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894 papers · 1 filter
Radio-loud AGNs at high redshifts and the cosmic microwave background
G. Ghisellini, A. Celotti, F. Tavecchio +2
We discuss how the interaction between the electrons in a relativistic jet and the Cosmic Microwave Background (CMB) affects the observable properties of radio-loud AGN at early ep…
AGB stars and presolar grains
M. Busso, O. Trippella, E. Maiorca +1
Among presolar materials recovered in meteorites, abundant SiC and AlO grains of AGB origins were found. They showed records of C, N, O, Al and s-element isotopi…
The main sequences of NGC2808: constraints on the early disc accretion scenario
Santi Cassisi, Maurizio Salaris
[Abridged] A new scenario --early disc accretion-- has been proposed very recently to explain the origin of the multiple population phenomenon in Galactic globular clusters. It env…
From Theory to Observations and viceversa: theoretical uncertainties and observational constraints
Santi Cassisi
During these last decades, our knowledge of evolutionary and structural properties of stars of different mass and chemical composition is significantly improved. This result has be…
The theory of pulsar wind nebulae
E. Amato
I review the current status of our theoretical understanding of Pulsar Winds and associated nebulae (PWNe). In recent years, axisymmetric models of pulsar winds with a latitude dep…
Photometry of the progenitor of Nova Del 2013 (V339 Del) and calibration of a deep BVRI photometric
Ulisse Munari, Arne Henden
The Asiago plate archive has been searched for old plates covering the region of the sky containing Nova Del 2013 (V339 Del). The brightness of the progenitor was measured against…