Results 51 to 60 of about 183 (111)
The Era of Kilometer‐Scale Neutrino Detectors
Advances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013 Neutrino astronomy beyond the Sun was first imagined in the late 1950s; by the 1970s, it was realized that kilometer‐scale neutrino detectors were required. The first such instrument, IceCube, transforms a cubic kilometer of deep and ultra‐transparent Antarctic ice into a particle detector.
Francis Halzen, Uli Katz, Jose Bernabeu
wiley +1 more source
Multiple Shock Fronts in RBS 797: The Chandra Window on Shock Heating in Galaxy Clusters
The Astrophysical Journal, 2023 Using ∼427 ks of Chandra observations, we present a study of shock heating and intracluster medium (ICM) cooling in the galaxy cluster RBS 797. We discover three nested pairs of weak shocks at roughly 50, 80, and 130 kpc from the center. The total energy
F. Ubertosi +13 more
doaj +1 more source
PG 1004+130: Hybrid Morphology Source or a Restarted FRII? A uGMRT Polarimetric Investigation
The Astrophysical Journal, 2023 We present the polarization image of the hybrid morphology and broad absorption line quasar PG 1004+130 at 694 MHz obtained with the upgraded Giant Metrewave Radio Telescope. We detect linear polarization in this source’s core, jets, and lobes.
Salmoli Ghosh +3 more
doaj +1 more source
The Astrophysical Journal, 2023 In order to investigate the far-infrared excess detected from the western hot spot of the radio galaxy Pictor A with the Herschel observatory, submillimeter photometry is performed with the Atacama Compact Array (ACA) of the Atacama Large Millimeter ...
Naoki Isobe +6 more
doaj +1 more source
The Astrophysical JournalThis study comprehensively investigates the gamma-ray dim population of Fanaroff–Riley Type 0 (FR0) radio galaxies as potentially significant sources of ultra–high energy cosmic rays (UHECRs, E > 10 ^18 eV) detected on Earth.
Jon Paul Lundquist +8 more
doaj +1 more source
Very Large Array imaging of five Fanaroff-Riley II 3CR radio galaxies
The Astronomical Journal, 1993 This paper presents high resolution, high dynamic range Very Large Array (VLA) radio images of five luminous classical double radio galaxies (RGs) at 5 GHz. We detect the radio cores of at least four of these RGs. A long, continuous radio jet is seen only in one source, 3C 22, in contrast to the 100% jet detection in a comparable sample of QSRs ...
Ilias Fernini +3 more
openaire +1 more source
Acceleration of Ultra-high-energy Cosmic Rays in the Kiloparsec-scale Jets of Nearby Radio Galaxies
The Astrophysical Journal LettersRadio galaxies have long been considered as potential sources of ultra-high-energy cosmic rays (UHECRs). Recent analyses of the UHECR spectrum, composition, and arrival directions indicate that the nearest radio galaxy, Centaurus A, could be linked to ...
Jie-Shuang Wang +3 more
doaj +1 more source
Fanaroff-Riley I galaxies as the parent populations of BL Lacertae objects. III - Radio constraints
The Astrophysical Journal, 1991 C. M. Urry, P. Padovani, M. Stickel
openalex +2 more sources
The Astrophysical JournalEmpirical studies of cold gas content are essential for comprehending the star formation activities and evolution in galaxies. However, it is not straightforward to understand these processes because they depend on various physical properties of the ...
Sai Wagh +8 more
doaj +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