91 citations · 166 across the 3 of their papers we have counts for
6 papers
Peak energy of the prompt emission of long Gamma Ray Bursts vs their fluence and peak flux
Lara Nava, Giancarlo Ghirlanda, Gabriele Ghisellini +1
The spectral-energy and (luminosity) correlations in long GRBs are being hotly debated to establish, first of all, their reality against possible selection effects. These are best…
Determining element abundances of [WC]-type Central Stars for probing stellar evolution and nucleosynthesis
H. Todt, M. Peña, W. -R. Hamann +1
[WC]-type CSPNs are hydrogen-deficient Central Stars of Planetary Nebulae showing strong stellar winds and a carbon-rich chemistry. We have analyzed new high-resolution spectra of…
Are GRB 980425 and GRB 031203 real outliers or twins of GRB 060218?
G. Ghisellini, G. Ghirlanda, S. Mereghetti +3
GRB 980425 and GRB 031203 are apparently two outliers with respect to the correlation between the isotropic equivalent energy E_iso emitted in the prompt radiation phase and the pe…
Cosmological constraints with GRBs: homogeneous medium vs wind density profile
G. Ghirlanda, G. Ghisellini, C. Firmani +3
We present the constraints on the cosmological parameters obtained with the -- correlation found with the most recent sample of 19 GRBs with spectroscopically me…
The peak luminosity - peak energy correlation in GRBs
G. Ghirlanda, G. Ghisellini, C. Firmani +2
We derive the peak luminosity - peak energy (L_iso - E_peak) correlation using 22 long Gamma-Ray Bursts (GRBs) with firm redshift measurements. We find that its slope is similar to…
CO Depletion and Deuterium Fractionation in Prestellar Cores
Aurore Bacmann, Bertrand Lefloch, Cecilia Ceccarelli +3
We report the detection of D2CO in a sample of starless dense cores, in which we previously measured the degree of CO depletion. The deuterium fractionation is found extremely high…