The Solar Helium Abundance in the Outer Corona Determined from Observations with SUMER/SOHO

Abundances of the elements: Meteoritic and solar

1989 • 9,519 citations

Quantum Mechanics of One- and Two-Electron Atoms

1957 • 4,568 citations

Recombination-line intensities for hydrogenic ions - I. Case B calculations for H I and He II

1987 • 697 citations

Cosmological limits to the number of massive leptons

1977 • 387 citations

Toward a unified classical model of the sun - On the sensitivity of neutrinos and helioseismology to the microscopic physics

1993 • 258 citations

The Galileo Probe Mass Spectrometer: Composition of Jupiter's Atmosphere

1996 • 257 citations

Energetic-particle abundances in impulsive solar flare events

1994 • 240 citations

Untitled

1997 • 234 citations

He-3-rich flares - A possible explanation

1978 • 207 citations

Application of discrete-basis-set methods to the Dirac equation

1981 • 193 citations

Coronal Composition above the Solar Equator and the North Pole as Determined from Spectra Acquired by the SUMER Instrument onSOHO

1998 • 131 citations

Electron‐Ion Equilibration in Nonradiative Shocks Associated with SN 1006

1996 • 114 citations

The Role of Helium in the Outer Solar Atmosphere

1997 • 107 citations

Properties of Quiet‐Sun Coronal Plasmas at Distances of \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\…

1999 • 101 citations

The Helium Mass Fraction in Jupiter's Atmosphere

1996 • 77 citations

Calculation of electron scattering on the He⁺ion

1993 • 68 citations

Physical Structure of a Coronal Streamer in the Closed‐Field Region as Observed from UVCS/SOHOand SXT/Yohkoh

1998 • 62 citations

Collisional rates and cooling within atomic hydrogen plasmas

1991 • 55 citations

Accelerated and Ambient He Abundances from Gamma‐Ray Line Measurements of Flares

1998 • 51 citations

Electron Density Diagnostics for the Solar Upper Atmosphere from Spectra Obtained by SUMER/SOHO

1997 • 51 citations

A new estimate of the uncertainties in the primordial helium abundance: New bounds on omega baryons

1995 • 41 citations

Impact excitation of then=2fine-structure levels in hydrogenlike ions by protons and electrons

1987 • 36 citations

Spacelab 2 measurement of the solar coronal helium abundance

1995 • 34 citations

The Helium Valley: Comparison of Impulsive Solar Flare Ion Abundances and Gyroresonant Acceleration with Oblique Turbulence in a Hot Multi‐Ion Plasma

1997 • 23 citations

Recombination line intensities for hydrogenic ions: The fine-structure components of HI and HeII

1999 • 23 citations

Helium diffusion in the sun

1992 • 22 citations

Coupling of the coronal helium abundance to the solar wind

1994 • 22 citations

Relationships among the Intensities of Li‐, Be‐, and Na‐like Resonance Lines in Collisionally Ionized Astrophysical Plasmas ( \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\…

1999 • 18 citations

Untitled

1999 • 17 citations

Excess Helium as an Explanation for Metal Deficiency in Coronal Plasma?

1998 • 17 citations

Theoretical cross sections, angular-correlation parameters and polarization fractions for electron-hydrogen scattering

1995 • 15 citations

Temperature Structure of the Quiet Corona: An SXT‐SUMER Discrepancy

2000 • 9 citations