Measuring the low mass end of the M• - σ relation

Davor Krajnović; Richard M. McDermid; Michele Cappellari; Roger L. Davies

doi:10.1063/1.3458490

Measuring the low mass end of the M• - σ relation

Davor Krajnović^*, Richard M. McDermid, Michele Cappellari, Roger L. Davies

^*Corresponding author for this work

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

Abstract

We show that high quality laser guide star (LGS) adaptive optics (AO) observations of nearby early-type galaxies are possible when the tip-tilt correction is done by guiding on nuclei while the focus compensation due to the changing distance to the sodium layer is made 'open loop'. We achieve corrections such that 40% of flux comes from R<0.2 arcsec. To measure a black hole mass (M_•) one needs integral field observations of both high spatial resolution and large field of view. With these data it is possible to determine the lower limit to M_• even if the spatial resolution of the observations are up to a few times larger than the sphere of influence of the black hole.

Original language	English
Title of host publication	Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference
Editors	Victor P. Debattista, Cristina C. Popescu
Place of Publication	College Park, Maryland
Publisher	American Institute of Physics
Pages	215-218
Number of pages	4
Volume	1240
ISBN (Print)	9780735407862
DOIs	https://doi.org/10.1063/1.3458490
Publication status	Published - 2010
Externally published	Yes
Event	International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation" - Qawra, Malta Duration: 19 Oct 2009 → 23 Oct 2009

Other

Other	International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation"
Country/Territory	Malta
City	Qawra
Period	19/10/09 → 23/10/09

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10.1063/1.3458490

Cite this

@inproceedings{3c279c955ba54f7d88b24aaea485a97c,

title = "Measuring the low mass end of the M• - σ relation",

abstract = "We show that high quality laser guide star (LGS) adaptive optics (AO) observations of nearby early-type galaxies are possible when the tip-tilt correction is done by guiding on nuclei while the focus compensation due to the changing distance to the sodium layer is made 'open loop'. We achieve corrections such that 40% of flux comes from R<0.2 arcsec. To measure a black hole mass (M•) one needs integral field observations of both high spatial resolution and large field of view. With these data it is possible to determine the lower limit to M• even if the spatial resolution of the observations are up to a few times larger than the sphere of influence of the black hole.",

author = "Davor Krajnovi{\'c} and McDermid, {Richard M.} and Michele Cappellari and Davies, {Roger L.}",

year = "2010",

doi = "10.1063/1.3458490",

language = "English",

isbn = "9780735407862",

volume = "1240",

pages = "215--218",

editor = "Debattista, {Victor P.} and Popescu, {Cristina C.}",

booktitle = "Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference",

publisher = "American Institute of Physics",

address = "United States",

note = "International Conference {"}Hunting for the Dark: The Hidden Side of Galaxy Formation{"} ; Conference date: 19-10-2009 Through 23-10-2009",

}

Krajnović, D, McDermid, RM, Cappellari, M & Davies, RL 2010, Measuring the low mass end of the M• - σ relation. in VP Debattista & CC Popescu (eds), Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference. vol. 1240, American Institute of Physics, College Park, Maryland, pp. 215-218, International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation", Qawra, Malta, 19/10/09. https://doi.org/10.1063/1.3458490

Measuring the low mass end of the M• - σ relation. / Krajnović, Davor; McDermid, Richard M.; Cappellari, Michele et al.
Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference. ed. / Victor P. Debattista; Cristina C. Popescu. Vol. 1240 College Park, Maryland: American Institute of Physics, 2010. p. 215-218.

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

TY - GEN

T1 - Measuring the low mass end of the M• - σ relation

AU - Krajnović, Davor

AU - McDermid, Richard M.

AU - Cappellari, Michele

AU - Davies, Roger L.

PY - 2010

Y1 - 2010

N2 - We show that high quality laser guide star (LGS) adaptive optics (AO) observations of nearby early-type galaxies are possible when the tip-tilt correction is done by guiding on nuclei while the focus compensation due to the changing distance to the sodium layer is made 'open loop'. We achieve corrections such that 40% of flux comes from R<0.2 arcsec. To measure a black hole mass (M•) one needs integral field observations of both high spatial resolution and large field of view. With these data it is possible to determine the lower limit to M• even if the spatial resolution of the observations are up to a few times larger than the sphere of influence of the black hole.

AB - We show that high quality laser guide star (LGS) adaptive optics (AO) observations of nearby early-type galaxies are possible when the tip-tilt correction is done by guiding on nuclei while the focus compensation due to the changing distance to the sodium layer is made 'open loop'. We achieve corrections such that 40% of flux comes from R<0.2 arcsec. To measure a black hole mass (M•) one needs integral field observations of both high spatial resolution and large field of view. With these data it is possible to determine the lower limit to M• even if the spatial resolution of the observations are up to a few times larger than the sphere of influence of the black hole.

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U2 - 10.1063/1.3458490

DO - 10.1063/1.3458490

M3 - Conference proceeding contribution

AN - SCOPUS:77955680901

SN - 9780735407862

VL - 1240

SP - 215

EP - 218

BT - Hunting for the Dark: The Hidden Side of Galaxy Formation - Proceedings of the International Conference

A2 - Debattista, Victor P.

A2 - Popescu, Cristina C.

PB - American Institute of Physics

CY - College Park, Maryland

T2 - International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation"

Y2 - 19 October 2009 through 23 October 2009

ER -

Measuring the low mass end of the M• - σ relation

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