[en] 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).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Zhou, G.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Huang, C. X.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Bakos, G. Á.; Department of Astrophysical Sciences, Princeton University, NJ 08544, USA ; Konkoly Observatory, Hungary
Hartman, J. D.; Department of Astrophysical Sciences, Princeton University, NJ 08544, USA
Latham, David W.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Quinn, S. N.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Collins, K. A.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Winn, J. N.; Department of Astrophysical Sciences, Princeton University, NJ 08544, USA
Wong, I.; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Kovács, G.; Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, 1121 Konkoly Thege ut. 15-17, Hungary
Csubry, Z.; Department of Astrophysical Sciences, Princeton University, NJ 08544, USA
Bhatti, W.; Department of Astrophysical Sciences, Princeton University, NJ 08544, USA
Penev, K.; Physics Department, University of Texas at Dallas, 800 W Campbell Road MS WT15, Richardson, TX 75080, USA
Bieryla, A.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Esquerdo, G. A.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Berlind, P.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Calkins, M. L.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
de Val-Borro, M.; Astrochemistry Laboratory, Goddard Space Flight Center, NASA, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
Noyes, R. W.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Lázár, J.; Hungarian Astronomical Association, 1451 Budapest, Hungary
Papp, I.; Hungarian Astronomical Association, 1451 Budapest, Hungary
Sári, P.; Hungarian Astronomical Association, 1451 Budapest, Hungary
Kovács, T.; Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, 1121 Konkoly Thege ut. 15-17, Hungary
Buchhave, Lars A.; DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, Denmark
Szklenar, T.; Hungarian Astronomical Association, 1451 Budapest, Hungary
Béky, B.; Google Inc, USA
Johnson, M. C.; Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA
Cochran, W. D.; McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA
Kniazev, A. Y.; South African Astronomical Observatory, PO Box 9, 7935 Observatory, Cape Town, South Africa ; Southern African Large Telescope Foundation, PO Box 9, 7935 Observatory, Cape Town, South Africa
Stassun, K. G.; Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235, USA ; Department of Physics, Fisk University, 1000 17th Avenue North, Nashville, TN 37208, USA
Fulton, B. J.; Caltech/IPAC-NExScI, 1200 East California Boulevard, Pasadena, CA 91125, USA
Shporer, A.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Espinoza, N.; Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany ; Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile ; Millennium Institute of Astrophysics (MAS), Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile
Bayliss, D.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Everett, M.; National Optical Astronomy Observatory, Tucson, AZ, USA
Howell, S. B.; NASA Ames Research Center, Moffett Field, CA 94035, USA
Hellier, C.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Anderson, D. R.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK ; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Collier Cameron, A.; SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
West, R. G.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Brown, D. J. A.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Schanche, N.; SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Barkaoui, K.; Astrobiology Research Unit, University of Liége, Belgium ; Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University, Marrakech, Morocco
Pozuelos Romero, Francisco José ; Space Sciences, Technologies and Astrophysics Research (STAR) Institute, University of Liége, Belgium
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
Jehin, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Benkhaldoun, Z.; Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University, Marrakech, Morocco
Daassou, A.; Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University, Marrakech, Morocco
Ricker, G.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Vanderspek, R.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Seager, S.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA ; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA ; Department of Aeronautics and Astronautics, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
Jenkins, J. M.; NASA Ames Research Center, Moffett Field, CA 94035, USA
Lissauer, Jack J.; NASA Ames Research Center, Moffett Field, CA 94035, USA
Armstrong, J. D.; Institute for Astronomy, University of Hawaii, 34 Ohia Ku Street, Pukalani, Maui, HI 96768, USA
Collins, K. I.; Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235, USA
Gan, T.; Physics Department and Tsinghua Centre for Astrophysics, Tsinghua University, Beijing 100084, People's Republic of China
Hart, R.; Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
Horne, K.; SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Kielkopf, J. F.; Department of Physics and Astronomy, University of Louisville, Louisville, KY 40292, USA
Nielsen, L. D.; Observatoire de Genéve, Université de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
Narita, N.; Department of Astronomy, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan ; Astrobiology Center, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; JST, PRESTO, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan ; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain
Palle, E.; Instituto de Astrofísica de Canarias (IAC), E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna (ULL), E-38206, La Laguna, Tenerife, Spain
Relles, H. M.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
Sefako, R.; South African Astronomical Observatory, PO Box 9, 7935 Observatory, Cape Town, South Africa
Tan, T. G.; Perth Exoplanet Survey Telescope, Perth, Western Australia
Davies, M.; NASA Ames Research Center, Moffett Field, CA 94035, USA
Goeke, Robert F.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Guerrero, N.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Haworth, K.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Villanueva, S.; Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA ; )
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