W. Rammacher

449 total citations
17 papers, 321 citations indexed

About

W. Rammacher is a scholar working on Astronomy and Astrophysics, Statistical and Nonlinear Physics and Atmospheric Science. According to data from OpenAlex, W. Rammacher has authored 17 papers receiving a total of 321 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Astronomy and Astrophysics, 2 papers in Statistical and Nonlinear Physics and 2 papers in Atmospheric Science. Recurrent topics in W. Rammacher's work include Solar and Space Plasma Dynamics (16 papers), Stellar, planetary, and galactic studies (12 papers) and Astro and Planetary Science (7 papers). W. Rammacher is often cited by papers focused on Solar and Space Plasma Dynamics (16 papers), Stellar, planetary, and galactic studies (12 papers) and Astro and Planetary Science (7 papers). W. Rammacher collaborates with scholars based in Germany, United States and Poland. W. Rammacher's co-authors include P. Ulmschneider, Z. E. Musielak, M. Cuntz, Diaa E. Fawzy, K. Stȩpień, C. Beck, Steven H. Saar, W. Schmidt, W. Kalkofen and R. Rezaei and has published in prestigious journals such as The Astrophysical Journal, Astronomy and Astrophysics and Astronomische Nachrichten.

In The Last Decade

W. Rammacher

16 papers receiving 316 citations

Peers

W. Rammacher

INSTR

AMPO

A. López Ariste France

Antonino Petralia Italy

Gary Kilper United States

S. H. Saar United States

K. Janßen Italy

P. Schwartz Czechia

A. Fossum Norway

D. Elmore United States

Balázs Pintér United Kingdom

Timothy J. Dennis United States

A. López Ariste France

W. Rammacher

296 ×0.9

24 ×1.1

11 ×0.5

29 ×1.7

INSTR

11 ×0.8

AMPO

Citations per year, relative to W. Rammacher W. Rammacher (= 1×) peers A. López Ariste

Countries citing papers authored by W. Rammacher

Since Specialization

Citations

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

Fields of papers citing papers by W. Rammacher

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W. Rammacher

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

All Works

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17 of 17 papers shown

Beck, C. & W. Rammacher. (2010). Linear wavelength correlation matrices of photospheric and chromospheric spectral lines. Springer Link (Chiba Institute of Technology). 5 indexed citations

Beck, C., W. Schmidt, R. Rezaei, & W. Rammacher. (2007). The signature of chromospheric heating in Ca II H spectra. Springer Link (Chiba Institute of Technology). 31 indexed citations

Rammacher, W., et al.. (2007). Simultaneous Observations of Solar Ca II H and Ca II 8662 lines and Numerical Simulation of these lines. Astronomische Nachrichten. 328(7). 657. 1 indexed citations

Cuntz, M., W. Rammacher, & Z. E. Musielak. (2007). Acoustic Heating of the Solar Chromosphere: Present Indeed and Locally Dominant. The Astrophysical Journal. 657(1). L57–L60. 28 indexed citations

Rammacher, W. & M. Cuntz. (2005). Definition and significance of average temperatures in time-dependent solar chromosphere models. Astronomy and Astrophysics. 438(2). 721–726. 11 indexed citations

Rammacher, W.. (2005). How Strong is the Dependence of the Solar Chromosphere upon the Convection Zone. 596.

Rammacher, W., Diaa E. Fawzy, P. Ulmschneider, & Z. E. Musielak. (2005). Fast Method for Calculating Chromospheric Caiiand MgiiRadiative Losses. The Astrophysical Journal. 631(2). 1113–1119. 4 indexed citations

Ulmschneider, P., W. Rammacher, Z. E. Musielak, & W. Kalkofen. (2005). On the Validity of Acoustically Heated Chromosphere Models. The Astrophysical Journal. 631(2). L155–L158. 31 indexed citations

Rammacher, W. & P. Ulmschneider. (2003). Time‐dependent Ionization in Dynamic Solar and Stellar Atmospheres. I. Methods. The Astrophysical Journal. 589(2). 988–1008. 26 indexed citations

10.

Rammacher, W. & M. Cuntz. (2003). Acoustic Heating Models for the Basal Flux Star Ceti Including Time-dependent Ionization: Results for Ca ii and Mg ii Emission. The Astrophysical Journal. 594(1). L51–L54. 9 indexed citations

11.

Fawzy, Diaa E., K. Stȩpień, P. Ulmschneider, W. Rammacher, & Z. E. Musielak. (2002). Acoustic and magnetic wave heating in stars. Astronomy and Astrophysics. 386(3). 994–1000. 20 indexed citations

12.

Fawzy, Diaa E., P. Ulmschneider, K. Stȩpień, Z. E. Musielak, & W. Rammacher. (2002). Acoustic and magnetic wave heating in stars. Astronomy and Astrophysics. 386(3). 983–993. 31 indexed citations

13.

Fawzy, Diaa E., W. Rammacher, P. Ulmschneider, Z. E. Musielak, & K. Stȩpień. (2002). Acoustic and magnetic wave heating in stars. Astronomy and Astrophysics. 386(3). 971–982. 45 indexed citations

14.

Cuntz, M., W. Rammacher, P. Ulmschneider, Z. E. Musielak, & Steven H. Saar. (1999). Two‐Component Theoretical Chromosphere Models for K Dwarfs of Different Magnetic Activity: Exploring the CaiiEmission–Stellar Rotation Relationship. The Astrophysical Journal. 522(2). 1053–1068. 41 indexed citations

15.

Cuntz, M., W. Rammacher, & P. Ulmschneider. (1994). Chromospheric heating and metal deficiency in cool giants: Theoretical results versus observations. The Astrophysical Journal. 432. 690–690. 28 indexed citations

16.

Rammacher, W. & P. Ulmschneider. (1992). Acoustic waves in the solar atmosphere. IX - Three minute pulsations driven by shock overtaking. 253(2). 586–600. 9 indexed citations

17.

Rammacher, W. & M. Cuntz. (1991). Effects of Mg II and Ca II ionization on ab-initio solar chromosphere models. NASA Technical Reports Server (NASA). 250(1). 212–219. 1 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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