153 citations · 2.2k across the 55 of their papers we have counts for
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XUV exposed non-hydrostatic hydrogen-rich upper atmospheres of terrestrial planets. Part I: Atmospheric expansion and thermal escape
N. V. Erkaev, H. Lammer, P. Odert +6
The recently discovered low-density "super-Earths" Kepler-11b, Kepler-11f, Kepler-11d, Kepler-11e, and planets such as GJ 1214b represent most likely planets which are surrounded b…
XUV exposed, non-hydrostatic hydrogen-rich upper atmospheres of terrestrial planets II: Hydrogen coronae and ion escape
K. G. Kislyakova, H. Lammer, M. Holmström +8
We study the interactions between the stellar wind plasma flow of a typical M star, such as GJ 436, and hydrogen-rich upper atmospheres of an Earth-like planet and a "super-Earth"…
Torsional Alfvén waves in solar partially ionized plasma: effects of neutral helium and stratification
T. V. Zaqarashvili, M. L. Khodachenko, R. Soler
Ion-neutral collisions may lead to the damping of Alfven waves in chromospheric and prominence plasmas. Neutral helium atoms enhance the damping in certain temperature interval, wh…
Probing the Blow-Off Criteria of Hydrogen-Rich "Super-Earths"
H. Lammer, N. V. Erkaev, P. Odert +3
The discovery of transiting "super-Earths" with inflated radii and known masses such as Kepler-11b-f, GJ 1214b and 55 Cnc e, indicates that these exoplanets did not lose their nebu…
Cut-off wavenumber of Alfven waves in partially ionized plasmas of the solar atmosphere
T. V. Zaqarashvili, M. Carbonell, J. L. Ballester +1
Alfven wave dynamics in partially ionized plasmas of the solar atmosphere shows that there is indeed a cut-off wavenumber, i.e. the Alfven waves with wavenumbers higher than the cu…