Results 111 to 120 of about 9,803,268 (311)

Hubble Constant Measurement from Quasiperiodic Eruptions as Electromagnetic Counterparts to Extreme Mass Ratio Inspirals

The Astrophysical Journal
Gravitational waves (GWs) accompanied by electromagnetic counterparts, known as bright sirens, provide a novel methodology to measure the Hubble constant ( H _0 ).
Yejing Zhan, Di Wang, Shuang-Xi Yi, Fa-Yin Wang   +3 more
doaj   +1 more source

Dual-Energy Processing of X-ray Images of Beryl in Muscovite Obtained Using Pulsed X-ray Sources. [PDF]

Sensors (Basel), 2023
Komarskiy A, Korzhenevskiy S, Ponomarev A, Chepusov A.   +3 more
europepmc   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

X-ray spectra of discrete sources in Cygnus [PDF]

, 1971
X ray spectra of discrete sources in Cygnus data from rocket-borne proportional ...
Bleach, R. D., Serlemitsos, P. J., Boldt, E. A., Holt, S. S., Schwartz, D. A.   +4 more
core  

Diagnosing and mapping pulmonary emphysema on X-ray projection images [PDF]

, 2013
To assess whether grating-based X-ray dark-field imaging can increase the sensitivity of X-ray projection images in the diagnosis of pulmonary emphysema and allow for a more accurate assessment of emphysema distribution.
Pfeiffer, Franz, Meinel, Felix G., Schleede, Simone, Herzen, Julia, Ruth, Ronald, Nikolaou, Konstantin, Bohla, Alexander, Bech, Martin, Yildirim, Ali Ö., Reiser, Maximilian F., Auweter, Sigrid, Bamberg, Fabian, Schwab, Felix, Loewen, Rod, Gifford, Martin, Achterhold, Klaus, Eickelberg, Oliver   +16 more
core   +1 more source

Discovery of a Candidate 2 keV Cyclotron Resonance Scattering Feature in the HLX NGC 3583 X-1

The Astrophysical Journal
We present a broadband X-ray study of the transient hyperluminous X-ray source (HLX), 2SXPS J111416.1+481833, in the galaxy NGC 3583, using archival XMM-Newton, NuSTAR, and Chandra data, and long-term Swift X-ray Telescope monitoring.
Kiran M. Jayasurya, Aman Upadhyay, Vikram Rana   +2 more
doaj   +1 more source

Simulation study of a novel small animal FLASH irradiator (SAFI) with integrated inverse-geometry CT based on circularly distributed kV X-ray sources. [PDF]

Sci Rep, 2023
Tan Y, Zhou S, Haefner J, Chen Q, Mazur TR, Darafsheh A, Zhang T.   +6 more
europepmc   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

X-ray spectral analysis of C-COSMOS sources

, 2010
We present a detailed X-ray spectral analysis of 401 bright sources in the Chandra-COSMOS catalogue with >80 net counts in the 0.5-7 keV ...
F. Fiore, G. Lanzuisi, C. Vignali, V. Mainieri, L. Angelini, M. Elvis, A. Comastri, A. Fruscione, F. Civano, T. Aldcroft, M. Cappi, Elvis M., Mainieri V., VIGNALI, CRISTIAN, Fruscione A., LANZUISI, GIORGIO, Fiore F., Aldcroft T., Civano F.   +18 more
core   +1 more source

X-Ray Polarized View of the Accretion Geometry in the X-Ray Binary Circinus X-1

The Astrophysical Journal Letters
Cir X-1 is a neutron star X-ray binary characterized by strong variations in flux during its eccentric ∼16.6 day orbit. There are also strong variations in the spectral state, and it has historically shown both atoll and Z state properties.
John Rankin, Fabio La Monaca, Alessandro Di Marco, Juri Poutanen, Anna Bobrikova, Vadim Kravtsov, Fabio Muleri, Maura Pilia, Alexandra Veledina, Rob Fender, Philip Kaaret, Dawoon E. Kim, Andrea Marinucci, Herman L. Marshall, Alessandro Papitto, Allyn F. Tennant, Sergey S. Tsygankov, Martin C. Weisskopf, Kinwah Wu, Silvia Zane, Filippo Ambrosino, Ruben Farinelli, Andrea Gnarini, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Alan P. Marscher, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Chi-Yung Ng, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Paolo Soffitta, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Roberto Turolla, Jacco Vink, Fei Xie   +103 more
doaj   +1 more source