THE SUB-SATURN MASS TRANSITING PLANET HAT-P-12b
نویسندگان
چکیده
منابع مشابه
HAT - P - 12 b : A LOW - DENSITY SUB - SATURN MASS PLANET TRANSITING A METAL - POOR K DWARF
We report on the discovery of HAT-P-12b, a transiting extrasolar planet orbiting the moderately bright V ≈ 12.8 K4 dwarf GSC 03033-00706, with a period P = 3.2130598 ± 0.0000021 d, transit epoch Tc = 2454419.19556± 0.00020 (BJD) and transit duration 0.0974± 0.0006d. The host star has a mass of 0.73 ± 0.02M⊙, radius of 0.70 +0.02 −0.01R⊙, effective temperature 4650 ± 60K and metallicity [Fe/H ] ...
متن کاملFollow - up Observations of the Neptune Mass Transiting Extrasolar Planet Hat - P - 11 b
We have confirmed the existence of the transiting super Neptune extrasolar planet HAT-P-11b. On May 1, 2009 UT the transit of Hat-P-11b was detected at the University of Arizona’s 1.55m Kuiper Telescope with 1.7 millimag rms accuracy. We find a central transit time of Tc = 2454952.92534± 0.00060 BJD; this transit occurred 80 ± 73 seconds sooner than previous measurements (71 orbits in the past)...
متن کاملFollow - up Observations of the Neptune Mass Transiting Extrasolar Planet HAT - P - 11 b Jason
We have confirmed the existence of the transiting super Neptune extrasolar planet HAT-P-11b. On May 1, 2009 UT the transit of HAT-P-11b was detected at the University of Arizona’s 1.55m Kuiper Telescope with 1.7 millimag rms accuracy. We find a central transit time of Tc = 2454952.92534± 0.00060 BJD; this transit occurred 80 ± 73 seconds sooner than previous measurements (71 orbits in the past)...
متن کاملHAT-P-44b, HAT-P-45b, AND HAT-P-46b: THREE TRANSITING HOT JUPITERS IN POSSIBLE MULTI- PLANET SYSTEMS
We report the discovery by the HATNet survey of three new transiting extrasolar planets orbiting moderately bright (V=13.2, 12.8 and 11.9) stars. The planets have orbital periods of 4.3012, 3.1290, and 4.4631 days, masses of 0.39, 0.89, and 0.49MJ, and radii of 1.28, 1.43, and 1.28RJ. The stellar hosts have masses of 0.94, 1.26, and 1.28M⊙. Each system shows significant systematic variations in...
متن کاملA Near-infrared Transmission Spectrum for the Warm Saturn Hat-p-12b
We present a HST WFC3 transmission spectrum for the transiting exoplanet HAT-P-12b. This warm (1000 K) sub-Saturn-mass planet has a smaller mass and a lower temperature than the hotJupiters that have been studied so far. We find that the planet’s measured transmission spectrum lacks the expected water absorption feature for a hydrogen-dominated atmosphere, and is instead bestdescribed by a mode...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2012
ISSN: 0004-6256,1538-3881
DOI: 10.1088/0004-6256/143/4/95