K. Wilhelm

8.7k citations

254 papers · 7.2k · 1 hit paper · h-index 39

Impact in

Astronomy and Astrophysics top 1%
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Ionosphere and magnetosphere dynamics
- Stellar, planetary, and galactic studies
- Planetary Science and Exploration
Instrumentation top 10%
- Astronomy and Astrophysical Research

Papers in

Astronomy and Astrophysics 241
- Solar and Space Plasma Dynamics 173
- Ionosphere and magnetosphere dynamics 40
- Astro and Planetary Science 18
- Relativity and Gravitational Theory 10
- Cosmology and Gravitation Theories 5
Instrumentation 8
- Astronomy and Astrophysical Research 8

Co-authors: W. Curdt (64 shared papers)Philippe Lemaire (55 shared papers)Udo H. Schühle (56 shared papers)Donald M. Hassler (30 shared papers)Uri Feldman (25 shared papers)E. Marsch (22 shared papers)P. Brekke (15 shared papers)J. C. Vial (19 shared papers)
Journals: The Astrophysical Journal (33 papers)Astronomy and Astrophysics (16 papers)Solar Physics (16 papers)Advances in Space Research (15 papers)Space Science Reviews (10 papers)
Partner nations: Germany United States France

In The Last Decade

K. Wilhelm

239 papers receiving 6.9k citations

K. Wilhelm's Hit Papers

align trajectories log scale

SUMER - Solar Ultraviolet Measurements of Emitted Radiation 1995 · 704 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

1995 Solar Physics

Peers

Countries citing papers authored by K. Wilhelm

Since Specialization

Citations

This map shows the geographic impact of K. Wilhelm's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by K. Wilhelm with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. Wilhelm more than expected).

Fields of papers citing papers by K. Wilhelm

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. Wilhelm. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by K. Wilhelm. The network helps show where K. Wilhelm may publish in the future.

Co-authors

The 25 scholars most cited alongside K. Wilhelm, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with K. Wilhelm Line = papers co-authored together K. Wilhelm links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 254 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	SUMER - Solar Ultraviolet Measurements of Emitted Radiation Solar Physics ·K. Wilhelm, W. Curdt, E. Marsch, U. Sch�hle, Philippe Lemaire, A. H. Gabriel, J. C. Vial, M. Grewing Hit paper breakdown →	1995	704
2	Bi-directional plasma jets produced by magnetic reconnection on the Sun Nature ·D. E. Innes, Bernd Inhester, W. I. Axford, K. Wilhelm	1997	359
3	First Halley Multicolour Camera imaging results from Giotto Nature ·Horst Uwe Keller, C. Arpigny, C. Barbieri, R. M. Bonnet, Serge Cazes, M. Coradini, C. B. Cosmovici, W. Alan Delamere	1986	286
4	Solar Wind Origin in Coronal Funnels Science ·Chuanyi Tu, Cheng Zhou, E. Marsch, Lidong Xia, Liang Zhao, Jing-Xiu Wang, K. Wilhelm	2005	275
5	The SUMER spectral atlas of solar-disk features Astronomy and Astrophysics ·W. Curdt, P. Brekke, Uri Feldman, K. Wilhelm, B. N. Dwivedi, Udo H. Schühle, Philippe Lemaire	2001	273
6	FIRST RESULTS OF THE SUMER TELESCOPE AND SPECTROMETER ON SOHO – I. Spectra and Spectroradiometry Solar Physics ·K. Wilhelm, Philippe Lemaire, W. Curdt, Udo H. Schühle, E. Marsch, Arthur I. Poland, Stuart D. Jordan, R. J. Thomas	1997	258
7	Solar Wind Outflow and the Chromospheric Magnetic Network Science ·Donald M. Hassler, I. E. Dammasch, Philippe Lemaire, P. Brekke, W. Curdt, Helen E. Mason, J. C. Vial, K. Wilhelm	1999	232
8	The Solar Corona above Polar Coronal Holes as Seen by SUMER onSOHO The Astrophysical Journal ·K. Wilhelm, E. Marsch, Bhola N. Dwivedi, Donald M. Hassler, Philippe Lemaire, A. H. Gabriel, MARTIN C. E. HUBER	1998	228
9	FIRST RESULTS OF THE SUMER TELESCOPE AND SPECTROMETER ON SOHO – II. Imagery and Data Management Solar Physics ·Philippe Lemaire, K. Wilhelm, W. Curdt, U. Schüle, E. Marsch, Arthur I. Poland, Stuart D. Jordan, R. J. Thomas	1997	201
10	A Coronal Spectrum in the 500–1610 A Wavelength Range Recorded at a Height of 21,000 Kilometers above the West Solar Limb by the SUMER Instrument on Solar and Heliospheric Observatory The Astrophysical Journal Supplement Series ·Uri Feldman, W. E. Behring, W. Curdt, Udo H. Schühle, K. Wilhelm, Philippe Lemaire, T. M. Moran	1997	147
11	Comet P/Halley’s nucleus and its activity Springer eBooks ·Horst Uwe Keller, W. Alan Delamere, W. F. Huebner, Harold J. Reitsema, H. U. Schmidt, Fred L. Whipple, K. Wilhelm, W. Curdt	1988	140
12	SUMER — Solar Ultraviolet Measurements of Emitted Radiation Springer eBooks ·K. Wilhelm	2008	127
13	Ion Temperatures in a Solar Polar Coronal Hole Observed by Sumer onSOHO The Astrophysical Journal ·Chuanyi Tu, E. Marsch, K. Wilhelm, W. Curdt	1998	116
14	Doppler Shifts in the Quiet-Sun Transition Region and Corona Observed with Sumer on Soho Solar Physics ·P. Brekke, Donald M. Hassler, K. Wilhelm	1997	109
15	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{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $1.03\leq R_{\odot }\leq 1.50$ \end{document} along the Solar Equatorial Plane The Astrophysical Journal ·Uri Feldman, G. A. Doschek, Udo H. Schühle, K. Wilhelm	1999	104
16	Correlated Dynamics of Hot and Cool Plasmas in the Main Phase of a Solar Flare The Astrophysical Journal ·B. Kliem, I. E. Dammasch, W. Curdt, K. Wilhelm	2002	97
17	SUMER Observations Confirm the Dynamic Nature of the Quiet Solar Outer Atmosphere: The Internetwork Chromosphere The Astrophysical Journal ·Mats Carlsson, P. G. Judge, K. Wilhelm	1997	91
18	Electron Densities in the Solar Polar Coronal Holes from Density-Sensitive Line Ratios of [CLC]Si[/CLC] [CSC]viii[/CSC][CLC]and S [CSC]x[/CSC] [CLC][/CLC][/CLC] The Astrophysical Journal ·G. A. Doschek, Harry P. Warren, J. Martin Laming, J. T. Mariska, K. Wilhelm, Philippe Lemaire, Udo H. Schühle, Thomas G. Moran	1997	89
19	Identification of Spectral Lines in the 500–1600 A Wavelength Range of Highly Ionized Ne, Na, Mg, Ar, K, Ca, Ti, Cr, Mn, Fe, Co, and Ni Emitted by Flares (Te≥ 3 x 106K) and Their Potential Use in Plasma Diagnostics The Astrophysical Journal ·Uri Feldman, W. Curdt, Enrico Landi, K. Wilhelm	2000	84
20	A Study of Chromospheric Oscillations Using theSOHOandTRACESpacecraft The Astrophysical Journal ·P. G. Judge, T. D. Tarbell, K. Wilhelm	2001	81

About K. Wilhelm

K. Wilhelm is a scholar working on Astronomy and Astrophysics, Instrumentation, Aerospace Engineering, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering, having authored 254 papers that have together received 7.2k indexed citations. Recurring topics across this work include Solar and Space Plasma Dynamics (173 papers), Ionosphere and magnetosphere dynamics (40 papers), Astro and Planetary Science (18 papers), Calibration and Measurement Techniques (12 papers), Relativity and Gravitational Theory (10 papers), Astronomy and Astrophysical Research (8 papers), Plasma Diagnostics and Applications (6 papers) and Cosmology and Gravitation Theories (5 papers). The work is most often cited by research in Astronomy and Astrophysics (6.7k citations), Instrumentation (80 citations), Atomic and Molecular Physics, and Optics (416 citations), Aerospace Engineering (158 citations) and Nuclear and High Energy Physics (49 citations). K. Wilhelm has collaborated with scholars based in Germany, United States and France. Frequent co-authors include W. Curdt, Philippe Lemaire, Udo H. Schühle, Donald M. Hassler, Uri Feldman, E. Marsch, P. Brekke, J. C. Vial, A. H. Gabriel and I. E. Dammasch. Their work appears in journals such as The Astrophysical Journal, Astronomy and Astrophysics, Solar Physics, Advances in Space Research and Space Science Reviews.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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K. Wilhelm's Hit Papers

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