Results 61 to 70 of about 476,181 (204)
Space Weather, Volume 24, Issue 5, May 2026.Abstract We report new measurements of high‐energy protons ejected by the sun during the May 2024 Ganon superstorm. Our observations were made by the Neutron Spectrometer (NS) on the Psyche spacecraft, which was located at a solar distance of approximately 2 AU and a Sun‐Earth‐Probe separation angle of 75°.
Madison Liebel +3 more
wiley +1 more source
Diffuse interstellar bands and cloud density [PDF]
Monthly Notices of the Royal Astronomical Society, 1988 Il est demontre que les forces des caracteristiques d'absorption a λλ4430 et 5780 sont independantes des quantites en relation a la densite des nuages interstellaires. Il est demontre que des resultats anterieurs qui suggeraient de telles relations sont errones suite a l'omission de valeurs non nulles a E(B-V)=0 dans les analyses de ...
openaire +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both +2 more
wiley +1 more source
The diffuse interstellar features and interstellar relationships [PDF]
, 1990 This thesis describes the results of a survey of the diffuse interstellar features towards about 120 stars. The observations, the data reduction and the measurement of the strengths of the diffuse features are described.
Fossey, Stephen John
core +1 more source
Surveys of the Milky Way and Magellanic System in the λ21-cm line of atomic hydrogen
EPJ Web of Conferences, 2012 In the next three years, surveys of the Northern and Southern skies using focal plane arrays on aperture synthesis radio telescopes will lead to a breakthrough in our knowledge of the warm and cool atomic phases of the interstellar medium and their ...
Dickey J.M.
doaj +1 more source
Absorption-line Observations of and CO in Sight Lines Toward the Vela and W28 Supernova Remnants
The Astrophysical Journal, 2023 Supernova remnants act as particle accelerators, providing the cosmic-ray protons that permeate the interstellar medium and initiate the ion–molecule reactions that drive interstellar chemistry. Enhanced fluxes of cosmic-ray protons in close proximity to
Nick Indriolo
doaj +1 more source
The Origin of the Cluster of Local Interstellar Clouds
The Astrophysical JournalThe interstellar medium within ≈15 pc of the Sun consists of a complex of 15 diffuse, partially ionized clouds. Located within the Local Bubble, these clouds, known as the Cluster of Local Interstellar Clouds (CLIC), constitute the interstellar ...
Catherine Zucker +4 more
doaj +1 more source
Abundance Ratios of OH/CO and HCO+/CO as Probes of the Cosmic-Ray Ionization Rate in Diffuse Clouds
The Astrophysical Journal, 2023 The cosmic-ray ionization rate (CRIR, ζ _2 ) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as ${{\rm{H}}}_{3}^{+}$ , OH ^+ , and
Gan Luo +8 more
doaj +1 more source
The Astrophysical JournalPolarized foreground emission from the Galaxy is one of the biggest challenges facing current and upcoming cosmic microwave background (CMB) polarization experiments.
The Pan-Experiment Galactic Science Group +17 more
doaj +1 more source
Novel algorithms for the understanding of the chemical cosmos [PDF]
, 2015 Molecular data from the interstellar medium (ISM) contain information that holds the key to understanding our chemically controlled cosmos and to unlocking the secrets of our universe.
Makrymallis, A
core