activity
19942011
most citedEnhancement of the helium resonance lines in the solar atmosphere by suprathermal electron excitation I: non-thermal transport of helium ions

21 citations · 92 across the 7 of their papers we have counts for

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astro-ph2005★ 20 cited

Modelling the chromosphere and transition region of Epsilon Eri (K2 V)

S. A. Sim, C. Jordan

Measurements of ultraviolet line fluxes from Space Telescope Imaging Spectrograph and Far-Ultraviolet Spectroscopic Explorer spectra of the K2-dwarf Epsilon Eri are reported. These…

astro-ph2003★ 12 cited

On the filling factor of emitting material in the upper atmosphere of Epsilon Eri (K2 V)

S. A. Sim, C. Jordan

The emission measure distribution in the upper transition region and corona of Epsilon Eri is derived from observed emission line fluxes. Theoretical emission measure distributions…

astro-ph2002★ 21 cited

Enhancement of the helium resonance lines in the solar atmosphere by suprathermal electron excitation I: non-thermal transport of helium ions

G. R. Smith, C. Jordan

Models of the solar transition region made from lines other than those of helium cannot account for the strength of the helium lines. However, the collisional excitation rates of t…

astro-ph2001★ 17 cited

Detection of magnetic dipole lines of Fe XII in the ultraviolet spectrum of the dwarf star Epsilon Eri

C. Jordan, A. D. McMurry, S. A. Sim +1

We report observations of the dwarf star Epsilon Eri (K2 V) made with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST). The high sensitivity of t…

astro-ph1994★ 17 cited

ROSAT Observations of the Flare Star CC Eri

H. C. Pan, C. Jordan

The flare/spotted spectroscopic binary star CC Eri was observed with the Position Sensitive Proportional Counter (PSPC) on the X-ray satellite ROSAT on 1990 July 9-11 and 1992 Janu…