R. E. Sonntag

745 total citations
16 papers, 404 citations indexed

About

R. E. Sonntag is a scholar working on Aerospace Engineering, Statistical and Nonlinear Physics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, R. E. Sonntag has authored 16 papers receiving a total of 404 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Aerospace Engineering, 6 papers in Statistical and Nonlinear Physics and 5 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in R. E. Sonntag's work include Advanced Thermodynamics and Statistical Mechanics (6 papers), Spacecraft and Cryogenic Technologies (6 papers) and Quantum, superfluid, helium dynamics (4 papers). R. E. Sonntag is often cited by papers focused on Advanced Thermodynamics and Statistical Mechanics (6 papers), Spacecraft and Cryogenic Technologies (6 papers) and Quantum, superfluid, helium dynamics (4 papers). R. E. Sonntag collaborates with scholars based in United States and South Korea. R. E. Sonntag's co-authors include Gordon John Van Wylen, Claus Borgnakke, Young Min Park, A. Dybbs, William B. Streett, J. A. Sullivan and Young‐Il Kim and has published in prestigious journals such as The Journal of Chemical Physics, Journal of Applied Mechanics and Journal of Chemical & Engineering Data.

In The Last Decade

R. E. Sonntag

16 papers receiving 370 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R. E. Sonntag United States	10	131	127	78	73	62	16	404
W. Leidenfrost United States	14	285 2.2×	322 2.5×	94 1.2×	44 0.6×	139 2.2×	32	655
M. Dix United Kingdom	13	143 1.1×	303 2.4×	67 0.9×	27 0.4×	33 0.5×	22	518
H. Klein Germany	12	52 0.4×	184 1.4×	54 0.7×	49 0.7×	64 1.0×	53	566
Frederick G. Keyes United States	10	47 0.4×	123 1.0×	41 0.5×	32 0.4×	64 1.0×	15	304
Harold J. Höge United States	9	70 0.5×	125 1.0×	53 0.7×	19 0.3×	123 2.0×	20	459
Simón Reif-Acherman Colombia	7	136 1.0×	241 1.9×	38 0.5×	46 0.6×	44 0.7×	26	451
Joseph Hilsenrath United States	6	59 0.5×	90 0.7×	35 0.4×	23 0.3×	149 2.4×	12	420
Newman A. Hall United States	4	99 0.8×	71 0.6×	21 0.3×	91 1.2×	86 1.4×	8	340
O. A. Hougen United States	11	156 1.2×	193 1.5×	26 0.3×	46 0.6×	114 1.8×	15	615
Y. Nagasaka Japan	10	288 2.2×	372 2.9×	45 0.6×	36 0.5×	77 1.2×	44	708

Countries citing papers authored by R. E. Sonntag

Since Specialization

Citations

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

Fields of papers citing papers by R. E. Sonntag

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. E. Sonntag. 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 R. E. Sonntag. The network helps show where R. E. Sonntag may publish in the future.

Co-authorship network of co-authors of R. E. Sonntag

This figure shows the co-authorship network connecting the top 25 collaborators of R. E. Sonntag. A scholar is included among the top collaborators of R. E. Sonntag based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. E. Sonntag. R. E. Sonntag is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Sonntag, R. E. & Claus Borgnakke. (2000). Introduction to engineering thermodynamics. Medical Entomology and Zoology. 20 indexed citations

Kim, Young‐Il, Claus Borgnakke, & R. E. Sonntag. (1997). EQUATION OF STATE FOR 1,1-DIFLUOROETHANE (R152a). International Journal of Energy Research. 21(7). 575–589. 1 indexed citations

Borgnakke, Claus & R. E. Sonntag. (1997). Thermodynamic and Transport Properties. Medical Entomology and Zoology. 42 indexed citations

Sonntag, R. E., et al.. (1996). Thermodynamic properties of ideal gas air. International Journal of Energy Research. 20(9). 771–785. 3 indexed citations

Sonntag, R. E., et al.. (1996). Generalized volumetric behaviour of refrigerants based on a new four-parameter corresponding states correlation. International Journal of Energy Research. 20(9). 811–828. 1 indexed citations

Sonntag, R. E., et al.. (1994). Estimation of transport properties of refrigerants. 1 indexed citations

Park, Young Min & R. E. Sonntag. (1990). A preliminary study of the kalina power cycle in connection with a combined cycle system. International Journal of Energy Research. 14(2). 153–162. 51 indexed citations

Wylen, Gordon John Van, R. E. Sonntag, & A. Dybbs. (1975). Fundamentals of Classical Thermodynamics (2nd Edition). Journal of Applied Mechanics. 42(2). 522–522. 34 indexed citations

Sonntag, R. E., et al.. (1974). Influence of pressure on thermal diffusion in binary and ternary mixtures of helium, nitrogen, and neon. Journal of Chemical & Engineering Data. 19(1). 33–35. 1 indexed citations

10.

Sonntag, R. E. & Gordon John Van Wylen. (1971). Introduction to Thermodynamics: Classical and Statistical. CERN Document Server (European Organization for Nuclear Research). 103 indexed citations

11.

Sonntag, R. E., et al.. (1968). Helium–Hydrogen Liquid–Vapor Equilibrium to 100 atm. The Journal of Chemical Physics. 49(5). 2410–2414. 21 indexed citations

12.

Sullivan, J. A. & R. E. Sonntag. (1967). Compressibilities for helium at temperatures from 70 to 120°K and pressures to 690 atm. Cryogenics. 7(1-4). 13–17. 13 indexed citations

13.

Sonntag, R. E., et al.. (1967). Nitrogen constants for the Benedict-Webb-Rubin equation of state. Journal of Chemical & Engineering Data. 12(1). 73–75. 9 indexed citations

14.

Sonntag, R. E. & Gordon John Van Wylen. (1966). Fundamentals of Statistical Thermodynamics. Medical Entomology and Zoology. 56 indexed citations

15.

Sonntag, R. E., et al.. (1964). Liquid—Vapor Equilibrium in the System Equilibrium Hydrogen—Helium. The Journal of Chemical Physics. 41(8). 2399–2402. 16 indexed citations

16.

Streett, William B., R. E. Sonntag, & Gordon John Van Wylen. (1964). Liquid—Vapor Equilibrium in the System Normal Hydrogen—Helium. The Journal of Chemical Physics. 40(5). 1390–1395. 32 indexed citations

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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