2004ApJ...606L.155B

Query : 2004ApJ...606L.155B

2004ApJ...606L.155B - Astrophys. J., 606, L155-L158 (2004/May-2)

OGLE 2003-BLG-235/MOA 2003-BLG-53: a planetary microlensing event.

BOND I.A., UDALSKI A., JAROSZYNSKI M., RATTENBURY N.J., PACZYNSKI B., SOSZYNSKI I., WYRZYKOWSKI L., SZYMANSKI M.K., KUBIAK M., SZEWCZYK O., ZEBRUN K., PIETRZYNSKI G., ABE F., BENNETT D.P., EGUCHI S., FURUTA Y., HEARNSHAW J.B., KAMIYA K., KILMARTIN P.M., KURATA Y., MASUDA K., MATSUBARA Y., MURAKI Y., NODA S., OKAJIMA K., SAKO T., SEKIGUCHI T., SULLIVAN D.J., SUMI T., TRISTRAM P.J., YANAGISAWA T., YOCK P.C.M. (The MOA and OGLE Collaborations)

Abstract (from CDS):

We present observations of the unusual microlensing event OGLE 2003-BLG-235/MOA 2003-BLG-53. In this event, a short-duration (∼7 days) low-amplitude deviation in the light curve due to a single-lens profile was observed in both the MOA (Microlensing Observations in Astrophysics) and OGLE (Optical Gravitational Lensing Experiment) survey observations. We find that the observed features of the light curve can only be reproduced using a binary microlensing model with an extreme (planetary) mass ratio of 0.0039+11–07for the lensing system. If the lens system comprises a main-sequence primary, we infer that the secondary is a planet of about 1.5 Jupiter masses with an orbital radius of ∼3 AU.

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Journal keyword(s): Cosmology: Gravitational Lensing - Stars: Planetary Systems - Stars: Individual: Alphanumeric: MOA 2003-BLG-53 - Stars: Individual: Alphanumeric: OGLE 2003-BLG-235

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 - 2024 		#notes
1 MOA 2003-BLG-53 * 18 05 16.35 -28 53 42.0           GIV 58 1
2 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1013 1

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