Results 101 to 110 of about 1,327,251 (363)
Radial Distribution of X-ray Point Sources near the Galactic Center
, 2009 (Abridged) We present the LogN-LogS and spatial distributions of X-ray point sources in seven Galactic Bulge (GB) fields within 4 deg from the Galactic Center (GC).
Baganoff +29 more
core +1 more source
XMM-Newton view of X-ray overdensities from nearby galaxy clusters: the environmental dependencies [PDF]
, 2017 In this work, we studied ten nearby ($z$$ \leq$0.038) galaxy clusters to understand possible interactions between hot plasma and member galaxies. A multi-band source detection was applied to detect point-like structures within the intra-cluster medium ...
Caglar, Turgay, Hudaverdi, Murat
core +3 more sources
A Lack of 9 s Periodicity in the Follow-up NuSTAR Observation of LS 5039
The Astrophysical Journal, 2023 The Nuclear Spectroscopic Array (NuSTAR) observed the gamma-ray binary LS 5039 for a second time in order to check for the presence of a periodic signal candidate found in the data from the previous NuSTAR observation.
Oleg Kargaltsev +3 more
doaj +1 more source
Two Models for the Orbital Modulation of Gamma Rays in Cyg X-3
The Astrophysical JournalWe model the currently available γ -ray data on Cyg X-3 from the Fermi Large Area Telescope. Thanks to Cyg X-3’s very strong γ -ray activity during 2018–2021, the data quality has significantly improved.
Anton Dmytriiev +4 more
doaj +1 more source
X-ray Polarization from Magnetar Sources
GalaxiesThe launch of the IXPE telescope in late 2021 finally made polarization measurements in the 2–8keV band a reality, more than 40 years after the pioneering observations of the OSO-8 satellite.
Roberto Taverna , Roberto Turolla
doaj +1 more source
A review of rapid X-ray variability in X-ray binaries [PDF]
arXiv, 2004 A comprehensive review of aperiodic rapid X-ray variability (QPO and noise) in X-ray binaries with neutron stars and black holes.
arxiv
The Chandra Deep Field North Survey. VI. The Nature of the Optically Faint X-ray Source Population [PDF]
, 2001 We provide constraints on the nature of the optically faint (I>=24) X-ray source population from a 1 Ms Chandra exposure of a 8.4x8.4 arcmin region containing the Hubble Deep Field North. We detect 47 (2,400 deg^-2) optically faint X-ray sources. The fraction of optically faint X-ray sources is approximately constant (at approx 35%) for 0.5-8.0 keV ...
arxiv +1 more source
Identifying critical features of iron phosphate particle for lithium preference
Nature CommunicationsOne-dimensional (1D) olivine iron phosphate (FePO4) is widely proposed for electrochemical lithium (Li) extraction from dilute water sources, however, significant variations in Li selectivity were observed for particles with different physical attributes.
Gangbin Yan +13 more
doaj +1 more source
X-ray emission from GPS and CSS sources
, 2009 Many X-ray observations of GigaHertz Peaked Spectrum and Compact Steep Spectrum sources have been made with Chandra X-ray Observatory and XMM-Newton Observatory over the last few years.
Antonelli +37 more
core +1 more source
Symposium - International Astronomical Union, 1974 Data are presented for Cygnus X-1, Cygnus X-3, and Scorpius X-1 from radio to X-ray wavelengths. The evidence for Cygnus X-1's being a black hole is now quite convincing. New data for Cygnus X-3 show the presence of X-ray activity at the time of the giant radio outburst.
openaire +2 more sources