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astro-ph.SR2024
Deneb and the alpha Cygni Variables
Joyce A. Guzik, Brian Kloppenborg, Jason Jackiewicz
Deneb, the prototype alpha Cygni variable, is a blue-white supergiant that shows irregular variability with quasi-period around 12 days in brightness and radial velocity. Abt et al…
astro-ph.SR2024
Abrupt Periodic Pulsation Resumptions in Deneb
Joyce A. Guzik, Helmut A. Abt, Jason Jackiewicz +1
Deneb (alpha Cygni) is a bright (V magnitude 1.25) blue-white supergiant (spectral type A2 Ia) which shows variability in both radial velocity and photometric measurements. H. Abt…