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| Paper: |
The O-C Diagram of the Subdwarf B Pulsating Star HS 2201+2610: Detection of a Giant Planet? |
| Volume: |
372, 15th European Workshop on White Dwarfs |
| Page: |
369 |
| Authors: |
Silvotti, R.; Schuh, S.; Janulis, R.; Bernabei, S.; Ostensen, R.; Solheim, J.-E.; Bruni, I.; Gualandi, R.; Oswalt, T.; Bonanno, A.; Mignemi, B.; the Whole Earth Telescope Xcov23 collabo |
| Abstract: |
In this article we present the O-C diagram of the hot subdwarf B pulsating star HS 2201+2610 after seven years of observations. A secular increase of the main pulsation period, dP/dt = (1.3 - 0.1) - 10−12, is inferred from the data. Moreover, a further sinusoidal pattern suggests the presence of a low-mass companion (M sin i ≅ 3.5MJup), orbiting the hot star at a distance of about 1.7 AU with a period near 1140 days. |
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