139 citations · 202 across the 7 of their papers we have counts for
8 papers
Periodic Gamma-ray Modulation of the blazar PG 1553+113 Confirmed by Fermi-LAT and Multi-wavelength Observations
S. Abdollahi, L. Baldini, G. Barbiellini +98
A 2.1-year periodic oscillation of the gamma-ray flux from the blazar PG 1553+113 has previously been tentatively identified in almost 7 year of data from the Fermi Large Area Tele…
The nature of the metal-rich thick disk
T. Bensby, A. R. Zenn, M. S. Oey +1
We have traced the Galactic thick disk to its, to date, highest metallicities. Based on high-resolution spectroscopic observations of 187 F and G dwarf stars that kinematically can…
The origin and chemical evolution of carbon in the Galactic thin and thick disks
T. Bensby, S. Feltzing
[ABRIDGED] In order to trace the origin and evolution of carbon in the Galactic disk we have determined carbon abundances in 51 nearby F and G dwarf stars. The sample is divided in…
Carbon Abundances in the Galactic Thin and Thick Disks
T. Bensby, S. Feltzing
Although carbon is, together with oxygen and nitrogen, one of the most important elements in the study of galactic chemical evolution its production sites are still poorly known an…
On the transmission- to reprocessing-dominated spectral state transitions in Seyfert 2 galaxies
M. Guainazzi, A. C. Fabian, K. Iwasawa +2
We present Chandra and XMM-Newton observations of a small sample (11 objects) of optically-selected Seyfert~2 galaxies, for which ASCA and BeppoSAX had suggested Compton-thick obsc…
A study of the 15 micron quasars in the ELAIS N1 and N2 fields
A. Afonso-Luis, E. Hatziminaoglou, I. Perez-Fournon +8
This paper discusses properties of the European Large Area ISO Survey 15 micron quasars and tries to establish a robust method of quasar selection for future use within the Spitzer…