Planet Qatar-2 b

Name Qatar-2 b
Planet Status Confirmed
Discovered in 2011
Mass 2.494 ( -0.054 +0.054 ) MJ
Mass*sin(i)
Semi-Major Axis 0.02153 ( -0.0002 +0.0002 ) AU
Orbital Period 1.33711647 ( -2.6e-07 +2.6e-07 ) day
Eccentricity 0.0
ω
Tperi
Radius 1.254 ( -0.013 +0.013 ) RJ
Inclination 86.12 ( -0.08 +0.08 ) deg
Update 2021-02-05
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Primary transit 2455624.26679 (± 0.00011) JD
Secondary transit
λ 15.0 (± 20.0) deg
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 558.7 ( -5.9 +5.9 ) m/s
Calculated temperature 1344.0 ( -14.0 +14.0 ) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names 2MASS J13503740-0648145 b, EPIC 212756297.01, GSC 04974-00112 b, WISE J135037.33-064814.5 b

Star

Qatar-2
Name Qatar-2
Distance 182.32 ( -1.21 +1.21 ) pc
Spectral type K
Apparent magnitude V 13.3
Mass 0.74 (± 0.037) MSun
Age 5.0 Gyr
Effective temperature 4645.0 (± 50.0) K
Radius 0.78 ( -0.01 +0.01 ) RSun
Metallicity [Fe/H] 0.02 ( -0.08 +0.08 )
Detected Disc
Magnetic Field
RA2000 13:50:37.4
Dec2000 -06:48:15
Alternate Names 2MASS J13503740-0648145, EPIC 212756297, GSC 04974-00112, WISE J135037.33-064814.5
Planetary system 1 planet

Remarks

Alias 2MASS 13503740-0648145

More data


Related publications

A New Analysis of 8 Spitzer Phase Curves and Hot Jupiter Population Trends: Qatar-1b, Qatar-2b, WASP-52b, WASP-34b, and WASP-140b
2022 MAY E., STEVENSON K., BEAN J., BELL T., COWAN N. et al.
Astron. J., 163, 256
paper   arxiv  

Homogeneously derived transit timings for 17 exoplanets and reassessed TTV trends for WASP-12 and WASP-4
2019 BALUEV R., SOKOV E., JONES H., SHAIDULIN V., SOKOVA I. et al.
MNRAS, 490, 1294
paper  arxiv  

Activity induced variation in spin-orbit angles as derived from Rossiter-McLaughlin measurements
2018 OSHAGH M., TRIAUD A., BURDANOV A., FIGUEIRA P., REINERS A. et al.
Astron. & Astrophys., 619, A150
paper  arxiv  

The stellar obliquity, planet mass, and very low albedo of Qatar-2 from K2 Photometry
2017 DAI, F., WINN, J., YU, L. & S. ALBRECHT
Astron. J., 153, 40
paper  arxiv  ADS  

The GAPS Programme with HARPS-N at TNG. XIII. The orbital obliquity of three close-in massive planets hosted by dwarf K-type stars: WASP-43, HAT-P-20 and Qatar-2
2017 ESPOSITO M., COVINO E., DESIDERA S., MANCINI L., NASCIMBENI V. et al.
Astron. & Astrophys., 601, A63
paper  arxiv  ADS

Transiting exoplanet candidates from K2 Campaigns 5 and 6
2016 POPE B., PARVIAINEN H. & AIGRAIN S.
MNRAS, 461, 3399
arxiv   paper   ADS  

Recurring sets of recurring starspots on exoplanet-host Qatar-2
2016 MOČNIK, T., SOUTHWORTH, J. & C. HELLIER
arxiv  paper   ADS  

A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars
2015 MAXTED P., SERENELLI A. & SOUTHWORTH J.
Astron. & Astrophys., accepted
arxiv  

Physical properties, star-spot activity, orbital obliquity and transmission spectrum of the Qatar-2 planetary system from multicolour photometry
2014 MANCINI L., SOUTHWORTH J., CICERI S., TREGLOAN-REED J., CROSSFIELD I. et al.
Monthly Notices of the Royal Astronomical Society, 443, 2391
ADS

Qatar-2: A K Dwarf Orbited by a Transiting Hot Jupiter and a Longer-Period Massive Planet
2012 BYAN M., ALSUBAI K., LATHAM D., QUINN S., COLLIER-CAMERON A. & 2 additional authors
BAAS, 44, no1, 339.14
abstract

Factors Affecting the Radii of Close-in Transiting Exoplanets
2012 ENOCH B., COLLIER CAMERON A. & HORNE K.
Astron. & Astrophys., 540, A99
paper   arxiv   ADS  

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
paper  arxiv

Qatar-2: A K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit
2011 BRYAN M., ALSUBAI K., LATHAM D., PARLEY N., COLLIER-CAMERON A. & 21 additional authors
ApJ. Letters
arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5