Browsing by Author "Hagelberg, J"

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    TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
    (2020) Lendl, M; Bouchy, F; Gill, S; Nielsen, LD; Turner, O; Stassun, K; Acton, JS; Anderson, DR; Armstrong, DJ; Bayliss, D; Belardi, C; Bryant, EM; Burleigh, MR; Chaushev, A; Casewell, SL; Cooke, BF; Eigmuller, P; Gillen, E; Goad, MR; Gunther, MN; Hagelberg, J; Jenkins, JS; Louden, T; Marmier, M; McCormac, J; Moyano, M; Pollacco, D; Raynard, L; Tilbrook, RH; Udry, S; Vines, JI; West, RG; Wheatley, PJ; Ricker, G; Vanderspek, R; Latham, DW; Seager, S; Winn, J; Jenkins, JM; Addison, B; Briceno, C; Brahm, R; Caldwell, DA; Doty, J; Espinoza, N; Goeke, B; Henning, T; Jordán Colzani, Andrés Cristóbal; Krishnamurthy, A; Law, N; Morris, R; Okumura, J; Mann, AW; Rodriguez, JE; Sarkis, P; Schlieder, J; Twicken, JD; Villanueva, S; Wittenmyer, RA; Wright, DJ; Ziegler, C
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    TOI-954 b and K2-329 b: Short-period Saturn-mass Planets that Test whether Irradiation Leads to Inflation
    (2021) Sha, LZ; Huang, CLX; Shporer, A; Rodriguez, JE; Vanderburg, A; Brahm, R; Hagelberg, J; Matthews, EC; Ziegler, C; Livingston, JH; Stassun, KG; Wright, DJ; Crane, JD; Espinoza, N; Bouchy, F; Bakos, GA; Collins, KA; Zhou, GR; Bieryla, A; Hartman, JD; Wittenmyer, RA; Nielsen, LD; Plavchan, P; Bayliss, D; Sarkis, P; Tan, TG; Cloutier, R; Mancini, L; Jordan, A; Wang, SR; Henning, T; Narita, N; Penev, K; Teske, JK; Kane, SR; Mann, AW; Addison, BC; Tamura, M; Horner, J; Barbieri, M; Burt, JA; Diaz, MR; Crossfield, IJM; Dragomir, D; Drass, H; Feinstein, AD; Zhang, H; Hart, R; Kielkopf, JF; Jensen, ELN; Montet, BT; Ottoni, G; Schwarz, RP; Rojas Henríquez, Felipe Ignacio; Nespral, D; Torres Miranda, Pascal Jose; Mengel, MW; Udry, S; Zapata, A; Snoddy, E; Okumura, J; Ricker, GR; Vanderspek, RK; Latham, DW; Winn, JN; Seager, S; Jenkins, JM; Colon, KD; Henze, CE; Krishnamurthy, A; Ting, EB; Vezie, M; Villanueva, S
    We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, V = 10.343, T = 9.78) observed in TESS sectors 4 and 5 and one transiting the G dwarf K2-329 (EPIC 246193072, V = 12.70, K = 10.67) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954 b has a radius of 0.852(-0.062)(+0.053) R-J and a mass of 0.174(-0.017)(+0.018) M-J and is in a 3.68 day orbit, while K2-329 b has a radius of 0.774(-0.024)(+0.026) R-J and a mass if 0.260(-0.022)(+0.020) M-J and is in a 12.46 day orbit. As TOI-954 b is 30 times more irradiated than K2-329 b but more or less the same size, these two planets provide an opportunity to test whether irradiation leads to inflation of Saturn-mass planets and contribute to future comparative studies that explore Saturn-mass planets at contrasting points in their lifetimes.