Results 21 to 30 of about 3,416 (224)

Magnetic Helicity Fluxes from Triple Correlators

The Astrophysical Journal, 2023
Fluxes of the magnetic helicity density play an important role in large-scale turbulent dynamos, allowing the growth of large-scale magnetic fields while overcoming catastrophic quenching.
Kishore Gopalakrishnan, Kandaswamy Subramanian   +1 more
doaj   +1 more source

Highly ordered magnetic fields in the tail of the jellyfish galaxy JO206 [PDF]

, 2020
Jellyfish galaxies have long tails of gas that is stripped from the disk by ram pressure due to the motion of galaxies in the intracluster medium in galaxy clusters. Here, we present the magnetic field strength and orientation within the disk and the (90-
Adebahr, Björn, Pfrommer, Christoph (Prof. Dr.), Müller, Ancla, SERRA, Paolo, POGGIANTI, Bianca Maria, Dettmar, Ralf-Jürgen, GITTI, Myriam, MORETTI, ALESSIA, IGNESTI, Alessandro, Sparre, Martin, Sparre, Martin (Dr.), VULCANI, Benedetta, Pfrommer, Christoph   +12 more
core   +1 more source

Magnetic fields in spiral galaxies [PDF]

The Astronomy and Astrophysics Review, 1990
Radio synchrotron emission is a powerful tool to study the strength and structure of magnetic fields in galaxies. Unpolarized synchrotron emission traces isotropic turbulent fields which are strongest in spiral arms and bars (20-30 μG) and in central starburst regions (50-100 μG).
openaire   +5 more sources

Magnetic fields and relativistic electrons fill entire galaxy cluster

, 2022
The hot plasma within merging galaxy clusters is predicted to be filled with shocks and turbulence that may convert part of their kinetic energy into relativistic electrons and magnetic fields generating synchrotron radiation.
Di Gennaro, G., Botteon, A., de Gasperin, Francesco, Röttgering, H. J., Vazza, Franco, Cuciti, Virginia, Di Gennaro, Gabriella, Dallacasa, D., Weeren, R. J. van, Botteon, Andrea, Brüggen, Marcus, Bonafede, Annalisa, van Weeren, R. J., Röttgering, H. J. A., van Weeren, Reinout J, van Weeren, Reinout J., de Gasperin, F., Di Gennero, G., Dallacasa, Daniele, Cassano, R., Cassano, Rossella, Shimwell, T. W., Akamatsu, Hiroki, Bonafede, A., Cuciti, V., Gasperin, F. de, Röttgering, Huub J. A., Vazza, F., Shimwell, Timothy W., Brüggen, M., Akamatsu, H., Gastaldello, F., Gastaldello, Fabio, Shimwell, Timothy W, Röttgering, Huub J A, Brunetti, G., Brunetti, Gianfranco   +36 more
core   +1 more source

The Strength of the Sheared Magnetic Field in the Galactic’s Circumnuclear Disk

The Astronomical Journal, 2023
Recent high-resolution 53 μ m polarimetric observations from SOFIA/HAWC+ have revealed the inferred plane-of-the-sky magnetic field ( B -field) orientation in the Galactic center’s circumnuclear disk (CND).
Jordan A. Guerra, Enrique Lopez-Rodriguez, David T. Chuss, Natalie O. Butterfield, Joan T. Schmelz   +4 more
doaj   +1 more source

Magnetic fields and UHECR propagation [PDF]

EPJ Web of Conferences, 2023
I review the main observational tools used to detect and measure magnetic fields in the interstellar medium of our Galaxy (considering both the Galactic disk and the Galactic halo), in the interstellar medium of external galaxies, and in the ...
Ferrière Katia
doaj   +1 more source

The magnetic field in the central parsec of the Galaxy [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
We present a polarisation map of the warm dust emission from the minispiral in the central parsec of the Galactic centre. The observations were made at a wavelength of 12.5 microns with CanariCam mounted on the 10.4-m Gran Telescopio Canarias. The magnetic field traced by the polarised emission from aligned dust grains is consistent with previous ...
Roche, P, Lopes-Rodriguez, E, Telesco, C, Schoedel, R, Packham, C   +4 more
openaire   +4 more sources

Magnetic fields in barred galaxies [PDF]

Astronomy & Astrophysics, 2002
The total and polarized radio continuum emission of 20 barred galaxies was observed with the Very Large Array (VLA) at 3, 6, 18 and 22 cm and with the Australia Telescope Compact Array (ATCA) at 6 cm and 13 cm. Maps at 30 arcsec angular resolution are presented here.
Beck R, Shoutenkov V, Ehle M, Harnett JI, Haynes RF, Shukurov A, Sokoloff DD, Thierbach M   +7 more
openaire   +3 more sources

Turbulence in the interstellar medium [PDF]

, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L., Chian, A. C.-L., G. Kowal, Falgarone, E., E. Falgarone, Falceta-Goncalves, D., Kowal, G., Chian, A., A. C.-L. Chian, D. Falceta-Gonçalves   +9 more
core   +1 more source

The impact of magnetic fields on cosmological galaxy mergers

, 2021
Mergers play an important role in galaxy evolution. In particular, major mergers are able to have a transformative effect on galaxy morphology. In this paper, we investigate the role of magnetic fields in gas-rich major mergers.
Pfrommer, Christoph (Prof. Dr.), Pakmor, Rüdiger (Dr.), Sparre, Martin (Dr.), Whittingham, Joseph (Dr.)   +3 more
core   +1 more source