Results 31 to 40 of about 2,330,942 (208)

Circumgalactic Medium on the Largest Scales: Detecting X-Ray Absorption Lines with Large-area Microcalorimeters

The Astrophysical Journal, 2023
The circumgalactic medium (CGM) plays a crucial role in galaxy evolution as it fuels star formation, retains metals ejected from the galaxies, and hosts gas flows in and out of galaxies.
Ákos Bogdán, Ildar Khabibullin, Orsolya E. Kovács, Gerrit Schellenberger, John ZuHone, Joseph N. Burchett, Klaus Dolag, Eugene Churazov, William R. Forman, Christine Jones, Caroline Kilbourne, Ralph P. Kraft, Erwin Lau, Maxim Markevitch, Dan McCammon, Daisuke Nagai, Dylan Nelson, Anna Ogorzalek, Benjamin D. Oppenheimer, Arnab Sarkar, Yuanyuan Su, Nhut Truong, Sylvain Veilleux, Stephan Vladutescu-Zopp, Irina Zhuravleva   +24 more
doaj   +1 more source

An Overview of the Performance and Scientific Results from the Chandra X‐Ray Observatory [PDF]

, 2001
The Chandra X‐Ray Observatory (CXO), the X‐ray component of NASA’s Great Observatories, was launched on 1999 July 23 by the space shuttle Columbia. After satellite systems activation, the first X‐rays focused by the telescope were observed on 1999 August
M. Weisskopf, B. Brinkman, C. Canizares, G. Garmire, S. Murray, L. V. Speybroeck   +5 more
semanticscholar   +1 more source

NinjaSat: Astronomical X-ray CubeSat observatory

Publications of the Astronomical Society of Japan
Abstract NinjaSat is an X-ray CubeSat designed for agile, long-term continuous observations of bright X-ray sources, with the size of 6U ($112.7\times 237.1\times 340.5$ mm3) and a mass of 8 kg. NinjaSat is capable of pointing at X-ray sources with an accuracy of less than $0.^{\!\!\!\circ }1$ ($2\sigma$ confidence level) with three-axis
Toru Tamagawa, Teruaki Enoto, Takao Kitaguchi, Wataru Iwakiri, Yo Kato, Masaki Numazawa, Tatehiro Mihara, Tomoshi Takeda, Naoyuki Ota, Sota Watanabe, Amira Aoyama, Satoko Iwata, Takuya Takahashi, Kaede Yamasaki, Chin-Ping Hu, Hiromitsu Takahashi, Yuto Yoshida, Hiroki Sato, Shoki Hayashi, Yuanhui Zhou, Keisuke Uchiyama, Arata Jujo, Hirokazu Odaka, Tsubasa Tamba, Kentaro Taniguchi   +24 more
openaire   +3 more sources

LOFT: Large Observatory For X-Ray Timing [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractHigh-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, black-hole masses and spins, and the equation of state of ultra-dense matter. LOFT, the Large Observatory for Xray Timing, is specifically designed to study the very rapid X-ray flux and spectral variability that directly probe the motion ...
Mignani, R. P., Zane, S., Walton, D., Kennedy, T., Winter, B., Smith, P., Cole, R., Kataria, D., Smith, A.   +8 more
openaire   +2 more sources

Discovery of a Be/X-ray pulsar binary and associated supernova remnant in the Wing of the SMC [PDF]

, 2011
We report on a new Be/X-ray pulsar binary located in the Wing of the Small Magellanic Cloud (SMC). The strong pulsed X-ray source was discovered with the Chandra and XMM-Newton X-ray observatories.
V. H'enault-Brunet, L. Oskinova, M. Guerrero, W. Sun, Y. Chu, C. Evans, J. Gallagher, R. Gruendl, J. Reyes-Iturbide   +8 more
semanticscholar   +1 more source

The Large Observatory for X-ray Timing (LOFT) [PDF]

Experimental Astronomy, 2011
High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultradense matter and to black hole masses and spins. A 10 m(2)-class instrument in combination with good spectral resolution is required to exploit the relevant diagnostics and answer two of the fundamental questions of
M. Feroci, J. W. Herder, E. Bozzo, D. Barret, S. Brandt, M. Hernanz, Michiel van der Klis, M. Pohl, A. Santangelo, Luigi Stella, A. Watts, J. Wilms, S. Zane, M. Ahangarianabhari, A. Alpar, D. Altamirano, L. Alvarez, L. Amati, C. Amoros, N. Anderson, A. Antonelli, A. Argan, R. Artigue, P. Azzarello, G. Baldazzi, S. Balman, Marco Barbera, Tomaso M. Belloni, BERTUCCIO, GIUSEPPE, S. Bianchi, A. Bianchini, P. Bodin, Jean Marc Bonnet Bidaud, S. Boutloukos, João Braga, E. Brown, N. Bucciantini, Luciano Burderi, M. Bursa, C. Budtz Jørgensen, E. Cackett, F. Cadoux, P. Cais, G. A. Caliandro, R. Campana, S. Campana, P. Casella, D. Chakrabarty, J. Chenevez, J. Coker, R. Cole, A. Collura, T. Courvoisier, A. Cros, A. Cumming, G. Cusumano, A. D'Ai, V. D'Elia, E. Del Monte, D. de Martino, A. De Rosa, S. Di Cosimo, S. Diebold, T. Di Salvo, I. Donnarumma, A. Drago, M. Durant, D. Emmanoulopoulos, Y. Evangelista, A. Fabian, M. Falanga, Y. Favre, C. Feldman, C. Ferrigno, M. Finger, G. W. Fraser, F. Fuschino, D. K. Galloway, José Luis Gálvez Sanchez, E. García Berro, B. Gendre, S. Gezari, A. B. Giles, M. Gilfanov, P. Giommi, G. Giovannini, M. Giroletti, A. Goldwurm, D. Götz, C. Gouiffes, M. Grassi, P. Groot, C. Guidorzi, D. Haas, F. Hansen, D. H. Hartmann, C. A. Haswell, A. Heger, J. Homan, A. Hornstrup, R. Hudec, J. Huovelin, A. Ingram, J. J. M. In't Zand, J. Isern, G. Israel, L. Izzo, P. Jonker, P. Kaaret, V. Karas, D. Karelin, D. Kataria, L. Keek, T. Kennedy, D. Klochkov, W. Kluzniak, K. Kokkotas, S. Korpela, C. Kouveliotou, I. Kreykenbohm, L. M. Kuiper, I. Kuvvetli, C. Labanti, D. Lai, F. K. Lamb, F. Lebrun, D. Lin, D. Linder, G. Lodato, F. Longo, N. Lund, T. J. Maccarone, D. Macera, D. Maier, P. Malcovati, V. Mangano, A. Manousakis, Mario Marisaldi, A. Markowitz, A. Martindale, G. Matt, I. M. McHardy, A. Melatos, Mariano Méndez, S. Migliari, R. Mignani, M. C. Miller, J. M. Miller, T. Mineo, G. Miniutti, S. Morsink, C. Motch, S. Motta, M. Mouchet, F. Muleri, A. Norton, M. Nowak, P. O'Brien, M. Orienti, M. Orio, M. Orlandini, P. Orleanski, J. P. Osborne, R. Osten, F. Ozel, L. Pacciani, A. Papitto, B. Paul, E. Perinati, V. Petracek, J. Portell, J. Poutanen, D. Psaltis, D. Rambaud, G. Ramsay, M. Rapisarda, A. Rachevski, P. Ray, N. Rea, S. Reddy, P. Reig, Manuel Reina, R. Remillard, C. Reynolds, P. Rodríguez Gil, J. Rodriguez, P. Romano, E. M. Rossi, F. Ryde, L. Sabau Graziati, G. Sala, Reuben Salvaterra, R. Sanna, Stéphane Schanne, J. Schee, Christian Schmid, A. Schwenk, A. Schwope, J. Y. Seyler, A. Shearer, P. J. Smith, P. Soffitta, N. Stergioulas, C. Tenzer, G. Török, D. F. Torres, A. Vacchi, S. Vaughan, S. Vercellone, R. Wawrzaszek, L. Zampieri, A. Zdziarski   +211 more
openaire   +11 more sources

Predicted x-ray backgrounds for the International X-ray Observatory [PDF]

SPIE Proceedings, 2010
The background that will be observed by IXO's X-ray detectors naturally separates into two components: (1) a Cosmic X-ray Background (CXB), primarily due to unresolved point sources at high energies (E>2 keV), along with Galactic component(s) at lower energies that are generated in the disk and halo as well as the Local Bubble and charge exchange in ...
Bautz, Marshall W., Smith, R. K., Bookbinder, J., Garcia, M. R., Guainazzi, M., Kilbourne, C. A.   +5 more
openaire   +2 more sources

The High-energy Spectrum of the Young Planet Host V1298 Tau

The Astronomical Journal, 2023
V1298 Tau is a young pre-main-sequence star hosting four known exoplanets that are prime targets for transmission spectroscopy with current-generation instruments. This work pieces together observations from the NICER X-ray telescope, the Space Telescope
Girish M. Duvvuri, P. Wilson Cauley, Fernando Cruz Aguirre, Roy Kilgard, Kevin France, Zachory K. Berta-Thompson, J. Sebastian Pineda   +6 more
doaj   +1 more source

ON NEUTRAL ABSORPTION AND SPECTRAL EVOLUTION IN X-RAY BINARIES [PDF]

, 2009
Current X-ray observatories make it possible to follow the evolution of transient and variable X-ray binaries across a broad range in luminosity and source behavior.
J. Miller, E. Cackett, R. C. R. U. O. Michigan, U. Cambridge   +3 more
semanticscholar   +1 more source

X-RAY SPECTRAL PROPERTIES OF THE ISOLATED AGNs: NGC 1050, NGC 2989, ESO 317-038, ESO 438-009

Odessa Astronomical Publications, 2016
We have analyzed the spectral data obtained by XMM-Newton, Swift, Chandra, and INTEGRAL space observatories for several isolated AGNs from 2MIG catalogue, for which the available X-ray data were accessed.
I. B. Vavilova, A. A. Vasylenko, Iu. V. Babyk, N. G. Pulatova   +3 more
doaj   +1 more source