Results 111 to 120 of about 128,614 (227)

Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy

The Astrophysical Journal
Radio data can give stringent constraints for annihilating dark matter. In general, radio observations can detect very accurate radio flux density with high resolution and different frequencies for nearby galaxies.
Man Ho Chan, Chak Man Lee, Lang Cui, Ning Chang, Chun Sing Leung   +4 more
doaj   +1 more source

Galaxy Cluster Radio Relics in Adaptive Mesh Refinement Cosmological Simulations: Relic Properties and Scaling Relationships

, 2011
Cosmological shocks are a critical part of large-scale structure formation, and are responsible for heating the intracluster medium in galaxy clusters. In addition, they are also capable of accelerating non-thermal electrons and protons. In this work, we
Burns, Jack O., Hallman, Eric J., O'Shea, Brian W., Skillman, Samuel W., Smith, Britton D., Turk, Matthew J.   +5 more
core   +1 more source

Radio Diagnostics Of Galaxy Interactions [PDF]

Symposium - International Astronomical Union, 1999
The Hickson Compact Groups (Hickson 1982) are relatively isolated systems of galaxies with projected separations comparable to the diameters of the galaxies themselves and are an ideal laboratory for the study of the effects of interactions on the various properties of galaxies.
openaire   +1 more source

The physiology of survival: Space

Experimental Physiology, EarlyView.
Damian M. Bailey, Angelique van Ombergen
wiley   +1 more source

A Linearly Polarized Merger Shock Down to 550 MHz: A uGMRT Study of the Merging Cluster A746

The Astrophysical Journal
Radio relics, arc-like polarized sources with highly aligned magnetic fields, are typically found on the outskirts of merging galaxy clusters. The magnetoionic media responsible for the significant coherence observed in radio relics remain poorly ...
Arpan Pal, Ruta Kale, Reinout J. van Weeren   +2 more
doaj   +1 more source

3D Localization of FRB 20190425A for Its Potential Host Galaxy and Implications

The Astrophysical Journal
Fast radio bursts (FRBs) are high-energy, short-duration phenomena in radio astronomy. Identifying their host galaxies can provide insights into their mysterious origins. In this paper, we introduce a novel approach to identifying potential host galaxies
Da-Chun Qiang, Zhi-Qiang You, Sheng Yang, Zong-Hong Zhu, Ting-Wan Chen   +4 more
doaj   +1 more source

RAD@home Citizen Science Discovery of Two Spiral Galaxies Where the 30–220 kpc Radio Lobes Are Possibly Shaped by Ram Pressure Stripping

Galaxies
We report the RAD@home citizen science discovery of two rare spiral-host radio galaxies (NGC 3898 and WISEA J221656.57-132042434.1 or RAD-“Thumbs up” galaxy), both exhibiting asymmetric radio lobes extending over 30 to 220 kiloparsec scales. We present a
Prakash Apoorva, Ananda Hota, Pratik Dabhade, P. K. Navaneeth, Dhruv Nayak, Arundhati Purohit   +5 more
doaj   +1 more source

The dynamical status of ZwCl 2341.1+0000: a very elongated galaxy structure with a complex radio emission

, 2013
We study the dynamical status of the galaxy system ZwCl 2341.1+0000, a filamentary multi-Mpc galaxy structure associated with a complex diffuse radio emission.
Barrena, R., Boschin, W., Girardi, M.
core   +1 more source

3C459: A highly asymmetric radio galaxy with a starburst

, 2003
Multifrequency radio observations of the radio galaxy 3C459 using MERLIN, VLA and the EVN, and an optical HST image using the F702W filter are presented.
Baade, Baars, Barthel, Bremer, Bridle, Carvalho, Conway, Crawford, D. J. Saikia, Dallacasa, Davis, de Koff, de Vries, Eracleous, Fanti, Farrah, Garrington, Haslam, Heckman, Heckman, Hernquist, Ishwara-Chandra, Ishwara-Chandra, Krause, Krause, Laing, Liu, Mantovani, McCarthy, Miller, Morganti, Morganti, O'Dea, O'Dea, Owen, P. Thomasson, Pedelty, Quinn, Saikia, Saikia, Saikia, Saikia, Saikia, Schilizzi, Simard-Normandin, Spinrad, T. W. B. Muxlow, Tadhunter, Thomasson, Toomre, Ulvestad, Yee   +51 more
core   +2 more sources

Low-frequency Probes of the Persistent Radio Sources Associated with Repeating Fast Radio Bursts

The Astrophysical Journal
The discovery of persistent radio sources (PRSs) associated with three repeating fast radio bursts (FRBs) has provided insight into the local environments of these FRBs.
Yash Bhusare, Yogesh Maan, Ajay Kumar
doaj   +1 more source