Results 81 to 90 of about 1,003,684 (284)
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
Narrow-Line Seyfert 1 Galaxies With Absorbed Jets–Insights From Radio Spectral Index Maps
Frontiers in Astronomy and Space Sciences, 2021 Narrow-line Seyfert 1 (NLS1) galaxies are active galactic nuclei (AGN) believed to be in the early stages of their evolution. A fraction of them have been found to host relativistic jets.
Emilia Järvelä +3 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
Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, EarlyView.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
HI absorption in Radio Galaxies [PDF]
Symposium - International Astronomical Union, 2002 Twenty-two powerful radio galaxies have been searched for HI absorption. We find the highest probability of detecting HI in absorption among narrow-line compact (or small) galaxies or galaxies with indication of richer interstellar medium (i.e. with ongoing or recent star-formation).
Morganti, R. +4 more
openaire +2 more sources
Cosmic ray acceleration to ultrahigh energy in radio galaxies [PDF]
EPJ Web of Conferences, 2019 The origin of ultrahigh energy cosmic rays (UHECRs) is an open question. In this proceeding, we first review the general physical requirements that a source must meet for acceleration to 10-100 EeV, including the consideration that the shock is not ...
Matthews James H. +3 more
doaj +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
Small Methods, EarlyView.The major bottleneck of PVMPO‐based positive electrodes is electrode degradation during extended cycling with EC‐containing electrolytes. This issue is mitigated by using EC‐free electrolytes with FEC additives, which exhibit reduced interfacial resistance, fewer surface cracks, improved capacity retention, and suppressed electrode degradation, thereby
Sathiya Priya Panjalingam +7 more
wiley +1 more source
Gas Outflows in Radio Galaxies [PDF]
Symposium - International Astronomical Union, 2004 We present a summary of our recent results on gas outflows in radio galaxies. Fast outflows (up to 2000 km s−1) have been detected both in ionized and neutral gas. The latter is particularly surprising as it shows that, despite the extremely energetic phenomena occurring near an AGN, some of the outflowing gas remains, or becomes again, neutral.
Morganti, R. +4 more
openaire +3 more sources
J-HERTz: J-PLUS Heritage Exploration of Radio Targets at z < 5
The Astrophysical Journal Supplement SeriesWe introduce J-HERTz (J-PLUS Heritage Exploration of Radio Targets at z < 5), a new multiwavelength catalog that combines optical narrowband photometry from J-PLUS, infrared observations from the Wide-field Infrared Survey Explorer, and deep low ...
D. Fernández Gil +19 more
doaj +1 more source