Results 21 to 30 of about 35,066 (146)

FAST Polarization Mapping of the Supernova Remnant VRO 42.05.01

The Astrophysical Journal, 2023
We have obtained the polarization data cube of the supernova remnant (SNR) VRO 42.05.01 at 1240 MHz using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST).
Li Xiao, Ming Zhu, Xiao-Hui Sun, Peng Jiang, Chun Sun   +4 more
doaj   +1 more source

Measuring interstellar magnetic fields by radio synchrotron emission [PDF]

, 2008
Radio synchrotron emission, its polarization and its Faraday rotation are powerful tools to study the strength and structure of interstellar magnetic fields. The total intensity traces the strength and distribution of total magnetic fields.
Battaner, Beck, Beck, Beck, Beck, Beck, Berkhuijsen, Brentjens, Chyży, Chyży, de Avillez, de Jong, Dumke, Elstner, Fletcher, Han, Heiles, Hoernes, Johnston-Hollitt, Klein, Krause, Krause, Lisenfeld, Lisenfeld, Men, Moss, Nieten, Niklas, Patrikeev, Rainer Beck, Soida, Stepanov, Sun, Tabatabaei, Tabatabaei, Tabatabaei, Walsh, Wolleben   +37 more
core   +1 more source

Obtaining the Strength of the Magnetic Field from E- and B-Modes of Dust Polarization

The Astrophysical Journal, 2023
We perform numerical simulations of supersonic magnetohydrodynamic (MHD) turbulence and calculate Fourier power spectra of E - and B -modes arising from dust polarization. We pay close attention to the ratio of E -mode to B -mode spectra (a.k.a.
Jungyeon Cho
doaj   +1 more source

Biermann Mechanism in Primordial Supernova Remnant and Seed Fields

, 2006
We have studied the generation of magnetic fields by the Biermann mechanism in the pair-instability supernovae explosions of the first stars. The Biermann mechanism produces magnetic fields in the shocked region between the bubble and interstellar medium
Abel, Amjad, Ando, Athreya, Balsara, Biermann, Bromm, Davies, Ferrière, Fosalba, Freyer, Fryer, Gnedin, Han, Hanayama, Hanayama, Kulsrud, Miranda, Mori, Omukai, Pelló, Plaga, Poezd, Raymond, Ricotti, Schneider, Takahashi, Tsagas, Widrow, Yamazaki   +29 more
core   +1 more source

Shape and evolution of wind-blown bubbles of massive stars: on the effect of the interstellar magnetic field

, 2015
The winds of massive stars create large (>10 pc) bubbles around their progenitors. As these bubbles expand they encounter the interstellar coherent magnetic field which, depending on its strength, can influence the shape of the bubble.
Marcowith, Alexandre, Meliani, Zakaria, van Marle, Allard Jan   +2 more
core   +2 more sources

The Simons Observatory: Galactic Science Goals and Forecasts

The Astrophysical Journal, 2022
Observing in six frequency bands from 27 to 280 GHz over a large sky area, the Simons Observatory (SO) is poised to address many questions in Galactic astrophysics in addition to its principal cosmological goals.
Brandon S. Hensley, Susan E. Clark, Valentina Fanfani, Nicoletta Krachmalnicoff, Giulio Fabbian, Davide Poletti, Giuseppe Puglisi, Gabriele Coppi, Jacob Nibauer, Roman Gerasimov, Nicholas Galitzki, Steve K. Choi, Peter C. Ashton, Carlo Baccigalupi, Eric Baxter, Blakesley Burkhart, Erminia Calabrese, Jens Chluba, Josquin Errard, Andrei V. Frolov, Carlos Hervías-Caimapo, Kevin M. Huffenberger, Bradley R. Johnson, Baptiste Jost, Brian Keating, Heather McCarrick, Federico Nati, Mayuri Sathyanarayana Rao, Alexander van Engelen, Samantha Walker, Kevin Wolz, Zhilei Xu, Ningfeng Zhu, Andrea Zonca   +33 more
doaj   +1 more source

Chemical Properties of an Aryloxenium Cation with a Triplet Electronic Ground State

Chemistry – A European Journal, Accepted Article.
Aryloxenium cations contain a formally positively‐charged, monovalent oxygen atom with an incomplete electron shell. In spite of this unusual structural element, they are key intermediates in many important processes, such as biological oxidation reactions and the industrial generation of thermoplastics.
Tuong V. Nguyen, John J. Nash, Hilkka Kenttamaa   +2 more
wiley   +1 more source

Magnetic Field of Molecular Gas Measured with the Velocity Gradient Technique. II. Curved Magnetic Field in kpc-scale Bubble of NGC 628

The Astrophysical Journal
We report the detection of the ordered alignment between the magnetic field and kpc-scale bubbles in the nearby spiral galaxy, NGC 628. Applying the Velocity Gradient Technique on CO spectroscopic data from the ALMA-PHANGS, the magnetic field of NGC 628 ...
Mengke Zhao, Jianjun Zhou, Willem A. Baan, Yue Hu, A. Lazarian, Xindi Tang, Jarken Esimbek, Yuxin He, Dalei Li, Weiguang Ji, Zhengxue Chang, Kadirya Tursun   +11 more
doaj   +1 more source

Turbulence in the interstellar medium [PDF]

Nonlinear Processes in Geophysics, 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 ...
D. Falceta-Gonçalves, G. Kowal, E. Falgarone, A. C.-L. Chian   +3 more
doaj   +1 more source

The Origin of Filamentary Star Forming Clouds in Magnetised Galaxies

, 2018
Observations show that galaxies and their interstellar media are pervaded by strong magnetic fields with energies in the diffuse component being at least comparable to the thermal and even as large or larger than the turbulent energy.
Banerjee, Robi, Körtgen, Bastian, Pudritz, Ralph E., Schmidt, Wolfram   +3 more
core   +1 more source