Zobrazeno 81 - 90
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pro vyhledávání: '"Puccetti, Simonetta"'
Akademický článek
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Akademický článek
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Autor:
Hong, JaeSub, Mori, Kaya, Hailey, Charles J., Nynka, Melania, Zhang, Shuo, Gotthelf, Eric, Fornasini, Francesca M., Krivonos, Roman, Bauer, Franz, Perez, Kerstin, Tomsick, John A., Bodaghee, Arash, Chiu, Jeng-Lun, Clavel, Maïca, Stern, Daniel, Grindlay, Jonathan E., Alexander, David M., Aramaki, Tsuguo, Baganoff, Frederick K., Barret, David, Barrière, Nicolas, Boggs, Steven E., Canipe, Alicia M., Christensen, Finn E., Craig, William W., Desai, Meera A., Forster, Karl, Giommi, Paolo, Grefenstette, Brian W., Harrison, Fiona A., Hong, Dooran, Hornstrup, Allan, Kitaguchi, Takao, Koglin, Jason E., Madsen, Kristen K., Mao, Peter H., Miyasaka, Hiromasa, Perri, Matteo, Pivovaroff, Michael J., Puccetti, Simonetta, Rana, Vikram, Westergaard, Niels J., Zhang, William W., Zoglauer, Andreas
We present the first survey results of hard X-ray point sources in the Galactic Center (GC) region by NuSTAR. We have discovered 70 hard (3-79 keV) X-ray point sources in a 0.6 deg^2 region around Sgr A* with a total exposure of 1.7 Ms, and 7 sources
Externí odkaz:
http://arxiv.org/abs/1605.03882
Autor:
Pacucci, Fabio, Ferrara, Andrea, Grazian, Andrea, Fiore, Fabrizio, Giallongo, Emanuele, Puccetti, Simonetta
The first black hole seeds, formed when the Universe was younger than 500 Myr, are recognized to play an important role for the growth of early (z ~ 7) super-massive black holes. While progresses have been made in understanding their formation and gr
Externí odkaz:
http://arxiv.org/abs/1603.08522
Autor:
Mori, Kaya, Hailey, Charles J., Krivonos, Roman, Hong, Jaesub, Ponti, Gabriele, Bauer, Franz, Perez, Kerstin, Nynka, Melania, Zhang, Shuo, Tomsick, John A., Alexander, David M., Baganoff, Frederick K., Barret, Didier, Barriere, Nicolas, Boggs, Steven E., Canipe, Alicia M., Christensen, Finn E., Craig, William W., Forster, Karl, Giommi, Paolo, Grefenstette, Brian W., Grindlay, Jonathan E., Harrison, Fiona A., Hornstrup, Allan, Kitaguchi, Takao, Koglin, Jason E., Luu, Vy, Madsen, Kristen K., Mao, Peter H., Miyasaka, Hiromasa, Perri, Matteo, Pivovaroff, Michael J., Puccetti, Simonetta, Rana, Vikram, Stern, Daniel, Westergaard, Niels J., Zhang, William W., Zoglauer, Andreas
We present the first sub-arcminute images of the Galactic Center above 10 keV, obtained with NuSTAR. NuSTAR resolves the hard X-ray source IGR J17456-2901 into non-thermal X-ray filaments, molecular clouds, point sources and a previously unknown cent
Externí odkaz:
http://arxiv.org/abs/1510.04631
Autor:
Madsen, Kristin K., Harrison, Fiona A., Markwardt, Craig B., An, Hongjun, Grefenstette, Brian W., Bachetti, Matteo, Miyasaki, Hiromasa, Kitaguchi, Takao, Bhalerao, Varun, Boggs, Steve, Christensen, Finn E., Craig, William W., Forster, Karl, Fuerst, Felix, Hailey, Charles J., Perri, Matteo, Puccetti, Simonetta, Rana, Vikram, Stern, Daniel, Walton, Dominic J., Westergaard, Niels Jørgen, Zhang, William W.
Publikováno v:
ApJS, 220, 8, 2015
We present the calibration of the \textit{Nuclear Spectroscopic Telescope Array} (\nustar) X-ray satellite. We used the Crab as the primary effective area calibrator and constructed a piece-wise linear spline function to modify the vignetting respons
Externí odkaz:
http://arxiv.org/abs/1504.01672
Autor:
Bauer, Franz E., Arevalo, Patricia, Walton, Dominic J., Koss, Michael J., Puccetti, Simonetta, Gandhi, Poshak, Stern, Daniel, Alexander, David M., Balokovic, Mislav, Boggs, Steve E., Brandt, William N., Brightman, Murray, Christensen, Finn E., Comastri, Andrea, Craig, William W., Del Moro, Agnese, Hailey, Charles J., Harrison, Fiona A., Hickox, Ryan, Luo, Bin, Markwardt, Craig B., Marinucci, Andrea, Matt, Giorgio, Rigby, Jane R., Rivers, Elizabeth, Saez, Cristian, Treister, Ezequiel, Urry, C. Megan, Zhang, William W.
We report on observations of NGC1068 with NuSTAR, which provide the best constraints to date on its $>10$~keV spectral shape. We find no strong variability over the past two decades, consistent with its Compton-thick AGN classification. The combined
Externí odkaz:
http://arxiv.org/abs/1411.0670
Autor:
Miliucci, Marco, Volpe, Angela, Fabiani, Sergio, Feroci, Marco, Latronico, Luca, Macculi, Claudio, Piro, Luigi, D'Andrea, Matteo, Gatti, Flavio, Puccetti, Simonetta, Soffitta, Paolo, Cavazzuti, Elisabetta
Publikováno v:
Condensed Matter; Mar2024, Vol. 9 Issue 1, p11, 12p
Autor:
Puccetti, Simonetta, Comastri, Andrea, Fiore, Fabrizio, Arévalo, Patricia, Risaliti, Guido, Bauer, Franz E., Brandt, William N., Stern, Daniel, Harrison, Fiona A., Alexander, David M., Boggs, Steve E., Christensen, Finn E., Craig, William W., Gandhi, Poshak, Hailey, Charles J., Koss, Michael R., Lansbury, George B., Luo, Bin, Madejski, Greg M., Matt, Giorgio, Walton, Dominic J., Zhang, Will
We present a broadband (~0.5-79 keV) spectral and temporal analysis of multiple NuSTAR observations combined with archival Suzaku and Chandra data of NGC4945, the brightest extragalactic source at 100 keV. We observe hard X-ray (> 10 keV) flux and sp
Externí odkaz:
http://arxiv.org/abs/1407.3974
Autor:
Castignani, Gianluca, Guetta, Dafne, Pian, Elena, Amati, Lorenzo, Puccetti, Simonetta, Dichiara, Simone
Most Gamma-Ray Bursts (GRBs) detected by the Fermi Gamma-ray Space Telescope exhibit a delay of up to about 10 seconds between the trigger time of the hard X-ray signal as measured by the Fermi GBM and the onset of the MeV-GeV counterpart detected by
Externí odkaz:
http://arxiv.org/abs/1403.1199