TY - JOUR
T1 - Qatar Exoplanet Survey
T2 - Qatar-7b - A Very Hot Jupiter Orbiting a Metal-rich F-Star
AU - Alsubai, Khalid
AU - Tsvetanov, Zlatan I.
AU - Latham, David W.
AU - Bieryla, Allyson
AU - Pyrzas, Stylianos
AU - Mislis, Dimitris
AU - Esquerdo, Gilbert A.
AU - Esamdin, Ali
AU - Liu, Jinzhong
AU - Ma, Lu
AU - Bretton, Marc
AU - Pallé, Enric
AU - Murgas, Felipe
AU - Vilchez, Nicolas P.E.
AU - Morton, Timothy D.
AU - Parviainien, Hannu
AU - Montañes-Rodriguez, Pilar
AU - Narita, Norio
AU - Fukui, Akihiko
AU - Kusakabe, Nobuhiko
AU - Tamura, Motohide
N1 - Publisher Copyright:
© 2019. The American Astronomical Society. All rights reserved.
PY - 2019/2
Y1 - 2019/2
N2 - 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 ± 0.03 M ⊙ and R ∗ = 1.56 ± 0.02 R ⊙ , 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 T eq ≈ 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 M P = 1.88 ± 0.25 M J and R P = 1.70 ± 0.03 R J , 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.
AB - 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 ± 0.03 M ⊙ and R ∗ = 1.56 ± 0.02 R ⊙ , 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 T eq ≈ 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 M P = 1.88 ± 0.25 M J and R P = 1.70 ± 0.03 R J , 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.
KW - planetary systems
KW - planets and satellites: detection
KW - planets and satellites: fundamental parameters
KW - techniques: photometric
UR - https://www.scopus.com/pages/publications/85062908185
U2 - 10.3847/1538-3881/aaf80a
DO - 10.3847/1538-3881/aaf80a
M3 - Article
AN - SCOPUS:85062908185
SN - 0004-6256
VL - 157
JO - Astronomical Journal
JF - Astronomical Journal
IS - 2
M1 - 74
ER -