Results 31 to 40 of about 29,884 (299)

On the x-ray outbursts of transient anomalous x-ray pulsars and soft gamma-ray repeaters [PDF]

, 2012
We show that the X-ray outburst light curves of four transient anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), namely, XTE J1810–197, SGR 0501+4516, SGR 1627–41, and CXOU J164710.2–455216, can be produced by the fallback disk model ...
Çalışkan, Şirin, Ertan, Ünal
core   +1 more source

X-ray bursts from the galactic X-ray transient source GRS 1915+105 [PDF]

Advances in Space Research, 2001
We have analyzed publicly available RXTE/PCAs archival data of GRS 1915+105 during its burst/flaring state. The burst cycle ranges from 30 to 1300 s. These bursts are different from the type I and type II classical bursts seen in Low Mass X-ray Binaries (LMXBs) in terms of their temporal and spectral properties.
Yadav, J. S., Rao, A. R.
openaire   +2 more sources

Discovery of a New X-Ray Transient Source in the Scutum Region with Suzaku [PDF]

Publications of the Astronomical Society of Japan, 2007
During an observation of the Galactic plane in the Scutum region with the Suzaku satellite, we discovered a new X-ray transient source, designated Suzaku J1844$-$0404. Compared with previous Chandra observations of the same field, four Chandra X-ray sources exist within the current positional uncertainty of Suzaku J1844$-$0404. A firm identification is
Yamauchi, Shigeo, Ebisawa, Ken, Bamba, Aya, Ishida, Manabu, Iwasawa, Kazushi, Tanaka, Yasuo, Kokubun, Motohide, Koyama, Katsuji, Takahashi, Hiromitsu, Tsuboi, Yohko   +9 more
openaire   +3 more sources

Discovery of a 205.89 Hz accreting millisecond x-ray pulsar in the globular cluster NGC 6440 [PDF]

, 2010
We report on the discovery of the second accreting millisecond X-ray pulsar (AMXP) in the globular cluster NGC 6440. Pulsations with a frequency of 205.89 Hz were detected with RXTE on 2009 August 30, October 1 and October 28, during the decays of 4 day ...
Strohmayer, T.E., Linares, M., Swank, J. H., Wijnands, R., Heinke, C. O., Markwardt, C., D. Altamirano, J. H. Swank, van der Klis, M., R. Wijn, C. O. Heinke, C. Markwardt, Swank, J.H., M. Van Der Klis, Heinke, C.O., Patruno, A., M. Linares, Strohmayer, T. E., A. Patruno, Altamirano, D., T. E. Strohmayer   +20 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

The properties of discrete X-ray sources in star-forming galaxies [PDF]

, 2012
Observations of starburst galaxies have revealed a large number of point-like X-ray sources located within these systems, including active galactic nuclei (AGN), X-ray binaries (XRBs), and utraluminous X-ray sources (ULXs).
JACKSON, FLOYD,EMMANUEL
core  

Fast X-Ray Transients in NuSTAR Data

The Astrophysical Journal
Fast X-ray transients (FXTs) are flashes of X-rays that last for a few hundreds of seconds to a few hours. An enigmatic population of these transients that did not have a clear origin has been known for several decades, mostly found serendipitously in ...
Murray Brightman, Joahan Castañeda Jaimes, Daniel Stern, Brian Grefenstette   +3 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

The very soft X-ray transient H1853 + 60 [PDF]

, 1981
The increased sensitivity, sky coverage and spectral range of X-ray observatories have revealed a wide range of transient phenomena. The 'classical' X-ray transients flare rapidly, sometimes increasing by more than an order of magnitude in X-ray flux in ...
Robert A. Stern, Guenter R. Riegler, Riegler, Guenter R., Agrawal, Prahlad C., Prahlad C. Agrawal, Stern, Robert A.   +5 more
core   +1 more source

The Radio Flare and Multiwavelength Afterglow of the Short GRB 231117A: Energy Injection from a Violent Shell Collision

The Astrophysical Journal
We present the early radio detection and multiwavelength modeling of the short gamma-ray burst (GRB) 231117A at redshift z = 0.257. The Australia Telescope Compact Array automatically triggered a 9 hr observation of GRB 231117A at 5.5 and 9 GHz following
G. E. Anderson, G. P. Lamb, B. P. Gompertz, L. Rhodes, A. Martin-Carrillo, A. J. van der Horst, A. Rowlinson, M. E. Bell, T.-W. Chen, H. M. Fausey, M. Ferro, P. J. Hancock, S. R. Oates, S. Schulze, R. L. C. Starling, S. Yang, K. Ackley, J. P. Anderson, A. Andersson, J. F. Agüí Fernández, R. Brivio, E. Burns, K. C. Chambers, T. de Boer, V. D’Elia, M. De Pasquale, A. de Ugarte Postigo, Dimple, R. Fender, M. D. Fulton, H. Gao, J. H. Gillanders, D. A. Green, M. Gromadzki, A. Gulati, D. H. Hartmann, M. E. Huber, N. J. Klingler, N. P. M. Kuin, J. K. Leung, A. J. Levan, C.-C. Lin, E. Magnier, D. B. Malesani, P. Minguez, K. P. Mooley, T. Mukherjee, M. Nicholl, P. T. O’Brien, G. Pugliese, A. Rossi, S. D. Ryder, B. Sbarufatti, B. Schneider, F. Schüssler, S. J. Smartt, K. W. Smith, S. Srivastav, D. Steeghs, N. R. Tanvir, C. C. Thoene, S. D. Vergani, R. J. Wainscoat, Z.-N. Wang, R. A. M. J. Wijers, D. Williams-Baldwin, I. Worssam, T. Zafar   +67 more
doaj   +1 more source