26 citations · 26 across the 2 of their papers we have counts for
2 papers
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…
astro-ph.SR2010★ 26 cited
The Origin of the Exoplanets
Helmut A. Abt
We explore two ways in which objects of planetary masses can form. One is in disk systems like the solar system. The other is in dense clusters where stars and brown dwarfs form. W…