Results 31 to 40 of about 36,708 (200)

Tracing Magnetic Field in Super-Alfvénic Turbulence with Gradient Technique

The Astrophysical Journal
Super-Alfvénic turbulence is important for many astrophysical objects, particularly galaxy clusters. In this paper, we explore the accuracy of synchrotron intensity gradients and X-ray intensity gradients to map magnetic fields in super-Alfvénic ...
Ka Wai Ho, A. Lazarian
doaj   +1 more source

Uncovering the magnetic environment of our solar system

, 2012
Since its formation 4.6 billion years ago, our solar system has most likely crossed numerous magnetized interstellar clouds and bubbles of different sizes and contents on its path through the Milky Way.
Ben-Jaffel, Lotfi, Ratkiewicz, Romana
core   +2 more sources

Gradient Technique Theory: Tracing Magnetic Field and Obtaining Magnetic Field Strength

The Astrophysical Journal
The gradient technique is a promising tool with theoretical foundations based on the fundamental properties of MHD turbulence and turbulent reconnection.
Alex Lazarian, Ka Ho Yuen, Dmitri Pogosyan   +2 more
doaj   +1 more source

Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps

The Astrophysical Journal
We study the magnetic field structures in six giant filaments associated with the spiral arms of the Milky Way by applying the velocity gradient technique (VGT) to the ^13 CO spectroscopic data from the GRS, FUGIN, and SEDIGSM surveys.
Mengke Zhao, Guang-Xing Li, Jianjun Zhou, Xindi Tang, Jarken Esimbek, Yuxin He, Dalei Li, Weiguang Ji, Zhengxue Chang, Kadirya Tursun   +9 more
doaj   +1 more source

An observational test for correlations between cosmic rays and magnetic fields

, 2013
We derive the magnitude of fluctuations in total synchrotron intensity in the Milky Way and M33, from both observations and theory under various assumption about the relation between cosmic rays and interstellar magnetic fields.
Abdo, Andrew Fletcher, Anvar Shukurov, Arbutina, Arshakian, Banday, Banday, Beck, Beck, Beck, Beck, Beck, Berezinskii, Beuermann, Bridle, Burbidge, Burbidge, Burn, Carilli, Casse, Chi, Christensson, Chyży, Dagkesamanskii, Fatemeh Tabatabaei, Fletcher, Galtier, Gent, Getmantsev, Giacalone, Goldreich, Haslam, Haverkorn, Hoernes, Houde, Kuznetsov, La Porta, Laing, Laura La Porta, Lawson, Lazarian, Lithwick, Longair, Malik, Mao, Mills, Monin, Moss, Ohno, Oppermann, Orienti, Padoan, Parker, Parker, Parker, Pohl, Rainer Beck, Rand, Readhead, Rodion Stepanov, Roger, Rogstad, Ruzmaikin, Ruzmaikin, Scheuer, Schlickeiser, Scott, Shukurov, Slish, Snodin, Sokoloff, Stepanov, Stepanov, Stil, Sveshnikov, Tabatabaei, Tabatabaei, Tabatabaei, Tabatabaei, Volegova, Wilkin, Williams   +81 more
core   +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

Interstellar Polarization Survey. IV. Characterizing the Magnetic Field Strength and Turbulent Dispersion Using Optical Starlight Polarization in the Diffuse Interstellar Medium

The Astronomical Journal
Angular dispersion functions are typically used to estimate the fluctuations in polarization angle around the mean magnetic field orientation in dense regions, such as molecular clouds.
Y. Angarita, M. J. F. Versteeg, M. Haverkorn, A. Marchal, C. V. Rodrigues, A. M. Magalhães, R. Santos-Lima, Koji S. Kawabata   +7 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

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

Using numerical models of bow shocks to investigate the circumstellar medium of massive stars

, 2014
Many massive stars travel through the interstellar medium at supersonic speeds. As a result they form bow shocks at the interface between the stellar wind.
Cox, Nick, Decin, Leen, Meliani, Zakaria, van Marle, Allard Jan   +3 more
core   +3 more sources