Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN

Raffaella Morganti

doi:10.1007/978-3-642-22795-0_4

Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN

Raffaella Morganti^*

^*Corresponding author for this work

Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

Abstract

Understanding the role of cold gas in the triggering and evolution of active galactic nuclei (AGN) is one of the goals of future cm and mm facilities. HI 21cm in absorption is one powerful diagnostic that can be used to explore these topics and probe the central regions of AGN. This contribution will briefly summarize some of the recent results in this field including the finding of fast, massive outflows of HI gas that may provide the negative feedback required by the galaxy's evolution models to stop the growth of the black hole and the star formation. The requirements needed for the new radio facilities - and in particular SKA - in order to provide a major step forward in the understanding of the distribution and kinematics of the atomic neutral gas close to the AGN will also be discussed.

Original language	English
Title of host publication	The Square Kilometre Array
Subtitle of host publication	Paving the way for the new 21st century radio astronomy paradigm: Proceedings of Symposium 7 of JENAM 2010
Place of Publication	Berlin Heidelberg
Publisher	Springer
Pages	31-42
Number of pages	12
ISBN (Print)	978-3-642-22794-3
DOIs	https://doi.org/10.1007/978-3-642-22795-0_4
Publication status	Published - 2012

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http://adsabs.harvard.edu/abs/2012skap.book...31M

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@inproceedings{d3ed11b230d44fdeabb55bc5ef3ec4ce,

title = "Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN",

abstract = "Understanding the role of cold gas in the triggering and evolution of active galactic nuclei (AGN) is one of the goals of future cm and mm facilities. HI 21cm in absorption is one powerful diagnostic that can be used to explore these topics and probe the central regions of AGN. This contribution will briefly summarize some of the recent results in this field including the finding of fast, massive outflows of HI gas that may provide the negative feedback required by the galaxy's evolution models to stop the growth of the black hole and the star formation. The requirements needed for the new radio facilities - and in particular SKA - in order to provide a major step forward in the understanding of the distribution and kinematics of the atomic neutral gas close to the AGN will also be discussed.",

author = "Raffaella Morganti",

note = "M1 - Generic",

year = "2012",

doi = "10.1007/978-3-642-22795-0\_4",

language = "English",

isbn = "978-3-642-22794-3",

pages = "31--42",

booktitle = "The Square Kilometre Array",

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Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN. / Morganti, Raffaella.
The Square Kilometre Array: Paving the way for the new 21st century radio astronomy paradigm: Proceedings of Symposium 7 of JENAM 2010. Berlin Heidelberg: Springer, 2012. p. 31-42.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN

AU - Morganti, Raffaella

N1 - M1 - Generic

PY - 2012

Y1 - 2012

N2 - Understanding the role of cold gas in the triggering and evolution of active galactic nuclei (AGN) is one of the goals of future cm and mm facilities. HI 21cm in absorption is one powerful diagnostic that can be used to explore these topics and probe the central regions of AGN. This contribution will briefly summarize some of the recent results in this field including the finding of fast, massive outflows of HI gas that may provide the negative feedback required by the galaxy's evolution models to stop the growth of the black hole and the star formation. The requirements needed for the new radio facilities - and in particular SKA - in order to provide a major step forward in the understanding of the distribution and kinematics of the atomic neutral gas close to the AGN will also be discussed.

AB - Understanding the role of cold gas in the triggering and evolution of active galactic nuclei (AGN) is one of the goals of future cm and mm facilities. HI 21cm in absorption is one powerful diagnostic that can be used to explore these topics and probe the central regions of AGN. This contribution will briefly summarize some of the recent results in this field including the finding of fast, massive outflows of HI gas that may provide the negative feedback required by the galaxy's evolution models to stop the growth of the black hole and the star formation. The requirements needed for the new radio facilities - and in particular SKA - in order to provide a major step forward in the understanding of the distribution and kinematics of the atomic neutral gas close to the AGN will also be discussed.

U2 - 10.1007/978-3-642-22795-0_4

DO - 10.1007/978-3-642-22795-0_4

M3 - Conference contribution

SN - 978-3-642-22794-3

SP - 31

EP - 42

BT - The Square Kilometre Array

PB - Springer

CY - Berlin Heidelberg

ER -

Using HI Absorption to Trace Outflows from Galaxies and Feeding of AGN

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