Circumbinary Disk Accretion into Spinning Black Hole Binaries
| العنوان: | Circumbinary Disk Accretion into Spinning Black Hole Binaries |
|---|---|
| المؤلفون: | Vassilios Mewes, Mark J. Avara, Federico G. Lopez Armengol, Hiroyuki Nakano, Julian H. Krolik, Dennis B. Bowen, Luciano Combi, Manuela Campanelli, Scott C. Noble |
| المصدر: | The Astrophysical Journal |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Angular momentum, Supermassive black hole, 010504 meteorology & atmospheric sciences, Spins, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Accretion (astrophysics), Black hole, General Relativity and Quantum Cosmology, Space and Planetary Science, 0103 physical sciences, Astrophysics::Earth and Planetary Astrophysics, Circumbinary planet, Relativistic quantum chemistry, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Dimensionless quantity |
| الوصف: | Supermassive black hole binaries are likely to accrete interstellar gas through a circumbinary disk. Shortly before merger, the inner portions of this circumbinary disk are subject to general relativistic effects. To study this regime, we approximate the spacetime metric of close orbiting black holes by superimposing two boosted Kerr-Schild terms. After demonstrating the quality of this approximation, we carry out very long-term general relativistic magnetohydrodynamic simulations of the circumbinary disk. We consider black holes with spin dimensionless parameters of magnitude 0.9, in one simulation parallel to the orbital angular momentum of the binary, but in another anti-parallel. These are contrasted with spinless simulations. We find that, for a fixed surface mass density in the inner circumbinary disk, aligned spins of this magnitude approximately reduce the mass accretion rate by 14% and counter-aligned spins increase it by 45%, leaving many other disk properties unchanged. 23 pages, 15 figures, Submitted to ApJ |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49446a62baaefaad27e28836a09f0fae http://arxiv.org/abs/2102.00243 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....49446a62baaefaad27e28836a09f0fae |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |