Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-10-15
Astron.Astrophys. 411 (2003) L493-L496
Astronomy and Astrophysics
Astrophysics
Accepted for publication in A&A Letters. 5 pages, 2 embedded colour ps figures plus 1 jpg figure. Version with all figures emb
Scientific paper
10.1051/0004-6361:20031602
We report a measurement of limb darkening of a solar-like star in the very high magnification microlensing event MOA 2002-BLG-33. A 15 hour deviation from the light curve profile expected for a single lens was monitored intensively in V and I passbands by five telescopes spanning the globe. Our modelling of the light curve showed the lens to be a close binary system whose centre-of-mass passed almost directly in front of the source star. The source star was identified as an F8-G2 main sequence turn-off star. The measured stellar profiles agree with current stellar atmosphere theory to within ~4% in two passbands. The effective angular resolution of the measurements is <1 micro-arcsec. These are the first limb darkening measurements obtained by microlensing for a Solar-like star.
Abe FR.
Bennett David P.
Bond Ian A.
Calitz Johannes J.
Claret Antonio
No associations
LandOfFree
Probing the atmosphere of a solar-like star by galactic microlensing at high magnification 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 Probing the atmosphere of a solar-like star by galactic microlensing at high magnification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the atmosphere of a solar-like star by galactic microlensing at high magnification will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527090