Academic Journal
The Influence of Black Hole Mass and Accretion Rate on the FRI/FRII Radio Galaxy Dichotomy
| العنوان: | The Influence of Black Hole Mass and Accretion Rate on the FRI/FRII Radio Galaxy Dichotomy |
|---|---|
| المؤلفون: | Margrethe Wold, Mark Lacy, Lee Armus |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://arxiv.org/pdf/astro-ph/0409144v1.pdf. |
| سنة النشر: | 2004 |
| المجموعة: | CiteSeerX |
| الوصف: | We use medium resolution optical spectra of 3CR radio galaxies to estimate their black hole masses and accretion rates. Black hole masses are found from central stellar velocity dispersions, and accretion rates are derived from narrow emission-line luminosities. The sample covers both Fanaroff-Riley (FR) classes; the more powerful FRIIs and the less powerful FRIs. We find that FRIs and FRIIs separate in diagrams of radio luminosity and narrow-line luminosity versus black hole mass. This suggests that, at a given black hole mass, the FRIIs accrete more efficiently, or accrete more matter, than FRIs. 1 |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.256.7113; http://arxiv.org/pdf/astro-ph/0409144v1.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.256.7113 http://arxiv.org/pdf/astro-ph/0409144v1.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.75071154 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |