2017AJ....154..205M

Query : 2017AJ....154..205M

2017AJ....154..205M - Astron. J., 154, 205-205 (2017/November-0)

OGLE-2013-BLG-0132Lb and OGLE-2013-BLG-1721Lb: two Saturn-mass planets discovered around M-dwarfs.

MROZ P., UDALSKI A., BOND I.A., SKOWRON J., SUMI T., HAN C., SZYMANSKI M.K., SOSZYNSKI I., POLESKI R., PIETRUKOWICZ P., KOZLOWSKI S., WYRZYKOWSKI L., ULACZYK K. (The OGLE Collaboration), ABE F., ASAKURA Y., BARRY R.K., BENNETT D.P., BHATTACHARYA A., DONACHIE M., EVANS P., FUKUI A., HIRAO Y., ITOW Y., KOSHIMOTO N., LI M.C.A., LING C.H., MASUDA K., MATSUBARA Y., MURAKI Y., NAGAKANE M., OHNISHI K., RANC C., RATTENBURY N.J., SAITO T., SHARAN A., SULLIVAN D.J., SUZUKI D., TRISTRAM P.J., YAMADA T., YAMADA T., YONEHARA A. (The MOA Collaboration)

Abstract (from CDS):

We present the discovery of two planetary systems consisting of a Saturn-mass planet orbiting an M-dwarf, which were detected in faint microlensing events OGLE-2013-BLG-0132 and OGLE-2013-BLG-1721. The planetary anomalies were covered with high cadence by Optical Gravitational Lensing Experiment (OGLE) and Microlensing Observations in Astrophysics (MOA) photometric surveys. The light curve modeling indicates that the planet-to-host mass ratios are (5.15±0.28)×10–4 and (13.18±0.72)×10–4, respectively. Both events were too short and too faint to measure a reliable parallax signal and hence the lens mass. We therefore used a Bayesian analysis to estimate the masses of both planets: 0.29–0.13+0.16 MJup (OGLE-2013-BLG-0132Lb) and 0.64–0.31+0.35 MJup (OGLE-2013-BLG-1721Lb). Thanks to a high relative proper motion, OGLE-2013-BLG-0132 is a promising candidate for the high-resolution imaging follow-up. Both planets belong to an increasing sample of sub-Jupiter-mass planets orbiting M-dwarfs beyond the snow line.

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

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

Simbad objects: 11

goto Full paper

goto View the references in ADS

Number of rows : 11
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 EWS 2011-BLG-251b Pl 17 38 14.1795898344 -27 08 10.054235616           ~ 6 1
2 MOA 2013-BLG-618b Pl 17 52 30.370 -30 17 33.70           ~ 2 0
3 MOA 2013-BLG-618 * 17 52 30.370 -30 17 33.70           ~ 6 0
4 NAME EWS 2006-BLG-109b Pl 17 52 34.55 -30 05 15.7           ~ 46 1
5 MOA 2012-BLG-323b Pl 17 55 52.39 -29 49 06.7           ~ 5 0
6 MOA 2011-BLG-197b Pl 17 57 47.72 -27 23 40.3           ~ 3 0
7 MOA 2013-BLG-148b Pl 17 59 03.45552 -28 25 14.1348           ~ 2 0
8 MOA 2013-BLG-148 ** 17 59 03.45552 -28 25 14.1348           ~ 6 0
9 MOA 2010-BLG-353b Pl 18 05 12.940 -27 17 35.64           ~ 5 0
10 MOA 2012-BLG-288b Pl 18 05 57.720 -27 42 43.20           ~ 8 0
11 NAME Galactic Bulge reg ~ ~           ~ 4794 0

To bookmark this query, right click on this link: simbad:objects in 2017AJ....154..205M and select 'bookmark this link' or equivalent in the popup menu