Exoplanets, -moons, -comets

A Swarm Of WASP Planets: Nine Giant Planets Identified By The WASP Survey

By Keith Cowing

Status Report

astro-ph.EP

April 14, 2025

Filed under astro-ph.EP, astronomy, exoplanet, gas giant, hot jupiter, Spectroscopy, TESS, WASP, WASP-102 b, WASP-116 b, WASP-149 b, WASP-154 b, WASP-155 b, WASP-188 b, WASP-194 b/HAT-P-71 b, WASP-195 b, WASP-197 b

A Swarm Of WASP Planets: Nine Giant Planets Identified By The WASP Survey — Spectral energy distributions of WASP-102 (top row left), WASP-116 (top row middle), WASP-149 (top row right), WASP-154 (second row left), WASP-155 (second row middle), WASP-188 (second row right), WASP-194 (bottom row left), WASP-195 (bottom row middle), and WASP-197 (bottom row right). Red symbols represent the observed photometric measurements, where the horizontal bars represent the effective width of the pass-band. Blue symbols are the model fluxes from the best-fit PHOENIX atmosphere model (black). The absolute flux-calibrated Gaia spectrum is shown as a grey swathe in the inset figure. — astro-ph.EP

The Wide Angle Search for Planets (WASP) survey provided some of the first transiting hot Jupiter candidates. With the addition of the Transiting Exoplanet Survey Satellite (TESS), many WASP planet candidates have now been revisited and given updated transit parameters.

Here we present 9 transiting planets orbiting FGK stars that were identified as candidates by the WASP survey and measured to have planetary masses by radial velocity measurements. Subsequent space-based photometry taken by TESS as well as ground-based photometric and spectroscopic measurements have been used to jointly analyze the planetary properties of WASP-102 b, WASP-116 b, WASP-149 b WASP-154 b, WASP-155 b, WASP-188 b, WASP-194 b/HAT-P-71 b, WASP-195 b, and WASP-197 b.

These planets have radii between 0.9 R_{_Jup} and 1.4 R_{_Jup}, masses between 0.1 M_{_Jup} and 1.5 M_{_Jup}, and periods between 1.3 and 6.6 days.

Nicole Schanche, Guillaume Hébrard, Keivan G. Stassun, Benjamin J. Hord, Khalid Barkaoui, Allyson Bieryla, David R. Ciardi, Karen A. Collins, Andrew Collier Cameron, Joel Hartman, N. Heidari, Coel Hellier, Steve B. Howell, Monika Lendl, James McCormac, Kim K. McLeod, Hannu Parviainen, Don J. Radford, Arvind Singh Rajpurohit, Howard M. Relles, Rishikesh Sharma, Sanjay Baliwal, Gaspar Bakos, Susana Barros, François Bouchy, Artem Y. Burdanov, Polina A. Budnikova, Abhijit Chakaraborty, Catherine Clark, Laetitia Delrez, O.D.S. Demangeon, Rodrigo Diaz, Jonah Donnenfield, Mark Everett, Michaël Gillon, Christina Hedges, Jesus Higuera, Emmanuel Jehin, Jon M. Jenkins, Flavien Kiefer, Didier Laloum, Mike Lund, Pierre Magain, Pierre Maxted, Ismael Mireles, K.J. Nikitha, Cyrielle Opitom, Yatrik Patel, Mark Rose, Sergio Sousa, Ivan Strakhov, Paul Strøm, Amy Tuson, Richard West, Joshua Winn

Comments: Accepted to Astronomical Journal
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2504.08091 [astro-ph.EP] (or arXiv:2504.08091v1 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2504.08091
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Submission history
From: Nicole Schanche
[v1] Thu, 10 Apr 2025 19:39:55 UTC (9,109 KB)
https://arxiv.org/abs/2504.08091
Astrobiology

Keith Cowing

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻

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