2017MNRAS.466.2710R

Query : 2017MNRAS.466.2710R

2017MNRAS.466.2710R - Mon. Not. R. Astron. Soc., 466, 2710-2717 (2017/April-2)

Faint-source-star planetary microlensing: the discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb.

RATTENBURY N.J., BENNETT D.P., SUMI T., KOSHIMOTO N., BOND I.A., UDALSKI A., SHVARTZVALD Y., MAOZ D., JORGENSEN U.G., DOMINIK M., STREET R.A., TSAPRAS Y., ABE F., ASAKURA Y., BARRY R., BHATTACHARYA A., DONACHIE M., EVANS P., FREEMAN M., FUKUI A., HIRAO Y., ITOW Y., LI M.C.A., LING C.H., MASUDA K., MATSUBARA Y., MURAKI Y., NAGAKANE M., OHNISHI K., OYOKAWA H., SAITO T., SHARAN A., SULLIVAN D.J., SUZUKI D., TRISTRAM P.J., YONEHARA A., POLESKI R., SKOWRON J., MROZ P., SZYMANSKI M.K., SOSZYNSKI I., PIETRUKOWICZ P., KOZLOWSKI S., ULACZYK K., WYRZYKOWSKI L., FRIEDMANN M., KASPI S., ALSUBAI K., BROWNE P., ANDERSEN J.M., BOZZA V., CALCHI NOVATI S., DAMERDJI Y., DIEHL C., DREIZLER S., ELYIV A., GIANNINI E., HARDIS S., HARPSOE K., HINSE T.C., LIEBIG C., HUNDERTMARK M., JUNCHER D., KAINS N., KERINS E., KORHONEN H., MANCINI L., MARTIN R., MATHIASEN M., RABUS M., RAHVAR S., SCARPETTA G., SKOTTFELT J., SNODGRASS C., SURDEJ J., TAYLOR J., TREGLOAN-REED J., VILELA C., WAMBSGANSS J., WILLIAMS A., D'AGO G., BACHELET E., BRAMICH D.M., FIGUERA JAIMES R., HORNE K., MENZIES J., SCHMIDT R. and STEELE I.A.

Abstract (from CDS):

We report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and µ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) x 10–3. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09–1.12+1.02 MJ planet orbiting a 0.62–0.22+0.20 M☉ host star at a deprojected orbital separation of 4.40–1.46+2.16 au. The distance to the lens system is 2.22–0.83+0.96 kpc. Planet OGLE-2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational lensing: micro - planets and satellites: detection - planets and satellites: detection

Simbad objects: 8

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Number of rows : 8
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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
3 MOA 2014-BLG-175 LP? 17 52 24.4455472968 -30 32 54.995287956           ~ 9 0
4 MOA 2014-BLG-175b Pl 17 52 24.4455472968 -30 32 54.995287956           ~ 2 0
5 OGLE-2015-BLG-1319 * 17 57 46.40 -32 28 19.9           ~ 9 0
6 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
7 OGLE-2005-BLG-169 * 18 06 05.32 -30 43 57.5     20.4     ~ 68 1
8 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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