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Merlin Observations of the OH Maser Emission from IRC+10420

Published online by Cambridge University Press:  04 August 2017

P. J. Diamond
P. J. Diamond*
Affiliation:
Onsala Space Observatory S-439 00 Onsala Sweden

Extract

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MERLIN observations of the 1612 and 1665 Mhz OH masers from the supergiant IRC+10420 reveal several major departures from the usual morphology of OH/IR stars.

IRC+10420 is one of the most unusual OH maser sources yet found. It is an F8 supergiant with strong OH maser emission at 1612, 1665 and 1667 Mhz. A north-south optical nebulosity with an angular size of 2 arcsec has been detected (Thompson and Boroson,1977) and its peculiar IR properties are reminiscent of Eta Carina. These characteristics make IRC+10420 unique among Type II OH/IR stars.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 110: VLBI and Compact Radio Sources , 1984 , pp. 321 - 322
Copyright
Copyright © Reidel 1984 

References

Benson, J.M., Mutel, R.L., Fix, J.D., Claussen, M.J., 1979, Ap. J. 229, L87–90 Google Scholar
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Diamond, P.J., Norris, R.P., and Booth, , Astron. Astrophys. (in press) Google Scholar
Elitzur, M., Goldreich, P., Scoville, N., 1976, Ap. J., 205, pp 384–396 Google Scholar
Thompson, R.I. and Boroson, T.A., 1977, Ap. J., 216, L75–77 Google Scholar