SIMBAD references

2003A&A...401..339B - Astronomy and Astrophysics, volume 401, 339-346 (2003/4-1)

Microlensing of circumstellar envelopes. II. Emission lines from radial and azimuthal flow during fold caustic crossings.


Abstract (from CDS):

This paper examines the line profile evolution due to bulk motion in circumstellar envelopes during microlensing fold caustic crossing events. These events have recently been shown to be a sensitive probe of stellar surface brightness profiles, thus providing a means - through both photometric and spectroscopic observations - to constrain and test stellar atmosphere models. Here it is demonstrated, through the examination of simplified line profiles, that spectroscopic studies of fold caustic crossings could also prove to be a powerful diagnostic of bulk motion in circumstellar envelopes.

Abstract Copyright:

Journal keyword(s): gravitational lensing - stars: circumstellar matter

Simbad objects: 2

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