The general relativistic PoyntingRobertson effect: II. A photon flux with nonzero angular momentum

Donato Bini (1, 2, 3) , Andrea Geralico (2, 4) , Robert T Jantzen (2, 5) , Oldřich Semerák (6) , Luigi Stella (7)

1 IAC - Istituto per le Applicazioni del Calcolo "Mauro Picone"
2 International Center for Relativistic Astrophysics- I.C.R.A
3 INFN sezione di Firenze
4 Physics Department
5 Department of Mathematical Sciences
6 Faculty of Mathematics and Physics [Praha/Prague]
7 OAR - INAF - Osservatorio Astronomico di Roma

We study the motion of a test particle in a stationary, axially and reflection symmetric spacetime of a central compact object, as affected by interaction with a test radiation field of the same symmetries. Considering the radiation flux with fixed but arbitrary (non-zero) angular momentum, we extend previous results limited to an equatorial plane motion within a zero-angularmomentum photon flux in the Kerr and Schwarzschild backgrounds. While a unique equilibrium circular orbit exists if the photon flux has zero angular momentum, multiple such orbits appear if the photon angular momentum is sufficiently high.

Mots clés: Physical Sciences

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]

Donato Bini, Andrea Geralico, Robert T Jantzen, Oldřich Semerák, Luigi Stella. The general relativistic PoyntingRobertson effect: II. A photon flux with nonzero angular momentum. Classical and Quantum Gravity, 2011, 28 (3), pp.35008. ⟨10.1088/0264-9381/28/3/035008⟩. ⟨hal-00667126⟩