학술논문
The TESS-Keck Survey. XVI. Mass Measurements for 12 Planets in Eight Systems
Document Type
Working Paper
Author
Murphy, Joseph M. Akana; Batalha, Natalie M.; Scarsdale, Nicholas; Isaacson, Howard; Ciardi, David R.; Gonzales, Erica J.; Giacalone, Steven; Twicken, Joseph D.; Dattilo, Anne; Fetherolf, Tara; Rubenzahl, Ryan A.; Crossfield, Ian J. M.; Dressing, Courtney D.; Fulton, Benjamin; Howard, Andrew W.; Huber, Daniel; Kane, Stephen R.; Petigura, Erik A.; Robertson, Paul; Roy, Arpita; Weiss, Lauren M.; Beard, Corey; Chontos, Ashley; Dai, Fei; Rice, Malena; Van Zandt, Judah; Lubin, Jack; Blunt, Sarah; Polanski, Alex S.; Behmard, Aida; Dalba, Paul A.; Hill, Michelle L.; Rosenthal, Lee J.; Brinkman, Casey L.; Mayo, Andrew W.; Turtelboom, Emma V.; Angelo, Isabel; Močnik, Teo; MacDougall, Mason G.; Pidhorodetska, Daria; Tyler, Dakotah; Kosiarek, Molly R.; Holcomb, Rae; Louden, Emma M.; Hirsch, Lea A.; Anderson, Jay; Valenti, Jeff A.
Source
Subject
Language
Abstract
With JWST's successful deployment and unexpectedly high fuel reserves, measuring the masses of sub-Neptunes transiting bright, nearby stars will soon become the bottleneck for characterizing the atmospheres of small exoplanets via transmission spectroscopy. Using a carefully curated target list and more than two years' worth of APF-Levy and Keck-HIRES Doppler monitoring, the TESS-Keck Survey is working toward alleviating this pressure. Here we present mass measurements for 11 transiting planets in eight systems that are particularly suited to atmospheric follow-up with JWST. We also report the discovery and confirmation of a temperate super-Jovian-mass planet on a moderately eccentric orbit. The sample of eight host stars, which includes one subgiant, spans early-K to late-F spectral types ($T_\mathrm{eff} =$ 5200--6200 K). We homogeneously derive planet parameters using a joint photometry and radial velocity modeling framework, discuss the planets' possible bulk compositions, and comment on their prospects for atmospheric characterization.
Comment: Accepted for publication in The Astronomical Journal on 2023-Jun-22. 60 pages, 17 Tables, 28 Figures
Comment: Accepted for publication in The Astronomical Journal on 2023-Jun-22. 60 pages, 17 Tables, 28 Figures