46 citations · 46 across the 2 of their papers we have counts for
6 papers
Connecting the primordial and Galactic deuterium abundances
Gary Steigman, Donatella Romano, Monica Tosi
The deuterium abundances inferred from observations of the interstellar medium within 1-2 kpc of the Sun range over a factor of three and the corresponding oxygen abundances show a…
Quantifying the uncertainties of chemical evolution studies. I. The stellar initial mass function and the stellar lifetimes
Donatella Romano, Cristina Chiappini, Francesca Matteucci +1
The stellar initial mass function and the stellar lifetimes are basic ingredients of chemical evolution models, for which different recipes can be found in the literature. In this…
Chemical and dynamical evolution in gas-rich dwarf galaxies
Simone Recchi, Francesca Matteucci, Annibale D'Ercole
We study the effect of a single, instantaneous starburst in a gas-rich dwarf galaxy on the dynamical and chemical evolution of its interstellar medium. We consider the energetic in…
Evidence for inverse Compton emission in the powerful radio galaxy 3C 219
G. Brunetti, A. Comastri, G. Setti +1
Spectral analysis of ROSAT PSPC and ASCA archive data and a recent ROSAT HRI observation of the powerful FRII radio galaxy 3C 219 reveal an absorbed point-like source, coincident w…
BeppoSax Spectral Survey of soft X-ray selected BL Lacs
A. Wolter, A. Comastri, G. Ghisellini +10
We present X-ray spectra obtained with BeppoSAX (Satellite per Astronomia X) of 10 BL Lac objects, selected from the Einstein Medium Sensitivity and Slew Surveys. We find that in a…
ASCA detection of the FeK edge in the spectrum of the Seyfert 2 galaxy IRAS 04575-7537: a sign of a complex absorber
C. Vignali, A. Comastri, G. M. Stirpe +5
ASCA X-ray spectral analysis of the Seyfert 2 galaxy IRAS 04575-7537 is presented. The main result is the presence of a significant iron edge at a rest energy of 7.13^+0.21_-0.16 k…