Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS

Zhou, G. ORCID: https://orcid.org/0000-0002-4891-3517 and Huang, C. X. ORCID: https://orcid.org/0000-0003-0918-7484 and Bakos, G. A. and Hartman, J. D. and Latham, David W. and Quinn, S. N. and Collins, K. A. and Winn, J. N. and Wong, I. and Kovacs, G. and Csubry, Z. and Bhatti, W. and Penev, K. and Bieryla, A. and Esquerdo, G. A. and Berlind, P. and Calkins, M. L. and de Val-Borro, M. and Noyes, R. W. and Lazar, J. and Papp, I. and Sari, P. and Kovacs, T. and Buchhave, Lars A. and Szklenar, T. and Beky, B. and Johnson, M. C. and Cochran, W. D. and Kniazev, A. Y. and Stassun, K. G. and Fulton, B. J. and Shporer, A. and Espinoza, N. and Bayliss, D. and Everett, M. and Howell, S. B. and Hellier, C. and Anderson, D. R. and Cameron, A. Collier and West, R. G. and Brown, D. J. A. and Schanche, N. and Barkaoui, K. and Pozuelos, F. and Gillon, M. and Jehin, E. and Benkhaldoun, Z. and Daassou, A. and Ricker, G. and Vanderspek, R. and Seager, S. and Jenkins, J. M. and Lissauer, Jack J. and Armstrong, J. D. and Collins, K. I. and Gan, T. and Hart, R. and Horne, K. and Kielkopf, J. F. and Nielsen, L. D. and Nishiumi, T. and Narita, N. and Palle, E. and Relles, H. M. and Sefako, R. and Tan, T. G. and Davies, M. and Goeke, Robert F. and Guerrero, N. and Haworth, K. and Villanueva, S. (2019) Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS. The Astronomical Journal, 158 (4):141. pp. 1-24. ISSN 0004-6256

[img]
Preview
Text (Accepted Version)
1906.00462.pdf

Download (2MB) | Preview

Abstract

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 M Jup and a radius of $ R Jup and resides in a prograde 4.79 day orbit. HAT-P-70 b has a radius of R Jup and a mass constraint of M Jup 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 mag = 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.


Statistics for USQ ePrint 45049
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Date Deposited: 09 Feb 2022 03:24
Last Modified: 14 Feb 2022 01:08
Uncontrolled Keywords: planetary systems; stars: individual (HAT-P-69, HAT-P-70, TIC379929661, TIC399870368); techniques: photometric; techniques: spectroscopic; Astrophysics - Earth and Planetary Astrophysics
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280120 Expanding knowledge in the physical sciences
Identification Number or DOI: https://doi.org/10.3847/1538-3881/ab36b5
URI: http://eprints.usq.edu.au/id/eprint/45049

Actions (login required)

View Item Archive Repository Staff Only