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Related papers: Tracking Advanced Planetary Systems with HARPS-N (…

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Evolved stars are crucial pieces to understand the dependency of the planet formation mechanism on the stellar mass and to explore deeper the mechanism involved in star-planet interactions. Over the past ten years, we have monitored about…

Earth and Planetary Astrophysics · Physics 2016-04-06 A. Niedzielski , E. Villaver , G. Nowak , M. Adamów , K. Kowalik , A. Wolszczan , B. Deka-Szymankiewicz , M. Adamczyk , G. Maciejewski

We present two evolved stars from the TAPAS (Tracking Advanced PlAnetary Systems) with HARPS-N project devoted to RV precision measurements of identified candidates within the PennState - Torun Centre for Astronomy Planet Search. Evolved…

Earth and Planetary Astrophysics · Physics 2017-10-11 E. Villaver , A. Niedzielski , A. Wolszczan , G. Nowak , K. Kowalik , M. Adamow , G. Maciejewski , B. Deka-Szymankiewicz , J. Maldonado

We present the current status of and new results from our search for exoplanets in a sample of solar-mass, evolved stars observed with the HARPS-N and the 3.6-m Telescopio Nazionale Galileo (TNG), and the High Resolution Spectrograph (HRS)…

Earth and Planetary Astrophysics · Physics 2021-04-14 Andrzej T. Niedzielski , Eva Villaver , Monika Adamów , Kacper Kowalik , Aleksander Wolszczan , Gracjan Maciejewski

We present the latest results of our search for planets with HARPS-N at the 3.6 m Telescopio Nazionale Galileo under the Tracking Advanced Planetary Systems project: an in-depth study of the 15 most Li abundant giants from the PennState -…

Solar and Stellar Astrophysics · Physics 2018-05-30 M. Adamów , A. Niedzielski , K. Kowalik , E. Villaver , A. Wolszczan , G. Maciejewski , M. Gromadzki

The star HD 118203, classified as a K0 subgiant, was known to harbour a transiting hot Jupiter planet on a 6.1-day eccentric orbit. Previous studies also revealed a linear trend in the radial velocity (RV) domain, indicative of a companion…

Earth and Planetary Astrophysics · Physics 2024-07-17 G. Maciejewski , A. Niedzielski , K. Gozdziewski , A. Wolszczan , E. Villaver , M. Fernandez , M. Adamow , J. Sierzputowska

We performed an intensive radial velocity monitoring of XO-2S, the wide companion of the transiting planet-host XO-2N, using HARPS-N at TNG in the framework of the GAPS programme. The radial velocity measurements indicate the presence of a…

Context. Identification of planetary companions of giant stars is made difficult because of the astrophysical noise, that may produce radial velocity (RV) variations similar to those induced by a companion. On the other hand any stellar…

We present the latest result of the TAPAS project that is devoted to intense monitoring of planetary candidates that are identified within the PennState-Toru\'n planet search. We aim to detect planetary systems around evolved stars to be…

Earth and Planetary Astrophysics · Physics 2016-04-06 A. Niedzielski , E. Villaver , G. Nowak , M. Adamów , G. Maciejewski , K. Kowalik , A. Wolszczan , B. Deka-Szymankiewicz , M. Adamczyk

The vast diversity of planetary systems detected to date is defying our capability of understanding their formation and evolution. Well-defined volume-limited surveys are the best tool at our disposal to tackle the problem, via the…

Earth and Planetary Astrophysics · Physics 2013-01-16 G. Lo Curto , M. Mayor , W. Benz , F. Bouchy , G. Hebrard , C. Lovis , C. Moutou , D. Naef , F. Pepe , D. Queloz , N. C. Santos , D. Segransan , S. Udry

We are conducting a planet search survey with HARPS since seven years. The volume-limited stellar sample includes all F2 to M0 main-sequence stars within 57.5 pc, where extrasolar planetary signatures are systematically searched for with…

Earth and Planetary Astrophysics · Physics 2015-05-20 C. Moutou , M. Mayor , G. Lo Curto , D. Segransan , S. Udry , F. Bouchy , W. Benz , C. Lovis , D. Naef , F. Pepe , D. Queloz , N. C. Santos , S. Sousa

In the framework of the Global Architecture of Planetary Systems (GAPS) project we collected more than 300 spectra with HARPS-N at the TNG for the bright G9V star HD164922. This target is known to host one gas giant planet in a wide orbit…

The detection of low-mass transiting exoplanets in multiple systems brings new constraints to planetary formation and evolution processes and challenges the current planet formation theories. Nevertheless, only a mere fraction of the small…

TESS is revolutionising the search for planets orbiting bright and nearby stars. In sectors 3 and 4, TESS observed TOI-402 (TIC-120896927), a bright V=9.1 K1 dwarf also known as HD 15337, and found two transiting signals with period of 4.76…

The Rocky Planet Search (RPS) program is dedicated to a blind radial velocity (RV) search of planets around bright stars in the Northern hemisphere, using the high-resolution echelle spectrograph HARPS-N installed on the Telescopio…

For more than two years, we monitored with the HARPS-N spectrograph the 400 Myr-old star HD\,63433, which hosts two close-in (orbital periods $P_b\sim7.1$ and $P_c\sim20.5$ days) sub-Neptunes detected by the TESS space telescope, and it was…

We carried out a Bayesian homogeneous determination of the orbital parameters of 231 transiting giant planets (TGPs) that are alone or have distant companions; we employed DE-MCMC methods to analyse radial-velocity (RV) data from the…

Context. Low-mass extrasolar planets are presently being discovered at an increased pace by radial velocity and transit surveys, opening a new window on planetary systems. Aims. We are conducting a high-precision radial velocity survey with…

Earth and Planetary Astrophysics · Physics 2015-05-20 C. Lovis , D. Ségransan , M. Mayor , S. Udry , W. Benz , J. -L. Bertaux , F. Bouchy , A. C. M. Correia , J. Laskar , G. Lo Curto , C. Mordasini , F. Pepe , D. Queloz , N. C. Santos

Young nearby stars are good candidates in the search for planets with both radial velocity (RV) and direct imaging techniques. This, in turn, allows for the computation of the giant planet occurrence rates at all separations. The RV search…

In order to understand the observed physical and orbital diversity of extrasolar planetary systems, a full investigation of these objects and of their host stars is necessary. Within this field, one of the main purposes of the GAPS…

The distribution of exoplanets around low-mass stars is still not well understood. Such stars, however, present an excellent opportunity of reaching down to the rocky and habitable planet domains. The number of current detections used for…

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