Connecting the X-ray/UV variability of Fairall 9 with NICER: A Possible Warm Corona

Autor: Partington, Ethan R., Cackett, Edward M., Edelson, Rick, Horne, Keith, Gelbord, Jonathan, Kara, Erin, Malacaria, Christian, Miller, Jake A., Steiner, James F., Sanna, Andrea

The Seyfert 1 AGN Fairall 9 was targeted by NICER, Swift, and ground-based observatories for a $\sim$1000-day long reverberation mapping campaign. The following analysis of NICER spectra taken at a two-day cadence provides new insights into the struc

Externí odkaz: http://arxiv.org/abs/2410.21432

Proof of principle X-ray reflection mass measurement of the black hole in H1743-322

Autor: Nathan, Edward, Ingram, Adam, Steiner, James F., König, Ole, Dauser, Thomas, Lucchini, Matteo, Mastroserio, Guglielmo, van der Klis, Michiel, García, Javier A., Connors, Riley, Kara, Erin, Wang, Jingyi

The black hole X-ray binary H1743-322 lies in a region of the Galaxy with high extinction, and therefore it has not been possible to make a dynamical mass measurement. In this paper we make use of a recent model which uses the X-ray reflection spectr

Externí odkaz: http://arxiv.org/abs/2408.05268

An IXPE-Led X-ray Spectro-Polarimetric Campaign on the Soft State of Cygnus X-1: X-ray Polarimetric Evidence for Strong Gravitational Lensing

Autor: Steiner, James F., Nathan, Edward, Hu, Kun, Krawczynski, Henric, Dovciak, Michal, Veledina, Alexandra, Muleri, Fabio, Svoboda, Jiri, Alabarta, Kevin, Parra, Maxime, Bhargava, Yash, Matt, Giorgio, Poutanen, Juri, Petrucci, Pierre-Olivier, Tennant, Allyn F., Baglio, M. Cristina, Baldini, Luca, Barnier, Samuel, Bhattacharyya, Sudip, Bianchi, Stefano, Brigitte, Maimouna, Cabezas, Mauricio, Cangemi, Floriane, Capitanio, Fiamma, Casey, Jacob, Cavero, Nicole Rodriguez, Castellano, Simone, Cavazzuti, Elisabetta, Chun, Sohee, Churazov, Eugene, Costa, Enrico, Di Lalla, Niccolo, Di Marco, Alessandro, Egron, Elise, Ewing, Melissa, Fabiani, Sergio, Garcia, Javier A., Green, David A., Grinberg, Victoria, Hadrava, Petr, Ingram, Adam, Kaaret, Philip, Kislat, Fabian, Kitaguchi, Takao, Kravtsov, Vadim, Kubatova, Brankica, La Monaca, Fabio, Latronico, Luca, Loktev, Vladislav, Malacaria, Christian, Marin, Frederic, Marinucci, Andrea, Maryeva, Olga, Mastroserio, Guglielmo, Mizuno, Tsunefumi, Negro, Michela, Omodei, Nicola, Podgorny, Jakub, Rankin, John, Ratheesh, Ajay, Rhodes, Lauren, Russell, David M., Slechta, Miroslav, Soffitta, Paolo, Spooner, Sean, Suleimanov, Valery, Tombesi, Francesco, Trushkin, Sergei A., Weisskopf, Martin C., Zane, Silvia, Zdziarski, Andrzej A., Zhang, Sixuan, Zhang, Wenda, Zhou, Menglei, Agudo, Ivan, Antonelli, Lucio A., Bachetti, Matteo, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Bucciantini, Niccolo, Chen, Chien-Ting, Ciprini, Stefano, De Rosa, Alessandra, Del Monte, Ettore, Di Gesu, Laura, Donnarumma, Immacolata, Doroshenko, Victor, Ehlert, Steven R., Enoto, Teruaki, Evangelista, Yuri, Ferrazzoli, Riccardo, Gunji, Shuichi, Hayashida, Kiyoshi, Heyl, Jeremy, Iwakiri, Wataru, Jorstad, Svetlana G., Karas, Vladimir, Kolodziejczak, Jeffery J., Liodakis, Ioannis, Maldera, Simone, Manfreda, Alberto, Marscher, Alan P., Marshall, Herman L., Massaro, Francesco, Mitsuishi, Ikuyuki, Ng, Chi-Yung, O'Dell, Stephen L., Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel L., Perri, Matteo, Pesce-Rollins, Melissa, Pilia, Maura, Possenti, Andrea, Puccetti, Simonetta, Ramsey, Brian D., Roberts, Oliver J., Romani, Roger W., Sgro, Carmelo, Slane, Patrick, Spandre, Gloria, Swartz, Douglas A., Tamagawa, Toru, Tavecchio, Fabrizio, Taverna, Roberto, Tawara, Yuzuru, Thomas, Nicholas E., Trois, Alessio, Tsygankov, Sergey S., Turolla, Roberto, Vink, Jacco, Wu, Kinwah, Xie, Fei

We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May-June. Companion multiwavelength data during the campaign are likewise shown. The 2-8 keV X-ray

Externí odkaz: http://arxiv.org/abs/2406.12014

The 2018 outburst of MAXI J1820+070 as seen by Insight-HXMT

Autor: Fan, Ningyue, Li, Songyu, Zhan, Rui, Liu, Honghui, Zhang, Zuobin, Bambi, Cosimo, Ji, Long, Ma, Xiang, Steiner, James F., Zhang, Shuang-Nan, Zhou, Menglei

Publikováno v: Astrophys.J. 969: 61 (2024)

We present an analysis of the whole 2018 outburst of the black hole X-ray binary MAXI J1820+070 with Insight-HXMT data. We focus our study on the temporal evolution of the parameters of the source. We employ two different models to fit the disk's the

Externí odkaz: http://arxiv.org/abs/2404.12161

Dramatic Drop in the X-Ray Polarization of Swift J1727.8$-$1613 in the Soft Spectral State

Autor: Svoboda, Jiří, Dovčiak, Michal, Steiner, James F., Kaaret, Philip, Podgorný, Jakub, Poutanen, Juri, Veledina, Alexandra, Muleri, Fabio, Taverna, Roberto, Krawczynski, Henric, Brigitte, Maïmouna, Datta, Sudeb Ranjan, Bianchi, Stefano, Segura, Noel Castro, García, Javier A., Ingram, Adam, Matt, Giorgio, Muñoz-Darias, Teo, Nathan, Edward, Weisskopf, Martin C., Altamirano, Diego, Baldini, Luca, Bollemeijer, Niek, Capitanio, Fiamma, Egron, Elise, Emami, Razieh, Hu, Kun, Marra, Lorenzo, Mastroserio, Guglielmo, Negro, Michela, Petrucci, Pierre-Olivier, Ratheesh, Ajay, Cavero, Nicole Rodriguez, Soffitta, Paolo, Tombesi, Francesco, Yang, Yi-Jung, Zhang, Yuexin

Publikováno v: The Astrophysical Journal Letters, 2024, 966, L35

Black-hole X-ray binaries exhibit different spectral and timing properties in different accretion states. The X-ray outburst of a recently discovered and extraordinarily bright source, Swift$~$J1727.8$-$1613, has enabled the first investigation of ho

Externí odkaz: http://arxiv.org/abs/2403.04689