Results 11 to 20 of about 711 (153)

Dust in and Around the Heliosphere and Astrospheres. [PDF]

open access: yesSpace Sci Rev, 2022
Interstellar dust particles were discovered in situ, in the solar system, with the Ulysses mission’s dust detector in 1992. Ever since, more interstellar dust particles have been measured inside the solar system by various missions, providing insight ...
Sterken VJ   +9 more
europepmc   +5 more sources

Hubble Space Telescope Constraints on the Winds and Astrospheres of Red Giant Stars [PDF]

open access: yesThe Astrophysical Journal, 2016
We report on an ultraviolet spectroscopic survey of red giants observed by the Hubble Space Telescope, focusing on spectra of the Mg II h & k lines near 2800 A in order to study stellar chromospheric emission, winds, and astrospheric absorption. We focus
Harper, Graham M.   +2 more
core   +7 more sources

Faint but Not Forgotten. I. First Results from a Search for Astrospheres around AGB Stars in the Far-ultraviolet [PDF]

open access: yesThe Astronomical Journal, 2023
Using the GALEX archive, we have discovered extended structures around ten asymptotic giant branch (AGB) stars (out of a total 92 searched) emitting in the far-ultraviolet (FUV) band.
Raghvendra Sahai, Benjamin Stenger
doaj   +2 more sources

Astrospheres and Cosmic Rays [PDF]

open access: yesJournal of Physics: Conference Series, 2018
Ionization plays a key role in the formation of stars, planets and planetary atmospheres. Cosmic rays (CR) are the main source of ionization, therefore it is important to estimate fluxes of galactic and stellar cosmic rays (GCR and SCR) for different ...
A. Struminsky, A. Sadovski
semanticscholar   +3 more sources

Shock structures of astrospheres [PDF]

open access: yesAstronomy & Astrophysics, 2015
The interaction between a supersonic stellar wind and a (super-)sonic interstellar wind has recently been viewed with new interest. We here first give an overview of the modeling, which includes the heliosphere as an example of a special astrosphere ...
K. Scherer   +5 more
semanticscholar   +4 more sources

The global structure of astrospheres: Effect of Knudsen number [PDF]

open access: yesPublications of the Astronomical Society of Australia
The interaction between stellar winds and the partially ionized local interstellar medium (LISM) is quite common in astrophysics. However, the main difficulty in describing the neutral components lies in the fact that the mean free path of an ...
S.Y. Korolkov, V. Izmodenov
semanticscholar   +3 more sources

Astrospheres of Planet-Hosting Cool Stars and Beyond ⋅ When Modeling Meets Observations

open access: yesSpace Science Reviews, 2022
Thanks to dedicated long-term missions like Voyager and GOES over the past 50 years, much insight has been gained on the activity of our Sun, the solar wind, its interaction with the interstellar medium, and, thus, about the formation, the evolution, and
K. Herbst   +18 more
semanticscholar   +4 more sources

On the problem of two-tail heliosphere/astrospheres

open access: yesJournal of Physics: Conference Series, 2018
We consider the effect of the solar/stellar wind collimation towards the solar/stellar wind rotation axis in the heliosheath between the termination shock and the heliopause/astropause.
V. Izmodenov, D. Alexashov
semanticscholar   +2 more sources

Stellar Lyman-alpha Emission Lines in the Hubble Space Telescope Archive: Intrinsic Line Fluxes and Absorption from the Heliosphere and Astrospheres [PDF]

open access: yes, 2005
We search the Hubble Space Telescope (HST) archive for previously unanalyzed observations of stellar H I Lyman-alpha emission lines, our primary purpose being to look for new detections of Lyman-alpha absorption from the outer heliosphere, and to also ...
Baranov V. B.   +29 more
core   +2 more sources

The Direction of the Flow of Interstellar Neutral H Based on Photometric Observations from SOHO/SWAN

open access: yesThe Astrophysical Journal, 2023
Interstellar neutral hydrogen flows into the heliosphere as a mixture of the primary and secondary populations from two somewhat different directions due to splitting occurring in the magnetized outer heliosheath.
M. Bzowski   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy