Books
- Spectroscopic Instrumentation–Fundamentals and Guidelines for Astronomers A textbook on the basic principles of astronomical spectroscopy and their practical application.
- The Moon Hoax? – Conspiracy Theories on Trial A popular book about the American landings on the moon – and of the doubts many people have had for forty years as to whether these landings really took place.
Tips and Tricks
Working Texts
- How to clean your optics
- Das Arbeitsprinzip eines Echelle-Spektrografen
- Photonen und Elektronen – Zur Bewertung von CCD-Kameras
- Das ganze Spektrum in einem Schuss – Echelle-Spektroskopie für Amateurastronomen
- Das lokale Seeing bekämpfen
- Messen wie die Profis – Ein Spalt-Spektrograph maximaler Effizienz
- Vom Fundament zur Datenerfassung – Ein Observatorium für Fortgeschrittene
- Frühjahrsputz im Teleskop
- Anmerkungen zu statistischen Fehlern in Äquivalentbreiten
- Fokussierung einer Cassegrain-Optik mittels Linearaktuator
- Zum periodischen Fehler eines Schneckengetriebes
- Aufbereitung der STScI-Steuerelektronik – M. Maas & F. Rings – Berufskolleg Hennef
Reports
- Astronomy for the next generation – The Waldbröl school observatory
- Mega-Konstellationen im Orbit
- Nachwuchsprobleme
- Reise in die Vergangenheit eines Hobbyastronomen
- Eine Fachgruppe wird frisch gemacht
- Leben im All?
- SPEKTRUM – eine Online-Zeitschrift der Fachgruppe SPEKTROSKOPIE
- Verkaufen um jeden Preis?
- Fische, Forschung, Georges Lemaître
- Deciphering Starlight
- Einem Wolf-Rayet-Stern auf den Zahn gefühlt
- Spektroskopische Abenteuer – Ein goldenes Zeitalter für Amateurastronomen
- Stellar Winds Above Atlantic Clouds
- Profis und Amateure im Dialog – Eine Tagung zur Spektroskopie
- Sternwindtango auf Teneriffa – Eine professionelle Langzeitbeobachtung mit Amateuren
- Mein Treffen mit Alexander Gerst – Lina Böcker
- DLR Praktikumsbericht – Pia Mach – Gymnasium Waldbröl
- DLR Praktikumsbericht – Anna Schüller – Gymnasium Waldbröl
Professional Publications
- The orbit and stellar masses of the archetypecolliding-wind binary WR 140
- An extensive spectroscopic time series of three Wolf-Rayet stars – II. A search for wind asymmetries in the dust-forming WC7 binary WR137
- BRITE-Constellation high-precision time-dependent photometry of the early-O-type supergiant zeta Puppis unveils the photospheric drivers of its small- and large-scale wind structures
- Off-the-shelf Echelle Spectroscopy: Two Devices on the Test Block
- An extensive spectroscopic time-series of three Wolf-Rayet stars. I. The lifetime of large-scale structures in the wind of WR 134
- World-wide amateur observations – A viable future of massive star research
- The Results of the 2013 Pro-Am Wolf-Rayet Campaign
- A coordinated X-ray and optical campaign of the nearest massive eclipsing binary, δ Orionis
- Spectroscopic variability of two Oe stars
- The 2011 Periastron Passage of the Be Binary delta Scorpii
- Fighting for Telescope Time? Use the Amateurs!
- Spectroscopy of the archetype colliding-wind binary WR 140
- A focus for hot stars – The German STScI
- Stellar Winds in Interaction – Conference Proceedings – Portugal 2010
- Spectroscopic follow-up of WR140 during the 2009 January periastron passage
- The Mons campaign on OB stars
- Spectroscopic madness – A golden age for amateurs
- The EnMAP hyperspectral imaging spectrometer
- Remarks on statistical errors of equivalent widths
- Coordinated monitoring of the eccentric O-star binary ιOrionis…
- Continuum optical circular polarisation in the young O star θ¹ Orionis C?
- An investigation of the large-scale variability of the apparently single Wolf-Rayet star WR 1
- Spectropolarimetry of the WR+O Binary γ² Velorum during Periastron Passage
- A 2.3 Day Periodic Variability in the Apparently Single Wolf-Rayet Star WR 134…
- Unusual Emission-Line Profile Variations in γ² Velorum
- The William-Wehlau Spectropolarimeter: Observing Hot Stars in All Four Stokes Parameters
- A comprehensive variability study of the enigmatic WN8 stars – Final results
- Outmoving Clumps in the Wind of the Hot O Supergiant ζ Puppis
- Spectropolarimetry – A new Window for Stellar Physics
- Analysis of IUE spectrograms for Be stars
