Results 21 to 30 of about 149,506 (246)

Fast Infrared Detector for Time-Domain Astronomy

Instruments
Multi-messenger astronomy and time-domain astronomy are strongly linked even if they do not have the same objectives. Multi-messenger astronomy is an astrophysical observation approach born by the simultaneous, even if casual, detection of a few events ...
Alessandro Drago
doaj   +1 more source

DECam Multimessenger Astrophysics Pipeline. I. From Raw Data to Single-exposure Candidates

The Astronomical Journal
We introduce a pipeline that performs rapid image subtraction and source selection to detect transients, with a focus on identifying gravitational-wave optical counterparts using the Dark Energy Camera (DECam). In this work, we present the pipeline steps
Shenming Fu, Thomas Matheson, Aaron Meisner, Yuanyuan Zhang, Sebastián Vicencio, Destry Saul   +5 more
doaj   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Infrared to millimetre photometry of ultra-luminous IR galaxies: new evidence favouring a 3-stage dust model [PDF]

, 2001
Infrared to millimetre spectral energy distributions have been obtained for 41 bright ultra-luminous infrared galaxies. The observations were carried out with ISOPHOT between 10 and 200 micron and supplemented for 16 sources with SCUBA at 450 and 850 ...
Allen, B. Schulz, Bianchi, Boksenberg, Chini, Chini, Chini, Chini, Clavel, Clements, Colina, Condon, Crawford, D. Lemke, de Grijp, Downes, Dubinski, Duc, Dunne, Fried, Gao, Genzel, Genzel, H. Hippelein, Haas, Haas, Haas, Herbst, Hildebrand, Hill, Holland, I. Coulson, Imanishi, K. Wilke, Kessler, Kim, Klaas, Klaas, Krabbe, Krügel, Lagache, Laurent, Lemke, Lisenfeld, Lutz, Lutz, M. Albrecht, M. Haas, Marx, Mathis, Mattila, Mattila, Mauersberger, Mirabel, Murphy, Pier, Pier, R. Chini, Rigopoulou, Rigopoulou, Risaliti, Rowan-Robinson, Rowan-Robinson, Rowan-Robinson, S. A. H. Müller, Sanders, Sanders, Sanders, Sanders, Sanders, Scoville, Solomon, Stickel, Thuma, Tran, U. Klaas, Veilleux, Veilleux, Vignati   +78 more
core   +2 more sources

Pushing The Limits of Mid-Wave Infrared Detection with Superconducting Nanowire Single-Photon Detectors [PDF]

EPJ Web of Conferences
Extending single-photon detection capabilities into the mid- infrared is expected to have far-reaching implications for long-wavelength quantum optics, quantum and free-space communication, astronomy, environmental monitoring, and fundamental molecular ...
Oksenberg Eitan, Gourgues Ronan, Meder Steffen, Zöllner Jona, Los Johannes W. N., Finley Jonathan, Castaneda Mario   +6 more
doaj   +1 more source

Design of the Optical System for a Protomodel of Space Infrared Cryogenic System [PDF]

Journal of Astronomy and Space Sciences, 2005
Many technical challenges are being tried for a large space infrared telescope, which is one of the major objectives of the Strategic Technology Road Map (STRM) of KASI (Korea Astronomy and Space Science Institute).
Dae-Hee Lee, Soojong Park, In-Soo Yuk, Uk-Won Nam, Ho Jin, Sungho Lee, Jeong-Yeol Han, Hyung Suk Yang, Dong Lak Kim, Geon-Hee Kim, Seong-Je Park, Byung-Hyuk Kim, Han Jeong   +12 more
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Analysis of Dark Data of the PICNIC IR Arrays in the CIBER [PDF]

Journal of Astronomy and Space Sciences, 2010
We have measured and analyzed the dark data of two PICNIC IR arrays (P574 and P560) obtained through the Cosmic Infrared Background ExpeRiment (CIBER).
D. H. Lee, M. G. Kim, K. Tsumura, M. Zemcov, U. W. Nam, J. Bock, J. Battle, V. Hristov, T. Renbarger, T. Matsumoto, I. Sullivan, L. R. Levenson, P. Mason, S. Matsuura, G. H. Kim   +14 more
doaj   +1 more source

Flexible and High‐Performance Perovskite‐Polymer Composites for Dual X‐Ray and Proton Direct Detection

Advanced Optical Materials, EarlyView.
A polymer–perovskite composite obtained by mechanochemical synthesis enables thick, tunable active layers for efficient absorption of highly penetrating ionizing radiation. Vertical‐electrode detectors achieve low X‐ray detection limits and high sensitivity direct 5 MeV proton sensing.
Camilla Bordoni, Bas A. H. Huisman, Joost W. C. Reinders, Ilaria Fratelli, Massimo Chiari, Laura Basiricò, Henk J. Bolink, Andrea Ciavatti, Michele Sessolo, Beatrice Fraboni   +9 more
wiley   +1 more source

NASA needs and trends in cryogenic cooling [PDF]

, 1983
Projected NASA needs in spaceborne cryogenic systems and recent results of NASA cryogenic cooling technology efforts in infrared astronomy, X-ray astronomy, gamma ray astronomy, liquid helium and space stations are ...
Sherman, A.
core   +1 more source