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In the thick of it: metal-poor disc stars in RAVE
G. Kordopatis, G. Gilmore, R. F. G. Wyse +17
By selecting in the RAVE-DR4 survey the stars located between 1 and 2 kpc above the Galactic plane, we question the consistency of the simplest three-component model (thin disc, th…
A new stellar chemo-kinematic relation reveals the merger history of the Milky Way disc
I. Minchev, C. Chiappini, M. Martig +27
The velocity dispersions of stars near the Sun are known to increase with stellar age, but age can be difficult to determine so a proxy like the abundance of alpha elements (e.g.,…
A RAVE Investigation on Galactic open Clusters I. Radial velocities and metallicities
C. Conrad, R. -D. Scholz, N. V. Kharchenko +25
Context. Galactic open clusters (OCs) mainly belong to the young stellar population in the Milky Way disk, but are there groups and complexes of OCs that possibly define an additio…
The RAdial Velocity Experiment (RAVE): Fourth data release
G. Kordopatis, G. Gilmore, M. Steinmetz +48
We present the stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances and distances determined for 4…
Chemical gradients in the Milky Way from the RAVE data. I. Dwarf stars
C. Boeche, A. Siebert, T. Piffl +20
Aim: We aim at measuring the chemical gradients of the elements Mg, Al, Si, and Fe along the Galactic radius to provide new constraints on the chemical evolution models of the Gala…
Chromospherically Active Stars in the RAVE Survey. I. The Catalogue
M. Žerjal, T. Zwitter, G. Matijevič +15
RAVE, the unbiased magnitude limited survey of the southern sky stars, contained 456,676 medium-resolution spectra at the time of our analysis. Spectra cover the CaII IRT range whi…
Diffuse interstellar band at 8620 Å in RAVE: A new method for detecting the diffuse interstellar band in spectra of cool stars
J. Kos, T. Zwitter, E. K. Grebel +16
Diffuse interstellar bands are usually observed in spectra of hot stars, where interstellar lines are rarely blended with stellar ones. The need for hot stars is a strong limitatio…
The RAVE survey: the Galactic escape speed and the mass of the Milky Way
T. Piffl, C. Scannapieco, J. Binney +22
We construct new estimates on the Galactic escape speed at various Galactocentric radii using the latest data release of the Radial Velocity Experiment (RAVE DR4). Compared to prev…
Galactic kinematics and dynamics from RAVE stars
James Binney, Ben Burnett, Georges Kordopatis +15
We analyse the kinematics of ~400000 RAVE stars. We split the sample into hot and cold dwarfs, red-clump and non-clump giants. The kinematics of the clump giants are consistent wit…
Constraints on the Galactic Bar from the Hercules stream as traced with RAVE across the Galaxy
T. Antoja, A. Helmi, W. Dehnen +20
Non-axisymmetries in the Galactic potential (spiral arms and bar) induce kinematic groups such as the Hercules stream. Assuming that Hercules is caused by the effects of the Outer…
New distances to RAVE stars
James Binney, Ben Burnett, Georges Kordopatis +16
Probability density functions are determined from new stellar parameters for the distance moduli of stars for which the RAdial Velocity Experiment (RAVE) has obtained spectra with…
The relation between chemical abundances and kinematics of the Galactic disc with RAVE
C. Boeche, C. Chiappini, I. Minchev +20
Aims: We study the relations between stellar kinematics and chemical abundances of a large sample of RAVE giants in search for selection criteria needed for disentangling different…
Characterisation of the Galactic thin disc with Corot targets
J. -C. Gazzano, G. Kordopatis, M. Deleuil +3
We use kinematical and chemical properties of 754 Corot stars to characterise the stellar populations of the Milky Way disc in three beams close the Galactic plane. From the atmosp…