Results 111 to 120 of about 1,084,097 (331)
Hunting Gamma-Ray-emitting FR0 Radio Galaxies in Wide-field Sky Surveys
The Astrophysical Journal, 2023 The latest entry in the jetted active galactic nuclei (AGN) family is the Fanaroff–Riley type 0 (FR0) radio galaxies. They share several observational characteristics, e.g., nuclear emission and host galaxy morphology, with FR I sources; however, they ...
Meghana Pannikkote +2 more
doaj +1 more source
Radio continuum spectra of galaxies in the Virgo cluster region [PDF]
, 2004 New radio continuum observations of galaxies in the Virgo cluster region at 4.85, 8.6, and 10.55 GHz are presented. These observations are combined with existing measurements at 1.4 and 0.325 GHz.
B. Vollmer +27 more
core +1 more source
Observation of Radio Galaxies with HAWC [PDF]
Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017), 2017 The High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory is an extensive air shower array located in Puebla, Mexico. The closest radio galaxy within the HAWC field of view, M87, has been detected in very high energies. In this work we report upper limits on the TeV -ray flux of the radio galaxy M87.
Daniel Avila +5 more
openaire +3 more sources
New Arabic Records From Cairo on Supernovae 1181 and 1006
Astronomische Nachrichten, EarlyView.ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer +3 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesWe conducted an extensive identification and analysis of various morphological classes and subclasses of radio galaxies using the latest high-resolution data from the second data release of the LOFAR Two-metre Sky Survey.
Soumen Kumar Bera +5 more
doaj +1 more source
High-energy neutrinos from radio galaxies [PDF]
, 2014 The IceCube experiment has recently reported the first observation of high-energy cosmic neutrinos. Their origin is still unknown. In this paper, we investigate the possibility that they originate in active galaxies.
J. Tjus +4 more
semanticscholar +1 more source
Effect of Background Magnetic Field on Ion Weibel Instability With High‐Intensity Short‐Pulse Lasers
Contributions to Plasma Physics, EarlyView.ABSTRACT The effect of finite background magnetic field on magnetic field amplification by Weibel instability using high‐intensity short‐pulse lasers is investigated. We consider Weibel instability for counter‐streaming sub‐relativistic plasma flows generated by shooting pure carbon targets with short‐pulse lasers.
Taiki Jikei +3 more
wiley +1 more source
Parent population of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies [PDF]
, 2015 Flat-spectrum radio-loud Narrow-Line Seyfert 1 galaxies (NLS1s) are a recently discovered class of $\gamma$-ray emitting Active Galactic Nuclei (AGN), that exhibit some blazar-like properties which are explained with the presence of a relativistic jet ...
M. Berton +12 more
semanticscholar +1 more source
Quantifying angular clustering in wide-area radio surveys [PDF]
, 2002 We quantify the angular clustering of radio galaxies in the NVSS and FIRST radio surveys using the two-point correlation function and the moments of counts-in-cells - both important points of comparison with theory.
Blake, Chris, Wall, Jasper
core +2 more sources
Conformal electronics: Materials, fabrication, and emerging applications
FlexMat, EarlyView.To promote the development of wearable technology, conformal electronics have attracted widespread attention in recent years due to their higher measurement accuracy, higher stability, and greater adaptability and comfort. We introduced the strategies to cope with different surfaces and advanced manufacturing technologies of conformal electronics, and ...
Jiayu Pan +6 more
wiley +1 more source