Results 71 to 80 of about 77,058 (202)

Development and Performance of Kyoto's X-ray Astronomical SOI pixel (SOIPIX) sensor

, 2014
We have been developing monolithic active pixel sensors, known as Kyoto's X-ray SOIPIXs, based on the CMOS SOI (silicon-on-insulator) technology for next-generation X-ray astronomy satellites.
Arai, Yasuo, Hatsui, Takaki, Kagawa, Keiichiro, Kamehama, Hiroki, Kameshima, Takashi, Kawahito, Shoji, Kohmura, Takayoshi, Kohmura, Yoshiki, Matsumura, Hideaki, Mori, Koji, Nakashima, Shinya, Nishioka, Yusuke, Ozaki, Kyosuke, Shrestha, Sumeet, Takeda, Ayaki, Takei, Dai, Takenaka, Ryota, Tanaka, Takaaki, Tsuru, Takeshi G., Wagai, Tatsuya, Yasutomi, Keita   +20 more
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Overview of EXIST mission science and implementation

, 2010
The Energetic X-ray Imaging Survey Telescope (EXIST) is designed to i) use the birth of stellar mass black holes, as revealed by cosmic Gamma-Ray Bursts (GRBs), as probes of the very first stars and galaxies to exist in the Universe.
Allen, B., Barthelmy, S., Bloom, J., Coppi, P., Della Ceca, R., Fabbiano, G., Fishman, G., Gehrels, N., Grindlay, J., Hong, J., Kutyrev, A., Moseley, H., Natalucci, L., Ramsey, B., Soderberg, A., Tagliaferri, G., Ubertini, P.   +16 more
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Precision Manufacturing in China of Replication Mandrels for Ni-Based Monolithic Wolter-I X-ray Mirror Mandrels

Aerospace
The X-ray satellite “Einstein Probe” of the Chinese Academy of Sciences (CAS) was successfully launched on 9 January 2024 at 15:03 Beijing Time from the Xichang Satellite Launch Center in China with a “Long March-2C” rocket.
Jiadai Xue, Bo Wang, Qiuyan Liao, Kaiji Wu, Yutao Liu, Yangong Wu, Wentao Chen, Zheng Qiao, Yuan Jin, Fei Ding, Dianlong Wang, Langping Wang, Guo Li, Yanji Yang, Yong Chen   +14 more
doaj   +1 more source

High-energy emission as a test of the prior emission model for gamma-ray burst afterglows

, 2009
We study high-energy gamma-ray afterglow emission from gamma-ray bursts (GRBs) in the prior emission model, which is proposed to explain the plateau phase of the X-ray afterglow.
Abdo, Abdo, Abdo, Abdo, Aharonian, Aharonian, Albert, Baring, Beloborodov, Briggs, Carmona, Dermer, Eichler, Fan, Fan, Gao, Genet, Ghisellini, Gou, Guetta, Gupta, Hurley, Ioka, Kenji Toma, Kneiske, Kohta Murase, Kumar, Kunihito Ioka, Liang, Liang, Liang, Lithwick, Murase, Murase, Murase, Murase, Mészáros, Nakar, Nousek, O'Brien, Panaitescu, Peér, Razzaque, Rhoads, Ryo Yamazaki, Sari, Sari, Shigehiro Nagataki, Toma, Toma, Uhm, Vestrand, Wang, Wei, Yamazaki, Yu, Zhang, Zhang, Zhang   +58 more
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On the relation between supersoft X-ray sources and VY Scl stars: The cases of V504 Cen and VY Scl

, 2009
We summarize our optical monitoring program of VY Scl stars with the SMARTS telescopes, and triggered X-ray as well as optical observations after/during state transitions of V504 Cen and VY Scl.Comment: 4 pages, Proc. of workshop "SuperSoft X-ray Sources
Dickey, Greiner, Greiner, Greiner, Greiner, Greiner, Groot, Hameury, Hoard, Honeycutt, Honeycutt, Kato, Kilkenny, Knigge, Knigge, Leach, Livio, Reinsch, Southwell, van den Heuvel, Wu   +20 more
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SAUNAS. I. Searching for Low Surface Brightness X-Ray Emission with Chandra/ACIS

The Astrophysical Journal
We present Selective Amplification of Ultra Noisy Astronomical Signal ( SAUNAS ), a pipeline designed for detecting diffuse X-ray emission in the data obtained with the Advanced CCD Imaging Spectrometer (ACIS) of the Chandra X-ray Observatory.
Alejandro S. Borlaff, Pamela M. Marcum, Mehmet Alpaslan, Pasquale Temi, Nushkia Chamba, Drew S. Chojnowski, Michael N. Fanelli, Anton M. Koekemoer, Seppo Laine, Enrique Lopez-Rodriguez, Aneta Siemiginowska   +10 more
doaj   +1 more source

Fabrication of X-ray telescopes for sounding rocket flights [PDF]

Two X-ray telescopes and two detector systems were fabricated, and one of the telescopes (15 in. diameter, Wolter type I telescope) was flown on two sounding rocket flights.

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Transient X-ray Sources in the Magellanic-type Galaxy NGC 4449

, 2016
We report the identification of seven transient X-ray sources in the nearby Magellanic-type galaxy NGC 4449 using the archival multi-epoch X-ray observations conducted with {\it Chandra}, {\it XMM-Newton} and {\it Swift} telescopes over year 2001--2013 ...
Jithesh, V., Wang, Zhongxiang
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Search for the Optical Counterpart of the Vela Pulsar X-ray Nebula

, 2003
Observations of the Vela pulsar region with the Chandra X-ray observatory have revealed the fine structure of its synchrotron pulsar-wind nebula (PWN), which showed an overall similarity with the Crab PWN. However, contrary to the Crab, no firm detection
A. De Luca, G. G. Pavlov, Markwardt C. B., Nasuti F. P., O. Kargaltsev, P. A. Caraveo, Pavlov G. G., R. P. Mignani, S. Zaggia, W. Becker   +9 more
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Optics for Nano-Satellite X-Ray Monitor

Open Astronomy, 2015
The Schmidt lobster eye design for a grazing incidence X-ray optics provides a field of view of the order of many degrees, for this reason it can be a convenient approach for the construction of space X-ray monitors.
Tichý Vladimír, Burrows David N., Prieskorn Zachary, Hudec René   +3 more
doaj   +1 more source