2012ApJ...750...84B

Query : 2012ApJ...750...84B

2012ApJ...750...84B - Astrophys. J., 750, 84 (2012/May-1)

Qatar-2: a K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit.

BRYAN M.L., ALSUBAI K.A., LATHAM D.W., PARLEY N.R., COLLIER CAMERON A., QUINN S.N., CARTER J.A., FULTON B.J., BERLIND P., BROWN W.R., BUCHHAVE L.A., CALKINS M.L., ESQUERDO G.A., FURESZ G., JORGENSEN U.G., HORNE K.D., STEFANIK R.P., STREET R.A., TORRES G., WEST R.G., DOMINIK M., HARPSOE K.B.W., LIEBIG C., CALCHI NOVATI S., RICCI D. and SKOTTFELT J.F.

Abstract (from CDS):

We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, Pb= 1.34 days. The mass and radius of Qatar-2b are MP = 2.49 MJ and RP= 1.14 RJ, respectively. Radial-velocity monitoring of Qatar-2 over a span of 153 days revealed the presence of a second companion in an outer orbit. The Systemic Console yielded plausible orbits for the outer companion, with periods on the order of a year and a companion mass of at least several MJ. Thus, Qatar-2 joins the short but growing list of systems with a transiting hot Jupiter and an outer companion with a much longer period. This system architecture is in sharp contrast to that found by Kepler for multi-transiting systems, which are dominated by objects smaller than Neptune, usually with tightly spaced orbits that must be nearly coplanar.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: individual: Qatar-2 - techniques: photometric - techniques: radial velocities - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/ApJ/750/84): table1.dat table5.dat>

Errata: erratum vol. 782, art. 121 (2014)

Simbad objects: 27

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Number of rows : 27
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 HD 3765 PM* 00 40 49.2698857963 +40 11 13.823048636   8.30   6.8   K2V 281 0
2 * ups And c Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 163 1
3 * ups And e Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 33 1
4 * ups And d Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 171 1
5 * ups And b Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 284 1
6 BD+20 518 PM* 03 11 14.2301712744 +21 05 50.493993288   9.26 8.50     G6V 127 1
7 BD+20 518b Pl 03 11 14.2301712744 +21 05 50.493993288           ~ 27 1
8 BD+20 518c Pl 03 11 14.2301712744 +21 05 50.493993288           ~ 24 1
9 BD+20 518d Pl 03 11 14.2301712744 +21 05 50.493993288           ~ 15 1
10 WASP-22 * 03 31 16.3267124400 -23 49 10.840600632   12.38 11.99 11.41   G 78 1
11 HAT-P-13c Pl 08 39 31.8072358440 +47 21 07.273799280           ~ 53 1
12 HAT-P-13b Pl 08 39 31.8072358440 +47 21 07.273799280           ~ 128 1
13 Qatar 2 PM* 13 50 37.4100326640 -06 48 14.421574044   14.0   13.45   K5V 72 1
14 Qatar 2b Pl 13 50 37.4100326640 -06 48 14.421574044           ~ 55 1
15 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 845 1
16 HAT-P-31 * 18 06 09.0498478464 +26 25 35.989962204   12.02 11.67 11.49   ~ 38 2
17 HAT-P-31b Pl 18 06 09.0498478464 +26 25 35.989962204           ~ 41 1
18 HD 182488 PM* 19 23 34.0131683760 +33 13 19.078425912       5.8   K0V 306 1
19 CoRoT-2 * 19 27 06.4944378024 +01 23 01.359897468   13.422 12.568 12.204 11.49 G7V+K9V 267 2
20 HD 187123b Pl 19 46 58.1122487784 +34 25 10.281404460           ~ 94 1
21 HD 187123c Pl 19 46 58.1122487784 +34 25 10.281404460           ~ 39 1
22 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
23 HAT-P-17c Pl 21 38 08.7310010424 +30 29 19.446386748           ~ 14 1
24 HAT-P-17b Pl 21 38 08.7310010424 +30 29 19.446386748           ~ 102 1
25 HD 217107b Pl 22 58 15.5408995872 -02 23 43.383234768           ~ 101 1
26 HD 217107c Pl 22 58 15.5408995872 -02 23 43.383234768           ~ 68 1
27 CD-35 16019 PM* 23 59 36.0711872328 -35 01 52.923618408   10.49 9.87 9.91   G6 139 0

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