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The Planck collaboration has measured the temperature and polarization of the cosmic microwave background well enough to determine the locations of eight peaks in the temperature (TT) power spectrum, five peaks in the polarization (EE)…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-27 Zhen Pan , Lloyd Knox , Brigid Mulroe , Ali Narimani

The direct measurements of electrons and positrons over the last 30 years, corrected for the solar effect in the force-field approximation, are considered. The resulting overall electron spectrum may be fitted with a single power law above…

Astrophysics · Physics 2011-08-19 Diego Casadei , Veronica Bindi

The method of measurement of Doppler frequency shift of ionospheric signal - HF Doppler technique - is one of well-known and widely used methods of ionosphere research. It allows to research various disturbances in the ionosphere. There are…

Geophysics · Physics 2014-10-15 Inna R. Petrova , Vladimir V. Bochkarev , Ruslan R. Latypov

The 11/5/2011 Lorca, Spain earthquake (Mw5.2) and related seismicity produced extensive damage in the town of Lorca and vicinity. During these earthquakes, evidence of rotations and permanent deformations in structures were observed. To…

Geophysics · Physics 2014-02-21 Miguel Angel Santoyo

A search for the possible precursors of an earthquake and its effect on the data series of diverse geophysical parameters has been made in the mountain of Northern Tien Shan. The complex installation included the NM64 type neutron…

Geophysics · Physics 2013-01-30 N. M. Salikhov , A. L. Shepetov , A. P. Chubenko , O. N. Kryakunova , G. D. Pak

Along the I24, I27 and I31 flybys of Io (1999-2001), the Energetic Particle Detector (EPD) onboard the Galileo spacecraft observed localised regions of energetic protons losses (155 keV-1250 keV). Using back-tracking particle simulations…

Earth and Planetary Astrophysics · Physics 2024-07-03 H. L. F. Huybrighs , C. P. A. van Buchem , A. Blöcker , V. Dols , C. F. Bowers , C. M. Jackman

It has been known that discrete aurora suddenly intensifies and deforms from an arc-like to a variety of wavy/vortex structures, especially during a substorm period. The instability of Alfv$\acute{\rm e}$n waves reflected from the…

Space Physics · Physics 2016-03-21 Yasutaka Hiraki

The nuclear dependence of the inclusive inelastic electron scattering cross section (the EMC effect) has been measured for the first time in $^{10}$B and $^{11}$B. Previous measurements of the EMC effect in $A \leq 12$ nuclei showed an…

August 1 to November 15, 2016 period was characterized by the presence of Corotating Interaction Regions (CIRs) and a few weak Coronal Mass Ejections (CMEs) in the heliosphere. In this study we show recurrent energetic electron and proton…

Solar and Stellar Astrophysics · Physics 2020-10-12 C. Krishnaprasad , Smitha V. Thampi , Anil Bhardwaj , Christina O. Lee , K. Kishore Kumar , Tarun K. Pant

We have derived background corrected intensities of 3-50 MeV galactic electrons observed by Voyager 1 as it passes through the heliosheath from 95 to 122 AU. The overall intensity change of the background corrected data from the inner to…

Space Physics · Physics 2017-08-09 W. R. Webber , N. Lal , B. Heikkila

Unipolar pre-seismic magnetic field pulses have been observed first by Bleier et al. (2009) and Villante et al. (2010) and Nenovski et al. (2013). In the present study a detailed analysis of the pulses is conducted looking for signatures of…

Geophysics · Physics 2016-02-10 Petko Nenovski

Earthquakes cannot be predicted with precision, but algorithms exist for intermediate-term middle range prediction of main shocks above a pre-assigned threshold, based on seismicity patterns. Few years ago, a first attempt was made in the…

Geophysics · Physics 2017-03-07 G. F. Panza , A. Peresan , F. Sansò , M. Crespi , A. Mazzoni , A. Nascetti

The acoustic emission activity associated with recent rock fracture experiments under different conditions has indicated that some features of event-event triggering are independent of the details of the experiment and the materials used…

Geophysics · Physics 2018-01-17 Jordi Baró , Jörn Davidsen

We present recent data of electric signals detected at the Earth's surface, which confirm the earlier finding [Phys. Rev. E 73, 031114 (2006)] that the value of the entropy in natural time as well as its value under time reversal are…

Statistical Mechanics · Physics 2007-05-23 P. A Varotsos , N. V. Sarlis , E. S. Skordas , M. S. Lazaridou

The site effect is usually associated with local geological conditions, which increase or decrease the level of shaking compared with standard attenuation relations. We made an attempt to see in the macroseismic data of Italy some other…

Geophysics · Physics 2015-05-19 G. Molchan , T. Kronrod , G. F. Panza

The recovery of cosmic ray protons of energy ~150-250 MeV/nuc in solar cycle #23 from 2004 to 2010 has been followed at the Earth using IMP, ACE and balloon data and also at V2 between 74-92 AU and at V1 beyond the heliospheric termination…

Geophysics · Physics 2011-11-11 W. R. Webber , F. B. McDonald , P. R. Higbie , B. Heikkila

The relaxation of the distribution function of the electrons drifting under the influence of a homogeneous electric field in noble gases is known to take place over an extended spatial domain at `intermediate' values of the reduced electric…

Plasma Physics · Physics 2020-10-21 A. Albert , D. Bošnjaković , S. Dujko , Z. Donkó

A prominent feature of earthquakes is their empirical laws including memory (clustering) in time and space. Several earthquake forecasting models, like the EpidemicType Aftershock Sequence (ETAS) model, were developed based on earthquake…

Electron impact collision strengths among 560 levels of Si IX, 320 levels of Si X and 350 levels of Si XI have been calculated using the Flexible Atomic Code (FAC) of Gu (2003). Collision strengths $\Omega$ at ten scattered electron…

Atomic Physics · Physics 2015-06-26 Guiyun Liang , Gang Zhao , Jiaolong Zeng