Back to Search Start Over

TESS-Keck Survey XIV: Two giant exoplanets from the Distant Giants Survey

Authors :
Van Zandt, Judah E.
Petigura, Erik A.
MacDougall, Mason
Gilbert, Gregory J.
Lubin, Jack
Barclay, Thomas
Batalha, Natalie M.
Crossfield, Ian J. M.
Dressing, Courtney
Fulton, Benjamin
Howard, Andrew W.
Huber, Daniel
Isaacson, Howard
Kane, Stephen R.
Robertson, Paul
Roy, Arpita
Weiss, Lauren M.
Behmard, Aida
Beard, Corey
Chontos, Ashley
Dai, Fei
Dalba, Paul A.
Fetherolf, Tara
Giacalone, Steven
Henze, Christopher E.
Hill, Michelle L.
Hirsch, Lea A.
Holcomb, Rae
Howell, Steve B.
Jenkins, Jon M.
Latham, David W.
Mayo, Andrew
Mireles, Ismael
Mocnik, Teo
Murphy, Joseph M. Akana
Pidhorodetska, Daria
Polanski, Alex S.
Ricker, George R.
Rosenthal, Lee J.
Rubenzahl, Ryan A.
Seager, Sara
Scarsdale, Nicholas
Turtleboom, Emma V.
Vanderspek, Roland
Winn, Joshua N.
Publication Year :
2022

Abstract

We present the Distant Giants Survey, a three-year radial velocity (RV) campaign to measure P(DG|CS), the conditional occurrence of distant giant planets (DG; M_p ~ 0.3 - 13 M_J, P > 1 year) in systems hosting a close-in small planet (CS; R_p < 10 R_E). For the past two years, we have monitored 47 Sun-like stars hosting small transiting planets detected by TESS. We present the selection criteria used to assemble our sample and report the discovery of two distant giant planets, TOI-1669 b and TOI-1694 c. For TOI-1669 b we find that Msin i = 0.573 +/- 0.074 M_J, P = 502 +/- 16 days, and e < 0.27, while for TOI-1694 c, Msin i = 1.05 +/- 0.05 M_J, P = 389.2 +/- 3.9 days, and e = 0.18 +/- 0.05. We also confirmed the 3.8-day transiting planet TOI-1694 b by measuring a true mass of M = 26.1 +/- 2.2 M_E. We also confirmed the 3.8-day transiting planet TOI-1694 b by measuring a true mass of M = 26.1 +/- 2.2 M_E. At the end of the Distant Giants Survey, we will incorporate TOI-1669 b and TOI-1694 c into our calculation of P(DG|CS), a crucial statistic for understanding the relationship between outer giants and small inner companions.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2209.06958
Document Type :
Working Paper
Full Text :
https://doi.org/10.3847/1538-3881/aca6ef