Spectropolarimetry of the Young Stellar Object R Mon

Details Spectropolarimetry of the Young Stellar Object R Mon Spectropolarimetry of the Young Stellar Object R Mon

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999sf99.proc..320m&link_type=abstract

Star Formation 1999, Proceedings of Star Formation 1999, held in Nagoya, Japan, June 21 - 25, 1999, Editor: T. Nakamoto, Nobeyam

Physics

Scientific paper

We performed low dispersion spectropolarimetry of the young stellar object R Mon, which is classified as a Herbig Ae/Be star. The polarization of Hα emission line was different from that of the adjacent continuum. For the data on January 29, 1998, the polarization degree of the Hα was 13.7 +/- 0.6 %, and it was smaller than that of the continuum (15.1 +/- 0.3 %). The position angle of the Hα (77 degrees) was a few degrees larger than that of the continuum (75 degrees). Our results suggest that significant portion of the Hα emission should come from the region close to the star, because the observed polarization of the Hα is similar to that of the continuum. However, since the polarization degree of Hα is less than that of the continuum, part of the ionized region may be spatially more extended. It may coexist with the clouds which make light scattering.

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