Results 61 to 70 of about 264,390 (347)

Chandra's Close Encounter with the Disintegrating Comets 73P/2006 (Schwassmann--Wachmann--3) Fragment B and C/1999 S4 (LINEAR) [PDF]

, 2008
On May 23, 2006 we used the ACIS-S instrument on the Chandra X-ray Observatory (CXO) to study the X-ray emission from the B fragment of comet 73P/2006 (Schwassmann-Wachmann 3) (73P/B).
Arnaud, Bodewits, Bodewits, Bodewits, Bohnhardt, C. M. Lisse, Cravens, D. Bodewits, D. J. Christian, Festou, Flammer, Haser, Horanyi, Ip, Johnstone, K. Dennerl, Kharchenko, Koutroumpa, Lisse, Lisse, Lisse, McCammon, Pepino, Reach, S. J. Wolk, Sasseen, Schleicher, Schwadron, Villanueva, Weaver   +29 more
core   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Baseline monitoring of volcanic regions with little recent activity: application of Sentinel-1 InSAR to Turkish volcanoes

Journal of Applied Volcanology, 2021
Volcanoes have dormancy periods that may last decades to centuries meaning that eruptions at volcanoes with no historical records of eruptions are common.
Juliet Biggs, Fikret Dogru, Ayse Dagliyar, Fabien Albino, Stanley Yip, Sarah Brown, Nantheera Anantrasirichai, Gökhan Atıcı   +7 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

Combinatorial screening of halide perovskite thin films and solar cells by mask-defined IR laser molecular beam epitaxy

Science and Technology of Advanced Materials, 2017
As an extension of combinatorial molecular layer epitaxy via ablation of perovskite oxides by a pulsed excimer laser, we have developed a laser molecular beam epitaxy (MBE) system for parallel integration of nano-scaled thin films of organic–inorganic ...
Kazuhiro Kawashima, Yuji Okamoto, Orazmuhammet Annayev, Nobuo Toyokura, Ryota Takahashi, Mikk Lippmaa, Kenji Itaka, Yoshikazu Suzuki, Nobuyuki Matsuki, Hideomi Koinuma   +9 more
doaj   +1 more source

Evolution of the Dust Coma in Comet 67P/Churyumov-Gerasimenko Before 2009 Perihelion

, 2011
Comet 67P/Churyumov-Gerasimenko is the main target of ESA's Rosetta mission and will be encountered in May 2014. As the spacecraft shall be in orbit the comet nucleus before and after release of the lander {\it Philae}, it is necessary necessary to know ...
Agarwal, Agarwal, A’Hearn, Combi, Crifo, Davidsson, Foster, Fulle, Fulle, G. P. Tozzi, Glassmeier, H. Boehnhardt, Hadamcik, Hadamcik, Ishiguro, J. Licandro, J. Stüwe, J.-B. Vincent, Kelley, Kelley, Kidger, Kidger, L. Kolokolova, Lamy, Lamy, Lamy, Lara, Lara, Levasseur-Regourd, Moreno, P. Patriarchi, R. Schulz, Schleicher, Schleicher, Schulz, Tozzi, Tozzi, Tubiana, Tubiana, Weiler   +39 more
core   +1 more source

Spectroscopic Observations of New Oort Cloud Comet 2006 VZ13 and Four Other Comets [PDF]

, 2009
Spectral data are presented for comets 2006 VZ13 (LINEAR), 2006 K4 (NEAT), 2006 OF2 (Broughton), 2P/Encke, and 93P/Lovas I, obtained with the Cerro-Tololo Inter-American Observatory 1.5-m telescope in August 2007.
A. M. Gilbert, Arvesen, A’Hearn, A’Hearn, Cochran, Cochran, Cochran, E. Unda-Sanzana, Fink, Fink, Fink, Haser, Newburn, O. Vaduvescu, P. A. Wiegert, Sposetti, Storrs, Tatum, Tody   +18 more
core   +1 more source

The European Space Agency’s Comet Interceptor lies in wait

Nature Communications, 2019
The European Space Agency (ESA) recently selected Comet Interceptor as its first ‘fast’ (F-class) mission. It will be developed rapidly to share a launch with another mission and is unique, as it will wait in space for a yet-to-be-discovered comet.
C. Snodgrass, G. Jones
semanticscholar   +1 more source

Evidence for the formation of comet 67P/Churyumov-Gerasimenko through gravitational collapse of a bound clump of pebbles [PDF]

, 2017
The processes that led to the formation of the planetary bodies in the Solar system are still not fully understood. Using the results obtained with the comprehensive suite of instruments onboard the European Space Agency's Rosetta mission, we present ...
J. Blum, B. Gundlach, M. Krause, M. Fulle, A. Johansen, J. Agarwal, I. V. Borstel, Xian Shi, Xuanyu Hu, M. Bentley, F. Capaccioni, L. Colangeli, V. Corte, N. Fougere, S. Green, S. Ivanovski, T. Mannel, S. Merouane, A. Migliorini, A. Rotundi, R. Schmied, C. Snodgrass   +21 more
semanticscholar   +1 more source

Volatile Species in Comet 67P/Churyumov-Gerasimenko: Investigating the Link from the ISM to the Terrestrial Planets [PDF]

ACS Earth and Space Chemistry, 2019
Comets contain abundant amounts of organic and inorganic species. Many of the volatile molecules in comets have also been observed in the interstellar medium and some of them even with similar relative abundances, indicating formation under similar ...
M. Rubin, D. Bekaert, M. Broadley, M. Drozdovskaya, S. Wampfler   +4 more
semanticscholar   +1 more source