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RV and Photometric data of TOI-757 b
We report the spectroscopic confirmation and fundamental properties of TOI-757 b, a mini-Neptune on a 17.5-day orbit transiting a bright star (V=9.7mag) discovered by the TESS... -
HD 15906 CHEOPS PIPE and WASP lightcurves
We report the discovery of two warm sub-Neptunes transiting the bright (G=9.5mag) K-dwarf HD 15906 (TOI 461, TIC 4646810). This star was observed by the Transiting Exoplanet... -
APOGEE-DR16/APOKASC high/low-{alpha} disc stars
The detailed age-chemical abundance relations of stars measure time-dependent chemical evolution. These trends offer strong empirical constraints on nucleosynthetic processes,... -
A planetary-mass companion to a solar-type star
The Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70 young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the Scorpius-Centaurus... -
GJ 9827 HARPS-N RV data
Super-Earths belong to a class of planet not found in the Solar system, but which appear common in the Galaxy. Given that some super-Earths are rocky, while others retain... -
CFHT monitoring of M67 & members from Gaia EDR3
We present stellar rotation periods for late K- and early M-dwarf members of the 4Gyr old open cluster M67 as calibrators for gyrochronology and tests of stellar spin-down... -
Discovery of an L dwarf co-moving BD+60 1417
Through the Backyard Worlds: Planet 9 citizen science project we discovered a late-type L dwarf co-moving with the young K0 star BD+60 1417 at a projected separation of 37" or... -
Starspots's temperature and area in 337 KIC stars
Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type... -
TESS and NGTS LCs and RVs of NGTS-11
We report the discovery of NGTS-11 b (=TOI-1847b), a transiting Saturn in a 35.46 day orbit around a mid K-type star (T_eff_=5050+/-80K). We initially identified the system from... -
Ly{alpha} obs. of low-mass stars Ross 825 & 1044
The discovery of habitable zone (HZ) planets around low-mass stars has highlighted the need for a comprehensive understanding of the radiation environments in which such planets... -
LAMOST K giants in Galactic halo substructures
We construct a large halo K-giant sample by combining the positions, distances, radial velocities, and metallicities of over 13000 LAMOST DR5 halo K giants with the Gaia DR2... -
Effective temperatures of low-mass stars
High-resolution, near-infrared spectra will be the primary tool for finding and characterizing Earth-like planets around low-mass stars. Yet, the properties of exoplanets cannot... -
HARPS radial velocities of the host star HD15337
We report the discovery of a super-Earth and a sub-Neptune transiting the star HD 15337 (TOI-402, TIC 120896927), a bright (V=9) K1 dwarf observed by the Transiting Exoplanet... -
The SEGUE K giant survey. III. Galactic halo
We statistically quantify the amount of substructure in the Milky Way stellar halo using a sample of 4568 halo K giant stars at Galactocentric distances ranging over 5-125kpc.... -
HD 128311 radial velocity and astrometric data
We have used high-cadence radial velocity measurements from the Hobby-Eberly Telescope with published velocities from the Lick 3 m Shane Telescope, combined with astrometric... -
The SEGUE K giant survey. II. Distances of 6036 stars
We present an online catalog of distance determinations for 6036 K giants, most of which are members of the Milky Way's stellar halo. Their medium-resolution spectra from the... -
HAT-P-18 and HAT-P-19 follow-up
We report the discovery of two new transiting extrasolar planets. HAT-P-18b orbits the V=12.759 K2 dwarf star GSC 2594-00646, with a period P=5.508023+/-0.000006 days, transit... -
Follow-up photometry for HAT-P-11
We report on the discovery of HAT-P-11b, the smallest radius transiting extrasolar planet (TEP) discovered from the ground, and the first hot Neptune discovered to date by... -
Sloan iz light curves of HAT-P-10
We report on the discovery of HAT-P-10b, one of the lowest mass (0.487+/-0.018M_J_) transiting extrasolar planets (TEPs) discovered to date by transit searches. HAT-P-10b orbits... -
BD+29 2654 equivalent Widths and line abundances
We report the discovery and Doppler mass measurement of a 7.4days 2.3R{Earth} mini-Neptune around a metal-poor K-dwarf BD+29-2654 (TOI-2018). Based on a high-resolution...