X-Ray Spectral Variability as a Probe of Multimessenger Emission in Blazar 5BZB J0630−2406
The Astrophysical JournalX-ray observations are essential for understanding the multimessenger emission mechanisms of active galactic nuclei (AGN). Blazars, a subset of AGN whose X-ray emission predominantly originates from relativistic jets, have been proposed as promising high-
Jose Maria Sanchez Zaballa +6 more
doaj +1 more source
X-ray redshifts with the International X-ray Observatory (IXO)
Advances in Space Research, 2011 7 páginas, 4 figuras, 1 tabla.-- El pdf del artículo es la versión pre-print. We explore the capabilities of the future space science mission IXO (International X-ray Observatory) for obtaining cosmological redshifts of distant Active Galactic Nuclei (AGNs) using the X-ray data only. We first find in which regions of the X-ray luminosity (LX)
Castelló-Mor, N. +2 more
openaire +2 more sources
Hard X-ray view of the past activity of Sgr A in a natural Compton mirror [PDF]
, 2004 We report the association of the recently discovered hard X-ray source IGR J17475−2822 with the giant molecular cloud Sgr B2 in the Galactic Center region. The broad band (3-200 keV) spectrum of the source constructed from data of different observatories
M. Revnivtsev +16 more
semanticscholar +1 more source
Thermonuclear Superburst of MAXI J1752−457 Observed with NinjaSat and MAXI
The Astrophysical Journal LettersAn uncatalogued bright X-ray transient was detected with MAXI on 2024 November 9, named MAXI J1752−457. The NinjaSat X-ray observatory promptly observed the source from November 10 to 18, while the small angular separation from the Sun hampered follow-up
Amira Aoyama +20 more
doaj +1 more source
Astroparticles from X-Ray Binary Coronae
The Astrophysical Journal LettersThe recent observation of high-energy neutrinos from the Galactic plane implies an abundant population of hadronic cosmic-ray sources in the Milky Way.
K. Fang +3 more
doaj +1 more source
Complete and Simultaneous Spectral Observations of the Black Hole X-Ray Nova XTE J1118+480 [PDF]
, 2001 The X-ray nova XTE J1118+480 suffers minimal extinction (b = 62°) and therefore represents an outstanding opportunity for multiwavelength studies. Hynes et al. conducted the first such study, which was centered on 2000 April 8 using UKIRT, EUVE, HST, and
J. E. McClintock +15 more
semanticscholar +1 more source
Progress in Multi-wavelength and Multi-Messenger Observations of Blazars and Theoretical Challenges
Galaxies, 2019 This review provides an overview of recent advances in multi-wavelength and multi-messenger observations of blazars, the current status of theoretical models for blazar emission, and prospects for future facilities.
Markus Böttcher
doaj +1 more source
First terrestrial soft X-ray auroral observation by the Chandra X-ray Observatory [PDF]
Journal of Atmospheric and Solar-Terrestrial Physics, 2007 Northern auroral regions of Earth were imaged with energetic photons in the 0.1-10 keV range using the High-Resolution Camera (HRC-I) aboard the Chandra X-ray Observatory at 10 epochs (each ~20 min duration) between mid-December 2003 and mid-April 2004.
Bhardwaj, Anil +8 more
openaire +2 more sources
X-Ray and Radio Emission from Ultraviolet-selected Star-forming Galaxies at Redshifts 1.5 ≲ z ≲ 3.0 in the GOODS-North Field [PDF]
, 2004 We have examined the stacked radio and X-ray emission from UV-selected galaxies spectroscopically confirmed to lie in the redshift range 1.5 ≲ z ≲ 3.0 in the Great Observatories Origins Deep Survey-North field to determine their average extinction and ...
N. Reddy, C. Steidel
semanticscholar +1 more source
A Generative Model for Realistic Galaxy Cluster X-Ray Morphologies
The Astrophysical JournalThe X-ray morphologies of clusters of galaxies display significant variations, reflecting their dynamical histories and the nonlinear dependence of X-ray emissivity on the density of the intracluster gas. Qualitative and quantitative assessments of X-ray
Maya Benyas +4 more
doaj +1 more source