SIMBAD references

2019AJ....157...74A - Astron. J., 157, 74-74 (2019/February-0)

Qatar exoplanet survey: Qatar-7b - A very hot Jupiter orbiting a metal-rich F-star.

ALSUBAI K., TSVETANOV Z.I., LATHAM D.W., BIERYLA A., PYRZAS S., MISLIS D., ESQUERDO G.A., ESAMDIN A., LIU J., MA L., BRETTON M., PALLE E., MURGAS F., VILCHEZ N.P.E., MORTON T.D., PARVIAINIEN H., MONTANES-RODRIGUEZ P., NARITA N., FUKUI A., KUSAKABE N. and TAMURA M.

Abstract (from CDS):

We present the discovery of Qatar-7b-a very hot and inflated giant gas planet orbiting close to its parent star. The host star is a relatively massive main-sequence F-star with mass and radius M*=1.41±0.03M and R*=1.56±0.02R, respectively, at a distance d = 726 ± 26 pc, and an estimated age ∼1 Gyr. With its orbital period of P = 2.032 days, the planet is located less than five stellar radii from its host star and is heated to a high temperature Teq ≃ 2100 K. From a global solution to the available photometric and radial velocity observations, we calculate the mass and radius of the planet to be MP = 1.88 ± 0.25 MJ and RP = 1.70 ± 0.03 RJ, respectively. The planet radius and equilibrium temperature put Qatar-7b in the top 6% of the hottest and largest known exoplanets. With its large radius and high temperature, Qatar-7b is a valuable addition to the short list of targets that offer the best opportunity for studying their atmospheres through transmission spectroscopy.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - planets and satellites: detection - planets and satellites: fundamental parameters - techniques: photometric

Simbad objects: 10

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2022.11.27-03:27:53

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