GL961 - an infrared double source

Details GL961 - an infrared double source GL961 - an infrared double source

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137..365l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 2, Aug. 1984, p. 365-367.

Astronomy and Astrophysics

Astronomy

23

Astronomical Maps, Infrared Astronomy, Stellar Evolution, Spectral Energy Distribution, Visible Spectrum

Scientific paper

High resolution near infrared maps (2.2 microns, 3.6 microns) are presented which demonstrate that GL961 is an infrared double source composed of two pointlike components which are separated by about 5 arcsec. Optical (0.9 micron) identifications (Eiroa, 1981) refer to the western component for which a color temperature of about 1050 K at 3 microns is deduced. The VLA-position, in constrast, coincides with that of the eastern much redder component. To explain the 3.1 micron-absorption feature observed for the whole complex (Willner et al., 1982), an absorption depth of at least 0.6 mag is required even for the bluer component. The infrared polarization is paralle to the direction of separation of these two components; the main direction of CO-mass outflow is nearly perpendicular to it. Within the conical nebula GGD18 near GL961 another pointlike IR-source has been found which seems to be the exciting source of this nebula.

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