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7 papers · 1 filter
X-ray detection of astrospheres around three main-sequence stars and their mass-loss rates
K. G. Kislyakova, M. Güdel, D. Koutroumpa +3
Stellar winds of cool main sequence stars are very difficult to constrain observationally. One way to measure stellar mass loss rates is to detect soft X-ray emission from stellar…
Backscattered solar Lyman-alpha emission as a tool for the heliospheric boundary exploration
I. Baliukin, J. L. Bertaux, M. Bzowski +4
This review summarizes our current understanding of the outer heliosphere and local interstellar medium (LISM) inferred from observations and modeling of interplanetary Lyman- e…
The Solar-Cycle Temporal Variation of the Solar Wind Charge Exchange X-ray Lines
Zhijie Qu, Dimitra Koutroumpa, Joel N. Bregman +2
Solar wind charge exchange (SWCX) is the primary contamination to soft X-ray emission lines from the Milky Way (MW) hot gas. We report a solar-cycle ( yr) temporal vari…
Stability of the interstellar hydrogen inflow longitude from 20 years of SOHO/SWAN observations
Dimitra Koutroumpa, Eric Quémerais, Olga Katushkina +3
Aims. A recent debate on the decade-long stability of the interstellar He flow vector, and in particular the flow longitude, has prompted us to check for any variability in the int…
On the Stability of the Interstellar Wind through the Solar System
J. L. Bertaux, R. Lallement
As a follow-up of a recent study, we challenge the claim that the flow of interstellar helium through the solar system has changed substantially over the last decades. We argue tha…
The origin of the 'local' 1/4 keV X-ray flux in both charge exchange and a hot bubble
M. Galeazzi, M. Chiao, M. R. Collier +14
The Solar neighborhood is the closest and most easily studied sample of the Galactic interstellar medium, an understanding of which is essential for models of star formation and ga…