TRANSIT TIMING VARIATION ANALYSIS OF OGLE-TR-132b WITH SEVEN NEW TRANSITS

被引:7
作者
Adams, E. R. [1 ,2 ]
Lopez-Morales, M. [3 ]
Elliot, J. L. [2 ,4 ,5 ]
Seager, S. [2 ,4 ]
Osip, D. J. [6 ]
机构
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA
[3] Fac Ciencies, Inst Ciencies Espai CSIC IEEC, E-08193 Barcelona, Spain
[4] MIT, Dept Phys, Cambridge, MA 02139 USA
[5] Lowell Observ, Flagstaff, AZ 86001 USA
[6] Carnegie Observ, Las Campanas Observ, La Serena, Chile
关键词
planetary systems; stars: individual (OGLE-TR-132); STELLAR ATMOSPHERE MODELS; LIMB-DARKENING LAW; EXTRASOLAR PLANETS; TERRESTRIAL PLANETS; SURFACE GRAVITIES; LIGHT CURVES; MASS; SYSTEMS; BINARY; PHOTOMETRY;
D O I
10.1088/0004-637X/728/2/125
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the results of the first transit timing variation analysis of the very hot Jupiter OGLE-TR-132b, using 10 transits collected over a seven-year period. Our analysis combines three previously published transit light curves with seven new transits, which were observed between 2008 February and 2009 May with the new MagIC-e2V instrument on the Magellan Telescopes in Chile. We provide a revised planetary radius of R-p = 1.23 +/- 0.07R(J), which is slightly larger, but consistent within the errors, than that given by previously published results. Analysis of the planet-to-star radius ratio, orbital separation, inclination, and transit duration reveals no apparent variation in any of those parameters during the time span observed. We also find no sign of transit timing variations larger than -108 +/- 49s, with most residuals very close to zero. This allows us to place an upper limit of 5-10 M-circle plus for a coplanar, low-eccentricity perturber in either the 2:1 or 3:2 mean-motion resonance with OGLE-TR-132b. We similarly find that the data are entirely consistent with a constant orbital period and there is no evidence for orbital decay within the limits of precision of our data.
引用
收藏
页数:9
相关论文
共 38 条
[1]   SIX HIGH-PRECISION TRANSITS OF OGLE-TR-113b [J].
Adams, E. R. ;
Lopez-Morales, M. ;
Elliot, J. L. ;
Seager, S. ;
Osip, D. J. .
ASTROPHYSICAL JOURNAL, 2010, 721 (02) :1829-1834
[2]   LACK OF TRANSIT TIMING VARIATIONS OF OGLE-TR-111b: A RE-ANALYSIS WITH SIX NEW EPOCHS [J].
Adams, E. R. ;
Lopez-Morales, M. ;
Elliot, J. L. ;
Seager, S. ;
Osip, D. J. .
ASTROPHYSICAL JOURNAL, 2010, 714 (01) :13-24
[3]  
Adams E. R., 2010, PhD thesis
[4]   On detecting terrestrial planets with timing of giant planet transits [J].
Agol, E ;
Steffen, J ;
Sari, R ;
Clarkson, W .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 359 (02) :567-579
[5]   Stability limits in extrasolar planetary systems [J].
Barnes, Rory ;
Greenberg, Richard .
ASTROPHYSICAL JOURNAL, 2006, 647 (02) :L163-L166
[6]   Observational consequences of the recently proposed Super-Earth orbiting GJ 436 [J].
Bean, J. L. ;
Seifahrt, A. .
ASTRONOMY & ASTROPHYSICS, 2008, 487 (02) :L25-L28
[7]   Two new "very hot Jupiters" among the OGLE transiting candidates [J].
Bouchy, F ;
Pont, F ;
Santos, NC ;
Melo, C ;
Mayor, M ;
Queloz, D ;
Udry, S .
ASTRONOMY & ASTROPHYSICS, 2004, 421 (01) :L13-L16
[8]   PARAMETER ESTIMATION FROM TIME-SERIES DATA WITH CORRELATED ERRORS: A WAVELET-BASED METHOD AND ITS APPLICATION TO TRANSIT LIGHT CURVES [J].
Carter, Joshua A. ;
Winn, Joshua N. .
ASTROPHYSICAL JOURNAL, 2009, 704 (01) :51-67
[9]  
Claret A, 2000, ASTRON ASTROPHYS, V363, P1081
[10]   A new non-linear limb-darkening law for LTE stellar atmosphere models III -: Sloan filters:: Calculations for -5.0≤log [M/H]≤+1, 2000 K≤Teff≤50000 K at several surface gravities [J].
Claret, A .
ASTRONOMY & ASTROPHYSICS, 2004, 428 (03) :1001-1005