160 citations · 599 across the 13 of their papers we have counts for
13 papers
Opacity effect on core-shift and the spectral properties of jets
R. Sharma, M. Massi, G. Torricelli-Ciamponi
There is theoretical and observational evidence that the jet core position changes with frequency. However, the core position for a given frequency may vary with time in the case o…
Revisiting LS I +61 303 with VLBI astrometry
Y. W. Wu, G. Torricelli-Ciamponi, M. Massi +4
We conducted multi-epoch VLBA phase reference observations of LS I +61 303 in order to study its precessing radio jet. Compared to similar observations in 2006, we find that the ob…
Understanding the periodicities in radio and GeV emission from LS I+61303
F. Jaron, G. Torricelli-Ciamponi, M. Massi
Accretion models predict two ejections along the eccentric orbit of LS I +61 303: one major ejection at periastron and a second, lower ejection towards apastron. We develop a physi…
Origin of the long-term modulation of radio emission of LS I +61 303
Maria Massi, Guidetta Torricelli-Ciamponi
One of the most unusual aspects of the X-ray binary LSI +61 303 is that at each orbit (P1=26.4960 \pm 0.0028 d) one radio outburst occurs whose amplitude is modulated with Plong, a…
Search for X-ray occultations in Active Galactic Nuclei
G. Torricelli-Ciamponi, P. Pietrini, G. Risaliti +1
Recent time-resolved spectral studies of a few Active Galactic Nuclei in hard X-rays revealed occultations of the X-ray primary source probably by Broad Line Region (BLR) clouds. A…
Intrinsic physical properties and Doppler boosting effects in LSI+61303
M. Massi, G. Torricelli-Ciamponi
Our aim is to show how variable Doppler boosting of an intrinsically variable jet can explain the long-term modulation of 1667 \pm 8 days observed in the radio emission of LSI+6130…