Results 211 to 220 of about 1,084,097 (331)

Artificial Broadcasts as Galactic Populations. II. Comparing Individualist and Collective Bounds on Broadcast Populations in Single Galaxies

The Astrophysical Journal
The search for extraterrestrial intelligence includes efforts to constrain populations of artificial broadcasts in other galaxies. Previous efforts use individualist methods, searching for single broadcasts with high signal-to-noise ratio. These would be
Brian C. Lacki
doaj   +1 more source

AGN Feedback Signatures in UV Emission

Galaxies
Supermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
doaj   +1 more source

Cold gas & mergers: fundamental difference in HI properties of different types of radio galaxies?

, 2008
We present results of a study of large-scale neutral hydrogen (HI) gas in nearby radio galaxies. We find that the early-type host galaxies of different types of radio sources (compact, FR-I and FR-II) appear to contain fundamentally different large-scale
Emonts, Bjorn, Morganti, Raffaella, Oosterloo, Tom, van Gorkom, Jacqueline   +3 more
core   +1 more source

ON THE SPECTRA OF NONTHERMAL RADIO EMISSION OF THE MILKY WAY AND OTHER GALAXIES [PDF]

, 1963
V. A. Razin
openalex   +1 more source

The JWST View of Cygnus A: Jet-driven Coronal Outflow with a Twist

The Astrophysical Journal
We present first results from James Webb Space Telescope Near-Infrared Spectrograph, Mid-Infrared Instrument, and Keck Cosmic Webb Imager integral field spectroscopy of the powerful but highly obscured host galaxy of the jetted radio source Cygnus A.
Patrick M. Ogle, B. Sebastian, A. Aravindan, M. McDonald, G. Canalizo, M. L. N. Ashby, M. Azadi, R. Antonucci, P. Barthel, S. Baum, M. Birkinshaw, C. Carilli, M. Chiaberge, C. Duggal, K. Gebhardt, S. Hyman, J. Kuraszkiewicz, E. Lopez-Rodriguez, A. M. Medling, G. Miley, O. Omoruyi, C. O’Dea, D. Perley, R. A. Perley, E. Perlman, V. Reynaldi, M. Singha, W. Sparks, G. Tremblay, B. J. Wilkes, S. P. Willner, D. M. Worrall   +31 more
doaj   +1 more source

Rotation of the Galaxy NGC 1316 associated with the Radio Source Fornax A

, 1965
Leonard Searle
openalex   +1 more source

Mid-infrared Properties of Narrow-line Seyfert 1 Galaxies Detected by LoTSS DR2

The Astrophysical Journal
Narrow-line Seyfert 1 galaxies (NLS1s), a subclass of active galactic nuclei (AGNs) in an early stage of the accretion process, are also found to host relativistic jets. However, currently known jetted NLS1s are rare. The majority of NLS1s are undetected
Xu-Liang Fan
doaj   +1 more source

Ultra-high-energy cosmic rays from radio galaxies

, 2018
B. Eichmann, J. Rachen, L. Merten, A. V. Vliet, J. Tjus   +4 more
semanticscholar   +1 more source

Evidence for X-Radiation from the Radio Galaxy M87

, 1967
H. Bradt, W. Mayer, S. Naranan, S. Rappaport, G. Spada   +4 more
openalex   +1 more source

The Evolution of Quasi-Stellar Sources and Radio Galaxies [PDF]

, 1968
M. Ryle
openalex   +1 more source