Zobrazeno 1 - 10
of 645
pro vyhledávání: '"Schulz, Norbert"'
Autor:
Psaradaki, Ioanna, Mehdipour, Missagh, Rogantini, Daniele, Costantini, Elisa, Schulz, Norbert, Zeegers, Sascha, Caruso, Eleonora
Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the role and origin of dust remain poorly understood. High-resolution X-ray
Externí odkaz:
http://arxiv.org/abs/2411.02270
Autor:
Sanjurjo-Ferrín, Graciela, Torrejón, Jose Miguel, Oskinova, Lida, Postnov, Konstantin, Rodes-Roca, Jose Joaquín, Schulz, Norbert, Nowak, Michael
Cen X-3 is a compact, high-mass X-ray binary (HMXRB), likely powered by Roche lobe overflow. We present a phase-resolved X-ray spectral and timing analysis of a target of opportunity \textit{Chandra} observation made during a low-flux to high-flux tr
Externí odkaz:
http://arxiv.org/abs/2409.13320
Autor:
Schulz, Norbert S., Huenemoerder, David P., Principe, David A., Gagne, Marc, Günther, Hans Moritz, Kastner, Joel, Nichols, Joy, Pollock, Andrew, Preibisch, Thomas, Testa, Paola, Reale, Fabio, Favata, Fabio, Canizares, Claude R.
The Orion Nebula Cluster (ONC) is the closest site of very young ($\sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with masses ranging from $\sim$ 0.1 to 35 $M_\odot$. The Chandra HETGS Orion Legacy Pro
Externí odkaz:
http://arxiv.org/abs/2404.19676
Autor:
Huenemoerder, David P., Pradhan, Pragati, Canizares, Claude R., Gunderson, Sean, Ignace, Richard, Nichols, Joy S., Pollock, A. M. T., Schulz, Norbert S., Swarm, Dustin K., Torrejon, Jose M.
High-resolution X-ray spectra of $\pi\,$Aqr, a $\gamma\,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a lack of He-like ions, indicating
Externí odkaz:
http://arxiv.org/abs/2404.16977
Autor:
Marshall, Herman L., Ng, Mason, Rogantini, Daniele, Heyl, Jeremy, Tsygankov, Sergey S., Poutanen, Juri, Costa, Enrico, Zane, Silvia, Malacaria, Christian, Agudo, Ivan, Antonelli, Lucio A., Bachetti, Matteo, Baldini, Luca, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bianchi, Stefano, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Bucciantini, Niccolo, Capitanio, Fiamma, Castellano, Simone, Cavazzuti, Elisabetta, Ciprini, Stefano, De Rosa, Alessandra, Del Monte, Ettore, Di Gesu, Laura, Di Lalla, Niccolo, Di Marco, Alessandro, Donnarumma, Immacolata, Doroshenko, Victor, Dovvciak, Michal, Ehlert, Steven R., Enoto, Teruaki, Evangelista, Yuri, Fabiani, Sergio, Ferrazzoli, Riccardo, Garcia, Javier A., Gunji, Shuichi, Hayashida, Kiyoshi, Iwakiri, Wataru, Jorstad, Svetlana G., Karas, Vladimir, Kitaguchi, Takao, Kolodziejczak, Jeffery J., Krawczynski, Henric, La Monaca, Fabio, Latronico, Luca, Liodakis, Ioannis, Maldera, Simone, Manfreda, Alberto, Marin, Frederic, Marinucci, Andrea, Marscher, Alan P., Matt, Giorgio, Mitsuishi, Ikuyuki, Mizuno, Tsunefumi, Muleri, Fabio, Ng, C. -Y., ODell, Stephen L., Omodei, Nicola, Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel L., Perri, Matteo, Pesce-Rollins, Melissa, Petrucci, Pierre-Olivier, Pilia, Maura, Possenti, Andrea, Puccetti, Simonetta, Ramsey, Brian D., Rankin, John, Ratheesh, Ajay, Romani, Roger W., Sgro, Carmelo, Slane, Patrick, Soffitta, Paolo, Spandre, Gloria, Tamagawa, Toru, Tavecchio, Fabrizio, Taverna, Roberto, Tawara, Yuzuru, Tennant, Allyn F., Thomas, Nicholas E., Tombesi, Francesco, Trois, Alessio, Turolla, Roberto, Vink, Jacco, Weisskopf, Martin C., Wu, Kinwah, Xie, Fei, Schulz, Norbert S., Chakrabarty, Deepto
We present measurements of the polarization of X-rays in the 2-8 keV band from the pulsar in the ultracompact low mass X-ray binary 4U1626-67 using data from the Imaging X-ray Polarimetry Explorer (IXPE). The 7.66 s pulsations were clearly detected t
Externí odkaz:
http://arxiv.org/abs/2210.03194
We present an analysis of \chandra/LETGS observations of the ultracompact X-ray binary (UCXB) 4U 1626$-$67, continuing our project to analyze the existing Chandra gratings data of this interesting source. The extremely low mass, hydrogen-depleted don
Externí odkaz:
http://arxiv.org/abs/2106.06558
Autor:
Marshall, Herman L., Heine, Sarah N. T., Garner, Alan, Gullikson, Eric M., Günther, H. Moritz, Leitz, Christopher, Masterson, Rebecca, Miller, Eric D., Zhang, William, Boissay-Malaquin, Rozenn, Caiazzo, Ilaria, Chakrabarty, Deepto, Davidson, Rosemary, Gallo, Luigi C., Heilmann, Ralf K., Heyl, Jeremy, Kara, Erin, Marscher, Alan, Schulz, Norbert S.
We describe a new implementation of a broad-band soft X-ray polarimeter, substantially based on a previous design. This implementation, the Pioneer Soft X-ray Polarimeter (PiSoX) is a SmallSat, designed for NASA's call for Astrophysics Pioneers, smal
Externí odkaz:
http://arxiv.org/abs/2012.02829