Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Porquet, Delphine"'
Publikováno v:
SF2A-2015
SF2A-2015, Jun 2015, Toulouse, France
SF2A-2015, Jun 2015, Toulouse, France
International audience; Sgr A* is the closest supermassive black hole (˜ 4 × 10^6 M_⊙) located at the dynamical center of our galaxy. It has a very low bolometric luminosity (˜ 9.4 × 10^{-9} times the Eddington luminosity) and, consequently, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::320e10baf04ba8f3639aa937a34ec2d2
https://hal.archives-ouvertes.fr/hal-02327486
https://hal.archives-ouvertes.fr/hal-02327486
Autor:
Neilsen, Joseph, Nowak, Michael, Gammie, Charles, F., Dexter, Jason, Markoff, Sera, Haggard, Daryl, Nayakshin, Sergei, Wang, Q., Daniel, Grosso, Nicolas, Porquet, Delphine, Tomsick, John, Degenaar, Nathalie, Fragile, P., Christopher, Wijnands, Rudy, Miller, Jon, M., Baganoff, Frederick, K.
Publikováno v:
American Astronomical Society, AAS Meeting #225
American Astronomical Society, AAS Meeting #225, 2015, Seattle, United States
American Astronomical Society, AAS Meeting #225, 2015, Seattle, United States
International audience; Over the last decade, X-ray observations of Sgr A* have revealed a black hole in a deep sleep, punctuated roughly once per day by brief ares. The extreme X-ray faintness of this supermassive black hole has been a long-standing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::fd2edf0162b0e1d7664c3068fc3ef1fe
https://hal.archives-ouvertes.fr/hal-02327512
https://hal.archives-ouvertes.fr/hal-02327512
Autor:
Porquet, Delphine
Publikováno v:
From the Dolomites to the event horizon: sledging down the black hole potential well
From the Dolomites to the event horizon: sledging down the black hole potential well, Jul 2013, Sesto, Italy
From the Dolomites to the event horizon: sledging down the black hole potential well, Jul 2013, Sesto, Italy
International audience; Not Available
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8ef5521f65a30b0aefdd2760327b0ab8
https://hal.archives-ouvertes.fr/hal-02326958
https://hal.archives-ouvertes.fr/hal-02326958
Autor:
Dovciak, Michal, Matt, Giorgio, Bianchi, Stefano, Boller, Thomas, Brenneman, Laura, Bursa, Michal, D Ai, Antonino, Di Salvo, Tiziana, Marco, Barbara, Goosmann, Rene, Karas, Vladimir, Iwasawa, Kazushi, Kara, Erin, Miller, Jon, Miniutti, Giovanni, Papadakis, Iossif, Petrucci, Pierre-Olivier, Ponti, Gabriele, Porquet, Delphine, Reynolds, Chris, Risaliti, Guido, Rozanska, Agata, Luca Zampieri, Zezas, Andreas, Young, Andrew
Publikováno v:
NASA Astrophysics Data System
ResearcherID
ResearcherID
Most of the action in Active Galactic Nuclei (AGN) occurs within a few tens of gravitational radii from the supermassive black hole, where matter in the accretion disk may lose up to almost half of its energy with a copious production of X-rays, emit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff5ec23a19425b2e53c7b415bd6b1b62
https://hal.archives-ouvertes.fr/hal-02326949
https://hal.archives-ouvertes.fr/hal-02326949
Autor:
Mossoux, E., Grosso, N., Bushouse, H., Eckart, A., Yusef-Zadeh, F., Plambeck, D., Peissker, F., Valencia-S., M., Porquet, D., Roberts, D.
Publikováno v:
The X-ray Universe 2017
The X-ray Universe 2017, Jun 2017, Rome, Italy
The X-ray Universe 2017, Jun 2017, Rome, Italy
International audience; We studied the flaring activity of the Galactic Center supermassive black hole Sgr A* close to the DSO/G2 pericenter passage with XMM-Newton, HST/WFC3, VLT/SINFONI, VLA and CARMA. We detected 3 and 2 NIR and 2 X-ray flares wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ffee51418c3405b85ec58f677a673006
https://hal.archives-ouvertes.fr/hal-02107285
https://hal.archives-ouvertes.fr/hal-02107285
Autor:
Mossoux, E., Grosso, N., Howard Bushouse, Eckart, A., Yusef-Zadeh, F., Plambeck, R. L., Peissker, F., Valencia, M., Porquet, D., Cotton, W. D., Roberts, D. A.
Publikováno v:
NASA Astrophysics Data System
SF2A-2016
SF2A-2016, Jun 2016, Lyon, France
SF2A-2016
SF2A-2016, Jun 2016, Lyon, France
The supermassive black hole Sgr A* is located at the Milky Way center. We studied its flaring activity close to the DSO/G2 pericenter passage to constrain the physical properties and origin of the flares. Simultaneous/coordinated observations were ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92fc6fcdeecb29bc0c55d0e132cbcd9e
https://hal.archives-ouvertes.fr/hal-02327470
https://hal.archives-ouvertes.fr/hal-02327470
Autor:
Neilsen, Joseph, Nowak, Michael, Gammie, Charles, F., Dexter, Jason, Markoff, Sera, Haggard, Daryl, Nayakshin, Sergei, Wang, Q., Daniel, Grosso, N., Porquet, D., Tomsick, John, Degenaar, Nathalie, Fragile, P., Christopher, Houck, John, C., Wijnands, Rudy, Miller, Jon, M., Baganoff, Frederick, K.
Publikováno v:
American Astronomical Society, HEAD meeting #14
American Astronomical Society, HEAD meeting #14, Aug 2014, Chicago, France
American Astronomical Society, HEAD meeting #14, Aug 2014, Chicago, France
International audience; Over the last decade, X-ray observations of Sgr A* have revealed a black hole in a deep sleep, punctuated roughly once per day by brief ares. The extreme X-ray faintness of this supermassive black hole has been a long-standing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5e8235aa6ff6af6854805e8f9b8cba9f
https://hal.archives-ouvertes.fr/hal-02327535
https://hal.archives-ouvertes.fr/hal-02327535
Autor:
Yusef-Zadeh, Farhad, Bushouse, Howard, A., Cotton, William, D., Grosso, N., Haggard, Daryl, Heinke, Craig, O., Mossoux , E., Porquet, D., Roberts, Douglas, A., Wardle, M.
Publikováno v:
American Astronomical Society, HEAD meeting #14
American Astronomical Society, HEAD meeting #14, 2014, Chicago, United States
American Astronomical Society, HEAD meeting #14, 2014, Chicago, United States
International audience; Preliminary results of our monitoring of Sgr A* in coordination with Chandra, XMM and HST will be presented. The main focus will be on the cross correlation analysis of radio and X-ray flare emission on September 12, 2013 when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b498b74fbb9c1eba909ed1964ffc555a
https://hal.archives-ouvertes.fr/hal-02327527
https://hal.archives-ouvertes.fr/hal-02327527
Autor:
Cappi, M., Done, C., Behar, E., Bianchi, S., Braito, V., Costantini, E., Mauro Dadina, Feruglio, C., Fiore, F., Gallagher, S., Gandhi, P., Grosso, N., Kaastra, J., King, A., Lobban, A., Maiolino, R., Piconcelli, E., Ponti, G., Porquet, D., Pounds, K., Proga, D., Ranalli, P., Reeves, J., Risaliti, G., Rodriguez Hidalgo, P., Rovilos, E., Sim, S., Stewart, G., Tombesi, F., Tsuru, T. G., Vaughan, S., Wang, D., Worrall, D.
Publikováno v:
NASA Astrophysics Data System
Understanding the astrophysics of feedback in active galactic nuclei (AGN) is key to understanding the growth and co-evolution of supermassive black holes and galaxies. AGN-driven winds/outflows are potentially the most effective way of transporting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aef178427855b882cf50c2e3032bf1df
https://hal.archives-ouvertes.fr/hal-02326942
https://hal.archives-ouvertes.fr/hal-02326942
Autor:
Dodds-Eden, K., Porquet, D., Trap, G., Quataert, E., Gillessen, S., Grosso, N., Genzel, R., Goldwurm, A., Yusef-Zadeh, F., Trippe, S., Bartko, H., Eisenhauer, F., Ott, T., Fritz, T., Pfuhl, O.
Publikováno v:
The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies
The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies, Oct 2009, Shangai, China
The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies, Oct 2009, Shangai, China
International audience; We summarize recent observations and modeling of the brightest Sgr A* flare to be observed simultaneously in (near)-infrared and X-rays to date. Trying to explain the spectral characteristics of this flare through inverse Comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::eae10320ad12d6933ba0464fad0e82fd
https://hal.archives-ouvertes.fr/hal-02331038
https://hal.archives-ouvertes.fr/hal-02331038