2012AJ....143...95L

Query : 2012AJ....143...95L

2012AJ....143...95L - Astron. J., 143, 95 (2012/April-0)

The sub-Saturn mass transiting planet HAT-P-12b.

LEE J.W., YOUN J.-H., KIM S.-L., LEE C.-U. and HINSE T.C.

Abstract (from CDS):

We present new photometric data of the transiting planet HAT-P-12b observed in 2011. Our three transit curves are modeled using the JKTEBOP code and adopting the quadratic limb-darkening law. Including our measurements, 18 transit times spanning about 4.2 yr were used to determine the improved ephemeris with a transit epoch of 2,454,187.85560±0.00011 BJD and an orbital period of 3.21305961±0.00000035 days. The physical properties of the star-planet system are computed using empirical calibrations from eclipsing binary stars and stellar evolutionary models, combined with both our transit parameters and previously known spectroscopic results. We found that the absolute dimensions of the host star are MA= 0.73±0.02 M☉, RA= 0.70±0.01 R☉, log gA= 4.61±0.02, ρA= 2.10±0.09 ρ☉, and LA= 0.21±0.01 L☉. The planetary companion has Mb= 0.21±0.01 MJup, Rb= 0.94±0.01 RJup, log gb= 2.77±0.02, ρb= 0.24±0.01 ρJup, and Teq= 960±14 K. Our results agree well with standard models of irradiated gas giants with a core mass of 11.3 M⊕.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: individual: HAT-P-12 - techniques: photometric

VizieR on-line data: <Available at CDS (J/AJ/143/95): table2.dat>

Simbad objects: 18

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Number of rows : 18
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 HAT-P-19b Pl 00 38 04.0135699416 +34 42 41.553538560           ~ 74 1
2 HAT-P-12b Pl 13 57 33.4668726399 +43 29 36.601508739           ~ 201 1
3 HAT-P-12 PM* 13 57 33.4668726399 +43 29 36.601508739   13.851 12.766 12.428   K5 113 1
4 V* V636 Cen EB* 14 16 57.9122377992 -49 56 42.372930480   9.70 9.09     G0V 102 0
5 WASP-39b Pl 14 29 18.4151689656 -03 26 40.204480380           ~ 345 1
6 WASP-39 * 14 29 18.4151689656 -03 26 40.204480380   12.93 12.09 12.17 11.29 ~ 106 1
7 WASP-37 * 14 47 46.5619510032 +01 03 53.799541704   13.304 12.704 12.87 12.24 G2V 45 1
8 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
9 HAT-P-18b Pl 17 05 23.1475097496 +33 00 44.940001716           ~ 153 1
10 HAT-P-18 Em* 17 05 23.1475097496 +33 00 44.940001716   11.9   12.61   K2V 81 1
11 TrES-3 Pl 17 52 07.0184259768 +37 32 46.237377840           ~ 245 2
12 Kepler-9c Pl 19 02 17.7544327200 +38 24 03.176851896           ~ 109 1
13 Kepler-9b Pl 19 02 17.7544327200 +38 24 03.176851896           ~ 121 1
14 Kepler-16b Pl 19 16 18.1758378936 +51 45 26.782726104           ~ 178 1
15 CoRoT-8b Pl 19 26 21.2425572360 +01 25 35.177500524           ~ 59 1
16 WASP-21 * 23 09 58.2534443016 +18 23 45.885822792   12.12 11.55 11.52   G3V 71 1
17 WASP-21b Pl 23 09 58.2534443016 +18 23 45.885822792           ~ 71 1
18 CD-40 15273b Pl 23 51 31.0839097560 -39 54 24.258188484           ~ 88 1

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