Results 21 to 30 of about 807,144 (296)

The fading of two transient ultraluminous x-ray sources to below the stellar mass Eddington limit [PDF]

, 2013
We report new detections of the two transient ultraluminous X-ray sources (ULXs) in NGC 5128 from an ongoing series of Chandra observations. Both sources have previously been observed L (2-3) × ∼10 erg s, at the lower end of the ULX luminosity range. The
Birkinshaw, M., Brassington, Nicola, Burke, M.J., Forman, W.R., Hardcastle, M.J., Jones, C., Kraft, R.P., Maccarone, T. J., Murray, S.S., Raychaudhury, S., Sivakoff, G.R., Soria, R., Worrall, D.M.   +12 more
core   +3 more sources

Photohadronic neutrinos from transients in astrophysical sources

Physical Review D, 1998
Significant corrections and changes in presentation, no changes in the result. Symbol table added.
Rachen, Jorg P., Meszaros, P.
openaire   +2 more sources

Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data

The Astrophysical Journal, 2023
Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape.
Adrian T. Sutinjo, Danica R. Scott, Clancy W. James, Marcin Glowacki, Keith W. Bannister, Hyerin Cho, Cherie K. Day, Adam T. Deller, Timothy P. Perrett, Ryan M. Shannon   +9 more
doaj   +1 more source

Suzaku Observations of Four Heavily Absorbed HMXBs

, 2008
We report on Suzaku observations of four unidentified sources from the INTEGRAL and Swift BAT Galactic plane surveys. All the sources have a large neutral hydrogen column density and are likely members of an emerging class of heavily absorbed high mass X-
Abt, Bird, Bird, C. B. Markwardt, Chaty, D. C. Morris, Filliatre, Halpern, J. Tueller, K. S. Dhuga, Kudryavtsev, Levine, Markowitz, Markwardt, Markwardt, Negueruela, Negueruela, Negueruela, Patel, Patel, R. F. Mushotzky, R. K. Smith, Romano, Savonije, Sguera, Smith, T. R. Kallman, Tomsick, Tomsick, Tueller, Zurita Heras   +30 more
core   +1 more source

A Dictionary Approach to Identifying Transient RFI

, 2017
As radio telescopes become more sensitive, the damaging effects of radio frequency interference (RFI) become more apparent. Near radio telescope arrays, RFI sources are often easily removed or replaced; the challenge lies in identifying them.
Czech, Daniel, Inggs, Michael, Mishra, Amit   +2 more
core   +1 more source

An unusually brilliant transient in the galaxy Messier 85 [PDF]

, 2007
Historically, variable and transient sources have both surprised astronomers and provided new views of the heavens. Here we report the discovery of an optical transient in the outskirts of the lenticular galaxy Messier 85 in the Virgo Cluster.
Capak, P. L., Cenko, S. B., Egami, E., Filippenko, A. V., Fox, D. B., Gal-Yam, A., Kartaltepe, J., Kulkarni, S. R., Li, W., Moon, D. S., Ofek, E. O., Rau, A., Sanders, D. B., Soderberg, A. M.   +13 more
core   +2 more sources

Transient X-ray source A1118—61 [PDF]

Nature, 1976
THE transient X-ray source Ariel 1118—61 was discovered late in 1974 (refs 1, 2). It has been suggested3 that this source may be associated with the long period Mira-type variable RS Cen, which is located within the error box for the X-ray source.
P. J. N. DAVISON, P. W. SANFORD
openaire   +1 more source

Simultaneous Multiwavelength Observations of the Repeating Fast Radio Burst FRB 20190520B with Swift and FAST

The Astrophysical Journal
Among several dozen known repeating fast radio bursts, those precisely localized offer the best opportunities to explore their multiwavelength counterparts, which are key to uncovering their origins.
Zhen Yan, Wenfei Yu, Kim L. Page, Jie Lin, Di Li, Chenhui Niu, Casey Law, Bing Zhang, Shami Chatterjee, Xian Zhang, Reshma Anna-Thomas   +10 more
doaj   +1 more source

First XMM-Newton Observations of the Globular Cluster M22 [PDF]

, 2001
We have examined preliminary data of the globular cluster, M22, from the EPIC MOS detectors on board XMM-Newton. We have detected 27 X-ray sources within the centre of the field of view, 24 of which are new detections. Three sources were found within the
Asai, Asai, B. Gendre, Bahcall, Briel, Campana, D'Amico, D. Barret, Di Stefano, Djorgovski, Djorgovski, Fox, Grindlay, Grindlay, Harris, Hasinger, Hertz, Hertz, Johnston, Johnston, Kulkarni, Lightman, N. A. Webb, Narayan, Peterson, Piotto, Ramsay, Richman, Ritter, Thorsett, Turner, van der Klis, Verbunt, Verbunt, Verbunt, Verbunt, Verbunt, Zwart   +37 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source