A. Hempel

446 total citations
16 papers, 127 citations indexed

About

A. Hempel is a scholar working on Astronomy and Astrophysics, Instrumentation and Mechanics of Materials. According to data from OpenAlex, A. Hempel has authored 16 papers receiving a total of 127 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Astronomy and Astrophysics, 5 papers in Instrumentation and 4 papers in Mechanics of Materials. Recurrent topics in A. Hempel's work include Stellar, planetary, and galactic studies (5 papers), Astronomy and Astrophysical Research (5 papers) and Thin-Film Transistor Technologies (4 papers). A. Hempel is often cited by papers focused on Stellar, planetary, and galactic studies (5 papers), Astronomy and Astrophysical Research (5 papers) and Thin-Film Transistor Technologies (4 papers). A. Hempel collaborates with scholars based in Germany, South Africa and United States. A. Hempel's co-authors include M. Härting, Christopher J. Arendse, D. Knoesen, H. Lorenz, G. Kögel, P. Sperr, F. Eichhorn, W. Triftshäuser, P. Reichel and D.T. Britton and has published in prestigious journals such as Physical review. B, Condensed matter, Monthly Notices of the Royal Astronomical Society and Astronomy and Astrophysics.

In The Last Decade

A. Hempel

16 papers receiving 117 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
A. Hempel Germany	8	53	47	45	26	26	16	127
F. Abe Japan	9	95 1.8×	31 0.7×	49 1.1×	3 0.1×	23 0.9×	19	309
Joshua Schroeder Germany	6	82 1.5×	47 1.0×	98 2.2×	50 1.9×	23 0.9×	9	214
Jie Ma China	10	17 0.3×	168 3.6×	62 1.4×	9 0.3×	6 0.2×	52	264
S. Hansen United States	7	35 0.7×	41 0.9×	9 0.2×	58 2.2×	3 0.1×	22	147
Kiran Prasai United States	7	81 1.5×	45 1.0×	23 0.5×	5 0.2×		17	142
David F. Hilyard United States	5	22 0.4×	33 0.7×	50 1.1×	7 0.3×	36 1.4×	13	94
Linli Xie United States	8	41 0.8×	286 6.1×	28 0.6×	27 1.0×	4 0.2×	31	341
B. Sassolas France	3	24 0.5×	32 0.7×	75 1.7×	16 0.6×		3	161
Kacem El Hadi France	9	27 0.5×	215 4.6×	33 0.7×	2 0.1×	14 0.5×	35	289
June L. Tveekrem United States	6	22 0.4×	22 0.5×	25 0.6×	3 0.1×	6 0.2×	12	103

Countries citing papers authored by A. Hempel

Since Specialization

Citations

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

Fields of papers citing papers by A. Hempel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Hempel

This figure shows the co-authorship network connecting the top 25 collaborators of A. Hempel. A scholar is included among the top collaborators of A. Hempel 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 A. Hempel. A. Hempel 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

Lemon, Cameron, F. Courbin, T. Anguita, et al.. (2023). Nine lensed quasars and quasar pairs discovered through spatially extended variability in Pan-STARRS. Astronomy and Astrophysics. 682. A47–A47. 3 indexed citations

Launhardt, R., André Müller, S. S. Brems, et al.. (2022). Radial Velocity Survey for Planets around Young stars (RVSPY). Astronomy and Astrophysics. 667. A63–A63. 7 indexed citations

Ferragamo, A., R. Barrena, J. A. Rubiño-Martín, et al.. (2021). Velocity dispersion and dynamical mass for 270 galaxy clusters in thePlanckPSZ1 catalogue. Astronomy and Astrophysics. 655. A115–A115. 11 indexed citations

Arriba, L. Peralta de, M. Balcells, Ignacio Trujillo, et al.. (2015). Constraints on the evolutionary mechanisms of massive galaxies sincez ∼ 1 from their velocity dispersions. Monthly Notices of the Royal Astronomical Society. 453(1). 704–720. 7 indexed citations

Schaerer, D., A. Hempel, Eiichi Egami, et al.. (2007). EROs found behind lensing clusters. Astronomy and Astrophysics. 476(1). 97–97. 4 indexed citations

Pelló, R., Johan Richard, D. Schaerer, et al.. (2007). Galaxies at Z>7: Probing galaxy formation with the new generation of NIR instruments. 29. 132–134. 1 indexed citations

Handler, G., W. W. Weiß, E. Paunzen, et al.. (2002). The pulsational behaviour of the rapidly oscillating Ap star HD 122970 during two photometric multisite campaigns. Monthly Notices of the Royal Astronomical Society. 330(1). 153–159. 14 indexed citations

Britton, D.T., M. Härting, A. Hempel, et al.. (2002). Positron states in hydrogenated amorphous silicon. Journal of Non-Crystalline Solids. 299-302. 249–253. 4 indexed citations

Härting, M., D.T. Britton, R. Bucher, et al.. (2002). Influence of growth temperature on the microcrystallinity and native defect structure of hydrogenated amorphous silicon. Journal of Non-Crystalline Solids. 299-302. 103–107. 8 indexed citations

10.

Härting, M., et al.. (2001). Defect Structural Characterisation of Plasma-Sprayed Bioactive Ceramic Coatings. Materials science forum. 363-365. 502–504. 4 indexed citations

11.

Hempel, A., M. Härting, D. Knoesen, et al.. (2001). Annealing Effects in Hydrogenated Amorphous Silicon Layers. Materials science forum. 363-365. 463–465. 2 indexed citations

12.

Hempel, A., M. Härting, G. Kögel, et al.. (2001). Annealing and recrystallization of hydrogenated amorphous silicon. Physical review. B, Condensed matter. 64(7). 29 indexed citations

13.

Šaroun, Jan, F. Eichhorn, A. Hempel, et al.. (1997). SANS investigation of plasma-sprayed materials using a double-crystal diffractometer. Physica B Condensed Matter. 234-236. 1011–1013. 3 indexed citations

14.

Hempel, A., et al.. (1996). A neutron double-crystal diffractometer with a position sensitive detector for small-angle scattering studies. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 381(2-3). 466–471. 7 indexed citations

15.

Eichhorn, F., et al.. (1995). Hydrating cement pastes as a complex disordered system. Physica Scripta. T57. 184–189. 8 indexed citations

16.

Hempel, A., et al.. (1992). Influence of intermediate layers and base materials on adhesion of amorphous carbon and metal-carbon coatings. Diamond and Related Materials. 1(5-6). 563–569. 15 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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