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Tytuł pozycji:

Two new HATNet hot Jupiters around A stars, and the first glimpse at the occurrence rate of hot Jupiters from TESS

Tytuł :
Two new HATNet hot Jupiters around A stars, and the first glimpse at the occurrence rate of hot Jupiters from TESS
Autorzy :
Zhou, G.
Huang, C. X.
Bakos, G. Á.
Hartman, J. D.
Latham, David W.
Quinn, S. N.
Collins, K. A.
Winn, J. N.
Wong, I.
Kovács, G.
Csubry, Z.
Bhatti, W.
Penev, K.
Bieryla, A.
Esquerdo, G. A.
Berlind, P.
Calkins, M. L.
de Val-Borro, M.
Noyes, R. W.
Lázár, J.
Papp, I.
Sári, P.
Kovács, T.
Buchhave, Lars A.
Szklenar, T.
Béky, B.
Johnson, M. C.
Cochran, W. D.
Kniazev, A. Y.
Stassun, K. G.
Fulton, B. J.
Shporer, A.
Espinoza, N.
Bayliss, D.
Everett, M.
Howell, S. B.
Hellier, C.
Anderson, D. R.
Collier Cameron, A.
West, R. G.
Brown, D. J. A.
Schanche, N.
Barkaoui, K.
Pozuelos, F.
Gillon, Michaël
Jehin, Emmanuel
Benkhaldoun, Z.
Daassou, A.
Ricker, G.
Vanderspek, R.
Seager, S.
Jenkins, J. M.
Lissauer, Jack J.
Armstrong, J. D.
Collins, K. I.
Gan, T.
Hart, R.
Horne, K.
Kielkopf, J. F.
Nielsen, L. D.
Nishiumi, T.
Narita, N.
Palle, E.
Relles, H. M.
Sefako, R.
Tan, T. G.
Davies, M.
Goeke, Robert F.
Guerrero, N.
Haworth, K.
Villanueva, S.
Pokaż więcej
Temat :
TIC379929661
TIC399870368
QC Physics
Aérospatiale, astronomie & astrophysique [Physique, chimie, mathématiques & sciences de la terre]
spectroscopic [Techniques]
Space science, astronomy & astrophysics [Physical, chemical, mathematical & earth Sciences]
individual (HAT-P-69,HAT-P-70, TIC379929661, TIC399870368) [Stars]
photometric [Techniques]
QB
Astrophysics - Earth and Planetary Astrophysics
QC
planetary systems
QB Astronomy
NDAS
individual: HAT-P-69 [stars]
HAT-P-70
anetary systems
Źródło :
Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS. Astronomical Journal, 158., United StatesAmerican Astronomical Society. (2019).
Rok publikacji :
2019
Kolekcja :
arXiv_org_e-Print_Archive
arXiv_org_e-Print_Archive_enriched
Opis pliku :
application/pdf
Język :
English
DOI :
10.3847/1538-3881/ab36b5
Numer akcesji :
edsair.dedup.wf.001..e715be10dd7f2d603c24f1dcbc67be98
Wide-field surveys for transiting planets are well suited to searching diverse stellar populations, enabling a better understanding of the link between the properties of planets and their parent stars. We report the discovery of HAT-P-69 b (TOI 625.01) and HAT-P-70 b (TOI 624.01), two new hot Jupiters around A stars from the Hungarian-made Automated Telescope Network (HATNet) survey that have also been observed by the Transiting Exoplanet Survey Satellite. HAT-P-69 b has a mass of {3.58}[SUB]-0.58[/SUB][SUP]+0.58[/SUP] M [SUB]Jup[/SUB] and a radius of {1.676}[SUB]-0.033[/SUB][SUP]+0.051[/SUP] R [SUB]Jup[/SUB] and resides in a prograde 4.79 day orbit. HAT-P-70 b has a radius of {1.87}[SUB]-0.10[/SUB][SUP]+0.15[/SUP] R [SUB]Jup[/SUB] and a mass constraint of < 6.78 (3σ ) M [SUB]Jup[/SUB] and resides in a retrograde 2.74 day orbit. We use the confirmation of these planets around relatively massive stars as an opportunity to explore the occurrence rate of hot Jupiters as a function of stellar mass. We define a sample of 47,126 main-sequence stars brighter than T [SUB]mag[/SUB] = 10 that yields 31 giant planet candidates, including 18 confirmed planets, 3 candidates, and 10 false positives. We find a net hot Jupiter occurrence rate of 0.41 ± 0.10% within this sample, consistent with the rate measured by Kepler for FGK stars. When divided into stellar mass bins, we find the occurrence rate to be 0.71 ± 0.31% for G stars, 0.43 ± 0.15% for F stars, and 0.26 ± 0.11% for A stars. Thus, at this point, we cannot discern any statistically significant trend in the occurrence of hot Jupiters with stellar mass. Based on observations obtained with the Hungarian-made Automated Telescope Network. Based in part on observations obtained with the Tillinghast Reflector 1.5 m telescope and the 1.2 m telescope, both operated by the Smithsonian Astrophysical Observatory at the Fred Lawrence Whipple Observatory in Arizona. This work makes use of the Smithsonian Institution High Performance Cluster (SI/HPC). Based in part on observations made with the Southern African Large Telescope (SALT).

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