2017ApJ...841...75J

Query : 2017ApJ...841...75J

2017ApJ...841...75J - Astrophys. J., 841, 75-75 (2017/June-1)

OGLE-2016 first resolved caustic-crossing binary-source event discovered by second-generation microlensing surveys.

JUNG Y.K., UDALSKI A., BOND I.A., YEE J.C., GOULD A., HAN C., ALBROW M.D., LEE C.-U., KIM S.-L., HWANG K.-H., CHUNG S.-J., RYU Y.-H., SHIN I.-G., ZHU W., CHA S.-M., KIM D.-J., LEE Y., PARK B.-G., KIM H.-W., POGGE R.W. (The KMTNet Collaboration), SKOWRON J., SZYMANSKI M.K., POLESKI R., MROZ P., KOZLOWSKI S., PIETRUKOWICZ P., SOSZYNSKI I., ULACZYK K., PAWLAK M. (The OGLE Collaboration), ABE F., BENNETT D.P., BARRY R., SUMI T., ASAKURA Y., BHATTACHARYA A., DONACHIE M., FUKUI A., HIRAO Y., ITOW Y., KOSHIMOTO N., LI M.C.A., LING C.H., MASUDA K., MATSUBARA Y., MURAKI Y., NAGAKANE M., RATTENBURY N.J., EVANS P., SHARAN A., SULLIVAN D.J., SUZUKI D., TRISTRAM P.J., YAMADA T., YAMADA T., YONEHARA A. (The MOA Collaboration)

Abstract (from CDS):

We report the analysis of the first resolved caustic-crossing binary-source microlensing event OGLE-2016-BLG-1003. The event is densely covered by round-the-clock observations of three surveys. The light curve is characterized by two nested caustic-crossing features, which is unusual for typical caustic-crossing perturbations. From the modeling of the light curve, we find that the anomaly is produced by a binary source passing over a caustic formed by a binary lens. The result proves the importance of high-cadence and continuous observations, and the capability of second-generation microlensing experiments to identify such complex perturbations that are previously unknown. However, the result also raises the issues of the limitations of current analysis techniques for understanding lens systems beyond two masses and of determining the appropriate multiband observing strategy of survey experiments.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: general - gravitational lensing: micro - gravitational lensing: micro

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 OGLE-2016-BLG-1003 * 17 36 25.23 -27 11 19.9           ~ 11 0

Query : 2017ApJ...841...75J

Basic data :
OGLE-2016-BLG-1003 -- Star
Other object types: otypes_help 		* (), Lev (OGLE)
ICRS coord. (ep=J2000) : 		17 36 25.23 -27 11 19.9 [ ] D 2017ApJ...841...75J
FK4 coord. (ep=B1950 eq=1950) : 		17 33 17.35 -27 09 30.1 [ ]
Gal coord. (ep=J2000) : 		000.40905 +02.64650 [ ]
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Identifiers (1) :
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OGLE-2016-BLG-1003

References (11 between 1850 and 2026) (Total 11)
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