Active galactic nuclei :fueling and feedback /

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"Version: 202112"--Title page verso.Includes bibliographical references.1. Introduction -- 1.1. Some brief history -- 1.2. Excitation of lines, masses -- 1.3. Variability and size -- 1.4. Global spectrum SED -- 1.5. The central engine -- 1.6. The AGN zoo, blazars, quasars, and others -- 1.7. Emission lines, and the BPT diagnostics -- 1.8. Unification models -- 1.9. Radio galaxies, and radio properties of AGN2. AGN feeding -- 2.1. Black hole growth in symbiosis with their host galaxy -- 2.2. How to feed a supermassive black hole -- 2.3. Agn feeding during galaxy interactions and mergers -- 2.4. Formation at high redshift : what kind of seeds?3. AGN feedback -- 3.1. Necessity of feedback in cosmology -- 3.2. Two modes of feedback -- 3.3. Energy or momentum conservation -- 3.4. Molecular and ionized gas outflows -- 3.5. How efficient is the AGN feedback?4. The circumnuclear region -- 4.1. The necessity of a dusty torus -- 4.2. Dusty torus SED -- 4.3. Molecular tori -- 4.4. Polar biconical outflow -- 4.5. Misalignment5. Conclusion -- 5.1. Summary of recent knowledge and new ideas -- 5.2. Remaining issues.Almost all galaxies host in their center a supermassive black hole of mass between a million and tens of billions solar masses. Supermassive black holes grow in symbiosis with their host galaxies across the Hubble time, occasionally accreting surround matter, giving rise to an Active Galactic Nuclei (AGN). This book gives a general review of our current knowledge of AGN, powered by supermassive black holes: how they are fueled by gas (or stars) and what problems are encountered; how can we account for the wide variety of AGN, from Seyfert/Liners to quasars, and for the two types (AGN 1 and 2) either through dust obscuration, and geometrical orientation arguments, or through intrinsic activity difference, qualitative or quantitative.Primary: Master students, PhD students, senior researchers. Secondary: Advanced amateur astronomers, Interested lay-persons.Also available in print.Mode of access: World Wide Web.System requirements: Adobe Acrobat Reader, EPUB reader, or Kindle reader.Fran?coise Combes is professor at the College de France, on the chair "Galaxies and Cosmology." She is an astrophysicist at Paris Observatory, and member of the Academy of Sciences. Her main areas of research are the formation and evolution of galaxies, their dynamics and co-evolution with supermassive black holes, the interstellar medium of galaxies and dark matter models.Title from PDF title page (viewed on January 18, 2022).

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Publisher

: .,

Collation

1 online resource (various pagings) :illustrations (some color).

Language

English

ISBN/ISSN

9780750330350

Classification

523.112 $223

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-

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Subject(s)

Galaxies & stars.
Active galactic nuclei.
AAS: Galaxies and Cosmology.

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Statement of Responsibility

Fran?coise Combes.

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