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
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Homogeneously derived transit timings for 17 exoplanets and reassessed TTV trends for WASP-12 and WASP-4
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2018 OSHAGH M., TRIAUD A., BURDANOV A., FIGUEIRA P., REINERS A. et al.
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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.
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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., 577, A90
paper   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.
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2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
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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