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Found 2 entries in the Bibliography.
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2023 |
Transport of Cosmic-Ray Electrons from 1 au to the Sun Gamma rays are produced by cosmic-ray (CR) protons interacting with the particles at the solar photosphere and by CR electrons and positrons (CRes) via inverse Compton scattering of solar photons. The former comes from the solar disk while the latter extends beyond the disk. Evaluation of these emissions requires the flux and spectrum of CRs in the vicinity of the Sun, while most observations provide flux and spectra near the Earth, at around 1 au from the Sun. Past estimates of the quiet Sun gamma- ray emission use phenomen ... Petrosian, Vah\; Orlando, Elena; Strong, Andrew; Published by: \apj Published on: jan YEAR: 2023   DOI: 10.3847/1538-4357/aca474 Parker Data Used; cosmic rays; Solar wind; interplanetary turbulence; 329; 1534; 830; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Solar and Stellar Astrophysics |
2010 |
Solar Probe Plus: Impact of light scattering by solar system dust on star tracker performance NASA s upcoming Solar Probe Plus mission will be the first to approach the Sun as close as 8.5 solar radii from the surface and provide in-situ observations of the Sun s corona. In the absence of observational data (e.g., Helios, Pioneer), for distances less than 0.3 AU, the ambient dust distribution close to the Sun remains poorly known and limited to model extrapolation for distances < 1 AU. For the Solar Probe Plus (SPP) mission it is critical to characterize the inner solar system dust environment to evaluate potential i ... Strikwerda, Thomas; Strong, Shadrian; Rogers, Gabe; Published by: Advances in the Astronautical Sciences Published on: Atomic absorption spectrometry; Dust; Light scattering; NASA; Probes; Solar system; Space flight; Stars; Parker Engineering |
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