402 citations
- National Institute for AstrophysicsIT7 papers
- Space Telescope Science InstituteUS7 papers
- University of CataniaIT7 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR5 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di CataniaIT5 papers
- Sorbonne UniversitéFR5 papers
- United States Virgin Islands Department of HealthVI5 papers
- Université Paris CitéFR5 papers
- Astronomical Observatory of CapodimonteIT4 papers
- CEA Paris-SaclayFR4 papers
- Heidelberg UniversityDE4 papers
27 papers · 1 filter
Multiline Zeeman signatures as demonstrated through the Pseudo-line
M. Semel, J. C. Ramirez Velez, M. J. Stift +3
In order to get a significant Zeeman signature in the polarised spectra of a magnetic star, we usually 'add' the contributions of numerous spectral lines; the ultimate goal is to r…
The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae
Paolo A. Mazzali, Stefano Valenti, Massimo Della Valle +38
The only supernovae (SNe) to have shown early gamma-ray or X-ray emission thus far are overenergetic, broad-lined Type Ic SNe (Hypernovae - HNe). Recently, SN 2008D shows several n…
Magnetic activity in the young star SAO 51891
K. Biazzo, A. Frasca, E. Marilli +3
We present preliminary results on a study based on contemporaneous photometric and spectroscopic observations of the young K0-1V star SAO 51891. We find that SAO 51891, a possible…
Outliers from the mainstream: how a massive star can produce a gamma-ray burst
S. Campana, N. Panagia, D. Lazzati +12
It is now recognized that long-duration Gamma-Ray Bursts (GRBs) are linked to the collapse of massive stars, based on the association between (low-redshift) GRBs and (type Ic) core…
The UDF05 Follow-up of the HUDF: II. Constraints on Reionization from z-dropout Galaxies
P. A. Oesch, C. M. Carollo, M. Stiavelli +12
[Abridged] We detect three (plus one less certain) z-dropout sources in two separate fields of our UDF05 HST NICMOS images. These z~7 Lyman-Break Galaxy (LBG) candidates allow us t…
Primordial Entropy Production and Lambda-driven Inflation from Quantum Einstein Gravity
Alfio Bonanno, Martin Reuter
We review recent work on renormalization group (RG) improved cosmologies based upon a RG trajectory of Quantum Einstein Gravity (QEG) with realistic parameter values. In particular…