The IR morphology of the bipolar nebula R Mon/NGC 2261

Details The IR morphology of the bipolar nebula R Mon/NGC 2261 The IR morphology of the bipolar nebula R Mon/NGC 2261

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...197..242a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 197, no. 1-2, May 1988, p. 242-248.

Astronomy and Astrophysics

Astronomy

16

Infrared Astronomy, Nebulae, Pre-Main Sequence Stars, Stellar Structure, Variable Stars, Spatial Resolution, Stellar Envelopes

Scientific paper

The authors present the first high spatial resolution IR images of Hubble's variable nebula R Mon/NGC 2261. These images show new morphological structure associated with the nebula and circumstellar environment. In particular, the authors present the first IR detection of a jet-like feature some 15arcsec long, extending east from the stellar source and aligned perpendicular to the bipolar axis. This feature most probably forms the inner, hot region of a circumstellar disk. The discovery of several filamentary streamers of material extending to the NE from the circumstellar region is also presented. New K-band big beam polarimetry of R Mon and the nebula shows that they are highly polarized and that the 2.2 μm flux is scattered radiation originating from the circumstellar environment of R Mon.

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