Satellites in discs: regulating the accretion luminosity Export

@article{citeulike:3680769, abstract = {We demonstrate, using a simple analytic model, that the presence of a massive satellite can globally modify the structure and emission properties of an accretion disc to which it is tidally coupled. We show, using two levels of numerical approximation, that the analytic model gives reasonable results. The results are applicable to two astrophysical situations. For an active galactic nucleus, we consider the case of a \~{}10^3 M\_solar compact companion to the central black hole, and show that it could modulate the emitted spectrum on a time-scale of \~{}10^5 yr. In the case of a T Tauri accretion disc, a satellite such as a subdwarf or giant planet could modify the disc spectral energy distribution over a substantial fraction of the T Tauri star lifetime.}, archivePrefix = {arXiv}, author = {Syer, D. and Clarke, C. J.}, citeulike-article-id = {3680769}, citeulike-linkout-0 = {http://arxiv.org/abs/astro-ph/9505021}, citeulike-linkout-1 = {http://arxiv.org/pdf/astro-ph/9505021}, citeulike-linkout-2 = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1995MNRAS.277..758S}, eprint = {astro-ph/9505021}, journal = {Mon. Not. Roy. Astron. Soc.}, keywords = {accretion, active, discs, formation, galaxies, stars}, month = {December}, pages = {758--766}, posted-at = {2008-11-24 12:25:20}, priority = {0}, title = {Satellites in discs: regulating the accretion luminosity}, url = {http://arxiv.org/abs/astro-ph/9505021}, volume = {277}, year = {1995} }

TY - JOUR ID - citeulike:3680769 L3 - citeulike-article-id:3680769 N2 - We demonstrate, using a simple analytic model, that the presence of a massive satellite can globally modify the structure and emission properties of an accretion disc to which it is tidally coupled. We show, using two levels of numerical approximation, that the analytic model gives reasonable results. The results are applicable to two astrophysical situations. For an active galactic nucleus, we consider the case of a ~10^3 M_solar compact companion to the central black hole, and show that it could modulate the emitted spectrum on a time-scale of ~10^5 yr. In the case of a T Tauri accretion disc, a satellite such as a subdwarf or giant planet could modify the disc spectral energy distribution over a substantial fraction of the T Tauri star lifetime. JF - Mon. Not. Roy. Astron. Soc. EP - 766 TI - Satellites in discs: regulating the accretion luminosity VL - 277 SP - 758 KW - accretion KW - active KW - discs KW - formation KW - galaxies KW - stars AU - Syer, D AU - Clarke, CJ PY - 1995/December// UR - http://arxiv.org/abs/astro-ph/9505021 ER -