Results 51 to 60 of about 221 (127)

Lyα Absorption in a “Croissant-like” Heliosphere

The Astrophysical Journal
Ly α absorption profiles have been used to detect astrospheres and heliospheric absorption from the hydrogen wall and heliotail. Using magnetohydrodynamic models of the heliosphere, we can compare simulated to observed Ly α profiles to probe the neutral ...
Erick Powell, Merav Opher, Marc Z. Kornbleuth, Igor Baliukin, Adam T. Michael, Brian E. Wood, Vladislav Izmodenov, Gabor Toth, Valeriy Tenishev   +8 more
doaj   +1 more source

First Resolution of a Main-sequence G star’s Astrosphere Using Chandra

The Astrophysical Journal
Abstract We report the resolution of a halo of X-ray line emission surrounding the zero-age main-sequence G8.5V star HD 61005 by Chandra/ACIS-S. Located only ∼36 pc distant, HD 61005 is young (100 ± 50 Myr) and X-ray bright (∼300 × solar), observed with a nearly edge-on geometry and surrounded by very local ...
Lisse, Carey, Wolk, Scott, Snios, Bradford, Mcnutt, Ralph, Slavin, Jonathan, Osten, Rachel, Hines, Dean, Debes, John, Koutroumpa, Dimitra, Kharchenko, V., Linsky, Jeffrey, Brandt, Pontus, Horanyi, Mihaly, Günther, H, Guinan, Edward, Redfield, Seth, Frisch, Priscilla, Dennerl, Konrad, Kashyap, Vinay, Kislyakova, Kristina, Fernandez, Yanga, Provornikova, Elena, Macgregor, Meredith, Chen, Christine, Paxton, L., Dialynas, Konstantinos, Gu, Liyi   +26 more
openaire   +4 more sources

Numerical modeling of the evolution of stellar wind cavities and supernova remnants [PDF]

, 2016
PhD (Physics), North-West University, Potchefstroom Campus, 2017An astrosphere is a low density cavity that results from an outflowing supersonic wind. Of particular interest in this study is the effect of radiative cooling on the computed evolution of
Van der Schyff, Augusts Eric
core  

Local interstellar cloud grains outside the heliopause

, 2003
The dynamics of small (~0.01 μm) interstellar grains in the heliospheric transition region is studied using numerical simulations. The velocity distributions of the grains at the boundary of the heliosphere are found to depend sensitively on the global ...
I. Mann, A. Czechowski
core   +1 more source

Heliospheric, Astrospheric, and Interstellar Lyα Absorption toward 36 Ophiuchi

The Astrophysical Journal, 2000
We use high-resolution UV spectra taken by the Space Telescope Imaging Spectrograph instrument on board the Hubble Space Telescope to study the 5.5 pc line of sight to the K0 V star 36 Oph A. The one interstellar component detected for this line of sight has a velocity inconsistent with the local interstellar cloud (LIC) flow vector but consistent with
Brian E. Wood, Jeffrey L. Linsky, Gary P. Zank   +2 more
openaire   +1 more source

SARS-CoV-2 Infection of Human Neurons Is TMPRSS2 Independent, Requires Endosomal Cell Entry, and Can Be Blocked by Inhibitors of Host Phosphoinositol-5 Kinase. [PDF]

J Virol, 2023
Kettunen P, Lesnikova A, Räsänen N, Ojha R, Palmunen L, Laakso M, Lehtonen Š, Kuusisto J, Pietiläinen O, Saber SH, Joensuu M, Vapalahti OP, Koistinaho J, Rolova T, Balistreri G.   +14 more
europepmc   +1 more source

Future Exploration of the Outer Heliosphere and Very Local Interstellar Medium by Interstellar Probe. [PDF]

Space Sci Rev, 2023
Brandt PC, Provornikova E, Bale SD, Cocoros A, DeMajistre R, Dialynas K, Elliott HA, Eriksson S, Fields B, Galli A, Hill ME, Horanyi M, Horbury T, Hunziker S, Kollmann P, Kinnison J, Fountain G, Krimigis SM, Kurth WS, Linsky J, Lisse CM, Mandt KE, Magnes W, McNutt RL, Miller J, Moebius E, Mostafavi P, Opher M, Paxton L, Plaschke F, Poppe AR, Roelof EC, Runyon K, Redfield S, Schwadron N, Sterken V, Swaczyna P, Szalay J, Turner D, Vannier H, Wimmer-Schweingruber R, Wurz P, Zirnstein EJ.   +42 more
europepmc   +1 more source

Astrophysical radiation environments of habitable worlds [PDF]

, 2006
textNumerous astrophysical sources of radiation affect the environment of planets orbiting within the liquid-water habitable zone of main-sequence stars.
Smith, David Samuel
core   +1 more source

Inhomogeneity in the Local ISM and Its Relation to the Heliosphere. [PDF]

Space Sci Rev, 2022
Linsky J, Redfield S, Ryder D, Moebius E.   +3 more
europepmc   +1 more source

Heliophysics: active stars, their astrospheres, and impacts on planetary environments

, 2016
Heliophysics is a fast-developing scientific discipline that integrates studies of the Sun's variability, the surrounding heliosphere, and the environment and climate of planets. This volume, the fourth in the Heliophysics collection, explores what makes
Schrijver, Carolus J, Bagenal, Frances, Sojka, Jan J   +2 more
core   +1 more source