2003A&A...401..339B


Query : 2003A&A...401..339B

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.

BRYCE H.M., IGNACE R. and HENDRY M.A.

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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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 EROS BLG 2000 5 * 17 53 11.43 -30 55 34.4           K3III 36 0
2 MACHO 95-BLG-30 * 18 07 04.4 -27 22 06     16.21     M4III 39 0

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2021.08.05-19:15:01

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