U. Feldman

14.9k citations

465 papers · 11.9k · 1 hit paper · h-index 54

Impact in

Astronomy and Astrophysics top 0.2%
- Solar and Space Plasma Dynamics
- Stellar, planetary, and galactic studies
- Astro and Planetary Science
- Ionosphere and magnetosphere dynamics
Atomic and Molecular Physics, and Optics top 0.2%
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies

Papers in

Astronomy and Astrophysics 255
- Solar and Space Plasma Dynamics 235
- Astro and Planetary Science 127
- Stellar, planetary, and galactic studies 111
- Ionosphere and magnetosphere dynamics 75
Atomic and Molecular Physics, and Optics 151
- Atomic and Molecular Physics 135

Co-authors: G. A. Doschek (115 shared papers)K. G. Widing (20 shared papers)J. F. Seely (90 shared papers)G. A. Doschek (47 shared papers)E. Landi (32 shared papers)W. E. Behring (31 shared papers)A. K. Bhatia (27 shared papers)K. Wilhelm (24 shared papers)
Journals: The Astrophysical Journal (166 papers)Journal of the Optical Society of America B (22 papers)Journal of Applied Physics (20 papers)The Astrophysical Journal Supplement Series (16 papers)Review of Scientific Instruments (16 papers)
Partner nations: United States Israel Germany

In The Last Decade

U. Feldman

454 papers receiving 11.2k citations

U. Feldman's Hit Papers

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Elemental abundances in the upper solar atmosphere 1992 · 417 citations

Peers

Countries citing papers authored by U. Feldman

Since Specialization

Citations

This map shows the geographic impact of U. Feldman'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 U. Feldman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites U. Feldman more than expected).

Fields of papers citing papers by U. Feldman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by U. Feldman. 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 U. Feldman. The network helps show where U. Feldman may publish in the future.

Co-authors

The 25 scholars most cited alongside U. Feldman, 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 U. Feldman Line = papers co-authored together U. Feldman 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 465 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Elemental abundances in the upper solar atmosphere Physica Scripta ·U. Feldman Hit paper breakdown →	1992	417
2	FIRST RESULTS OF THE SUMER TELESCOPE AND SPECTROMETER ON SOHO – I. Spectra and Spectroradiometry Solar Physics ·K. Wilhelm, Philippe Lemaire, W. Curdt, U. Schühle, E. Marsch, A. I. Poland, S. D. Jordan, R. J. Thomas, Donald M. Hassler, M. C. E. Huber, J. C. Vial, M. Kühne, Oswald H. W. Siegmund, A. H. Gabriel, J. G. Timothy, M. Grewing, U. Feldman, J. Hollandt, P. Brekke	1997	255
3	The SUMER spectral atlas of solar-disk features Astronomy and Astrophysics ·W. Curdt, P. Brekke, U. Feldman, K. Wilhelm, B. N. Dwivedi, U. Schühle, Philippe Lemaire	2001	233
4	The potential for plasma diagnostics from stellar extreme-ultraviolet observations The Astrophysical Journal Supplement Series ·U. Feldman, P. Mandelbaum, J. F. Seely, G. A. Doschek, H. Gursky	1992	210
5	The solar spectrum - Wavelengths and identifications from 160 to 770 angstroms The Astrophysical Journal ·W. E. Behring, L. Cohen, G. A. Doschek, U. Feldman	1976	174
6	The Solar Spectrum: Wavelengths and Identifications from 60 TO 385 Angstroms The Astrophysical Journal ·W. E. Behring, Leonard Cohen, U. Feldman	1972	173
7	Doppler wavelength shifts of transition zone lines measured in SKYLAB solar spectra The Astrophysical Journal ·G. A. Doschek, J. D. Bohlin, U. Feldman	1976	141
8	Element Abundances in the Upper Atmospheres of the Sun and Stars: Update of Observational Results Physica Scripta ·U. Feldman, J. M. Laming	2000	139
9	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 ·U. Feldman, W. E. Behring, W. Curdt, U. Schühle, K. Wilhelm, Philippe Lemaire, T. M. Moran	1997	138
10	On the unresolved fine structures of the solar atmosphere in the 30,000-200,000 K temperature region The Astrophysical Journal ·U. Feldman	1983	125
11	High-resolution X-ray spectra of solar flares. III - General spectral properties of X1-X5 type flares The Astrophysical Journal ·G. A. Doschek, U. Feldman, R. W. Kreplin, L. Cohen	1980	115
12	Wavelengths and Intensities of Spectral Lines in the 171–211 and 245–291 Å Ranges from Five Solar Regions Recorded by the Extreme‐Ultraviolet Imaging Spectrometer (EIS) onHinode The Astrophysical Journal Supplement Series ·C. M. Brown, U. Feldman, J. F. Seely, C. M. Korendyke, Hirohisa Hara	2008	110
13	Coronal Composition above the Solar Equator and the North Pole as Determined from Spectra Acquired by the SUMER Instrument onSOHO The Astrophysical Journal ·U. Feldman, U. Schühle, K. G. Widing, J. M. Laming	1998	110
14	The emission-line spectrum above the limb of the quiet sun - 1175-1940 A The Astrophysical Journal Supplement Series ·G. A. Doschek, M. E. Vanhoosier, J. D. F. Bartoe, U. Feldman	1976	106
15	EUV spectra of highly-charged ions W⁵⁴⁺–W⁶³⁺relevant to ITER diagnostics Journal of Physics B Atomic Molecular and Optical Physics ·Yuri Ralchenko, Ilija Draganić, Jun Tan, J. D. Gillaspy, J. M. Pomeroy, Joseph Reader, U. Feldman, Glenn Holland	2008	105
16	Ultraviolet and X-ray Spectroscopy of the Solar Atmosphere Cambridge University Press eBooks ·K. J. H. Phillips, U. Feldman, E. Landi	2008	98
17	CHIANTI—An Atomic Database for Emission Lines. V. Comparison with an Isothermal Spectrum Observed with SUMER The Astrophysical Journal Supplement Series ·E. Landi, U. Feldman, K. P. Dere	2002	96
18	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 ·U. Feldman, G. A. Doschek, U. Schühle, K. Wilhelm	1999	96
19	Plasma diagnostics using high-resolution spectroscopic techniques† Journal of the Optical Society of America* ·U. Feldman, G. A. Doschek	1977	95
20	The SUMER spectral atlas of solar coronal features Astronomy and Astrophysics ·W. Curdt, E. Landi, U. Feldman	2004	92

About U. Feldman

U. Feldman is a scholar working on Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Mechanics of Materials, Spectroscopy and Nuclear and High Energy Physics, having authored 465 papers that have together received 11.9k indexed citations. Recurring topics across this work include Solar and Space Plasma Dynamics (235 papers), Atomic and Molecular Physics (135 papers), Astro and Planetary Science (127 papers), Laser-induced spectroscopy and plasma (118 papers), Stellar, planetary, and galactic studies (111 papers), Ionosphere and magnetosphere dynamics (75 papers), Mass Spectrometry Techniques and Applications (53 papers) and Laser-Plasma Interactions and Diagnostics (34 papers). The work is most often cited by research in Astronomy and Astrophysics (6.9k citations), Atomic and Molecular Physics, and Optics (4.8k citations), Radiation (1.2k citations), Mechanics of Materials (2.9k citations) and Nuclear and High Energy Physics (1.2k citations). U. Feldman has collaborated with scholars based in United States, Israel and Germany. Frequent co-authors include G. A. Doschek, K. G. Widing, J. F. Seely, G. A. Doschek, E. Landi, W. E. Behring, A. K. Bhatia, K. Wilhelm, Leonard Cohen and C. M. Brown. Their work appears in journals such as The Astrophysical Journal, Journal of the Optical Society of America B, Journal of Applied Physics, The Astrophysical Journal Supplement Series and Review of Scientific Instruments.

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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