Results 71 to 80 of about 8,445,656 (161)

Radio jets and diffuse X-ray emission around the peculiar galaxy pair ESO295-IG022

, 2001
We report Australia Telescope Compact Array (ATCA) radio-continuum and ROSAT PSPC X-ray observations of the region surrounding the peculiar galaxy pair ESO 295-IG022, lying at the centre of the poor cluster Abell S0102.
M. D. Filipović, Read, Andrew, P. A. Jones, Jones, PA, W. Pietsch, Filopovic, MD, Pietsch, W, A. M. Read   +7 more
core   +1 more source

Multi-frequency study of supernova remnants and H II regions in NGC300

, 2004
We present a multi-frequency study of supernova remnants (SNRs) and HII regions in the nearby Sculptor Group Sd galaxy NGC300, based on new ATCA observations at the wavelengths of 13 and 20 cm, XMM-Newton observations, newly-processed ROSAT (PSPC/HRI ...
Payne, Jeffrey L., Carpano, Stefania, Jones, Paul A., Duric, Nebojsa, Filipovic, Miroslav, Pannuti, Thomas G., White, Graeme L.   +6 more
core  

A MeerKAT exploration of X-shaped Radio Galaxies

SKA pathfinders and precursors have, over the past few years, uncovered radio galaxies with unforeseen morphological features and revealed unknown aspects of sources we thought we knew very well. We may expect to find larger populations of what for now are rare sources, thus shedding light on some of the current astrophysical mysteries.
openaire   +1 more source

CGCG 292-057: A Near-Distance Merger Galaxy with Double–Double Radio Lobes and X-shape Structure

Journal of Astrophysics and Astronomy, 2011
J1159+5820 is an extended radio galaxy with a quite unusual morphology, featuring two pairs of radio lobes. Such sources, called double–double radio galaxies, constitute a very rare class of extragalactic radio sources. Furthermore, the extended radio structure of this source shows an X-shape form. According to a much likely scenario, such a morphology
Jamrozy, Marek, Kozieł-Wierzbowska, Dorota, Zoła, Stanisław, Kuźmicz, Agnieszka, Machalski, Jerzy   +4 more
openaire   +2 more sources

The particle content of low-power radio galaxies in groups and clusters [PDF]

, 2013
The synchrotron-radiating particles and magnetic fields in low-power radio galaxies (including most nearby cluster-centre sources), if at equipartition, can provide only a small fraction of the total internal energy density of the radio lobes or plumes ...
Croston, J.H., J. H. Croston, Hardcastle, M.J., M. J. Hardcastle   +3 more
core   +1 more source

Evidence for In - Situ Acceleration of Relativistic Particles in the Wings of X-shaped Radio Galaxies

The Astrophysical Journal
Abstract We report evidence for in - situ acceleration/reacceleration of relativistic particles in 11 radio wings out of a total of 68 wings sufficiently well-resolved for spectral mapping, which belong to our sample of 40 X-shaped ...
Dusmanta Patra, null Gopal-Krishna, Ravi Joshi   +2 more
openaire   +2 more sources

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

Hi gas in the rejuvenated radio galaxy PKS 2014–55 [PDF]

We present new high-spectral-resolution MeerKAT observations of absorption against the central region of the restarted, giant, X-shaped radio galaxy PKS2014–55, which exhibits morphological evidence of three distinct cycles of activity.
Deane RP, Heywood, I., Atemkeng, M., Oozeer, N., Giri G, Smirnov O, Manamela TE, Kupa, M., Bester HL, White SV, Mtshweni, L., Bester, H., Heywood I, Magolego I, Kupa MS, Cotton, W., Józsa, G., Thorat K, Magolego, I., Frank BS, Atemkeng M, Maccagni, F., Smirnov, O., Mauch, T., Fanaroff BL, Lawrie G, Thorat, K., Józsa GI, Giri, G., Maccagni FM, Frank, B., Oozeer N, White, S., Lawrie, G., Fanaroff, B., Mtshweni LK, Cotton WD, Manamela, T., Deane, R., Mauch T   +39 more
core   +1 more source

ASKAP reveals the radio tail structure of the Corkscrew Galaxy shaped by its passage through the Abell 3627 cluster [PDF]

Among the bent tail radio galaxies common in galaxy clusters are some with long, collimated tails (so-called head-tail galaxies) shaped by their interactions with the intracluster medium (ICM).
Duchesne, Stefan W., Riseley, C. J., Venturi, Tiziana, -, Koribalski, Bärbel S., Velović, Velibor, Anderson, Craig, Botteon, Andrea, Vernstrom, Tessa, Hopkins, Andrew M., Norris, Ray P., Shabala, Stanislav S., Gupta, Nikhel, Carretti, Ettore, Lenc, Emil   +14 more
core  

Magnetic fields and relativistic electrons fill entire galaxy cluster. [PDF]

Sci Adv, 2022
Botteon A, van Weeren RJ, Brunetti G, Vazza F, Shimwell TW, Brüggen M, Brüggen M, Röttgering HJA, de Gasperin F, Akamatsu H, Bonafede A, Cassano R, Cuciti V, Dallacasa D, Di Gennaro G, Gastaldello F.   +15 more
europepmc   +1 more source