Results 81 to 90 of about 4,484,191 (405)

High resolution X-ray spectrum of the accreting binary X-ray pulsar GX 1+4

, 2005
We present here high resolution X-ray spectrum of the accreting binary X-ray pulsar GX 1+4 obtained with the High Energy Transmission Grating (HETG) instrument of the Chandra X-ray Observatory. This was supplemented by a simultaneous observation with the
Dotani, Tadayasu, Mukherjee, U., Nagase, Fumiaki, Naik, S., Paul, B., Paul, B., 堂谷, 忠靖, 長瀬, 文昭   +7 more
core   +2 more sources

The complex radio and X-ray structure in the nuclear regions of the active galaxy NGC1365 [PDF]

, 1999
We present a multiwavelength analysis of the prominent active galaxy NGC1365, in particular looking at the radio and X-ray properties of the central regions of the galaxy. We analyse ROSAT observations of NGC1365, and discuss recent ASCA results.
Alloin, Antonelli, Awaki, Brandt, Clocchiatti, Condon, Condon, Conti, Contini, David, Duncan A. Forbes, Fabbiano, Fabbiano, Fabian, Forbes, Forbes, Ghosh, Helou, Hjelm, Hunter, Ian R. Stevens, Irwin, Iwasawa, Iyomoto, Komossa, Kristen, Lamer, Maccacaro, Maiolino, Marcaide, Marshall, Mas-Hesse, Matt, Moran, Muxlow, Nagase, Narayan, Phillips, Predehl, Ptak, Ray P. Norris, Read, Saikia, Sandage, Sandqvist, Schlegel, Shields, Simpson, Stark, Stevens, Strickland, Strickland, Telesco, Turner, Turner, Ueno, van Dyk, Véron, Ward, Wilson, Wunderlich, Xue   +61 more
core   +3 more sources

An efficient strategy for producing RNA‐free Nucleocapsid protein of SARS‐CoV‐2 for biochemical and structural investigations

FEBS Open Bio, EarlyView.
Cleavable N‐terminal Thioredoxin fusion enabled soluble expression and purification of otherwise insoluble SARS‐CoV‐2 Nucleocapsid (N) protein. A four‐step purification strategy yielded highly homogeneous, RNA‐free N protein. Binding assays showed high RNA affinity (Kd ~ 28 nm). The study will facilitate high‐resolution structural studies of N protein,
Shweta Singh, Gagan D. Gupta
wiley   +1 more source

Structure of pellet cloud emission and relation with the local ablation rate

Nuclear Fusion
The experimental reproduction of the conditions of pellet injection expected in future large devices being not possible in present day machines, it is mandatory to validate as thoroughly as possible the available ablation models.
B. Pégourié, E. Geulin, M. Goto, A. Matsuyama, G. Motojima, R. Sakamoto   +5 more
doaj   +1 more source

An evolving GeV spectrum from prompt to afterglow: the case of GRB 160509A [PDF]

, 2017
We present the high-energy emission properties of GRB 160509A, from its prompt mission to late afterglow phase. GRB 160509A contains two emission episodes: 0-40s and 280-420s after the burst onset (t0). The relatively high fluence of GRB 160509A allows us to establish an evolving spectrum above 100 MeV.
arxiv   +1 more source

Multiband Emission from Pulsar Wind Nebulae: A Possible Injection Spectrum [PDF]

, 2010
A recent research shows that particles with a spectrum of a relativistic Maxwellian plus a high-energy tail can be accelerated by relativistic collisionless shocks.
Fang, J., Zhang, L.
core   +1 more source

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

Wind Driving Triboluminescence Technology: A Physical Agriculture Method of Pest Insects Control without Pesticides†

E3S Web of Conferences, 2018
Some of triboluminescence materials have the property of shortwave light emission, which is possible to make them being used as the light resource of pest-insects phototaxis trapping.
Qiang ZHOU, Jian-chao Wang, Zhi-shen Li
doaj   +1 more source

Luminous [O III] and [N II] from Tidally Disrupted Horizontal Branch Stars

, 2012
We model the emission lines generated in the photoionised debris of a tidally disrupted horizontal branch star. We find that at late times, the brightest optical emission lines are [N II] \lambda\lambda 6548,6583 and [O III] \lambda\lambda 4959,5007 ...
Barnard, Baumgardt, Behr, Belczynski, Bogdanović, Brassington, Brodie, Charbonnel, Charpinet, Clausen, Colbert, Croton, Dalessandro, Davies, Dorman, Dotter, Drew Clausen, Ferland, Frank, Gratton, Gratton, Heggie, Hills, Irwin, Ivanova, Jimmy A. Irwin, Kundu, Lacy, Lee, Maccarone, Maccarone, Maccarone, Maccarone, Maccarone, Michael Eracleous, Paxton, Peacock, Porter, Ramirez-Ruiz, Rees, Rey, Ripamonti, Roos, Sandage, Sarazin, Searle, Shih, Sigurdsson, Sigurdsson, Sigurdsson, Steinn Sigurdsson, Strubbe, Strubbe, Tautvaišienė, van den Bergh, van Grootel, Zepf   +56 more
core   +1 more source

On the Integrated Spectrum of the X-ray Binaries and the Origin of Soft X-ray Emission from the Bulge of M31 [PDF]

, 2000
Using ROSAT PSPC data, we have performed several tests aimed at understanding the origin of the soft X-ray spectral component detected from the bulge of M31.
Aschenbach B., Konstantin N. Borozdin, Supper R., Trinchieri G., William C. Priedhorsky   +4 more
core   +4 more sources