Results 31 to 40 of about 248,477 (327)

An atomic clock synchronized versatile all-in-one digital 'LockBox'. [PDF]

Sci Rep
A reliable and robust active stabilization of different control parameters is key to the success of many experiments. The essential hardware for that; lock-in detection, RF generator, and proportional-integral-derivative feedback control should have ...
Johnson S, Das Gupta S, Saravanan TR, Banerjee S, Majhi S, De S.   +5 more
europepmc   +2 more sources

TeV Particle Astrophysics II: Summary comments [PDF]

, 2006
A unifying theme of this conference was the use of different approaches to understand astrophysical sources of energetic particles in the TeV range and above.
, Abassi R U, Abraham J, Achterberg A (IceCube Collaboration), Allard D, Aloisio R, Blas Cabrera, Bouwhuis M, Budnev N M, Charles Dermer, Coyle P, Dieter Horns, Eckart Lorenz, Eiichiro Komatsu, Elena Aprile, Elisa Bernardini (IceCube), Elisa Resconi, Frank Krennrich, Gabriella Catanesi, Gary Varner, Haino Falcke, Han T, Haungs A, Hillas A M, James Cronin, Jordan Goodman, Julia Becker, Kael Hanson, McKee F, Muraishi H, Neil Cornish, Nicolas Busca, Pasquale Blasi, Peters B, Piero Ullio, Scott Wakely, Shigeru Yoshida, Simon Swordy, Sommers P, Thomas K Gaisser, Thomas K Gaisser, Thomson G B, Tom Weiler   +42 more
core   +2 more sources

Cherenkov Telescope Ring - An Idea for World Wide Monitoring of the VHE Sky [PDF]

EPJ Web of Conferences, 2019
With very high energy (VHE) gamma-ray astronomy becoming a mature branch of observational astrophysics, and the multi-messenger sky being opened up by neutrino observatories and gravitational wave detectors, we here propose to set up a ring of imaging ...
Ruhe Tim, Elsässer Dominik, Rhode Wolfgang, Nöthe Maximilian, Brügge Kai   +4 more
doaj   +1 more source

Directionally Effect Observation in Topographical Site-Effects at Feden-Sema Range (Guelma-Northern Algeria) from Ambient Vibration [PDF]

MATEC Web of Conferences
The Eocene Feden-Sema Range is a topographical structure located in the complex area of Mechtat El-Ababsia (Guelma) characterized by topographical site effects from an experimental investigation using earthquake and ambient vibration.
Layadi Khalissa, Tebbouche Yacine Mohamed, Chimouni Redouane, Saadi Ahmed, Beldjoudi Hamoud   +4 more
doaj   +1 more source

Looking before Leaping: Creating a Software Registry

Journal of Open Research Software, 2015
What lessons can be learned from examining numerous efforts to create a repository or directory of scientist-written software for a discipline? Astronomy has seen a number of efforts to build such a resource, one of which is the Astrophysics Source Code ...
Alice Allen, Judy Schmidt
doaj   +1 more source

Hot super-Earths stripped by their host stars

Nature Communications, 2016
Theory predicts a deficit of super-Earth sized planets, which orbit close to their host star. Here, Lundkvist et al. use data from the NASA Kepler mission to show that this deficit is also seen in observations, thereby providing new insight into ...
M. S. Lundkvist, H. Kjeldsen, S. Albrecht, G. R. Davies, S. Basu, D. Huber, A. B. Justesen, C. Karoff, V. Silva Aguirre, V. Van Eylen, C. Vang, T. Arentoft, T. Barclay, T. R. Bedding, T. L. Campante, W. J. Chaplin, J. Christensen-Dalsgaard, Y. P. Elsworth, R. L. Gilliland, R. Handberg, S. Hekker, S. D. Kawaler, M. N. Lund, T. S. Metcalfe, A. Miglio, J. F. Rowe, D. Stello, B. Tingley, T. R. White   +28 more
doaj   +1 more source

The dynamic universe: realizing the potential of classical time domain and multimessenger astrophysics

Frontiers in Astronomy and Space Sciences
In parallel with the multi-messenger revolution, major advances in time-domain astronomy across multiple science disciplines relevant to astrophysics are becoming more urgent to address.
Steve B. Howell, D. Andrew Howell, D. Andrew Howell, R. A. Street, Melinda Soares-Furtado, Brian Jackson, Thomas P. Greene   +6 more
doaj   +1 more source

Astrometry Lost and Regained

Open Astronomy, 2011
Technological and scientific developments during the past century made a new branch of astronomy flourish, i.e. astrophysics, and resulted in our present deep understanding of the whole Universe.
Høg E.
doaj   +1 more source

Electron acceleration in a coil target-driven low-β magnetic reconnection simulation

Matter and Radiation at Extremes, 2023
Magnetic reconnection driven by a capacitor coil target is an innovative way to investigate low-β magnetic reconnection in the laboratory, where β is the ratio of particle thermal pressure to magnetic pressure.
Jiacheng Yu, Jiayong Zhong, Yongli Ping, Weiming An   +3 more
doaj   +1 more source

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

Advanced Photonics Research, EarlyView.
A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma, Dapeng Wu, Ruixin Huang, Shichen Zhang, Binru Zhou, Zejun Ma, Yongqiang Sun, Junqi Liu, Ning Zhuo, Jinchuan Zhang, Shenqiang Zhai, Shuman Liu, Fengqi Liu, Manijeh Razeghi, Quanyong Lu   +14 more
wiley   +1 more source