Results 31 to 40 of about 195 (134)

THE ASTROSPHERE OF THE ASYMPTOTIC GIANT BRANCH STAR CIT 6 [PDF]

open access: yesThe Astronomical Journal, 2014
accepted for publication by the Astronomical ...
Sahai, Raghvendra, Mack-Crane, Galen P.
openaire   +2 more sources

On‐the‐Fly Calculation of Absorbed and Equivalent Atmospheric Radiation Dose in A Water Phantom with the Atmospheric Radiation Interaction Simulator (AtRIS)

open access: yesJournal of Geophysical Research: Space Physics, Volume 124, Issue 12, Page 9774-9790, December 2019., 2019
Abstract Computation of the ionization and radiation dose in arbitrary (exo‐) planetary atmospheres due to energetic particles is recently becoming more important due to several reasons that are either correlated with the detection of trace gases for life on exoplanets or with computing dose rates at arbitrary altitudes in the Earth atmosphere.
S. Banjac   +4 more
wiley   +1 more source

THE ASTROSPHERE OF THE ASYMPTOTIC GIANT BRANCH STAR IRC+10216 [PDF]

open access: yesThe Astrophysical Journal, 2010
We have discovered a very extended shock structure (i.e., with a diameter of about 24 arcmin) surrounding the well-known carbon star IRC+10216 in ultraviolet images taken with the GALEX satellite. We conclude that this structure results from the interaction of IRC+10216's molecular wind with the interstellar medium (ISM), as it moves through the latter.
Sahai, Raghvendra   +1 more
openaire   +2 more sources

On stellar activity cycle-related cosmic ray modulation effects in the astrosphere of Proxima Centauri

open access: yesJournal of Space Weather and Space Climate
In the heliosphere, solar cycle-related changes in galactic cosmic ray (GCR) intensities have long been known to arise as a direct consequence of solar cyclic changes in, for example, the heliospheric magnetic field and the solar tilt angle.
Engelbrecht Nicholas Eugene   +1 more
doaj   +1 more source

Comparative collisionless shocks beyond Earth [PDF]

open access: yes, 2022
Collisionless shock waves are an ubiquitous phenomena occurring upstream of planetary magnetospheres, cometary bodies, coronal mass ejections (CMEs), and astrospheres.
Wilson, Lynn B., III
core  

INCREASE: An updated model suite to study the INfluence of Cosmic Rays on Exoplanetary AtmoSpherEs [PDF]

open access: yes, 2021
Exoplanets are as diverse as they are fascinating. They vary from ultrahot Jupiter-like low-density planets to presumed gas-ice-rock mixture worlds such as GJ 1214b or worlds as LHS 1140b, which features twice the Earth\u27s bulk density.
Grenfell, John Lee   +3 more
core   +2 more sources

Sliding Contacts in Planetary Magnetospheres [PDF]

open access: yes, 2021
In the planetary magnetospheres there are specific places connected with velocity breakdown, reconnection, and dynamo processes. Here we pay attention to sliding layers.
Igor Alexeev, Elena Belenkaya
core   +1 more source

Imaging Magnetically Driven Astrospheres: A Forward Modeling Approach

open access: yesThe Astrophysical Journal Letters
An astrosphere is a vast, tailed, bubble-like volume around a star, formed through the interaction between the stellar magnetic field, the stellar wind, and the interstellar medium (ISM).
Ziqi Wu   +7 more
doaj   +1 more source

Lyman-alpha observations of astrospheres

open access: yes, 2014
Charge-exchange reactions between outflowing stellar wind protons and interstellar neutral hydrogen atoms entering a stellar astrosphere produce a region of piled-up-decelerated neutral hydrogen called the hydrogen wall. Absorption by this gas, which is observed in stellar Lyman-alpha emission lines, provides the only viable technique at this time for ...
Linsky, Jeffrey L., Wood, Brian E.
openaire   +2 more sources

Home - About - Disclaimer - Privacy