Probing the kinematics of early-type galaxy halos using planetary nebulae

L. Coccato; P. Gerhard; M. Arnaboldi; P. Das; N. G. Douglas; K. Kijken; M. R. Merrifield; N. R. Napolitano; E. Noordermeer; A. J. Romanowsky; M. Capaccioli; A. Cortesi; F. De Lorenzi; K. C. Freeman

doi:10.1002/asna.200811051

Probing the kinematics of early-type galaxy halos using planetary nebulae

L. Coccato^*, P. Gerhard, M. Arnaboldi, P. Das, N. G. Douglas, K. Kijken, M. R. Merrifield, N. R. Napolitano, E. Noordermeer, A. J. Romanowsky, M. Capaccioli, A. Cortesi, F. De Lorenzi, K. C. Freeman

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (R_e) the information from absorption line kinematics (confined to within 1 or 2R_e), providing valuable information and constraints for merger simulations and galaxy formation models. We find that the specific angular momentum per unit mass has a more complex radial dependence when the halo region is taken into account and that the halo velocity dispersion is related to the total galaxy luminosity, isophotal shape, and number of PNe per unit of luminosity .

Original language	English
Pages (from-to)	912-915
Number of pages	4
Journal	Astronomische Nachrichten
Volume	329
Issue number	9-10
DOIs	https://doi.org/10.1002/asna.200811051
Publication status	Published - Dec 2008

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Coccato, L., Gerhard, P., Arnaboldi, M., Das, P., Douglas, N. G., Kijken, K., Merrifield, M. R., Napolitano, N. R., Noordermeer, E., Romanowsky, A. J., Capaccioli, M., Cortesi, A., De Lorenzi, F., & Freeman, K. C. (2008). Probing the kinematics of early-type galaxy halos using planetary nebulae. Astronomische Nachrichten, 329(9-10), 912-915. https://doi.org/10.1002/asna.200811051

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title = "Probing the kinematics of early-type galaxy halos using planetary nebulae",

abstract = "We present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (Re) the information from absorption line kinematics (confined to within 1 or 2Re), providing valuable information and constraints for merger simulations and galaxy formation models. We find that the specific angular momentum per unit mass has a more complex radial dependence when the halo region is taken into account and that the halo velocity dispersion is related to the total galaxy luminosity, isophotal shape, and number of PNe per unit of luminosity .",

keywords = "Galaxies: elliptical and lenticular, Galaxies: general, Galaxies: haloes, Galaxies: kinematics and dynamics, Planetary nebulae: general, cD",

author = "L. Coccato and P. Gerhard and M. Arnaboldi and P. Das and Douglas, {N. G.} and K. Kijken and Merrifield, {M. R.} and Napolitano, {N. R.} and E. Noordermeer and Romanowsky, {A. J.} and M. Capaccioli and A. Cortesi and {De Lorenzi}, F. and Freeman, {K. C.}",

year = "2008",

month = dec,

doi = "10.1002/asna.200811051",

language = "English",

volume = "329",

pages = "912--915",

journal = "Astronomische Nachrichten",

issn = "0004-6337",

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Coccato, L, Gerhard, P, Arnaboldi, M, Das, P, Douglas, NG, Kijken, K, Merrifield, MR, Napolitano, NR, Noordermeer, E, Romanowsky, AJ, Capaccioli, M, Cortesi, A, De Lorenzi, F & Freeman, KC 2008, 'Probing the kinematics of early-type galaxy halos using planetary nebulae', Astronomische Nachrichten, vol. 329, no. 9-10, pp. 912-915. https://doi.org/10.1002/asna.200811051

TY - JOUR

T1 - Probing the kinematics of early-type galaxy halos using planetary nebulae

AU - Coccato, L.

AU - Gerhard, P.

AU - Arnaboldi, M.

AU - Das, P.

AU - Douglas, N. G.

AU - Kijken, K.

AU - Merrifield, M. R.

AU - Napolitano, N. R.

AU - Noordermeer, E.

AU - Romanowsky, A. J.

AU - Capaccioli, M.

AU - Cortesi, A.

AU - De Lorenzi, F.

AU - Freeman, K. C.

PY - 2008/12

Y1 - 2008/12

N2 - We present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (Re) the information from absorption line kinematics (confined to within 1 or 2Re), providing valuable information and constraints for merger simulations and galaxy formation models. We find that the specific angular momentum per unit mass has a more complex radial dependence when the halo region is taken into account and that the halo velocity dispersion is related to the total galaxy luminosity, isophotal shape, and number of PNe per unit of luminosity .

AB - We present first results of a study of the halo kinematics for a sample of early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe allow to extend up to several effective radii (Re) the information from absorption line kinematics (confined to within 1 or 2Re), providing valuable information and constraints for merger simulations and galaxy formation models. We find that the specific angular momentum per unit mass has a more complex radial dependence when the halo region is taken into account and that the halo velocity dispersion is related to the total galaxy luminosity, isophotal shape, and number of PNe per unit of luminosity .

KW - Galaxies: elliptical and lenticular

KW - Galaxies: general

KW - Galaxies: haloes

KW - Galaxies: kinematics and dynamics

KW - Planetary nebulae: general

KW - cD

UR - http://www.scopus.com/inward/record.url?scp=57149142103&partnerID=8YFLogxK

U2 - 10.1002/asna.200811051

DO - 10.1002/asna.200811051

M3 - Article

SN - 0004-6337

VL - 329

SP - 912

EP - 915

JO - Astronomische Nachrichten

JF - Astronomische Nachrichten

IS - 9-10

ER -

Probing the kinematics of early-type galaxy halos using planetary nebulae

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