Could the Planets Around HR 8799 be Brown Dwarfs?

We consider the limiting case for orbital stability of the companions to HR 8799. This case is only consistent with ages for the system of {approx}100 Myr, not with the 1 Gyr age proposed from asteroseismology. The discrepancy probably arises because the inclination of the star is smaller than assum...

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Veröffentlicht in:	Astrophysical journal. Letters 2010-10, Vol.721 (2), p.L199-L202
Hauptverfasser:	Moro-Martín, Amaya, Rieke, George H, Su, Kate Y. L
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTROPHYSICS, COSMOLOGY AND ASTRONOMY INCLINATION MASS MATTER PLANETS STARS
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