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162 papers · 1 filter
Search for 7Be in the outburst of four recent novae
Paolo Molaro, Luca Izzo, Piercarlo Bonifacio +3
Following the recent detection of 7Be in the outburst spectra of Classical Novae we report the search for this isotope in the outbursts of four recent bright novae by means of high…
Final Spitzer IRAC Observations of the Rise and Fall of SN 1987A
Richard G. Arendt, Eli Dwek, Patrice Bouchet +4
Spitzer's final Infrared Array Camera (IRAC) observations of SN 1987A show the 3.6 and 4.5 m emission from the equatorial ring (ER) continues a period of steady decline. Deconvo…
The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2017/2018 follow-up campaign: Discovery of 10 lensed quasars and 10 quasar pairs
C. Lemon, M. W. Auger, R. McMahon +65
We report the results of the STRong lensing Insights from the Dark Energy Survey (STRIDES) follow-up campaign of the late 2017/early 2018 season. We obtained spectra of 65 lensed q…
Galactic archaeology at high redshift: inferring the nature of GRB host galaxies from abundances
Marco Palla, Francesca Matteucci, Francesco Calura +1
We identify the nature of high redshift long Gamma-Ray Bursts (LGRBs) host galaxies by comparing the observed abundance ratios in the interstellar medium with detailed chemical evo…
Probing black hole accretion tracks, scaling relations and radiative efficiencies from stacked X-ray active galactic nuclei
Francesco Shankar, David H. Weinberg, Christopher Marsden +25
The masses of supermassive black holes at the centres of local galaxies appear to be tightly correlated with the mass and velocity dispersions of their galactic hosts. However, the…
Climate bistability of Earth-like exoplanets
Murante G., Provenzale A., Vladilo G. +8
Before about 500 million years ago, most probably our planet experienced temporary snowball conditions, with continental and sea ices covering a large fraction of its surface. This…