Results 61 to 70 of about 11,113 (261)

Detection of a Magnetic Discontinuity in the Upper Solar Chromosphere Associated with a Coronal Loop Brightening Observed by CLASP2.1

The Astrophysical Journal
We report the first detection of a magnetic discontinuity in the upper solar chromosphere associated with a coronal loop brightening. Our findings are based on novel observations obtained by the Chromospheric LAyer SpectroPolarimeter (CLASP2.1 ...
Donguk Song, Ryohko Ishikawa, David E. McKenzie, Javier Trujillo Bueno, Frédéric Auchère, Ryouhei Kano, Amy Winebarger, Takenori J. Okamoto, Laurel A. Rachmeler, Ken Kobayashi, Genevieve D. Vigil, Adam R. Kobelski, Christian Bethge, Eun-Kyung Lim, Luca Belluzzi, Ernest Alsina Ballester, Tanausú del Pino Alemán, Jiří Štěpán   +17 more
doaj   +1 more source

Tracing field lines that are reconnecting, or expanding, or both

Frontiers in Astronomy and Space Sciences
The explosive release of energy in the solar atmosphere is driven magnetically, but the mechanisms that trigger the onset of the eruption remain controversial.
Jiong Qiu
doaj   +1 more source

Solar XUV limb brightening observations and interpretation [PDF]

, 1969
Solar XUV limb brightening observations and interpretation of lithium like ...
Withbroe, G. L.
core  

What determines the radio polar brightening?

, 2005
In order to explain the bright patches of emission near the poles of 17 GHz solar maps, we have applied a previously developed atmospheric model based on radio observations.
A. V. R. Silva, J. E. R. Costa, C. L. Selhorst   +2 more
core   +1 more source

Oxidation‐Induced Internal Chemical Patterning in Copper–Gold Nanoalloys

Small, EarlyView.
Surface oxidation suppresses Au surface segregation and redirects Au transport to twin boundaries, replacing conventional core–shell formation with internal chemical patterning. Driven by Cu–Au mixing thermodynamics, defect‐mediated uphill diffusion creates alternating Au‐rich and Cu‐rich lamellae, revealing oxidation as a chemical pump for bulk ...
Zhikang Zhou, Hanlei Zhang, Dongxiang Wu, Jianyu Wang, Xiaobo Chen, Chaoran Li, Shan Yan, Jing Li, Adrian Hunt, Iradwikanari Waluyo, Chuanjian Zhong, Guangwen Zhou   +11 more
wiley   +1 more source

Early re-brightening of the afterglow of GRB 050525a

, 2005
4 pages, 2 figures, submitted to A&AWe present time resolved optical data acquired by the TAROT automated observatory on the afterglow of GRB 050525a from 6 to 136 minutes after the GRB.
Damerdji, Y., Y. Damerdji, G. Stratta, Stratta, G., Klotz, A., F. Malacrino, J. L. Atteia, R. Behrend, M. Boër, Malacrino, F., A. Klotz, Atteia, J. L., Boer, M., Behrend, R.   +13 more
core   +1 more source

Longitudinal development of a substorm brightening arc [PDF]

, 2009
We present simultaneous THEMIS-ground observations of longitudinal (eastward) extension of a substorm initial-brightening arc at Gillam (magnetic latitude: 65.6°) at 08:13 UT on 10 January 2008.
Nakajima, A., Aslaksen, Torsten, Mende, S., Greffen, M., Shiokawa, K., Nomura, R., McFadden, J., V. Angelopoulos, S. B. Mende, Donovan, E., Glassmeier, K. H., Ieda, A., Aslaksen, T., K. Sakaguchi, Y. Miyashita, T. Aslaksen, A. Nakajima, Spanswick, E., Glassmeier, K., Sakaguchi, K., R. Nomura, M. Greffen, J. McFadden, Miyashita, Y., Angelopoulos, V., E. Donovan, A. Ieda, E. Spanswick, Glassmeier, K.-H., Mende, S. B., K.-H. Glassmeier, K. Shiokawa   +31 more
core   +2 more sources

A Multi‐Analytical Campaign on Reused Medieval Musical Parchment From the Archivio di Stato di Siena (Italy)

X-Ray Spectrometry, EarlyView.
ABSTRACT In this study, a non‐invasive, multi‐analytical approach combining hypercolorimetric multispectral imaging (HMI), stereomicroscopy, X‐ray fluorescence (XRF) spectroscopy, principal component analysis (PCA) and X‐ray radiography (RX) is used to investigate three reused musical parchment fragments dating from the late 14th or early 15th century ...
Mario Gentile, Chiara Delledonne, Michela Albano, Eleonora Verni, Antonio Calvia, Chaehoon Lee, Marco Malagodi, Giacomo Fiocco   +7 more
wiley   +1 more source

Test of image under brightening and darkening.

, 2015
(a) Brightened cipher-image of Lena, (b) decrypted image under brightening, (c) darkened cipher-image of Lena, (d) decrypted image under darkening.
Jürgen Kurths (313519), Xiangjun Wu (715480), Yang Li (7082)   +2 more
core   +1 more source

Radiation Brightening from Virus-like Particles

, 2020
Concentration quenching is a well-known challenge in many fluorescence imaging applications. Here we show that the optical emission from hundreds of chromophores confined onto the surface of a virus particle 28 nm diameter can be recovered under pulsed ...
Tsvetkova, Irina B., Sushma, Arathi Anil, Schaich, William L., Dragnea, Bogdan G, Wang, Joseph Che-Yen   +4 more
core   +1 more source