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Related papers: Exoplanet System Kepler-2 with comparisons to Kepl…

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We analyzed the combined near-infrared spectrum of a star-planet system with thermal emission atmospheric models, based on the composition and physical parameters of the system. The main objective of this work is to obtain the inclination…

Earth and Planetary Astrophysics · Physics 2015-05-27 Patricio E. Cubillos , Patricio Rojo , Jonathan J. Fortney

We present Spitzer Space Telescope observations of the extrasolar planet HD189733b primary transit, obtained simultaneously at 3.6 and 5.8 microns with the Infrared Array Camera. The system parameters, including planetary radius, stellar…

To fully leverage the statistical strength of the large number of planets found by projects such as the Kepler survey, the properties of planets and their host stars must be measured as accurately as possible. One key population for planet…

Earth and Planetary Astrophysics · Physics 2022-08-31 Kendall Sullivan , Adam L. Kraus , Andrew W. Mann

We present a preliminary analysis of the sensitivity of Anglo-Australian Planet Search data to the orbital parameters of extrasolar planets. To do so, we have developed new tools for the automatic analysis of large-scale simulations of…

Astrophysics · Physics 2009-11-13 S. J. O'Toole , C. G. Tinney , H. R. A. Jones , R. P. Butler , G. W. Marcy , B. Carter , J. Bailey

We perform a homogeneous search for and analysis of optical occultations and phase variations of the most favorable ultra-short-period (USP) ($P<1$~d) sub-Neptunes ($R_{p}<4 R_{\oplus}$) observed by $\textit{Kepler}$ and K2, with the aim of…

Earth and Planetary Astrophysics · Physics 2022-03-14 Vikash Singh , A. S. Bonomo , G. Scandariato , N. Cibrario , D. Barbato , L. Fossati , I. Pagano , A. Sozzetti

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 semi-major axis of a = 0.0377 +/- 0.0005 AU. Ephemeris for the system is P = 2.2047299 +/- 0.0000040 days,…

Data from the Kepler satellite were analysed using the Mikulski Archive for Space Telescopes (MAST) database. With the participation of 53 students, we determined the parameters of the HAT-P-7b (Kepler-2) exoplanet system (transit duration,…

Physics Education · Physics 2022-06-22 Hajnalka Ollé , Tamás Kovács

We develop a general method to fit the planetary distribution function (PLDF) to exoplanet survey data. This maximum likelihood method accommodates more than one planet per star and any number of planet or target star properties.…

Earth and Planetary Astrophysics · Physics 2015-05-28 Andrew N. Youdin

Context: After the loss of a second reaction wheel the Kepler mission was redesigned as the K2 mission, pointing towards the ecliptic and delivering data for new fields approximately every 80 days. The steady flow of data obtained with a…

Solar and Stellar Astrophysics · Physics 2016-12-21 R. Handberg , M. N. Lund

Ground-based observations of the secondary transit in the 2MASS K band are presented for the hot Jupiter WASP-121b. These are the first occultation observations of an extrasolar planet carried out with an instrument attached to a 1m-class…

Earth and Planetary Astrophysics · Physics 2019-05-22 Geza Kovacs , Tamas Kovacs

We report the detection of the secondary eclipse of HAT-P-11 b, a Neptune-sized planet orbiting an active K4 dwarf. Using all available short-cadence data of the Kepler mission, we derive refined planetary ephemeris increasing their…

Earth and Planetary Astrophysics · Physics 2017-01-18 K. F. Huber , S. Czesla , J. H. M. M. Schmitt

We report on novel observations of HAT-P-1 aimed at constraining the optical transmission spectrum of the atmosphere of its transiting Hot-Jupiter exoplanet. Ground-based differential spectrophotometry was performed over two transit windows…

Earth and Planetary Astrophysics · Physics 2015-09-23 M. Montalto , N. Iro , N. C. Santos , S. Desidera , J. H. C. Martins , P. Figueira , R. Alonso , .

The Qatar-2 transiting exoplanet system was recently observed by the {\it Kepler} telescope as part of {\it K2} Campaign 6. The photometric time series has one-minute time sampling and a precision of about 690~ppm, after filtering out…

Earth and Planetary Astrophysics · Physics 2017-01-11 Fei Dai , Joshua N. Winn , Liang Yu , Simon Albrecht

Kepler Mission results are rapidly contributing to fundamentally new discoveries in both the exoplanet and asteroseismology fields. The data returned from Kepler are unique in terms of the number of stars observed, precision of photometry…

Given the extreme precision attainable with the Kepler Space Telescope, the mitigation of instrumental artefacts is very important. In an earlier paper (Murphy 2012), the characteristics of Kepler data were discussed in light of their…

Solar and Stellar Astrophysics · Physics 2013-04-11 S. J. Murphy

Context. The CoRoT and Kepler missions have paved the way for synergies between exoplanetology and asteroseismology. The use of seismic data helps providing stringent constraints on the stellar properties which directly impact the results…

Aims: We predict the exoplanet yield of a space-based mid-infrared nulling interferometer using Monte Carlo simulations. We quantify the number and properties of detectable exoplanets and identify those target stars that have the highest or…

Earth and Planetary Astrophysics · Physics 2017-12-27 J. Kammerer , S. P. Quanz

We used the Robo-AO laser adaptive optics system to image 99 main sequence and subgiant stars that have Kepler-detected asteroseismic signals. Robo-AO allows us to resolve blended secondary sources at separations as close as 0.15" that may…

We present an analysis of 18 short-cadence (SC) transit lightcurves of TrES-2b using quarter 0 (Q0) and quarter 1 (Q1) from the Kepler Mission. The photometry is of unprecedented precision, 237ppm per minute, allowing for the most accurate…

Earth and Planetary Astrophysics · Physics 2015-05-19 David M. Kipping , Gáspár Á. Bakos

We present Hubble Space Telescope near-infrared transmission spectroscopy of the transiting hot-Jupiter HAT-P-1b. We observed one transit with Wide Field Camera 3 using the G141 low-resolution grism to cover the wavelength range 1.087-…