Particles under radiation thrust in Schwarzschild space-time: a flux perpendicular to the equatorial plane (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Particles under radiation thrust in Schwarzschild space-time: a flux perpendicular to the equatorial plane (Articolo in rivista) (literal)

Anno

• 2015-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1093/mnras/stu2242 (literal)

Alternative label

• Bini D., Geralico A., Jantzen R.T., Semerak O. (2015)
  Particles under radiation thrust in Schwarzschild space-time: a flux perpendicular to the equatorial plane
  in Monthly notices of the Royal Astronomical Society (Online)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Bini D., Geralico A., Jantzen R.T., Semerak O. (literal)

Pagina inizio

• 1907 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 446 (literal)

Rivista

• Monthly notices of the Royal Astronomical Society (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto per le Applicazioni del Calcolo \"M. Picone\", CNR I-00161 Rome, Italy ICRA, University of Rome \"La Sapienza\", I-00185 Rome, Italy Department of Mathematical Sciences, Villanova University, Villanova, PA 19085, USA Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic (literal)

Titolo

• Particles under radiation thrust in Schwarzschild space-time: a flux perpendicular to the equatorial plane (literal)

Abstract

• Motivated by the picture of a thin accretion disc around a black hole, radiating mainly in the direction perpendicular to its plane, we study the motion of test particles interacting with a test geodesic radiation flux propagating perpendicular to the equatorial plane in a Schwarzschild space-time. We assume that the interaction (kind of Poynting-Robertson effect) is modelled by an effective term corresponding to a Thomson-type radiation drag. After approximating the individual photon trajectories in quite an accurate way, we solve the continuity equation (up to linear order in M) in order to find a consistent radiation-flux density, prescribing a certain plausible equatorial profile. The combined effect of gravitation and radiation is illustrated on several figures; they confirm that the particles are generically strongly influenced by the flux, in particular, they are both collimated and accelerated in the direction perpendicular to the disc, but the acceleration received in this manner is not enough to explain highly relativistic outflows emanating from some black-hole-disc sources. Main improvement needed is a more realistic description of the radiation-particle interaction, allowing for Compton-type frequency-dependent effect and particle heating/cooling. (literal)

Prodotto di

• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)
• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)

Autore CNR

• ANDREA GERALICO (Unità di personale esterno)
• DONATO BINI (Unità di personale interno)

Incoming links:

Autore CNR di

• DONATO BINI (Unità di personale interno)
• ANDREA GERALICO (Unità di personale esterno)

Prodotto

• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)
• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Monthly notices of the Royal Astronomical Society (Rivista)