Researchers propose new formation model for massive hot subdwarf stars
Construct the evolution model of SMSS J1920. The initial progenitor cell mass is 1.8 M where Z = 0.001. The resulting sdO/B has a mass of 0.553 Mthe envelope quality …
Construct the evolution model of SMSS J1920. The initial progenitor cell mass is 1.8 M where Z = 0.001. The resulting sdO/B has a mass of 0.553 Mthe envelope quality …
Bisbee, Arizona — Dr. John Vines, with dusty boots and heaving lungs, searches for the last survivors of a three-million-year-old lizard population on a desolate mountaintop boulder in Arizona — …