Results 21 to 30 of about 81,210 (254)

Comparison of beam combiners for a synthetic aperture imaging telescope [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
Future astronomical space missions will comprise a constellation of several optical telescopes to detect exo-planets by interferometric nulling of starlight.
van der Avoort Casper, Pereira Silvania F., Braat Joseph J.M., den Herder Jan-Willem   +3 more
doaj   +1 more source

Optimization of grazing incidence mirrors and its application to surveying X-ray telescopes

, 2001
Grazing incidence mirrors for X-ray astronomy are usually designed in the parabola-hyperbola (Wolter I) configuration. This design allows for optimal images on-axis, which however degrade rapidly with the off-axis angle.
Aschenbach, Bavdaz, Borgani, Burrows, Campana, Cash, Cash, Citterio, Citterio, Citterio, Ghigo, Giacconi, Gioia, Giommi, Harvey, Lazzati, Nariai, Nariai, P. Conconi, Predehl, S. Campana, Serlemitsos, Tananbaum, Trümper, Turner, VanSpeybroeck, VanSpeybroeck, Voges, Werner, Wolter, Wolter   +30 more
core   +1 more source

Perspectives on Gamma-Ray Burst Physics and Cosmology with Next Generation Facilities [PDF]

, 2016
High-redshift Gamma-Ray Bursts (GRBs) beyond redshift $\sim6$ are potentially powerful tools to probe the distant early Universe. Their detections in large numbers and at truly high redshifts call for the next generation of high-energy wide-field ...
Amati, Lorenzo, Cannizzo, John K., Cordier, Bertrand, Gehrels, Neil, Ghirlanda, Giancarlo, Götz, Diego, Produit, Nicolas, Qiu, Yulei, Sun, Jianchao, Tanvir, Nial R., Wei, Jianyan, Yuan, Weimin, Zhang, Chen   +12 more
core   +2 more sources

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

PSF-based Analysis for Detecting Unresolved Wide Binaries

The Astrophysical Journal Supplement Series, 2023
Wide binaries play a crucial role in analyzing the birth environment of stars and the dynamical evolution of clusters. When wide binaries are located at greater distances, their companions may overlap in the observed images, becoming indistinguishable ...
You Wu, Jiao Li, Chao Liu, Yi Hu, Long Xu, Tanda Li, Xuefei Chen, Zhanwen Han   +7 more
doaj   +1 more source

Extreme multiplex spectroscopy at wide-field 4-m telescopes

, 2008
We describe the design and science case for a spectrograph for the prime focus of classical 4-m wide-field telescopes that can deliver at least 4000 MOS slits over a 1 degree field.
Content, Robert, Shanks, Tom
core   +1 more source

Understanding the Neutron Star Population with the SKAO telescopes

The Open Journal of Astrophysics
The known population of non-accreting neutron stars is ever growing and currently consists of more than 3500 sources. Pulsar surveys with the SKAO telescopes will greatly increase the known population, adding radio pulsars to every subgroup in the radio ...
Lina Levin, Manjari Bagchi, Marta Burgay, Adam. T. Deller, Vanessa Graber, Andrei Igoshev, Michael Kramer, Duncan Lorimer, Bettina Posselt, Thiagaraj Prabu, Kaustubh Rajwade, Nanda Rea, Benjamin Stappers, Thomas. M. Tauris, Patrick Weltevrede   +14 more
doaj   +4 more sources

Blind Search for 21-cm Absorption Systems in New Generation Chinese Radio Telescopes

, 2017
Neutral hydrogen clouds are known to exist in the Universe, however their spatial distributions and physical properties are poorly understood. Such missing information can be studied by the new generation Chinese radio telescopes through a blind ...
Chen, Xuelei, Li, Di, Pen, Ue-Li, Yu, Hao-Ran, Zhang, Tong-Jie   +4 more
core   +2 more sources

The STELLA Robotic Observatory on Tenerife

Advances in Astronomy, 2010
The Astrophysical Institute Potsdam (AIP) and the Instituto de Astrofísica de Canarias (IAC) inaugurated the robotic telescopes STELLA-I and STELLA-II (STELLar Activity) on Tenerife on May 18, 2006.
Klaus G. Strassmeier, Thomas Granzer, Michael Weber, Manfred Woche, Emil Popow, Arto Järvinen, Janos Bartus, Svend-Marian Bauer, Frank Dionies, Thomas Fechner, Wilbert Bittner, Jens Paschke   +11 more
doaj   +1 more source

EXPLANATION: Exoplanet and Transient Event Investigation Project—Optical Facilities and Solutions

Photonics, 2022
Over the past decades, the achievements in astronomical instrumentation have given rise to a number of novel advanced studies related to the analysis of large arrays of observational data.
Gennady Valyavin, Grigory Beskin, Azamat Valeev, Gazinur Galazutdinov, Sergei Fabrika, Iosif Romanyuk, Vitaly Aitov, Oleg Yakovlev, Anastasia Ivanova, Roman Baluev, Valery Vlasyuk, Inwoo Han, Sergei Karpov, Vyacheslav Sasyuk, Alexei Perkov, Sergei Bondar, Faig Musaev, Eduard Emelianov, Timur Fatkhullin, Sergei Drabek, Vladimir Shergin, Byeong-Cheol Lee, Guram Mitiani, Tatiana Burlakova, Maksim Yushkin, Eugene Sendzikas, Damir Gadelshin, Lisa Chmyreva, Anatoly Beskakotov, Vladimir Dyachenko, Denis Rastegaev, Arina Mitrofanova, Ilia Yakunin, Kirill Antonyuk, Vladimir Plokhotnichenko, Alexei Gutaev, Nadezhda Lyapsina, Vladimir Chernenkov, Anton Biryukov, Evgenij Ivanov, Elena Katkova, Alexander Belinski, Eugene Sokov, Alexander Tavrov, Oleg Korablev, Myeong-Gu Park, Vladislav Stolyarov, Victor Bychkov, Stanislav Gorda, A. A. Popov, A. M. Sobolev   +50 more
doaj   +1 more source