Results 71 to 80 of about 2,720 (178)

A setup to study atomic state population dynamics and optical polarization at CRYRING@ESR [PDF]

Journal of Instrumentation
We present a recently established setup for laser spectroscopy at CRYRING@ESR at the GSI Helmholtz Centre for Heavy Ion Research. Here, laser spectroscopy can be performed on stored and cooled ion bunches and coasting beams.
K. Mohr, R. S'anchez, W. Nortershauser, Z. Andelkovic, V. Hannen, E. Hanu, F. Herfurth, R. Hess, M. Horst, P. Imgram, K. Konig, C. Krantz, M. Lestinsky, Yu. A. Litvinov, E. Menz, P. Muller, J. Palmes, S. Rausch, T. Ratajczyk, L. Renth, J. Rossbach, R. S. Sidhu, F. Sommer, J. Spahn, N. Stallkamp, K. Ueberholz, G. Vorobjev, C. Weinheimer, D. Z. I. F. Kernphysik, T. U. Darmstadt, G. Fair, G. H. F. Schwerionenforschung, 1. Planckstr., 64291 Darmstadt, Germany GmbH, Darmstadt, G. I. F. Kernphysik, Universitat Munster, Germany Fakultat fur Physik und Astronomie, U. Heidelberg, 69117 Heidelberg, G. Jena, 07743 Jena, G. Frankfurt, Germany   +44 more
semanticscholar   +1 more source

Probing the atmosphere of a sub-Jovian planet orbiting a cool dwarf [PDF]

, 2017
We derive the 0.01 $\mu$m binned transmission spectrum, between 0.74 and 1.0 $\mu$m, of WASP-80b from low resolution spectra obtained with the FORS2 instrument attached to ESO's Very Large Telescope.
E. Sedaghati, H. Boffin, L. Delrez, M. Gillon, S. Csizmadia, Alexis M. S. Smith, Heike Rauer European Southern Observatory, G. B. Munchen, Deutsche Forschungsanstalt für Luft und Raumfahrt, Berlin, Zentrum fur Astronomie und Astrophysik, Tu Berlin, Battcock Centre for Experimental Astrophysics, C. University, Institut d'Astrophysique et de G'eophysique, Universit'e de Li'ege   +15 more
semanticscholar   +1 more source

The Fornax 3D project: Thick disks in a cluster environment [PDF]

Astronomy & Astrophysics, 2019
We have used deep MUSE observations to perform a stellar-kinematic and population analysis of FCC 153 and FCC 177, two edge-on S0 galaxies in the Fornax cluster.
F. Pinna, J. Falc'on-Barroso, M. Martig, L. Coccato, E. Corsini, P. Zeeuw, D. Gadotti, E. Iodice, R. Leaman, M. Lyubenova, I. Martín-Navarro, L. Morelli, M. Sarzi, G. Ven, S. Viaene, R. I. D. A. D. Canarias, D. Astrof'isica, U. L. Laguna, A. R. Institute, Liverpool John Moore's University, E. Observatory, D. Galilei', U. Padova, Inaf - Padova, S. Leiden, Leiden University, M. F. Physik, I. -. Capodimonte, M. F. Astronomie, University of California Observatories, I. D. A. Y. C. Planetarias, U. Atacama, Armagh Observatory, Planetarium, D. O. Astrophysics, U. Vienna, S. Observatorium, U. Gent, Centre for Astrophysics Research, U. Hertfordshire, D. Physics, Astronomy, Macquarie University, Australian Astronomical Observatory   +43 more
semanticscholar   +1 more source

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

Physik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Discovery of SRGA J144459.2-604207 with the SRG/RT-XC telescope : A well-tempered bursting accreting millisecond X-ray pulsar [PDF]

Astronomy & Astrophysics
We report the discovery of the new accreting millisecond X-ray pulsar SRGA\,J144459.2$-$604207 using data of the SRG The source was observed twice in February 2024 during the declining phase of the outburst. The timing analysis revealed a coherent signal
S. Molkov, A.A.Lutovinov, S. Tsygankov, V. Suleimanov, J. Poutanen, I. Lapshov, I. Mereminskiy, A. N. Semena, V. Arefiev, Applied Sciences, Moscow, D. Physics, Astronomy, U. Turku, Finland., I. F. A. U. Astrophysik, U. Tubingen, Germany   +17 more
semanticscholar   +1 more source

Non-thermal electrons open the non-equilibrium pathway of the phase transition in FeRh

Communications Physics
The optical excitation of metals initially creates short-lived non-Fermi distributions of the electrons. The electrons and holes excited far above and below the Fermi level quickly relax to hot Fermi-distributions that subsequently cool via electron ...
Maximilian Mattern, Steffen Peer Zeuschner, Matthias Rössle, Jon Ander Arregi, Vojtěch Uhlíř, Matias Bargheer   +5 more
doaj   +1 more source

Deterministic Nanofabrication of Quantum Dot ‐ Circular Bragg Grating Resonators with High Process Yield Using In Situ Electron Beam Lithography

Advanced Quantum Technologies, Volume 9, Issue 1, January 2026.
We demonstrate that deterministic in situ electron‐beam lithography enables precise integration of single quantum dots into compact circular Bragg grating resonators, achieving high extraction efficiency with only 3–4 rings. Across 95 devices, the approach delivers >$>$90% alignment yield and bright, narrow‐linewidth single‐photon emission, providing a
Avijit Barua, Kartik Gaur, Léo J. Roche, Suk In Park, Priyabrata Mudi, Sven Rodt, Jin‐Dong Song, Stephan Reitzenstein   +7 more
wiley   +1 more source

Testing a non-local 1-equation turbulent convection model: A solar model [PDF]

Astronomy & Astrophysics
Turbulent convection models treat stellar convection more physically than standard mixing-length theory by including non-local effects. We recently successfully applied the Kuhfuss version to convective cores in main sequence stars.
T. Braun, F. Ahlborn, A. W. M. F. Astrophysik, Garching, Germany, Ludwig-Maximilians-Universitat Munchen, Munich, Heidelberger Institut fur Theoretische Studien, Heidelberg   +8 more
semanticscholar   +1 more source

Identification of Near-infrared [Se iii] and [Kr vi] Emission Lines in Planetary Nebulae [PDF]

, 2017
We identify [Se iii] 1.0994 μm in the planetary nebula (PN) NGC 5315 and [Kr vi] 1.2330 μm in three PNe from spectra obtained with the Folded-Port InfraRed Echellette (FIRE) spectrometer on the 6.5 m Baade Telescope.
N. Sterling, S. Madonna, K. Butler, J. García-Rojas, A. Mashburn, C. Morisset, V. Luridiana, I. Georgia, Usa, Iac, Spain, I. F. A. U. Astrophysik, Germany., I. D. Astronom'ia, Unam, Mexico., U. Michigan, JINA-CEE   +17 more
semanticscholar   +1 more source

Rectification of Bacterial Diffusion in Microfluidic Labyrinths

Frontiers in Physics, 2019
In nature as well as in the context of infection and medical applications, bacteria often have to move in highly complex environments such as soil or tissues.
Ariane Weber, Ariane Weber, Marco Bahrs, Zahra Alirezaeizanjani, Xingyu Zhang, Xingyu Zhang, Carsten Beta, Vasily Zaburdaev, Vasily Zaburdaev   +8 more
doaj   +1 more source