| |
 |
| Paper: |
Helium-Rich Subdwarf B Stars |
| Volume: |
391, Hydrogen-Deficient Stars |
| Page: |
261 |
| Authors: |
Ahmad, A.; Jeffery, C.S. |
| Abstract: |
A very small fraction of subluminous B stars have spectra dominated by lines of neutral helium. Although these helium-rich subdwarf B (HesdB) stars have been perceived as a single class, their properties are in fact very diverse, including both apparently single stars and a close binary pair – the double He-sdB system PG1544+488. We briefly review what is known about the properties of He-sdB stars, including some interesting individual objects, and how these fit with various ideas concerning their origins. |
|
|
|
|
|
