631 citations · 1.3k across the 14 of their papers we have counts for
6 papers · 1 filter
Disentangling the Hercules stream
T. Bensby, M. S. Oey, S. Feltzing +1
Using high-resolution spectra of nearby F and G dwarf stars, we have investigated the detailed abundance and age structure of the Hercules stream. We find that the stars in the str…
Hercules stream stars and the metal-rich thick disk
T. Bensby, M. S. Oey, S. Feltzing +1
Using the MIKE spectrograph, mounted on the 6.5 m Magellan/Clay telescope at the Las Campanas observatory in Chile, we have obtained high-resolution spectra for 60 F and G dwarf st…
Absolute diffuse calibration of IRAC through mid-infrared and radio study of HII regions
Martin Cohen, Anne J. Green, Marilyn R. Meade +9
We investigate the diffuse absolute calibration of the InfraRed Array Camera on the Spitzer Space Telescope at 8.0microns using a sample of 43 HII regions with a wide range of morp…
Technetium and the third dredge up in AGB stars II. Bulge stars
Stefan Uttenthaler, Josef Hron, Thomas Lebzelter +3
We searched for Technetium (Tc) in a sample of bright oxygen-rich asymptotic giant branch (AGB) stars located in the outer galactic bulge. Tc is an unstable element synthesised via…
3D Studies of Neutral and Ionised Gas and Stars in Seyfert and Inactive Galaxies
C. G. Mundell, G. Dumas, E. Schinnerer +8
We are conducting the first systematic 3D spectroscopic imaging survey to quantify the properties of the atomic gas (HI) in a distance-limited sample of 28 Seyfert galaxies and a s…
Simulating Cosmic Reionization at Large Scales II: the 21-cm Emission Features and Statistical Signals
Garrelt Mellema, Ilian T. Iliev, Ue-Li Pen +1
We present detailed predictions for the redshifted 21cm signal from the epoch of reionization. These predictions are obtained from radiative transfer calculations on the results of…