Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Salvetti D"'
Autor:
De Luca, A., Salvaterra, R., Belfiore, A., Carpano, S., D'Agostino, D., Haberl, F., Israel, G. L., Law-Green, D., Lisini, G., Marelli, M., Novara, G., Read, A. M., Rodriguez-Castillo, G., Rosen, S. R., Salvetti, D., Tiengo, A., Vianello, G., Watson, M. G., Delvaux, C., Dickens, T., Esposito, P., Greiner, J., Haemmerle, H., Kreikenbohm, A., Kreykenbohm, S., Oertel, M., Pizzocaro, D., Pye, J. P., Sandrelli, S., Stelzer, B., Wilms, J., Zagaria, F.
Temporal variability in flux and spectral shape is ubiquitous in the X-ray sky and carries crucial information about the nature and emission physics of the sources. The EPIC instrument on board the XMM-Newton observatory is the most powerful tool for
Externí odkaz:
http://arxiv.org/abs/2105.02895
Blazars and in particular the subclass of high synchrotron peaked Active Galactic Nuclei are among the main targets for the present generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) and will remain of great importance for very high-energ
Externí odkaz:
http://arxiv.org/abs/1909.10834
Autor:
Sidoli, L., Postnov, K. A., Belfiore, A., Marelli, M., Salvetti, D., Salvaterra, R., De Luca, A., Esposito, P.
The low luminosity, X-ray flaring activity, of the sub-class of high mass X-ray binaries called Supergiant Fast X-ray Transients, has been investigated using XMM-Newton public observations, taking advantage of the products made publicly available by
Externí odkaz:
http://arxiv.org/abs/1905.00897
Autor:
Chiaro, G., Meyer, M., Crespo, N. Alvarez, Britto, R. J., Marais, J. P., van Soelen, B., Salvetti, D., La Mura, G., Thompson, D. J
Publikováno v:
To be presented at the Eighth International Fermi Symposium (Oct 2018)
BL Lac Objects (BL Lacs) and Flat Spectrum Radio Quasars (FSRQs) are radio-loud active galaxies (AGNs) whose jets are seen at a small viewing angle (blazars), while Misaligned Active Galactic Nuclei (MAGNs) are mainly radiogalaxies of type FRI or FRI
Externí odkaz:
http://arxiv.org/abs/1808.05881
Autor:
Clark, C. J., Pletsch, H. J., Wu, J., Guillemot, L., Kerr, M., Johnson, T. J., Camilo, F., Salvetti, D., Allen, B., Anderson, D., Aulbert, C., Beer, C., Bock, O., Cuéllar, A., Eggenstein, H. -B., Fehrmann, H., Kramer, M., Kwang, S. A., Machenschalk, B., Nieder, L., Collaboration, the Fermi-LAT
Publikováno v:
2018, Science Advances, 4, eaao7228
Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsations have been detected from all rotation-powered MSPs. In an attempt
Externí odkaz:
http://arxiv.org/abs/1803.06855
Autor:
Mignani, R. P., Testa, V., Rea, N., Marelli, M., Salvetti, D., Torres, D., Wilhelmi, E. de Ona
We used the 10.4m Gran Telescopio Canarias to search for the optical counterparts to four isolated $\gamma$-ray pulsars, all detected in the X-rays by either \xmm\ or \chan\ but not yet in the optical. Three of them are middle-aged pulsars -- PSR\, J
Externí odkaz:
http://arxiv.org/abs/1803.07006
Autor:
Wu, J., Clark, C. J., Pletsch, H. J., Guillemot, L., Johnson, T. J., Torne, P., Champion, D. J., Deneva, J., Ray, P. S., Salvetti, D., Kramer, M., Aulbert, C., Beer, C., Bhattacharyya, B., Bock, O., Camilo, F., Cognard, I., Cuéllar, A., Eggenstein, H. B., Fehrmann, H., Ferrara, E. C., Kerr, M., Machenschalk, B., Ransom, S. M., Sanpa-Arsa, S., Wood, K.
We report on the analysis of 13 gamma-ray pulsars discovered in the Einstein@Home blind search survey using Fermi Large Area Telescope (LAT) Pass 8 data. The 13 new gamma-ray pulsars were discovered by searching 118 unassociated LAT sources from the
Externí odkaz:
http://arxiv.org/abs/1712.05395
Autor:
Marelli, M., Tiengo, A., De Luca, A., Salvetti, D., Saronni, L., Sidoli, L., Paizis, A., Salvaterra, R., Belfiore, A., Israel, G., Haberl, F., D'Agostino, D.
We performed a search for eclipsing and dipping sources in the archive of the EXTraS project - a systematic characterization of the temporal behaviour of XMM-Newton point sources. We discovered dips in the X-ray light curve of 3XMM J004232.1+411314,
Externí odkaz:
http://arxiv.org/abs/1711.05540
Autor:
Testa, V., Mignani, R. P., Rea, N., Marelli, M., Salvetti, D., Breeveld, A. A., Cusano, F., Carini, R.
We present the results of deep optical imaging of the radio/$\gamma$-ray pulsar PSR J2043+2740, obtained with the Large Binocular Telescope (LBT). With a characteristic age of 1.2 Myr, PSR J2043+2740 is one of the oldest (non recycled) pulsars detect
Externí odkaz:
http://arxiv.org/abs/1709.09169
Autor:
Gastaldello, F., Ghizzardi, S., Marelli, M., Salvetti, D., Molendi, S., De Luca, A., Moretti, A., Rossetti, M., Tiengo, A.
We show the results obtained in the FP7 European program EXTraS and in the ESA R&D ATHENA activity AREMBES aimed at a deeper understanding of the XMM-Newton background to better design the ATHENA mission. Thanks to an analysis of the full EPIC archiv
Externí odkaz:
http://arxiv.org/abs/1705.04174