Results 21 to 30 of about 16,220 (163)

Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles? [PDF]

Angew Chem Int Ed Engl
A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Arns R, McClish R, Hemberger P, Bodi A, Bouwman J, Kasper T, Schleier D.   +6 more
europepmc   +2 more sources

Dust growth and pebble formation in the initial stages of protoplanetary disk evolution [PDF]

Astronomy & Astrophysics
The initial stages of planet formation may start concurrently with the formation of a gas-dust protoplanetary disk. This makes the study of the earliest stages of protoplanetary disk formation crucially important.
E. Vorobyov, Igor Kulikov, V. Elbakyan, James McKevitt, M. G. U. O. Vienna, D. O. Astrophysics, 1180, Vienna, M Austria, R. D. O. Physics, Southern Federal University, Rostov-on-Don, 344090, Russia, Institute of Applied Mathematics, mat. physical Sb Ras, Novosibirsk, 630090, F. Physik, U. Duisburg-Essen, D-47057 Duisburg, Germany   +21 more
semanticscholar   +1 more source

The SAMI Galaxy Survey: Using Tidal Streams and Shells to Trace the Dynamical Evolution of Massive Galaxies [PDF]

Monthly notices of the Royal Astronomical Society
Slow rotator galaxies are distinct amongst galaxy populations, with simulations suggesting that a mix of minor and major mergers are responsible for their formation.
T. Rutherford, J. V. D. Sande, S. Croom, L. Valenzuela, R. Remus, F. D’Eugenio, S. Vaughan, H. Zovaro, S. Casura, S. Barsanti, J. Bland-Hawthorn, S. Brough, J. Bryant, M. Goodwin, N. Lorente, Sree Oh, Andrei Ristea Sydney Institute for Astronomy, S. O. Physics, The University of Sydney, A. C. F. A. A. I. 3. Dimensions, Australia, Universitats-Sternwarte, F. Physik, Ludwig-Maximilians-Universitat Munchen, Kavli Institute for Cosmology, U. Cambridge, C. Group, School of Applied Mathematical, P. Sciences, Macquarie University, Astronomy, Astrophysics, Astrophotonics Research Centre, Centre for Gravitational Astrophysics, Supercomputing, School of Materials Science, S. U. O. Technology, Research School for Astronomy, Australian National University, H. Sternwarte, U. Hamburg, University of Wales, Astralis-USydney, University of Sydney, AAO-MQ, Faculty of Electrical Engineering, D. O. Astronomy, Yonsei University Observatory, Yonsei University, International Centre for Radio Astronomy Research, The University of Western Australia   +50 more
semanticscholar   +1 more source

Cavity-enhanced Raman microscopy of individual carbon nanotubes

Nature Communications, 2016
Enhancement techniques are a viable route to improve the intrinsically weak Raman scattering intensity. Here the authors demonstrate Purcell enhancement of Raman scattering in a tunable, high-finesse microcavity and use it for Raman imaging of individual
Thomas Hümmer, Jonathan Noe, Matthias S. Hofmann, Theodor W. Hänsch, Alexander Högele, David Hunger   +5 more
doaj   +1 more source

I-BEAT: Ultrasonic method for online measurement of the energy distribution of a single ion bunch

Scientific Reports, 2019
The shape of a wave carries all information about the spatial and temporal structure of its source, given that the medium and its properties are known. Most modern imaging methods seek to utilize this nature of waves originating from Huygens’ principle ...
Daniel Haffa, Rong Yang, Jianhui Bin, Sebastian Lehrack, Florian-Emanuel Brack, Hao Ding, Franz S. Englbrecht, Ying Gao, Johannes Gebhard, Max Gilljohann, Johannes Götzfried, Jens Hartmann, Sebastian Herr, Peter Hilz, Stephan D. Kraft, Christian Kreuzer, Florian Kroll, Florian H. Lindner, Josefine Metzkes-Ng, Tobias M. Ostermayr, Enrico Ridente, Thomas F. Rösch, Gregor Schilling, Hans-Peter Schlenvoigt, Martin Speicher, Derya Taray, Matthias Würl, Karl Zeil, Ulrich Schramm, Stefan Karsch, Katia Parodi, Paul R. Bolton, Walter Assmann, Jörg Schreiber   +33 more
doaj   +1 more source

Observing non-ergodicity due to kinetic constraints in tilted Fermi-Hubbard chains

Nature Communications, 2021
It was predicted that complex thermalizing behaviour can arise in many-body systems in the absence of disorder. Here, the authors observe non-ergodic dynamics in a tilted optical lattice that is distinct from previously studied regimes, and propose a ...
Sebastian Scherg, Thomas Kohlert, Pablo Sala, Frank Pollmann, Bharath Hebbe Madhusudhana, Immanuel Bloch, Monika Aidelsburger   +6 more
doaj   +1 more source

Dynamically assisted Sauter-Schwinger effect — non-perturbative versus perturbative aspects

Journal of High Energy Physics, 2017
The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum by a strong and slowly varying electric field.
G. Torgrimsson, C. Schneider, J. Oertel, R. Schützhold   +3 more
doaj   +1 more source

Ultrashort Ne+ ion pulses for use in pump–probe experiments: numerical simulations

New Journal of Physics, 2023
A time resolved experiment to investigate the ultrafast dynamics following an ion impact onto a solid surface requires an ultrashort ion pump pulse in combination with a properly synchronized and time resolved probe.
P Kucharczyk, A Golombek, M Schleberger, A Wucher, L Breuer   +4 more
doaj   +1 more source

Pre-equilibrium Photon and Dilepton Production [PDF]

EPJ Web of Conferences
We use QCD kinetic theory to compute photon and dilepton production in the chemically equilibrating out-of-equilibrium quark-gluon plasma created in the early stages of high-energy heavy-ion collisions.
Garcia-Montero Oscar, Mazeliauskas Aleksas, Plaschke Philip, Schlichting Sören   +3 more
doaj   +1 more source

Scaling behavior of anisotropic flow harmonics in the far from equilibrium regime

European Physical Journal C: Particles and Fields, 2018
We consider the development of anisotropic flow in an expanding system of particles undergoing very few rescatterings, using a kinetic-theoretical description with a nonlinear collision term. We derive the scaling behaviors of the harmonic coefficients $$
Nicolas Borghini, Steffen Feld, Nina Kersting   +2 more
doaj   +1 more source