HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune–Jupiter Mass Range

Brahm, R. and Hartman, J. D. and Jordan, A. and Bakos, G. A. and Espinoza, N. and Rabus, M. and Bhatti, W. and Penev, K. and Sarkis, P. and Suc, V. and Csubry, Z. and Bayliss, D. and Bento, J. and Zhou, G. ORCID: https://orcid.org/0000-0002-4891-3517 and Mancini, L. and Henning, T. and Ciceri, S. and de Val-Borro, M. and Shectman, S. and Crane, J. D. and Arriagada, P. and Butler, P. and Teske, J. and Thompson, I. and Osip, D. and Diaz, M. and Schmidt, B. and Lazar, J. and Papp, I. and Sari, P. (2018) HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune–Jupiter Mass Range. The Astronomical Journal, 155 (3):112. pp. 1-18. ISSN 0004-6256

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Abstract

We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 MJ, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 08 Feb 2022 04:43
Last Modified: 14 Feb 2022 00:36
Uncontrolled Keywords: planetary systems; stars: individual: (HATS-43, HATS-44, HATS-45, HATS-46); Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar 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/aaa898
URI: http://eprints.usq.edu.au/id/eprint/44970

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