2007ApJ...656..552B

Query : 2007ApJ...656..552B

2007ApJ...656..552B - Astrophys. J., 656, 552-559 (2007/February-2)

HAT-P-1b: a large-radius, low-density exoplanet transiting one member of a stellar binary.

BAKOS G.A., NOYES R.W., KOVACS G., LATHAM D.W., SASSELOV D.D., TORRES G., FISCHER D.A., STEFANIK R.P., SATO B., JOHNSON J.A., PAL A., MARCY G.W., BUTLER R.P., ESQUERDO G.A., STANEK K.Z., LAZAR J., PAPP I., SARI P. and SIPOCZ B.

Abstract (from CDS):

Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402. This system is a pair of G0 main-sequence stars with age about 3 Gyr at a distance of ∼139 pc and projected separation of ∼1550 AU. The transit signal has a period of 4.46529 days and depth of 0.015 mag. From follow-up photometry and spectroscopy, we find that the object is a ``hot Jupiter'' planet with mass about 0.53MJand radius ∼1.36RJtraveling in an orbit with semimajor axis 0.055 AU and inclination about 85.9°, thus transiting the star at impact parameter 0.74 of the stellar radius. Based on a data set spanning 3 yr, ephemerides for the transit center are TC=2453984.397+Ntrx4.46529. The planet, designated HAT-P-1b, appears to be at least as large in radius, and smaller in mean density, than any previously known planet.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: General - Stars: Planetary Systems - stars: individual (ADS 16402AB)

Nomenclature: HAT-P N (No. 1), HAT-P Na (No. 1b).

Simbad objects: 15

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Number of rows : 15
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 OGLE-TR-132b Pl 10 50 34.5943868112 -61 57 26.138690064           ~ 105 1
2 NAME OGLE-TR-113b Pl 10 52 24.2810533560 -61 26 48.845675976           ~ 120 1
3 NAME OGLE-TR-111b Pl 10 53 17.8069115424 -61 24 20.607791112           ~ 114 1
4 BD+28 2507b Pl 16 02 11.8462322592 +28 10 10.420201452           ~ 195 1
5 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
6 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 267 1
7 NAME OGLE-TR-10b Pl 17 51 28.2593510544 -29 52 35.231024064           ~ 90 1
8 NAME OGLE-TR-56b Pl 17 56 35.5016678064 -29 32 21.479240220           ~ 202 1
9 NAME V672 Lyr b Pl 19 04 09.8515616256 +36 37 57.446680296           ~ 354 1
10 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
11 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
12 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
13 BD+37 4734A PM* 22 57 45.9211330656 +38 40 27.199869600   10.29 9.75     F8 26 0
14 NAME BD+37 4734Bb Pl 22 57 46.8442481880 +38 40 30.358351704           ~ 268 1
15 BD+37 4734B PM* 22 57 46.8442481880 +38 40 30.358351704   10.82 9.87     G0V 189 1

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