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Geneva-Copenhagen Survey of Solar neighbourhood III
Ages, chemical compositions, velocity vectors, and Galactic orbits for stars in the solar neighbourhood are fundamental test data for models of Galactic evolution. The... -
Cerro Armazones spectroscopy of F dwarfs
We present a spectroscopic survey of a sample of F stars that have not yet been searched for planets. The observations of 187 stars obtained with the Bochum Echelle... -
Atmospheric param. of 169 FGKM stars
The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at deriving the effective... -
Elemental abundances for 176 stars
We have performed an abundance analysis for F- and G- dwarfs of the Galactic thick-disc component. A sample of 176 nearby (d<=150pc) thick-disc candidate stars was chosen... -
F- and G-type stars in solar neighbourhood
A new metallicity distribution and an age-metallicity relation are presented for 437 nearby F and G turn-off and sub-giant stars selected from radial velocity data of Nidever et... -
F, G and K dwarf stars of the Pleiades
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Surface rotation & activity for Kepler stars. II.
Dark magnetic spots crossing the stellar disk lead to quasiperiodic brightness variations, which allow us to constrain stellar surface rotation and photometric activity. The... -
FGK stars magnetic activity in LAMOST-Kepler field
Monitoring chromospheric and photospheric indexes of magnetic activity can provide valuable information, especially the interaction between different parts of the atmosphere and... -
Radial velocities of overluminous F stars
We have conducted a radial-velocity survey of bright (V<9), overluminous, F stars within 80pc. Of the total of 118 stars selected, the radial velocities of 77 have been... -
Photometric monitoring from 2008-2018 of 11 PPNe
We have carried out a new photometric V,R_C_ study of 12 protoplanetary nebulae, objects in the short-lived transition between the asymptotic giant branch and planetary nebula... -
Spitzer/IRAC fluxes of the HD 166191 system
We report on five years of 3-5{mu}m photometry measurements obtained by warm Spitzer to track the dust debris emission in the terrestrial zone of HD 166191 in combination with... -
V-band phot. & spectra of the EB BT Vul
We report extensive differential V-band photometry and high-resolution spectroscopy for the 1.14d, detached, double-lined eclipsing binary BT Vul (F0+F7). Our radial-velocity... -
KIC 8462852 ASAS V-band long-term variability
We present ~800 days of photometric monitoring of Boyajian's Star (KIC8462852) from the All-Sky Automated Survey for Supernovae (ASAS-SN) and ~4000d of monitoring from the All... -
Radial velocities of Milky Way inner halo stars
We measure the three components of velocity dispersion, {sigma}R, {sigma}{theta}, {sigma}{phi}, for stars within 6 -
Improved kinematic parallaxes for Sco-Cen members
We present an analysis of the ages and star formation history of the F-type stars in the Upper Scorpius (US), Upper Centaurus-Lupus (UCL), and Lower Centaurus-Crux (LCC)... -
ScoCen debris disks Around F- and G-type stars
We obtained Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) 24 micron and 70 micron observations of 182 nearby, Hipparcos F- and G-type common proper... -
Sloan i-band light curve of HAT-P-24
We report the discovery of HAT-P-24b, a transiting extrasolar planet orbiting the moderately bright V=11.818 F8 dwarf star GSC 0774-01441, with a period P=3.3552464+/-0.0000071... -
Differential photometry of HAT-P-14
We report the discovery of HAT-P-14b, a fairly massive transiting extrasolar planet orbiting the moderately bright star GSC 3086-00152 (V=9.98), with a period of... -
Relative Ic photometry of WASP-17
We report the discovery of the transiting giant planet WASP-17b, the least-dense planet currently known. It is 1.6 Saturn masses, but 1.5-2 Jupiter radii, giving a density of... -
ROSAT view of Hipparcos F stars
For a set of 11900 F stars that have uvby photometry and are in the Hipparcos (Cat. ) catalog, we have found 1980 X-ray counterparts (~17%) in the ROSAT All-Sky Surveys (RASS,...
