Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..219..925s&link_type=abstract
Stars as suns : activity, evolution and planets, Proceedings of the 219th symposium of the International Astronomical Union held
Astronomy and Astrophysics
Astronomy
Scientific paper
Few methods are as effective as interferometry for probing the dust formation regions around evolved stars at high spatial scales. Using multi-epoch VLBA monitoring observations of 43 GHz SiO (v=1J=1-0) maser emission Ostrowski-Fukuda et al.(2003 AAS meeting 201 poster 115) found that the red supergiant S Persei exhibits clumpy and variable SiO maser spots in a broken elongated (elliptical) ring approximately 23 by 16 milli-arcsec with the semi-major axis oriented in the northeast-southwest (NE-SW) direction. Independent K band interferometry (PTI group Creech-Eakman and Thompson) obtained a limb darkened diameter for S Per of 5 mas similarly oriented. These facts combined suggest that the masers constitute a standing wave phenomenon associated with rapid particle formation at ~2 stellar radii. We present these results and a model for this phenomenon.
Jurgenson Colby A.
Ostrowski-Fukuda T. A.
Stencel Robert E.
No associations
LandOfFree
Interferometric Studies of Dust Formation in the Red Supergiant Star S Persei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interferometric Studies of Dust Formation in the Red Supergiant Star S Persei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometric Studies of Dust Formation in the Red Supergiant Star S Persei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1546605