Results 91 to 100 of about 287,620 (343)
Near-infrared spectroscopy of 20 new Chandra sources in the Norma Arm [PDF]
We report on CTIO/NEWFIRM and CTIO/OSIRIS photometric and spectroscopic observations of 20 new X-ray (0.5-10 keV) emitters discovered in the Norma Arm Region Chandra Survey (NARCS). NEWFIRM photometry was obtained to pinpoint the near-infrared counterparts of NARCS sources, while OSIRIS spectroscopy was used to help identify 20 sources with possible ...
arxiv +1 more source
The Different Fates of a Low-Mass X-Ray Binary [PDF]
We study the evolution of a low mass x-ray binary coupling a binary stellar evolution code with a general relativistic code that describes the behavior of the neutron star. We assume the neutron star to be low–magnetized (B 10 8 G).
G. Lavagetto+5 more
semanticscholar +1 more source
FirstINTEGRALobservations of eight persistent neutron star low mass X-ray binaries [PDF]
Early results from the INTEGRAL Core Program, for a sample of eight persistently bright neutron star low mass X-ray binaries in the energy range from 5 keV to 200 keV are presented. It is shown that INTEGRAL efficiently detects sources and that spectra may be obtained up to several hundreds of keV by combining data from three of the four INTEGRAL ...
PAIZIS, A.+20 more
openaire +5 more sources
Refractory high‐entropy alloys have attracted substantial attention for future ultrahigh‐temperature structural applications. Here the progression of key phase transformations in AlMo0.5NbTa0.5TiZr is established and correlated to the mechanical performance, highlighting the importance of the B2 phase.
George J. Wise+5 more
wiley +1 more source
This review discusses the use of Surface‐Enhanced Raman Spectroscopy (SERS) combined with Artificial Intelligence (AI) for detecting antimicrobial resistance (AMR). Various SERS studies used with AI techniques, including machine learning and deep learning, are analyzed for their advantages and limitations.
Zakarya Al‐Shaebi+4 more
wiley +1 more source
Long-term optical variability of high-mass X-ray binaries. II. Spectroscopy [PDF]
We present the results of our monitoring program to study the long-term variability of the Halpha line in high-mass X-ray binaries. We have carried out the most complete optical spectroscopic study of the global properties of high-mass X-ray binaries so far with the analysis of more than 1100 spectra of 20 sources.
arxiv +1 more source
ROSSI X-RAY TIMING EXPLORER OBSERVATIONS OF THE LOW-MASS X-RAY BINARY 4U 1608–522 IN THE UPPER-BANANA STATE [PDF]
To investigate the physics of mass accretion onto weakly magnetized neutron stars (NSs), 95 archival Rossi X-Ray Timing Explorer data sets of an atoll source 4U 1608–522, acquired over 1996–2004 in the so-called upper-banana state, were analyzed.
H. Takahashi, Soki Sakurai, K. Makishima
semanticscholar +1 more source
This study explores the use of laser‐induced forward transfer in the picosecond regime to create in vitro biomodels. Focusing on hydrodynamics and rheology, it investigates jet dynamics through time‐resolved imaging, optimizing laser fluence, biological ink viscosity, and printing distance to precisely control the volume and location of bioink ...
Lucas Duvert+5 more
wiley +1 more source
We present the results obtained from timing and spectral studies of 15 thermonuclear X-ray bursts from 4U 1820–30 observed with the Neutron Star Interior Composition Explorer (NICER) during its 5 yr of observations between 2017 and 2022.
Gaurava K. Jaisawal+16 more
doaj +1 more source
Measurement of neutron star parameters: A review of methods for low-mass X-ray binaries [PDF]
30 pages, 20 figures, 1 table, An Invited and Refereed Review, will be published in "Advances in Space Research"
openaire +3 more sources