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Photometry and spectroscopy of HATS-8
HATS-8b is a low density transiting super-Neptune discovered as part of the HATSouth project. The planet orbits its solar-like G-dwarf host (V=14.03+/-0.10, T_eff_=50K) with a... -
Photometry and spectroscopy of HATS-9 and HATS-10
We report the discovery of two transiting extrasolar planets by the HATSouth survey. HATS-9b orbits an old (10.8+/-1.5Gyr) V=13.3 G dwarf star with a period p~~1.9153days. The... -
Follow-up photometry of HATS-1
We report the discovery of HATS-1b, a transiting extrasolar planet orbiting the moderately bright V=12.05 G dwarf star GSC 6652-00186, and the first planet discovered by... -
Activity of bright solar analogs
We present 14 years of contemporaneous photometric and spectroscopic observations of 28 solar analog stars, taken with the Tennessee State University Automatic Photometric... -
Li abundance of solar-type stars. II.
We draw upon a recent study of the membership of the Ursa Major Group (UMaG) to examine lithium among 0.3 Gyr old solar-type stars. For most G and K dwarfs, Li confirms the... -
Temperatures and [Fe/H] for evolved G and K stars
The catalog contains mean values of [Fe/H] (with rms errors) for 1117 evolved G-K stars. Literature references are given for the source data, which are all from high-dispersion... -
uvby Photometry of G-type dwarfs
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uvby-beta Photometry of G5 stars
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Stellar chromospheric activity of LAMOST sources
The dependence of stellar magnetic activity on stellar parameters is inspired by the chromospheric activity studies based on the large-scale spectroscopic surveys. The main... -
K2 asteroseismic KEYSTONE Sample. I.
The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters ({Delta}{nu} and {nu}max) for 173... -
NGTS-30 b/TOI-4862 b velocity curve
Long-period transiting exoplanets bridge the gap between the bulk of transit- and Doppler-based exoplanet discoveries, providing key insights into the formation and evolution of... -
Evolution of lithium in FGK dwarfs
This work aims to investigate the behaviour of the lithium abundance in stars with and without detected planets. Our study is based on a sample of 1332 FGK main-sequence stars... -
TOI-858 A and TOI-858 B RV data
We report the discovery of a hot Jupiter on a 3.28-day orbit around a 1.08M_{sun} G0 star that is the secondary component in a loose binary system. Based on follow-up radial... -
TOI-1416 radial velocities
TOI-1416 (BD+42 2504, HIP 70705) is a V=10 late G- or early K-type dwarf star. TESS detected transits in its Sectors 16, 23, and 50 with a depth of about 455ppm and a period of... -
8 solar-like pulsating stars
The NASA K2 mission that succeeded the nominal Kepler mission observed several hundred thousand stars during its operations. While most of the stars were observed in single... -
DS Tuc A radial velocity curve
The observations of young close-in exoplanets are providing first indications of the characteristics of the population and, in turn, clues on the early stages of their... -
Radial velocity measurements of 51 Peg
The analysis of exoplanetary atmospheres by means of high-resolution spectroscopy is an expanding research field which provides information o n chemical composition, thermal... -
zet01 Ret and zet02 activity indexes
We explore if the star zet02 Ret, which belongs to a binary system, is in (or going to) a state similar to the MM. To do so, we have collected more than 430 spectra acquired... -
Abundances of 72 solar-type stars
Previous high-precision studies of abundances of elements in solar twin stars are extended to a wider metallicity range to see how the trends of element ratios with stellar age... -
HD 158259 SOPHIE radial velocities
Since 2011, the SOPHIE spectrograph has been used to search for Neptunes and super-Earths in the northern hemisphere. As part of this observational program, 290 radial velocity...
