HAT-P-11b: A SUPER-NEPTUNE PLANET TRANSITING A BRIGHT K STAR IN THE KEPLER FIELD
We report on the discovery of HAT-P-11b, the smallest radius transiting extrasolar planet (TEP) discovered from the ground, and the first hot Neptune discovered to date by transit searches. HAT-P-11b…
HD 147506b: A Supermassive Planet in an Eccentric Orbit Transiting a Bright Star
We report the discovery of a massive (Mp = 9.04 ± 0.50 MJ) planet transiting the bright (V = 8.7) F8 star HD 147506, with an orbital period of 5.63341 ± 0.00013 days and an eccentricity of e = 0.520…
HAT-P-7b: An Extremely Hot Massive Planet Transiting a Bright Star in the Kepler Field
We report on the latest discovery of the HATNet project: a very hot giant planet orbiting a bright (V = 10.5) star with a small semimajor axis of a = 0.0377 ± 0.0005 AU. Ephemeris for the system is P…
HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting One Member of a Stellar Binary
Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402. This system is a pair of G0 main-sequence…
HAT-P-13b,c: A TRANSITING HOT JUPITER WITH A MASSIVE OUTER COMPANION ON AN ECCENTRIC ORBIT
We report on the discovery of a planetary system with a close-in transiting hot Jupiter on a near circular orbit and a massive outer planet on a highly eccentric orbit. The inner planet, HAT-P-13b,…
“TNOs are Cool”: A survey of the trans-Neptunian region
- E. Vilenius, C. Kiss, P. Hartogh
- Geology, PhysicsAstronomy & Astrophysics
- 1 June 2010
Context. A group of trans-Neptunian objects (TNOs) are dynamically related to the dwarf planet 136108 Haumea. Ten of them show strong indications of water ice on their surfaces, are assumed to have…
Frequent Flaring in the TRAPPIST-1 System—Unsuited for Life?
- K. Vida, Z. Kővári, A. Pál, K. Oláh, L. Kriskovics
- Physics, Geology
- 29 March 2017
We analyze the K2 light curve of the TRAPPIST-1 system. The Fourier analysis of the data suggests Prot = 3.295 ± 0.003 days. The light curve shows several flares, of which we analyzed 42 events with…
HAT-P-12b: A LOW-DENSITY SUB-SATURN MASS PLANET TRANSITING A METAL-POOR K DWARF
- J. Hartman, G. Bakos, P. Sári
- Physics, Geology
- 29 April 2009
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…
A Stellar Companion in the HD 189733 System with a Known Transiting Extrasolar Planet
- G. Bakos, A. Pál, D. Latham, R. Noyes, R. Stefanik
- Physics, Geology
- 6 February 2006
We show that the very close-by (19 pc) K0 star HD 189733, already found to be orbited by a transiting giant planet, is the primary of a double star system, with the secondary being a mid-M dwarf with…
Refined Parameters of the Planet Orbiting HD 189733
- G. Bakos, H. Knutson, I. Paris
- Geology, Physics
- 12 March 2006
We report on the BVRI multiband follow-up photometry of the transiting extrasolar planet HD 189733b. We revise the transit parameters and find a planetary radius of RP = 1.154 ± 0.033RJ and an…
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