Results 31 to 40 of about 6,042 (298)

Ichon Solar Radio Spectrogaphic System and Development of its Operation Software [PDF]

Journal of Astronomy and Space Sciences, 1997
A solar radio spectrograph for monitoring solar radio emission was installed at Ichon branch of Radio Research Laboratory in 1995. The spectrograph consists of three different antennas to sweep a wide band of frequencies in the range of 30MHz-2500MHz. We
K. S. Cho, G. H. Lee, K.-S. Kim
doaj  

Characteristics of the Accelerated Electrons Moving along the Loop Derived from Cyclical Microwave Brightenings at the Footpoints

The Astrophysical Journal Letters, 2023
Many particles are accelerated during solar flares. To understand the acceleration and propagation processes of electrons, we require the pitch-angle distributions of the particles.
Keitarou Matsumoto, Satoshi Masuda, Takafumi Kaneko   +2 more
doaj   +1 more source

Solar Radio Spikes and Type IIIb Striae Manifestations of Subsecond Electron Acceleration Triggered by a Coronal Mass Ejection

The Astrophysical Journal, 2023
Understanding electron acceleration associated with magnetic energy release at subsecond scales presents major challenges in solar physics. Solar radio spikes observed as subsecond, narrow-bandwidth bursts with Δ f / f ∼ 10 ^−3 –10 ^−2 are indicative of ...
Daniel L. Clarkson, Eduard P. Kontar, Nicole Vilmer, Mykola Gordovskyy, Xingyao Chen, Nicolina Chrysaphi   +5 more
doaj   +1 more source

Laboratory astrophysics : investigation of planetary and astrophysical maser emission

, 2013
This paper describes a model for cyclotron maser emission applicable to planetary auroral radio emission, the stars UV Ceti and CU Virginus, blazar jets and astrophysical shocks.
Ronald K, Phelps, A.D.R., Phelps, Alan, Kellett BJ, McConville SL, Phelps ADR, Speirs DC, Ronald, Kevin, McConville, S.L., Cross, Adrian, Cairns RA, Speirs, D.C., Cairns, R Alan, Cross, A.W., Cross AW, Kellett, Barry, McConville, Sandra, Cairns, R.A., Bingham, Robert, Vorgul I, Vorgul, Irena, Kellett, B.J., Ronald, K., Bingham R, Spiers DC, Vorgul, I., Speirs, David, Bingham, R.   +27 more
core   +1 more source

Case study of the mesospheric and lower thermospheric effects of solar x-ray flares: Coupled ion-neutral modelling and comparison with EISCAT and riometer measurements [PDF]

, 2008
Two case studies of upper mesospheric and lower thermospheric (UMLT) high-latitude effects of solar X-ray flares are presented. Sodankylä Ion-neutral Chemistry Model (SIC) electron density profiles agree with D-region EISCAT and riometer ...
Beharrell, M.J., A. Seppälä, Verronen, P.T., Seppälä, A., Ulich, T., C.-F. Enell, Enell, C.-F., Honary, F., P. T. Verronen, J. P. Vierinen, T. Ulich, A. Kero, E. Turunen, M. J. Beharrell, Vierinen, J.P., Turunen, E., F. Honary, Kero, A.   +17 more
core   +1 more source

Radio bursts of very short duration: Fine structure of solar flare emissions [PDF]

Geofísica Internacional, 2006
The fine time structure of sub-second radio events of solar flare emissions is described on the multichannel polarimeter of Station Basovizza at 237, 327, and 408 MHz frequencies.
R. E. Rodríguez Taboada, A. L. Méndez Berhondo   +1 more
doaj  

Latest results on Jovian disk X-rays from XMM-Newton

, 2007
We present the results of a spectral study of the soft X-ray emission (0.2–2.5 keV) from low-latitude (‘disk’) regions of Jupiter. The data were obtained during two observing campaigns with XMM-Newton in April and November 2003.
Waite Jr., J. H., Gladstone, G.R., Rodriguez, P., Branduardi-Raymont, G., Cravens, T.E., Gladstone, G. R., Ramsay, G., Soria, R., Elsner, R. F., Waite, J.H., Bhardwaj, A., Elsner, R.F., Cravens, T. E.   +12 more
core   +1 more source

Technology requirements of exploration beyond Neptune by solar sail propulsion [PDF]

, 2010
This paper provides a set of requirements for the technology development of a solar sail propelled Interstellar Heliopause Probe mission. The mission is placed in the context of other outer solar systems missions, ranging from a Kuiper Belt mission ...
Macdonald, Malcolm, Gareth Hughes, McInnes, Colin, Colin McInnes, Hughes, Gareth, Hughes, G.W., Malcolm Macdonald, Macdonald, M., McInnes, C.R.   +8 more
core   +1 more source

Fibre structure of decametric type II radio bursts as a manifestation of emission propagation effects in a disturbed near-solar plasma [PDF]

Annales Geophysicae, 2009
This paper addresses the fine structure of solar decametric type II radio bursts in the form of drifting narrowband fibres on the dynamic spectrum. Observations show that this structure appears in those events where there is a coronal mass ejection ...
A. N. Afanasiev, A. N. Afanasiev
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source