HAT-P-25b: A Hot-Jupiter Transiting a Moderately Faint G Star

Author(s): Quinn, SN; Bakos, Gaspar Aron; Hartman, J; Torres, G; Kovács, G; et al

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Abstract:	We report the discovery of HAT-P-25b, a transiting extrasolar planet orbiting the V = 13.19 G5 dwarf star GSC 1788-01237, with a period P = 3 . 652836 ± 0 . 000019 days, transit epoch T c = 2455176 . 85173 ± 0 . 00047 (BJD—barycentric Julian dates throughout the paper are calculated from Coordinated Universal Time, UTC), and transit duration 0 . 1174 ± 0 . 0017 days. The host star has a mass of 1 . 01 ± 0 . 03 M , radius of 0 . 96 +0 . 05 − 0 . 04 R , effective temperature 5500 ± 80 K, and metallicity [Fe / H] = +0 . 31 ± 0 . 08. The planetary companion has a mass of 0 . 567 ± 0 . 022 M J and radius of 1 . 190 +0 . 081 − 0 . 056 R J yielding a mean density of 0 . 42 ± 0 . 07 g cm − 3 .
Publication Date:	20-Jan-2012
Electronic Publication Date:	29-Dec-2011
Citation:	Quinn, SN, Bakos, GÁ, Hartman, J, Torres, G, Kovács, G, Latham, DW, Noyes, RW, Fischer, DA, Johnson, JA, Marcy, GW, Howard, AW, Szentgyorgyi, A, Fúrész, G, Buchhave, LA, Béky, B, Sasselov, DD, Stefanik, RP, Perumpilly, G, Everett, M, Lázár, J, Papp, I, Sári, P. (2012). HAT-P-25b: A Hot-Jupiter Transiting a Moderately Faint G Star. \apj, 745 (80 - 80. doi:10.1088/0004-637X/745/1/80
DOI:	doi:10.1088/0004-637X/745/1/80
Type of Material:	Journal Article
Journal/Proceeding Title:	Astrophysical Journal
Version:	Final published version. This is an open access article.