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Related papers: An algorithm for correcting CoRoT raw light curves

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Pulsating stars in eclipsing binary systems are powerful tools to test stellar models. Binarity enables to constrain the pulsating component physical parameters, whose knowledge drastically improves the input physics for asteroseismic…

Solar and Stellar Astrophysics · Physics 2015-06-12 C. Maceroni , J. Montalbán , D. Gandolfi , K. Pavlovski , M. Rainer

A preliminary data analysis of the stellar light curves obtained by the robotic telescopes of the TAOS project is presented. We selected a data run relative to one of the stellar fields observed by three of the four TAOS telescopes, and we…

Earth and Planetary Astrophysics · Physics 2014-08-27 D. Ricci , P. -G. Sprimont , C. Ayala , F. G. Ramón-Fox , R. Michel , S. Navarro , S. -Y. Wang , Z. -W. Zhang , M. J. Lehner , L. Nicastro , M. Reyes-Ruiz

We present a method to detect discontinuity curves, usually called faults, from a set of scattered data. The scheme first extracts from the data set a subset of points close to the faults. This selection is based on an indicator obtained by…

Numerical Analysis · Mathematics 2019-05-16 Cesare Bracco , Oleg Davydov , Carlotta Giannelli , Alessandra Sestini

The large majority of extinction sight lines in our Galaxy obey a simple relation depending on one parameter, the total-to-selective extinction coefficient, Rv. Different values of Rv are able to match the whole extinction curve through…

Astrophysics of Galaxies · Physics 2015-05-20 Paola Mazzei , Guido Barbaro

Up to now, planet search programs have concentrated on main sequence stars later than spectral type F5. However, identifying planets of early type stars would be interesting. For example, the mass loss of planets orbiting early and late…

Earth and Planetary Astrophysics · Physics 2011-04-05 D. Sebastian , E. W. Guenther

(Abridged) Space missions to search for exo-planets via the transit method, such as COROT, Eddington and Kepler, will need to address problems associated with the automated and efficient detection of planetary transits in light curves…

Astrophysics · Physics 2009-11-10 S. Aigrain , M. Irwin

In the identification of new planetary candidates in transit surveys, the employment of Deep Learning models proved to be essential to efficiently analyse a continuously growing volume of photometric observations. To further improve the…

Numerical jet simulations serve a valuable role in calculating gamma-ray burst afterglow emission beyond analytical approximations. Here we present the results of high resolution 2D simulations of decelerating relativistic jets performed…

High Energy Astrophysical Phenomena · Physics 2015-05-27 H. J. van Eerten , A. I. MacFadyen , W. Zhang

We are at a unique timeline in the history of human evolution where we may be able to discover earth-like planets around stars outside our solar system where conditions can support life or even find evidence of life on those planets. With…

Earth and Planetary Astrophysics · Physics 2021-12-08 Pawel Pratyush , Akshata Gangrade

We used the 0.5-m robotic telescopes located at the Special Astrophysical Observatory of the Russian Academy of Sciences for monitoring two square degrees of the sky with the aim of detecting new exoplanets. A dimming of the visible…

We aim to identify and characterize secondary eclipses in the original light curves of all published CoRoT planets using uniform detection and evaluation critetia. Our analysis is based on a Bayesian model selection between two competing…

Earth and Planetary Astrophysics · Physics 2015-06-12 Hannu Parviainen , Hans Deeg , Juan Antonio Belmonte

Continuum emissions from dust grains are used as a general probe to constrain the initial physical conditions of molecular dense cores where new stars may born. To get as much information as possible from dust emissions, we have developed a…

Astrophysics of Galaxies · Physics 2018-04-20 Nannan Yue , Di Li , Zhiyuan Ren

One of the main features of interest in analysing the light curves of stars is the underlying periodic behaviour. The corresponding observations are a complex type of time series with unequally spaced time points and are sometimes…

Applications · Statistics 2022-11-21 Efthymia Derezea , Alfred Kume , Dirk Froebrich

The Berlin Exoplanet Search Telescope II (BEST II) is a small wide field-of-view photometric survey telescope system located at the Observatorio Cerro Armazones, Chile. The high duty cycle combined with excellent observing conditions and…

Solar and Stellar Astrophysics · Physics 2009-10-06 P. Kabath , A. Erikson , H. Rauer , T. Pasternacki , Sz. Csizmadia , R. Chini , R. Lemke , M. Murphy , T. Fruth , R. Titz , P. Eigmueller

Context. The CoRoT mission, a pioneer in exoplanet searches from space, has completed its first 150 days of continuous observations of ~12000 stars in the galactic plane. An analysis of the raw data identifies the most promising candidates…

Ground-based high-resolution transmission spectroscopy has emerged as a promising technique for detecting chemicals in transiting exoplanetary atmospheres. Despite chemical inferences in several exoplanets and previous robustness studies, a…

Earth and Planetary Astrophysics · Physics 2023-04-19 Connor J. Cheverall , Nikku Madhusudhan , Måns Holmberg

One of the persistent complications in searches for transiting exoplanets is the low percentage of the detected candidates that ultimately prove to be planets, which significantly increases the load on the telescopes used for the follow-up…

Earth and Planetary Astrophysics · Physics 2011-01-12 Brandon Tingley , Aldo Bonomo , Hans-Jörg Deeg

Stellar rotation plays a key role in stellar activity. The rotation period could be detected through light curve variations caused by starspots. Kepler provides two types of light curves, one is the Pre-search Data Conditioning (PDC) light…

Solar and Stellar Astrophysics · Physics 2019-10-02 Kaiming Cui , Jifeng Liu , Shuhong Yang , Qing Gao , Huiqin Yang , Roberto Soria , Lin He , Song Wang , Yu Bai , Fan Yang

The light curve of an exoplanetary transit can be used to estimate the planetary radius and other parameters of interest. Because accurate parameter estimation is a non-analytic and computationally intensive problem, it is often useful to…

Astrophysics · Physics 2009-11-13 Joshua A. Carter , Jennifer C. Yee , Jason Eastman , B. Scott Gaudi , Joshua N. Winn

We present seven light curves of the exoplanet system HAT-P-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. The light curves are analysed using a Markov-Chain Monte-Carlo algorithm to…

Earth and Planetary Astrophysics · Physics 2015-05-14 N. P. Gibson , D. Pollacco , S. Barros , C. Benn , D. Christian , M. Hrudková , Y. C. Joshi , F. P. Keenan , E. K. Simpson , I. Skillen , I. A. Steele , I. Todd