activity
20062026
most citedOVII and OVIII line emission in the diffuse soft X-ray background: heliospheric and galactic contributions

91 citations · 854 across the 25 of their papers we have counts for

collaborators
Showing astro-phShow all

5 papers · 1 filter

astro-ph2008★ 69 cited

The solar wind charge-transfer X-ray emission in the 1/4 keV energy range: inferences on Local Bubble hot gas at low Z

D. Koutroumpa, R. Lallement, J. C. Raymond +1

We present calculations of the heliospheric SWCX emission spectra and their contributions in the ROSAT 1/4 keV band. We compare our results with the soft X-ray diffuse background (…

astro-ph2008★ 45 cited

The Solar Wind Charge-eXchange contribution to the Local Soft X-ray Background. Model to data comparison in the 0.1-1.0 keV band

Dimitra Koutroumpa, Rosine Lallement, Vasili Kharchenko +1

The major sources of the Soft X-ray Background (SXRB), besides distinct structures as supernovae and superbubbles (e.g. Loop I), are: (i) an absorbed extragalactic emission followi…

astro-ph2007★ 91 cited

OVII and OVIII line emission in the diffuse soft X-ray background: heliospheric and galactic contributions

D. Koutroumpa, F. Acero, R. Lallement +2

We study the 0.57 keV (O VII triplet) and 0.65 keV (O VIII) diffuse emission generated by charge transfer collisions between solar wind (SW) oxygen ions and interstellar H and He n…

astro-ph2007★ 19 cited

Velocity Profiles in the Solar Corona from Multi-Instrument Observations

E. Quemerais, R. Lallement, D. Koutroumpa +1

We present a method to derive outflow velocities in the solar corona using different data sets including solar wind mass flux coming from the SWAN/SOHO instrument, electron density…

astro-ph2006★ 24 cited

Interplanetary Lyman line profiles: variations with solar activity cycle

Eric Quémerais, Rosine Lallement, Jean-Loup Bertaux +4

Interplanetary Lyman alpha line profiles are derived from the SWAN H cell data measurements. The measurements cover a 6-year period from solar minimum (1996) to after the solar max…