Infrared observations of OH/IR stars

Details Infrared observations of OH/IR stars Infrared observations of OH/IR stars

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...115..213w&link_type=abstract

Astronomy and Astrophysics, vol. 115, no. 1, Nov. 1982, p. 213-215.

Astronomy and Astrophysics

Astronomy

12

Hydroxyl Emission, Infrared Astronomy, M Stars, Masers, Radio Stars, Stellar Spectra, Giant Stars, Late Stars, Radial Velocity, Spectral Energy Distribution, Stellar Envelopes

Scientific paper

As part of a program to study in the infrared all presently known type II OH sources in a 140 sq deg area of sky along the galactic equator between longitudes 10 and 27.5 deg several OH sources have been identified with previously unknown infrared counterparts. These identifications could only be made because accurate radio positions were available, partly determined by ourselves using the Westerbork Radio Synthesis Telescope as a two-element interferometer at 18 cm. Observations at 1-20 microns obtained with the ESO 1 m telescope of the three brightest sources in the sample so far are presented. One source, OH 12.8-1.9, has not been observed before in the infrared, while OH 26.4-1.9 has been observed previously only out to 5 microns. The third source, OH 26.5 + 0.5, was about six times more luminous in 1981.3 than at its minimum in 1975.3.

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