Projects & Publications
The following list describes projects and consulting activities as well as own investigations, partly in cooperation with the professional astronomy since more than 25 years. Some texts are in German.
1. Different topics:
Beginner and students support.pdf
Einfuehrung in die Spektroskopie.pdf
Helium in der Chromosphaere der Sonne.pdf
BACHES-Echelle-Spektrograf am CFG Wuppertal.pdf
2. Different stars
Spektren planetarischer Nebel.pdf
Halpha Observations of HR2142.pdf
Line profile observations of beta Lyrae.pdf
The Periastron Passage of alpha Oph.pdf
Periode und Amplitude der Radialgeschwindigkeit des Cepheiden Polaris.pdf
Die Spektren der hellsten Wolf-Rayet-Sterne im Sternbild Cygnus.pdf
3. φ Persei
H-alpha-Kurzzeitvariationen in phi Per.pdf
Line profile observations of phi Per.pdf
4. π Aqrii
Monitoring Halpha EW and V/R.pdf
Evolution of the disk(Yael Naze).pdf
Current Minimum of the Halpha EW.pdf
Period analysis of the Halpha line profile variation.pdf
Doppler tomography of the circumstellar disk.pdf
5. δ Scorpii
Spectroscopy of the growing circumstellar disk.pdf
Pro-am monitoring from July 2000 to May 2015.pdf
Visual brightness Vmag and Halpha equivalent width EW.pdf
Observation of non-radial pulsation.avi
Ein Doppelstern mit Gasscheibe (SuW).pdf
Visuelle Helligkeit Vmag und Halpha Äquivalentbreite EW.pdf
The 2011 Periastron Passage.pdf
Report of the periastron passage campaign 2011.pdf
Periodic behavior of the HeI6678 emission.pdf
Variability of the HeI6678 emission.pdf
Spektroskopische Beobachtungen der Halpha und der HeI6678-Emission.pdf
HeI 6678 Double Peak Emission Profile Observation 2018-2020
6. 28 Tauri (Plejone)
Hα-Spektroskopie & Vmag Variationen an 28 Tauri (German)
Periastron monitoring of Pleione November 2019 to February 2020
Precession of the disk_Study of the Halpha line profile.pdf
Halpha profile evolution (M. Leonardi).gif
The Periastron Passages 2012-2015.pdf
Intermediate Results of the Campaign 2014.pdf
Long-term behavior of the Halpha emission.pdf
7. zeta Tauri
Long-term monitoring of the radial velocity of HeI6678
VtoR Variability of the Halpha Emission.pdf
Variability of the Halpha emission line profile.pdf
Recent Observations of zeta Tau.pdf
Periodic Phases of the VtoR Variability.pdf
Monitoring the Radial velocity.pdf
Long-term Radial Velocity of the HeI6678 Line.pdf
Halpha Short-Time Variations.pdf
Halpha Observations of zeta Tau.pdf
Cyclic Variability of the circumstellar Disk.pdf
Mass and precession of the disk.pdf
Monitoring of the Halpha emission profile.pdf
Disk precession variation seen at the sky.AVI
Observations of non-radial pulsations of HeI4713.pdf
Non-radial pulsations (NRP) or co-rotating clouds.pdf
8. P Cygni
Continuation of the international observing campaign.pdf
Report zur BAV-AAVSO-ASPA-PCygni-Langzeitstudie.pdf
Intermediate Report on January 2013 Campaign Photometry and Spectroscopy.pdf
Intermediate Report December 2012.pdf
Monitoring of the HeI 6678 absorption line intensity (08/2017).pdf
Monitoring of the HeI 6678 absorption line intensity (11/2015).pdf
Halpha and HeI6678 Monitoring of P Cyg.pdf
Period analysis of the Halpha equivalent width.pdf
International Observing Campaign Photometry and Spectroscopy.pdf
Campaign Intermediate report 2016
Long-term Monitoring of the Halpha Line Strength
Periodic Variation of the Intrinsic Halpha-Line Flux
9. VV Cephei
Periodic Halpha emission in the eclipsing binary VV Cep.pdf
The long-term binary system VV Cep.pdf
Ein Projekt fuer mehrere Jahre(F. Walter).pdf
VV Cep Observing Campaign Details.pdf
VV Cephei Eclipse Campaign 2017-19.pdf
The Symposium on Telescope Science 2015.pdf
Oservation of the Halpha emission in VV Cep.pdf
Halpha Monitoring vs. V-Brightness
Photometry and Halpha Emission Flux
Brightness & Spectroscopic campaign of the BAV
Campaign to estimate the disk diameter
Comprehensive forum of eclipsing campaign details
Forum for high-dissolved observation
Spectroscopic Monitoring of the 2017–2019 Eclipse of VV Cephei
10. γ Cassiopeia
Campaign radial velocity HeI6678 (Data).txt
Campaign Monitoring Radial Velocity of HeI6678.pdf
HeI6678 line profile disturbances (November 2014).pdf
Halpha radial velocity observations.pdf
Monitoring Halpha emission versus Vmag.pdf
Relationship between X-ray emission and its circumstellar environment.pdf
Halpha and He6678 emission activities correlated.pdf
Korrelation von Halpha und He6678 Emissionsaktivitaet.pdf
V-Brightness and Halpha Spectroscopy.pdf
HeI 6678 VtoR and EW Campaign.pdf
Possible Hel 6678 Emission Activity (March 2007).pdf
HeI 6678 Emission Activity.pdf
Halpha emission behavior between 1976 and 2006.pdf
Halpha emission and Vmag correlations as probes of Be star disks.pdf
The relationship between γ Cassiopeiae's X-ray emission and its circumstellar environment (Part I)
The relationship between γ Cassiopeiae's X-ray emission and its circumstellar environment (Part II)
The periodic behavior of the HeI6678 emission line in γ Cas
11. Observation of non-radial pulsations
Observations of non-radial pulsations of HeI4713 in zeta Tau.pdf
Observation report of non-radial pulsations of delta Sco.pdf
Non-radial Pulsations of gamma Cas.pdf
Nicht-radiale Pulsationen des Be-Sterns zeta Oph.pdf
Non-radial pulsations of zeta Oph.pdf
Animated GIF´s of models of stars with non radial pulsations
Stellar pulsation illustrated with glpulse3d (video)