Results 61 to 70 of about 630 (149)

Automatic detection of limb prominences in 304 A EUV images [PDF]

, 2010
A new algorithm for automatic detection of prominences on the solar limb in 304 A EUV images is presented, and results of its application to SOHO/EIT data discussed.
Labrosse, N., Dalla, S., Marshall, S.
core   +1 more source

Microwave imaging of quasi-periodic pulsations at flare current sheet. [PDF]

Nat Commun, 2022
Kou Y, Cheng X, Wang Y, Yu S, Chen B, Kontar EP, Ding M.   +6 more
europepmc   +1 more source

A DESIGN STUDY AND SOME EXPERIMENTS OF DIGITAL CORRELATOR BACKEND FOR λ 8- CM RADIOHELIOGRAPH AT TOYOKAWA [PDF]

1982-03-25A project is proposed to improve the time resolution and the dynamic range of the λ 8-cm radioheliograph system at Toyokawa. The main task of this project is to replace the backend of the present λ 8-cm radioheliograph with a digital correlator
MORITA, Koh-Ichiro, ENOME, Shinzo, SHIBASAKI, Kiyoto, NISHIO, Masanori, TSUKIJI, Yoshio, 59160, 59162, 59161, 59164, 59163   +9 more
core  

RHESSI and radio imaging observations of microflares

, 2005
International audienceWe present an analysis of five microflares, three observed simultaneously by RHESSI in hard X-rays and Nobeyama RadioHeliograph (NoRH) in microwaves (17 GHz) and two observed by RHESSI and Nancay RadioHeliograph (NRH) at metric ...
Garaimov, V. I., Kundu, M. R., Grigis, P. C., Schmahl, E. J., Trottet, Gérard   +4 more
core   +1 more source

Defining the Middle Corona. [PDF]

Sol Phys, 2023
West MJ, Seaton DB, Wexler DB, Raymond JC, Del Zanna G, Rivera YJ, Kobelski AR, Chen B, DeForest C, Golub L, Caspi A, Gilly CR, Kooi JE, Meyer KA, Alterman BL, Alzate N, Andretta V, Auchère F, Banerjee D, Berghmans D, Chamberlin P, Chitta LP, Downs C, Giordano S, Harra L, Higginson A, Howard RA, Kumar P, Mason E, Mason JP, Morton RJ, Nykyri K, Patel R, Rachmeler L, Reardon KP, Reeves KK, Savage S, Thompson BJ, Van Kooten SJ, Viall NM, Vourlidas A, Zhukov AN.   +41 more
europepmc   +1 more source

High Dynamic Range Images of the Solar Corona Between 150 and 450 MHz

, 2009
International audienceWe present radio images of the quiet Sun obtained with the Nançay Radioheliograph between 150 and 450 MHz, using the latest improvements in the instrument and in the data processing techniques. We emphasize new aspects of the corona
Chambe, Gilbert, Mercier, Claude, Claude Mercier, Gilbert Chambe   +3 more
core   +1 more source

Coronal structures observed at metric wavelengths with the Nançay radioheliograph

, 1985
We present and discuss two-dimensional maps of the Sun at 169 MHz, obtained with the Nançay radioheliograph used as an Earth rotation aperture synthesis instrument. The maps have been computed on the basis of about 6 hr of one-dimensional observations by
Lantos, P., Alissandrakis, C.E., Nicolaidis, E.   +2 more
core   +1 more source

Australian Journal of Physics Astrophysical Supplements

, 1975
The 80 MHz survey of radio sources made with the Culgoora radioheliograph has been extended by a further 1748 previously catalogued sources in the declination range -48 to +35 Positions, flux densities and beam broadening measured with this 3' 7 arc ...
OB Slee, CS Higgins
core   +1 more source

The role and contribution of magnetic fields, characterized via their magnetic flux, to the statistical structuring of the solar atmosphere. [PDF]

Sci Rep, 2022
Li KJ, Xu JC, Feng W.
europepmc   +1 more source

PHASE STABILITY OF THE NEW LOCAL OSCILLATOR SYSTEM FOR THE λ 8-CM RADIOHELIOGRAPH AT TOYOKAWA [PDF]

1979-03Phase stability of the new local oscillator system for the λ 8-cm radioheliograph at Toyokawa is studied experimentally . The phase stability is expected to be kept within 5° rms for a month, if the temperature, DC supply voltage and reference ...
NAITO, Yoshikazu, 59420
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