Gunther Witzel

7.2k total citations · 1 hit paper
69 papers, 1.3k citations indexed

About

Gunther Witzel is a scholar working on Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics and Nuclear and High Energy Physics. According to data from OpenAlex, Gunther Witzel has authored 69 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Astronomy and Astrophysics, 19 papers in Atomic and Molecular Physics, and Optics and 18 papers in Nuclear and High Energy Physics. Recurrent topics in Gunther Witzel's work include Astrophysical Phenomena and Observations (42 papers), Pulsars and Gravitational Waves Research (24 papers) and Adaptive optics and wavefront sensing (18 papers). Gunther Witzel is often cited by papers focused on Astrophysical Phenomena and Observations (42 papers), Pulsars and Gravitational Waves Research (24 papers) and Adaptive optics and wavefront sensing (18 papers). Gunther Witzel collaborates with scholars based in United States, Germany and Spain. Gunther Witzel's co-authors include A. Eckart, A. M. Ghez, Tuan Do, R. Schödel, M. Zamaninasab, Rainer Buchholz, Smadar Naoz, K. Mužić, C. Straubmeier and M. García-Marín and has published in prestigious journals such as Physical Review Letters, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

Gunther Witzel

65 papers receiving 1.3k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Testing General Relativity with Stellar Orbits around the Supermassive Black Hole in Our Galactic Center

2017 110 citations Aurélien Hees, Tuan Do et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gunther Witzel United States	23	1.3k	483	123	108	100	69	1.3k
S. D. Hornstein United States	12	1.4k 1.1×	445 0.9×	156 1.3×	98 0.9×	85 0.8×	21	1.5k
Barry McKernan United States	26	2.3k 1.8×	484 1.0×	56 0.5×	74 0.7×	90 0.9×	58	2.4k
O. Pfuhl Germany	19	1.4k 1.0×	314 0.7×	153 1.2×	101 0.9×	55 0.6×	51	1.4k
C. Straubmeier Germany	21	1.2k 0.9×	333 0.7×	231 1.9×	164 1.5×	94 0.9×	120	1.4k
Jeremy D. Schnittman United States	20	1.1k 0.8×	468 1.0×	78 0.6×	69 0.6×	109 1.1×	45	1.2k
Jorge Cuadra Chile	26	2.5k 1.9×	431 0.9×	53 0.4×	115 1.1×	118 1.2×	87	2.6k
Frederick K. Baganoff United States	24	2.0k 1.5×	920 1.9×	67 0.5×	182 1.7×	249 2.5×	43	2.0k
K. Dodds-Eden Germany	12	1.2k 0.9×	311 0.6×	81 0.7×	90 0.8×	78 0.8×	15	1.2k
P. Chris Fragile United States	24	1.5k 1.2×	610 1.3×	35 0.3×	162 1.5×	165 1.6×	63	1.6k
Michal Dovčiak Czechia	27	1.9k 1.5×	805 1.7×	135 1.1×	285 2.6×	145 1.4×	112	2.0k

Countries citing papers authored by Gunther Witzel

Since Specialization

Citations

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

Fields of papers citing papers by Gunther Witzel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gunther Witzel

This figure shows the co-authorship network connecting the top 25 collaborators of Gunther Witzel. A scholar is included among the top collaborators of Gunther Witzel 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 Gunther Witzel. Gunther Witzel is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Fellenberg, S. D. von, Joseph M. Michail, S. P. Willner, et al.. (2025). Mid-infrared Extinction toward the Galactic Center. The Astrophysical Journal. 995(2). 215–215.

Do, Tuan, Gregory D. Martinez, A. M. Ghez, et al.. (2024). New Evidence for a Flux-independent Spectral Index of Sgr A* in the Near-infrared. The Astrophysical Journal. 977(2). 228–228. 3 indexed citations

Marchili, N., Gunther Witzel, & M. F. Aller. (2024). Sun-related variability in the light curves of compact radio sources. Astronomy and Astrophysics. 694. A96–A96.

Do, Tuan, Gunther Witzel, A. M. Ghez, et al.. (2023). Near-infrared Flux Distribution of Sgr A* from 2005–2022: Evidence for an Enhanced Accretion Episode in 2019. The Astrophysical Journal Letters. 954(1). L33–L33. 6 indexed citations

Boyce, Hope, Daryl Haggard, Gunther Witzel, et al.. (2022). Multiwavelength Variability of Sagittarius A* in 2019 July. The Astrophysical Journal. 931(1). 7–7. 10 indexed citations

Dallilar, Yigit, S. D. von Fellenberg, P. T. de Zeeuw, et al.. (2021). Flaremodel: An open-source Python package for one-zone numerical modelling of synchrotron sources. arXiv (Cornell University). 3 indexed citations

Martinez, Gregory D., Aurélien Hees, A. M. Ghez, et al.. (2019). Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors: with Applications from Black Holes to Planets. The Astronomical Journal. 158(1). 4–4. 19 indexed citations

Sakai, Shoko, Jessica R. Lu, A. M. Ghez, et al.. (2019). The Galactic Center: An Improved Astrometric Reference Frame for Stellar Orbits around the Supermassive Black Hole. The Astrophysical Journal. 873(1). 65–65. 17 indexed citations

Naoz, Smadar, A. M. Ghez, Aurélien Hees, et al.. (2018). Confusing Binaries: The Role of Stellar Binaries in Biasing Disk Properties in the Galactic Center. The Astrophysical Journal Letters. 853(2). L24–L24. 20 indexed citations

10.

Fazio, G. G., Joseph L. Hora, Gunther Witzel, et al.. (2018). Multiwavelength Light Curves of Two Remarkable Sagittarius A* Flares. The Astrophysical Journal. 864(1). 58–58. 17 indexed citations

11.

Chu, Devin S., Tuan Do, Aurélien Hees, et al.. (2018). Investigating the Binarity of S0-2: Implications for Its Origins and Robustness as a Probe of the Laws of Gravity around a Supermassive Black Hole. The Astrophysical Journal. 854(1). 12–12. 29 indexed citations

12.

Witzel, Gunther, Breann Sitarski, A. M. Ghez, et al.. (2017). The Post-periapsis Evolution of Galactic Center Source G1: The Second Case of a Resolved Tidal Interaction with a Supermassive Black Hole. eScholarship (California Digital Library). 29 indexed citations

13.

Sitarski, Breann, A. M. Ghez, M. Morris, et al.. (2015). Galactic Center Source G1 and other G2-like Sources. AAS. 225. 1 indexed citations

14.

Sitarski, Breann, Tuan Do, Gunther Witzel, et al.. (2014). Is G2 Alone? Other Infrared Sources in the Central 0.04 Parsecs of the Galactic Center. 223. 1 indexed citations

15.

Witzel, Gunther, A. M. Ghez, M. Morris, et al.. (2014). DETECTION OF GALACTIC CENTER SOURCE G2 AT 3.8 μm DURING PERIAPSE PASSAGE. The Astrophysical Journal Letters. 796(1). L8–L8. 60 indexed citations

16.

García-Marín, M., A. Eckart, A. Weiß, et al.. (2011). Sub-Millimeter View of the Galactic Center. ASPC. 439. 315. 1 indexed citations

17.

Mužić, K., A. Eckart, R. Schödel, et al.. (2010). Comet-shaped sources at the Galactic center Evidence of a wind from the central 0.2 pc. Kölner Universitäts PublikationsServer (Universität zu Köln). 31 indexed citations

18.

Witzel, Gunther, A. Eckart, R. Lenzen, & C. Straubmeier. (2010). On the Instrumental Polarisation of NAOS-CONICA. Max Planck Institute for Plasma Physics. 142. 5–7. 1 indexed citations

19.

Witzel, Gunther, A. Eckart, Rainer Buchholz, et al.. (2010). The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT. Astronomy and Astrophysics. 525. A130–A130. 29 indexed citations

20.

Eckart, A., F. K. Baganoff, M. Morris, et al.. (2009). Modeling mm- to X-ray flare emission from Sagittarius A*. Springer Link (Chiba Institute of Technology). 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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