authors present IRAS pointed observations of eight symbiotic stars. Five S-type symbiotics (EG And, T CrB, RS Oph, AR Pav, and AX Per) have IR energy distributions that are very similar to those of normal M giants. Free-free emission may supply a fraction of the observed 12 and 25 μm flux in RS Oph, AR Pav, and AX Per. Three D-type symbiotics (RX Pup, HM Sge, and RR Tel) have IR energy distributions that are consistent with those of Mira variables only if the giants are heavily reddened (AK ≡ 1-2). The hot components in these binaries appear to lie outside the dust shell that enshrouds their Mira companions.

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