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The work concerns a problem of electron-induced contaminant at relatively low latitudes to high-energy astrophysical measurements on board the low-orbiting satellites. We show the results of a statistical analysis of the energetic electron…

空间物理 · 物理学 2014-10-17 Alla V. Suvorova , Alexei V. Dmitriev , Chien-Ming Huang

Observations of energetic electrons (10 - 300 keV) by NOAA/POES and DMSP satellites at heights <1000 km during the period from 1999 to 2010 allowed finding abnormal intense fluxes of ~10^6 - 10^7 cm-2 s-1 sr-1 for quasi-trapped electrons…

We report simultaneous observations of intense fluxes of quasi-trapped energetic electrons and substantial enhancements of ionospheric electron concentration (EC) at low and middle latitudes over Pacific region during geomagnetic storm on…

空间物理 · 物理学 2013-01-14 A. V. Suvorova , L. -C. Tsai , A. V. Dmitriev

The results of observation of short-term variations of high-energy electron flux in the outer radiation belt, obtained in ARINA satellite experiment (2006 - 2016), are presented. Scintillation spectrometer ARINA on board the Resurs-DK1…

高能天体物理现象 · 物理学 2017-01-16 S. V. Koldashov , S. Yu. Aleksandrin , N. D. Eremina

At energies above a few TeV, no measurements of the cosmic-ray electron spectrum exist yet. By considering the similarity of air showers induced by electrons and gamma rays as seen by ground-based arrays, we use published limits on…

高能天体物理现象 · 物理学 2009-12-03 Matthew D. Kistler , Hasan Yuksel

Spacecraft observations of high-energy electron flux enhancement up to 125 keV at Earth's magnetopause are typically linked to the magnetic reconnection. Here, we report the first ever observation of prolonged electron flux enhancement…

空间物理 · 物理学 2024-12-05 Shubhangi Lagad , Amar Kakad , Bharati Kakad

Enhancement of the electron fluxes in the inner radiation belt, which is induced by the powerful North West Cape (NWC) very-low-frequency (VLF) transmitter, have been observed and analyzed by several research groups. However, all of the…

空间物理 · 物理学 2016-11-23 Zhenxia Zhang , Xinqiao Li , Chenyu Wang , Lunjin Chen

Electrons in the Earth's radiation belts can be categorized into three populations: precipitating, quasi-trapped and trapped. We use data from the DEMETER and SAMPEX missions and from ground-based neutron monitors (NM) and sunspot…

Using the observations of the EPT (Energetic Particle Telescope) onboard the satellite PROBA-V we study the dynamics of inner and outer belt electrons from 500 keV to 8 MeV during quiet periods and geomagnetic storms. This high…

空间物理 · 物理学 2019-05-01 Viviane Pierrard , Graciela Lopez Rosson , Edith Botek

Near-equatorial great enhancements of the quasi-trapped >30 keV electrons at low-altitudes are studied during strong geomagnetic storms. We have found that the transient phenomenon often began at the morning and was capable to live several…

空间物理 · 物理学 2013-01-14 A. V. Suvorova , A. V. Dmitriev , L. -C. Tsai

The strong variations of energetic electron fluxes in the Earth's inner magnetosphere are notoriously hard to forecast. Developing accurate empirical models of electron fluxes from low to high altitudes at all latitudes is therefore useful…

The GOES X1.5 class flare that occurred on August 30,2002 at 1327:30 UT is one of the few events detected so far at submillimeter wavelengths. We present a detailed analysis of this flare combining radio observations from 1.5 to 212 GHz (an…

太阳与恒星天体物理 · 物理学 2015-05-13 C. G. Gimenez de Castro , G. Trottet , A. Silva-Valio , S. Krucker , J. E. R. Costa , P. Kaufmann , E. Correia , H. Levato

Orbital experiment ARINA on the board of Russian satellite Resurs-DK1 launched in 2006 developed to study charged particle flux (electrons E ~ 3 - 30MeV , protons E ~ 30 - 100MeV ) in near-Earth space, especially high-energy electron…

高能天体物理现象 · 物理学 2017-02-12 T. Zharaspayev , S. Aleksandrin , A. M. Galper , S. Koldashov

Measurements of the diffuse extragalactic gamma-ray background (EGRB) are complicated by a strong Galactic foreground. Estimates of the EGRB flux and spectrum, obtained by modeling the Galactic emission, have produced a variety of…

天体物理学 · 物理学 2009-11-10 Uri Keshet , Eli Waxman , Abraham Loeb

We analyze variations of high-energy charged particle populations filling various magnetospheric regions under, inside, and outside of the Van Allen inner and outer electron radiation belts in May 2009. The study is based on the…

Based on tests of a tentative detector for observing geo-synchrotron hard X-rays generated by primary electrons, we study the feasibility of probing cosmic electrons above a few TeV to over 10 TeV. Such high energy electrons are expected to…

高能天体物理现象 · 物理学 2015-03-19 Y. Akaike , K. Kasahara , R. Nakamura , S. Ozawa , Y. Shimizu , S. Torii , K. Yoshida , T. Tamura , S. Udo

We show fifty-seven enhanced radiation level events taken from new measurements on commercial altitude (greater than 9 km) aircraft that are analogous to planes flying through radiation clouds. More accurately, the plane is likely to be…

空间物理 · 物理学 2022-09-14 W. Kent Tobiska , Alexa J. Halford , Steven K. Morley

Low energy galactic cosmic rays as well as particles accelerated to high energies either at the solar surface or in the interplanetary medium have access to the atmosphere above a given position on the Earth depending upon the state of the…

地球与行星天体物理 · 物理学 2013-03-19 K. Kudela , R. Bucik

Galactic microquasars are certainly one of the most recent additions to the field of high energy astrophysics and have attracted increasing interest over the last decade. However, the high energy part of the spectrum of microquasars is the…

天体物理学 · 物理学 2007-05-23 Josep M. Paredes
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