Results 71 to 80 of about 1,249,922 (287)

A Java Program Generating Barycentric Observer Velocities from JPL Ephemerides

, 2022
This works presents a program which computes velocities of an Earth-bound observatory in the reference frame of the barycenter of the solar system. It feeds from ephemerides files of the Jet Propulsion Laboratory to extract the velocity of the geocenter,
Mathar, Richard J.
core  

The VIRMOS deep imaging survey: III. ESO/WFI deep U-band imaging of the 0226-04 deep field [PDF]

, 2003
In this paper we describe the U-band imaging of the F02 deep field, one of the fields in the VIRMOS Deep Imaging Survey. The observations were done at the ESO/MPG 2.2m telescope at La Silla (Chile) using the 8k x 8k Wide-Field Imager (WFI).
A. Zanichelli, Arnaboldi, Arnouts, B. Garilli, Bertin, Bolzonella, Bondi, Bruzual, C. Adami, Castellani, Crampton, E. Bertin, E. Zucca, Ellis, G. Vettolani, G. Zamorani, H. J. McCracken, Heidt, Hogg, Kochanek, Kurucz, Lenz, M. Arnaboldi, M. Massarotti, M. Radovich, Manfroid, McCracken, McCracken, Metcalfe, O. Le Fèvre, Pickles, R. Scaramella, S. Bardelli, S. Foucaud, Schlegel, Songaila, V. Ripepi, Wolf, Y. Mellier   +38 more
core   +5 more sources

Efficient identification of broad absorption line quasars using dimensionality reduction and machine learning [PDF]

Nippon Tenmon Gakkai obun kenkyu hokoku
Broad Absorption Line Quasars (BALQSOs) represent a significant phenomenon in the realm of quasar astronomy, displaying distinct blueshifted broad absorption lines.
Wei-Bo Kao, Yanxia Zhang, Xue-Bing Wu
semanticscholar   +1 more source

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

AstraLux: the Calar Alto Lucky Imaging Camera

, 2008
AstraLux is the Lucky Imaging camera for the Calar Alto 2.2-m telescope, based on an electron-multiplying high speed CCD. By selecting only the best 1-10% of several thousand short exposure frames, AstraLux provides nearly diffraction limited imaging ...
Brandner, Wolfgang, Henning, Thomas, Hippler, Stefan, Hormuth, Felix, Wagner, Karl   +4 more
core   +1 more source

Bioresorbable Mo–W Electrodes: Toward an Extended Operational Lifetime Through Controlled Alloying and Oxide Coating Engineering

Advanced Materials Interfaces, EarlyView.
Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes, Filippo Franceschini, Kitty Baert, Jon Ustarroz, I. Taurino   +4 more
wiley   +1 more source

A Survey of Galaxy Pairs in the SDSS Photometric Images based on Faster-RCNN

The Astronomical Journal
Galaxy pairs hold significant importance in understanding the evolution of galaxies, and the extensive search for a large sample of galaxy pairs is meaningful.
Chen-hui Shi, Hai-feng Yang, Jiang-hui Cai, Li-chan Zhou, Yan-ting He, Mei-hong Su, Xu-jun Zhao, Ya-ling Xun   +7 more
doaj   +1 more source

Gravitational wave matched filtering by quantum Monte Carlo integration and quantum amplitude amplification

Physical Review Research, 2022
The speedup of heavy numerical tasks by quantum computing is now actively investigated in various fields including data analysis in physics and astronomy. In this paper, we propose a quantum algorithm for matched filtering in gravitational wave (GW) data
Koichi Miyamoto, Gonzalo Morrás, Takahiro S. Yamamoto, Sachiko Kuroyanagi, Savvas Nesseris   +4 more
doaj   +1 more source

MDia and POTS - The Munich Difference Imaging Analysis for the pre-OmegaTranS Project

, 2011
We describe the Munich Difference Imaging Analysis pipeline that we developed and implemented in the framework of the Astro-WISE package to automatically measure high precision light curves of a large number of stellar objects using the difference ...
Koppenhoefer, J., Riffeser, A., Saglia, R. P.   +2 more
core   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source