Results 11 to 20 of about 1,733 (162)

Magnetic fields in the non-masing ISM [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractObservations of the Zeeman effect in OH and H2O masers provide valuable information about magnetic field strength and direction, but only for the very high density gas in which such masers are found. In order to understand the role of magnetic fields in the evolution of the interstellar medium and in the star formation process, it is essential ...
openaire   +1 more source

Demonstration of Magnetic Field Tomography with Starlight Polarization toward a Diffuse Sightline of the ISM [PDF]

The Astrophysical Journal, 2019
Abstract The availability of large data sets with stellar distance and polarization information will enable a tomographic reconstruction of the (plane-of-the-sky-projected) interstellar magnetic field in the near future. We demonstrate the feasibility of such a decomposition within a small region of the diffuse interstellar medium (ISM).
Georgia V. Panopoulou, Konstantinos Tassis, Raphael Skalidis, Dmitriy Blinov, Ioannis Liodakis, Vasiliki Pavlidou, Stephen B. Potter, Anamparambu N. Ramaprakash, Anthony C. S. Readhead, Ingunn K. Wehus   +9 more
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The impact of magnetic fields on the chemical evolution of the supernova-driven ISM [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We present three-dimensional magneto-hydrodynamical simulations of the self-gravitating interstellarmedium (ISM) in a periodic (256 pc)3 box with a mean number density of 0.5 cm-3. At a fixed supernova rate we investigate the multi-phase ISM structure, H2 molecule formation and density-magnetic field scaling for varying initial magnetic field strengths
Pardi, A., Girichidis, P., Naab, T., Walch, S., Peters, T., Heitsch, F., Glover, S. C. O., Klessen, R. S., Wünsch, R., Gatto, A.   +9 more
openaire   +3 more sources

Studies of Regular and Random Magnetic Fields in the ISM: Statistics of Polarization Vectors and the Chandrasekhar‐Fermi Technique [PDF]

The Astrophysical Journal, 2008
submitted to ApJ, 42 ...
Falceta-Gonçalves, Diego, Lazarian, Alex, Kowal, Grzegorz   +2 more
openaire   +3 more sources

Global dynamical evolution of the ISM in star forming galaxies [PDF]

Astronomy & Astrophysics, 2005
In star forming disk galaxies, matter circulation between stars and the interstellar gas, and, in particular the energy input by random and clustered supernova explosions, determine the dynamical and chemical evolution of the ISM, and hence of the galaxy as a whole.
de Avillez, Miguel A., Breitschwerdt, Dieter   +1 more
openaire   +3 more sources

Studying ISM magnetic fields and turbulent regimes from polarimetric maps

, 2008
to appear in ...
Falceta-Gonçalves, D., Lazarian, A., Kowal, Grzegorz   +2 more
openaire   +3 more sources

Magnetic field effects on the ISM structure and galactic outflows

, 2018
The role of magnetic fields in the multi-phase interstellar medium (ISM) is explored using magnetohydrodynamic (MHD) simulations that include energy injection by supernova (SN) explosions and allow for dynamo action. Apart from providing additional pressure support of the gas layer, magnetic fields reduce the density contrast between the warm and hot ...
Shukurov, A., Evirgen, C. C., Fletcher, A., Bushby, P. J., Gent, F. A.   +4 more
openaire   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source