16 citations · 31 across the 6 of their papers we have counts for
3 papers · 1 filter
Colour evolution of Betelgeuse and Antares over two millennia, derived from historical records, as a new constraint on mass and age
Ralph Neuhäuser, Guillermo Torres, Markus Mugrauer +4
After core hydrogen burning, massive stars evolve from blue-white dwarfs to red supergiants by expanding, brightening, and cooling within few millennia. We discuss a previously neg…
Novae, supernovae, or something else? -- (Super-)nova highlights from Hoffmann & Vogt are quite certainly comets (AD 668 and 891)
Ralph Neuhaeuser, Dagmar L. Neuhaeuser, Jesse Chapman
Galactic novae and supernovae can be studied by utilizing historical observations, yielding explosion time, location on sky~etc. Recent publications by Hoffmann & Vogt present CVs,…
New sunspots and aurorae in the historical Chinese text corpus? Comments on uncritical digital search applications
D. L. Neuhaeuser, R. Neuhaeuser, J. Chapman
We review some applications of the method of electronic searching for historical observations of sunspots and aurorae in the Chinese text corpus by Hayakawa et al. etc. However, we…