1,560 datasets found

The heavy elements (Z>30) are created in neutron (n)-capture processes which are predicted to happen at vastly different nucleosynthetic sites. To study these processes in an...

HARPS-N spectra with S/N>250 and MARCS model atmospheres were used to derive abundances of C, O, Na, Mg, Al, Si, Ca, Ti, Cr, Fe, Ni, Zn, and Y in ten stars from the Kepler...

We measured the gas abundance profiles in a sample of 122 face-on spiral galaxies observed by the CALIFA survey and included all spaxels whose line emission was consistent with...

Ongoing and future massive spectroscopic surveys will collect large numbers (10^6^-10^7^) of stellar spectra that need to be analyzed. Highly automated software is needed to...

Two distinct halo populations were found in the solar neighborhood by a series of works. They can be clearly separated by [{alpha}/Fe] and several other elemental abundance...

In the current era of large spectroscopic surveys of the Milky Way, reference stars for calibrating astrophysical parameters and chemical abundances are of paramount importance....

In Galactic halo stars, sulphur has been shown to behave like other {alpha}-elements, but until now, no comprehensive studies have been done on this element in stars of other...

A combined study of kinematics and chemical composition of stars is one of the most promising tools of research in Galaxy formation. The main goal in this field of research is...

We investigate the relationship between stellar mass, metallicity and gas content for a magnitude- and volume-limited sample of 260 nearby late-type galaxies in different...

To obtain detailed silicon abundances of metal-poor stars, we aim to explore the correlation between the abundance ratios and the stellar parameters and the chemical enrichment...

Precise abundance ratios are determined for 94 dwarf stars with 5200<Teff<6300K, -1.6<[Fe/H]<-0.4, and distances D<~335pc. Most of them have halo kinematics, but...

We present new high resolution (R>50000) absorption measurements of the NaI doublet (5889-5895{AA}) along 482 nearby sight-lines, in addition to 807 new measurements of the...

We have used FLAMES (the Fibre Large Array Multi Element Spectrograph) at the VLT-UT2 telescope to obtain spectra of a large sample of red giant stars from the inner disk of the...

We present the analysis of the radial gradients of stellar absorption lines in a sample of 32 bulges of edge-on spiral galaxies, spanning nearly the full Hubble sequence (from...

Generally the gas metallicity in distant galaxies can only be inferred by using a few prominent emission lines. Various theoretical models have been used to predict the...

We present Na, Mg and Al abundances in a set of 98 stars with known giant planets, and in a comparison sample of 41 "single" stars. The results show that the [X/H] abundances...

We present preliminary results form a long-term program of mapping the neutral absorption characteristics of the local interstellar medium, taking advantage of Hipparcos stellar...

Wavelength measurements and line identifications from the 0.14A/pixel echelle spectra of FG Sge secured two weeks before the drastic dimming of the star in 1992 are presented....

(no description available)

The original catalogue (files *.ori) contains condensed descriptions of all spectroscopic abundance analyses (as far as the metallicity is derived) are given for normal stars...