Results 71 to 80 of about 1,327,251 (363)

Reflection and Timing Study of the Transient Black Hole X-Ray Binary MAXI J1803-298 with NuSTAR

The Astrophysical Journal, 2023
The transient black hole X-ray binary MAXI J1803−298 was discovered on 2021 May 1, as it went into outburst from a quiescent state. As the source rose in flux it showed periodic absorption dips and fit the timing and spectral characteristics of a hard ...
Benjamin M. Coughenour, John A. Tomsick, Guglielmo Mastroserio, James F. Steiner, Riley M. T. Connors, Jiachen Jiang, Jeremy Hare, Aarran W. Shaw, Renee M. Ludlam, A. C. Fabian, Javier A. García, Joel B. Coley   +11 more
doaj   +1 more source

Chasing the identification of ASCA Galactic Objects (ChIcAGO): An X-ray survey of unidentified sources in the galactic plane. I : Source sample and initial results [PDF]

, 2013
We present the Chasing the Identification of ASCA Galactic Objects (ChIcAGO) survey, which is designed to identify the unknown X-ray sources discovered during the ASCA Galactic Plane Survey (AGPS).
Anderson, G.E., Benjamin, R.A., Brogan, C.L., Chakrabarty, D., Drake, Jeremy J., Drew, J.E., Farrell, S.A., Finley, J.P., Gaensler, B.M., Grindlay, J.E., Hong, J., Kaplan, D.L.A., Lazio, T.J.W.W., Lee, J.C., Mauerhan, J.C., Muno, M.P., Murray, Stephen S., Posselt, B., Slane, P.O., Steeghs, D.T.H., Van Kerkwijk, M.H.   +20 more
core   +3 more sources

Pulsars and X-Ray Sources [PDF]

Symposium - International Astronomical Union, 1973
We summarize some theoretical aspects of the X-ray emission from genuine pulsars and their relation to the more general problems of X-ray sources.
openaire   +2 more sources

KMT2A degradation is observed in decitabine‐responsive acute lymphoblastic leukemia cells

Molecular Oncology, EarlyView.
We demonstrate that decitabine (DEC) not only degrades the DNA methyltransferase DNMT1 but also the leukemic driver lysine methyltransferase KMT2A likely due to structural similarity of the DNA‐binding CXXC domains. DEC influences KMT2A downstream processes and synergizes with menin inhibitor revumenib (REV) to decrease leukemic cell proliferation, and
Luisa Brock, Lina Benzien, Sandra Lange, Maja Huehns, Alexandra Runge, Catrin Roolf, Anett Sekora, Gudrun Knuebel, Hugo Murua Escobar, Christian Junghanss, Anna Richter   +10 more
wiley   +1 more source

Hard X-ray emission from a young massive star-forming cluster [PDF]

, 2002
We report the detection of hard X-ray emission (>2 keV) from a number of point sources associated with the very young massive star-forming region IRAS 19410+2336.
Baraffe, Berghöfer, Beuther, Beuther, Beuther, Beuther, Casanova, Cesaroni, D'Antona, D'Antona, Ducati, Feigelson, Frerking, Garmire, Giacconi, Gregorio-Hetem, Grosso, Guilloteau, H. Beuther, Hamaguchi, Hanson, Hayashi, Hofner, Imanishi, J. Kerp, Kohno, Minier, Montmerle, P. Schilke, Palla, Palla, Preibisch, Ramond, Reid, Rieke, Ryter, Siess, Sridharan, T. Preibisch, T. Stanke, Tsuboi, Tsuboi, Tsuboi, Tsujimoto, Zinnecker   +44 more
core   +2 more sources

Periods in X-Ray Sources [PDF]

Highlights of Astronomy, 1977
Known periodicities in X-ray sources cover a wide range of values - a factor of 108or 109from the 33 mS of the Crab pulsar up to 35 days for the Her X-1 repeat of its up state, or even years if one believes in the not inconceivable idea that at least one “transient” (perhaps not yet even discovered!) is exhibiting some form of repetitive behaviour ...
openaire   +2 more sources

Plasma lipidomic and metabolomic profiles in high‐grade glioma patients before and after 72‐h presurgery water‐only fasting

Molecular Oncology, EarlyView.
Presurgery 72‐h fasting in GB patients leads to adaptations of plasma lipids and polar metabolites. Fasting reduces lysophosphatidylcholines and increases free fatty acids, shifts triglycerides toward long‐chain TGs and increases branched‐chain amino acids, alpha aminobutyric acid, and uric acid.
Iris Divé, Lisa Hahnefeld, Katharina J. Wenger, Donat Kögel, Joachim Steinbach, Gerd Geisslinger, Michael W. Ronellenfitsch, Irmgard Tegeder   +7 more
wiley   +1 more source

Decomposing the Spectrum of Ultraluminous X-Ray Pulsar NGC 300 ULX-1

The Astrophysical Journal, 2023
A phase-resolved analysis on the X-ray spectrum of ultraluminous X-ray pulsar (ULXP) NGC 300 ULX-1 is performed with data taken with XMM-Newton and NuSTAR on 2016 December 16. In addition to the classical phase-restricting analysis, a method developed in
Shogo B. Kobayashi, Hirofumi Noda, Teruaki Enoto, Tomohisa Kawashima, Akihiro Inoue, Ken Ohsuga   +5 more
doaj   +1 more source

X-ray and Optical Study of Low Core Density Globular Clusters NGC6144 and E3 [PDF]

, 2009
We report on the Chandra X-ray Observatory and Hubble Space Telescope observation of two low core density globular clusters, NGC6144 and E3. By comparing the number of X-ray sources inside the half-mass radius to those outside, we found 6 X-ray sources ...
Albert K. H. Kong, Alcaino, Bassa, Cees Bassa, Cool, Cool, David Pooley, Davies, Frank Verbunt, Freeman, Giacconi, Green, Grindlay, Grindlay, Heinke, Heinke, Hills, Kong, Lu, Pooley, Pooley, Pooley, Pryor, Sarajedini, Scott F. Anderson, Shih-Hao Lan, Verbunt, Verbunt, Verbunt, Verbunt, Walter H. G. Lewin, Wijnands   +31 more
core   +2 more sources

Galactic Centre X‐ray Sources [PDF]

AIP Conference Proceedings, 2007
4 pages, 3 figures; Poster to appear in AIP Conf. Proc.: `The Multicoloured Landscape of Compact Objects and their Explosive Origins'; Cefalu, Sicily, 2006 June 11 ...
Gosling, A, Bandyopadhyay, R, Blundell, K   +2 more
openaire   +4 more sources