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Related papers: Planetary companion in K giant Sigma Persei

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Aims. Our aim is to search for and study the origin of the low-amplitude and long-periodic radial velocity (RV) variations in K giants. Methods. We present high-resolution RV measurements of K2 giant epsilon CrB from February 2005 to…

Solar and Stellar Astrophysics · Physics 2015-06-11 Byeong-Cheol Lee , Inwoo Han , Myeong-Gu Park , David E. Mkrtichian , Kang-Min Kim

Aims: Our primary goal is to search for planets around intermediate mass stars. We are also interested in studying the nature of radial velocity (RV) variations of K giant stars. Methods: We selected about 55 early K giant (K0 - K4) stars…

Solar and Stellar Astrophysics · Physics 2015-05-14 Inwoo Han , B. C. Lee , K. M. Kim , D. E. Mkrtichian , A. P. Hatzes , G. Valyavin

Aims. The purpose of the present study is to research the origin of planetary companions by using a precise radial velocity (RV) survey. Methods. The high-resolution spectroscopy of the fiber-fed Bohyunsan Observatory Echelle Spectrograph…

Solar and Stellar Astrophysics · Physics 2015-06-12 B. -C. Lee , I. Han , M. -G. Park

Auns. The aim of our paper is to investigate the low-amplitude and long-period variations in evolved stars with a precise radial velocity (RV) survey. Methods. The high-resolution, the fiber-fed Bohyunsan Observatory Echelle Spectrograph…

Earth and Planetary Astrophysics · Physics 2014-07-02 B. -C. Lee , I. Han , M. -G. Park , D. E. Mkrtichian , A. P. Hatzes , K. -M. Kim

Aims. To search for extrasolar planets around intermediate-mass stars, we are conducting a precise RV survey around K-giants. Methods. We present high-accuracy RV measurements of {\alpha} Ari made from November 2003 to February 2010. This…

Earth and Planetary Astrophysics · Physics 2011-04-25 B. -C. Lee , D. E. Mkrtichian , I. Han , K. -M. Kim , M. -G. Park

Aims. In order to search for and study the nature of the low-amplitude and long-periodic radial velocity (RV) variations of massive stars, we have been carrying out a precise RV survey for supergiants that lie near or inside the Cepheid…

Earth and Planetary Astrophysics · Physics 2015-06-05 Byeong-Cheol Lee , Inwoo Han , Myeong-Gu Park , Kang-Min Kim , David. E. Mkrtichian

We report the discovery of long-period radial velocity (RV) variations in six intermediate-mass K-giant stars using precise RV measurements. These discoveries are part of the Search for Exoplanets around Northern Circumpolar Stars (SENS)…

Earth and Planetary Astrophysics · Physics 2018-08-06 Gwanghui Jeong , Inwoo Han , Myeong-Gu Park , Artie P. Hatzes , Tae-Yang Bang , Shenghong Gu , Jinming Bai , Byeong-Cheol Lee

High precision radial velocity (RV) measurements spanning the years 1980.8--2000.0 are presented for the nearby (3.22 pc) K2 V star $\epsilon$ Eri. These data, which represent a combination of six independent data sets taken with four…

A precise radial velocity survey conducted by a Korean-Japanese planet search program revealed a planetary companion around the intermediate-mass clump giant HD 100655. The radial velocity of the star exhibits a periodic Keplerian variation…

For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G,K-type stars to extend our knowledge of planet formation and evolution. We performed high precision RV measurements…

Solar and Stellar Astrophysics · Physics 2017-11-29 M. Yılmaz , B. Sato , I. Bikmaev , S. O. Selam , H. Izumiura , V. Keskin , E. Kambe , S. S. Melnikov , A. Galeev , İ. Özavcı , E. N. Irtuganov , R. Ya. Zhuchkov

We report on the discovery of a planetary companion candidate with a minimum mass Msini = 4.6 M_J orbiting the K2 III giant star HD 175370 (KIC 007940959). This star was a target in our program to search for planets around a sample of 95…

Population studies of Kepler's multi-planet systems have revealed a surprising degree of structure in their underlying architectures. Information from a detected transiting planet can be combined with a population model to make predictions…

Earth and Planetary Astrophysics · Physics 2021-11-03 Matthias Y. He , Eric B. Ford , Darin Ragozzine

Using the Hamilton Echelle Spectrograph at Lick Observatory, we have obtained precise radial velocities (RVs) of a sample of 373 G- and K-giant stars over more than 12 years, leading to the discovery of several single and multiple planetary…

11 UMi and HD 32518 belong to a sample of 62 K giant stars that has been observed since February 2004 using the 2m Alfred Jensch telescope of the Th\"uringer Landessternwarte (TLS) to measure precise radial velocities (RVs). The aim of this…

Earth and Planetary Astrophysics · Physics 2015-05-13 M. P. Döllinger , A. P. Hatzes , L. Pasquini , E. W. Guenther , M. Hartmann

The Gamma Cephei planetary system is one of the most interesting systems due to several reasons: 1.) it is the first planet candidate detected by precise radial velocity (RV) measurements that was discussed in the literature (Campbell et…

Earth and Planetary Astrophysics · Physics 2015-03-17 Michael Endl , William D. Cochran , Artie P. Hatzes , Robert A. Wittenmyer

Aims. We report the detection of long-period radial velocity (RV) variations in three giant stars, HD 19615, HD 150010, and HD 174205, using precise RV measurements. Methods. These detections are part of the Search for Exoplanets around…

Earth and Planetary Astrophysics · Physics 2022-06-01 G. Jeong , B. C. Lee , M. G. Park , T. Y. Bang , I. Han

Context: For the past 3 years we have been monitoring a sample of 62 K giant stars using precise stellar radial velocity measurements taken at the Thueringer Landessternwarte Tautenburg. Aims: To search for sub-stellar companions to giant…

Aims. We have been carrying out a precise radial velocity (RV) survey for K giants to search for and study the origin of the lowamplitude and long-periodic RV variations. Methods. We present high-resolution RV measurements of the K2 giant…

Solar and Stellar Astrophysics · Physics 2015-06-12 B. -C. Lee , D. E. Mkrtichian , I. Han , M. -G. Park , K. -M. Kim

Radial velocity (RV) searches for exoplanets have surveyed many of the nearest and brightest stars for long-term velocity variations indicative of a companion body. Such surveys often detect high-amplitude velocity signatures of objects…

We report the detection of a substellar companion orbiting the intermediate-mass giant star 11 Com (G8 III). Precise Doppler measurements of the star from Xinglong station and Okayama Astrophysical Observatory (OAO) revealed Keplerian…

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