2013A&A...558A..55M


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST23:49:34

2013A&A...558A..55M - Astronomy and Astrophysics, volume 558A, 55-55 (2013/10-1)

HATS-2b: a transiting extrasolar planet orbiting a K-type star showing starspot activity.

MOHLER-FISCHER M., MANCINI L., HARTMAN J.D., BAKOS G.A., PENEV K., BAYLISS D., JORDAN A., CSUBRY Z., ZHOU G., RABUS M., NIKOLOV N., BRAHM R., ESPINOZA N., BUCHHAVE L.A., BEKY B., SUC V., CSAK B., HENNING T., WRIGHT D.J., TINNEY C.G., ADDISON B.C., SCHMIDT B., NOYES R.W., PAPP I., LAZAR J., SARI P. and CONROY P.

Abstract (from CDS):

We report the discovery of HATS-2b, the second transiting extrasolar planet detected by the HATSouth survey. HATS-2b is moving on a circular orbit around a V=13.6mag, K-type dwarf star (GSC 6665-00236), at a separation of 0.0230±0.0003 AU and with a period of 1.3541 days. The planetary parameters have been robustly determined using a simultaneous fit of the HATSouth, MPG/ESO 2.2m/GROND, Faulkes Telescope South/Spectral transit photometry, and MPG/ESO 2.2m/FEROS, Euler 1.2m/CORALIE, AAT 3.9m/CYCLOPS radial-velocity measurements. HATS-2b has a mass of 1.37±0.16MJ, a radius of 1.14±0.03RJ, and an equilibrium temperature of 1567±30K. The host star has a mass of 0.88±0.04M and a radius of 0.89±0.02R, and it shows starspot activity. We characterized the stellar activity by analyzing two photometric follow-up transit light curves taken with the GROND instrument, both obtained simultaneously in four optical bands (covering the wavelength range of 3860-9520Å). The two light curves contain anomalies compatible with starspots on the photosphere of the host star along the same transit chord.

Abstract Copyright:

Journal keyword(s): planetary systems - techniques: spectroscopic - stars: fundamental parameters - techniques: photometric - stars: individual: HATS-2 - stars: individual: GSC 6665-00236

VizieR on-line data: <Available at CDS (J/A+A/558/A55): hats2_ft.dat hats2_g1.dat hats2_r1.dat hats2_i1.dat hats2_z1.dat hats2_g2.dat hats2_r2.dat hats2_i2.dat hats2_z2.dat>

Simbad objects: 20

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Number of rows : 20

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 WASP-32b Pl 00 15 50.8077849942 +01 12 01.586829951           ~ 24 1
2 WASP-45b Pl 00 20 56.9940389706 -35 59 53.747385579           ~ 20 1
3 HD 283750 BY* 04 36 48.2413370074 +27 07 55.898311812   9.354   7.4   K2.5Ve 250 2
4 HD 36705 TT* 05 28 44.8916324761 -65 26 55.289846904 8.259 7.856 6.999 6.496 5.993 K0V 908 0
5 * alf Gem C BY* 07 34 37.4475372002 +31 52 10.181030942 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 811 0
6 V* LQ Hya BY* 09 32 25.5684079124 -11 11 04.687410738 9.316 8.761 7.891 7.288 6.815 K1Vp 393 0
7 V* V557 Car BY* 10 42 41.5159999215 -64 21 04.332236022   11.26 12.03     G2V 49 0
8 HATS-2b Pl 11 46 57.3702861837 -22 33 46.816907262           ~ 11 1
9 HATS-2 * 11 46 57.3702861837 -22 33 46.816907262   14.53 13.62 13.40   ~ 21 1
10 HD 118100 Fl* 13 34 43.2063348511 -08 20 31.335294003 11.578 10.552 9.372 8.602 7.930 K5Ve 320 0
11 V* EK Dra BY* 14 39 00.2109485496 +64 17 29.977371998   8.243 7.604     G1.5V 367 0
12 V* BY Dra BY* 18 33 55.7719224141 +51 43 08.903033617 10.22 9.23   8.733   K4Ve+K7.5Ve 592 0
13 KIC 12396036 * 18 57 11.0562243989 +51 16 08.849559218   13.1 13.23 13.58   ~ 16 1
14 TrES-1 Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 307 1
15 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 274 1
16 NGC 6811 OpC 19 37 17 +46 23.3   7.47 6.8     ~ 232 0
17 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K0V+M4V 689 1
18 V* AU Mic BY* 20 45 09.5323695486 -31 20 27.241710746   10.05 8.627 9.078 6.593 M1VeBa1 868 0
19 V* EV Lac Fl* 22 46 49.7311740821 +44 20 02.372223230   11.85 10.26 9.89   M4.0V 777 2
20 * 51 Peg ** 22 57 27.9804167474 +20 46 07.782240714 6.39 6.16 5.46 4.97 4.61 G2IV 1058 1

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2019.10.17-23:49:34

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