Results 11 to 20 of about 1,011 (143)

A new model describing Forbush Decreases at Mars: combining the heliospheric modulation and the atmospheric influence

Earth and Planetary Physics, 2020
Forbush decreases are depressions in the galactic cosmic rays (GCRs) that are caused primarily by modulations of interplanetary coronal mass ejections (ICMEs) but also occasionally by stream/corotating interaction regions (SIRs/CIRs).
Jingnan Guo, Robert F. Wimmer-Schweingruber, Mateja Dumbović, Bernd Heber, YuMing Wang   +4 more
doaj   +1 more source

Galactic Cosmic Ray induced absorbed dose rate in deep space – Accounting for detector size, shape, material, as well as for the solar modulation

Journal of Space Weather and Space Climate, 2019
Depending on the radiation field, the absorbed dose rate can depend significantly upon the size of the detectors or the phantom used in the models. In deep space (interplanetary medium) the radiation field is on avarage dominated by Galactic Cosmic Ray ...
Banjac Saša, Berger Lars, Burmeister Sönke, Guo Jingnan, Heber Bernd, Herbst Konstantin, Wimmer-Schweingruber Robert   +6 more
doaj   +1 more source

Modeling the Radiation Environment of Energetic Particles at Mars Orbit and a First Validation against TGO Measurements

The Astrophysical Journal, 2023
Sending astronauts to Mars will be a milestone of future deep space exploration activities. However, energetic particle radiation in deep space and in the Mars environment is a major risk to the health of future human explorers.
Weihao Liu, Jingnan Guo, Jian Zhang, Jordanka Semkova   +3 more
doaj   +1 more source

π‐Extended COUPY Fluorophores for Targeted Near‐Infrared Fluorescence and Lifetime Imaging in Live Cells

Angewandte Chemie, EarlyView.
π‐Extended COUPY dyes, obtained by vinylogation of coumarin‐based COUPY scaffolds, shift absorption, and emission deep into the NIR region while preserving compactness and synthetic accessibility. These bright, photostable dyes enable live‐cell imaging, FLIM, and site‐specific peptide conjugation, offering a modular platform for targeted bioimaging and
Diego Abad‐Montero, Manel Bosch, Rodrigo Garcés‐Castellanos, Michael Q. Schottenhamel, Sergio Pedraza‐Arevalo, Alejandro Ibáñez‐Costa, Justo P. Castaño, Tania García‐Becerra, Elena Rebollo, Marta E. Alberto, Antonio Francés‐Monerris, Vicente Marchán   +11 more
wiley   +2 more sources

Utilizing AI to unveil the nonlinear interplay of convection, drift, and diffusion on galactic cosmic ray modulation in the inner heliosphere

Scientific Reports, 2022
Galactic Cosmic Rays (GCRs) are charged particles, originating from galactic and/or extra-galactic Supernova Remnants (SNR), that continuously permeate the Heliosphere. The GCRs are modulated in the heliosphere by convection by solar wind (SW), drift via
Fadil Inceoglu, Alessandra Abe Pacini, Paul T. M. Loto’aniu   +2 more
doaj   +1 more source

Modulation of UK lightning by heliospheric magnetic field polarity

Environmental Research Letters, 2014
Observational studies have reported solar magnetic modulation of terrestrial lightning on a range of time scales, from days to decades. The proposed mechanism is two-step: lightning rates vary with galactic cosmic ray (GCR) flux incident on Earth, either
M J Owens, C J Scott, M Lockwood, L Barnard, R G Harrison, K Nicoll, C Watt, A J Bennett   +7 more
doaj   +1 more source

MANIFESTATIONS OF TWO BRANCHES OF SOLAR ACTIVITY IN THE HELIOSPHERE AND GCR INTENSITY

Solar-Terrestrial Physics, 2019
This paper provides insight into heliospheric processes and galactic cosmic ray (GCR) modulation occurring due to the presence of two branches of solar activity in this solar layer.
Krainev M.B.
doaj   +1 more source

Evidence From Galactic Cosmic Rays That the Sun Has Likely Entered a Secular Minimum in Solar Activity

Space Weather, 2022
Since the beginning of the space age, the Sun has been in a multi‐cycle period of elevated activity (secular maximum). This secular maximum is the longest in the last 9300 years.
F. Rahmanifard, A. P. Jordan, W. C. deWet, N. A. Schwadron, J. K. Wilson, M. J. Owens, H. E. Spence, P. Riley   +7 more
doaj   +1 more source

Effects of solar activity and galactic cosmic ray cycles on the modulation of the annual average temperature at two sites in southern Brazil [PDF]

Annales Geophysicae, 2018
Quasi-periodic variations in solar activity and galactic cosmic rays (GCRs) on decadal and bidecadal timescales have been suggested as a climate forcing mechanism for many regions on Earth.
E. Frigo, F. Antonelli, D. S. S. da Silva, P. C. M. Lima, I. I. G. Pacca, J. V. Bageston   +5 more
doaj   +1 more source

The Algorithm of the Two Neutron Monitors for the Analysis of the Rigidity Spectrum Variations of Galactic Cosmic Ray Intensity Flux in Solar Cycle 24

Universe
The method of the two neutron monitors was used to analyze the parameters of the rigidity spectrum variations (RSV) of galactic cosmic ray intensity (GCR) flux in solar cycle 24 based on the data from the global network of neutron monitors.
Krzysztof Iskra, Marek Siluszyk, Witold Wozniak   +2 more
doaj   +1 more source