The optical counterpart of OH/IR 17.7-2.0

Details The optical counterpart of OH/IR 17.7-2.0 The optical counterpart of OH/IR 17.7-2.0

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986msngr..44....6l&link_type=abstract

ESO Messenger (ISSN 0722-6691), June 1986, p. 6-9.

Physics

4

Hydroxyl Emission, Infrared Spectra, Interstellar Masers, Stellar Spectra, Stellar Spectrophotometry, Visible Spectrum, Spectral Energy Distribution, Stellar Envelopes

Scientific paper

Using coordinates obtained in different wavelength ranges, an identification of the optical counterpart of OH/IR 17.7-2.0 is suggested. Positional agreement is found between candidate objects detected in the visible using the ESO-Garching Optronics machine, in the NIR using the 1-m La Silla telescope, and by IRAS. A physical association between candidate object A and the IR source is indicated by 1-m visible and IR photometry obtained in June 1985. Further confirmation is found in the absence of absorption features of the central star, indicating that the underlying star is of spectral type earlier than K5.

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