The stellar populations of E and S0 galaxies as seen with SAURON

H. Kuntschner; E. Emsellem; R. Bacon; M. Bureau; M. Cappellari; R. L. Davies; T. Zeeuw; J. Falcón-barroso; D. Krajnović; R. M. McDermid; R. F. Peletier; M. Sarzi

doi:10.1007/978-3-540-73491-8_19

The stellar populations of E and S0 galaxies as seen with SAURON

H. Kuntschner^*, E. Emsellem, R. Bacon, M. Bureau, M. Cappellari, R. L. Davies, T. Zeeuw, J. Falcón-barroso, D. Krajnović, R. M. McDermid, R. F. Peletier, M. Sarzi

^*Corresponding author for this work

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

Abstract

We present selected results from integral-field spectroscopy of 48 earlytype galaxies observed as part of the SAURON survey. Maps of the Hβ Fe5015, Mg b and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole. We also use the line strength maps to compute average values integrated over circular apertures of one effective radius, and derive luminosity weighted ages and metallicities. The lenticular galaxies show a wide range in age and metallicity estimates, while elliptical galaxies tend to occupy regions of older stellar populations.

Original language	English
Title of host publication	Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005
Place of Publication	Berlin; Heidelberg
Publisher	Springer, Springer Nature
Pages	123-128
Number of pages	6
Volume	2007
ISBN (Print)	9783540734901
DOIs	https://doi.org/10.1007/978-3-540-73491-8_19
Publication status	Published - 2007
Externally published	Yes

Publication series

Name	ESO Astrophysics Symposia
Volume	2007
ISSN (Print)	14312433
ISSN (Electronic)	16116143

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10.1007/978-3-540-73491-8_19

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Kuntschner, H., Emsellem, E., Bacon, R., Bureau, M., Cappellari, M., Davies, R. L., Zeeuw, T., Falcón-barroso, J., Krajnović, D., McDermid, R. M., Peletier, R. F., & Sarzi, M. (2007). The stellar populations of E and S0 galaxies as seen with SAURON. In Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005 (Vol. 2007, pp. 123-128). (ESO Astrophysics Symposia; Vol. 2007). Springer, Springer Nature. https://doi.org/10.1007/978-3-540-73491-8_19

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title = "The stellar populations of E and S0 galaxies as seen with SAURON",

abstract = "We present selected results from integral-field spectroscopy of 48 earlytype galaxies observed as part of the SAURON survey. Maps of the Hβ Fe5015, Mg b and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole. We also use the line strength maps to compute average values integrated over circular apertures of one effective radius, and derive luminosity weighted ages and metallicities. The lenticular galaxies show a wide range in age and metallicity estimates, while elliptical galaxies tend to occupy regions of older stellar populations.",

author = "H. Kuntschner and E. Emsellem and R. Bacon and M. Bureau and M. Cappellari and Davies, {R. L.} and T. Zeeuw and J. Falc{\'o}n-barroso and D. Krajnovi{\'c} and McDermid, {R. M.} and Peletier, {R. F.} and M. Sarzi",

year = "2007",

doi = "10.1007/978-3-540-73491-8_19",

language = "English",

isbn = "9783540734901",

volume = "2007",

series = "ESO Astrophysics Symposia",

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Kuntschner, H, Emsellem, E, Bacon, R, Bureau, M, Cappellari, M, Davies, RL, Zeeuw, T, Falcón-barroso, J, Krajnović, D, McDermid, RM, Peletier, RF & Sarzi, M 2007, The stellar populations of E and S0 galaxies as seen with SAURON. in Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005. vol. 2007, ESO Astrophysics Symposia, vol. 2007, Springer, Springer Nature, Berlin; Heidelberg, pp. 123-128. https://doi.org/10.1007/978-3-540-73491-8_19

The stellar populations of E and S0 galaxies as seen with SAURON. / Kuntschner, H.; Emsellem, E.; Bacon, R. et al.
Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005. Vol. 2007 Berlin; Heidelberg: Springer, Springer Nature, 2007. p. 123-128 (ESO Astrophysics Symposia; Vol. 2007).

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

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T1 - The stellar populations of E and S0 galaxies as seen with SAURON

AU - Kuntschner, H.

AU - Emsellem, E.

AU - Bacon, R.

AU - Bureau, M.

AU - Cappellari, M.

AU - Davies, R. L.

AU - Zeeuw, T.

AU - Falcón-barroso, J.

AU - Krajnović, D.

AU - McDermid, R. M.

AU - Peletier, R. F.

AU - Sarzi, M.

PY - 2007

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N2 - We present selected results from integral-field spectroscopy of 48 earlytype galaxies observed as part of the SAURON survey. Maps of the Hβ Fe5015, Mg b and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole. We also use the line strength maps to compute average values integrated over circular apertures of one effective radius, and derive luminosity weighted ages and metallicities. The lenticular galaxies show a wide range in age and metallicity estimates, while elliptical galaxies tend to occupy regions of older stellar populations.

AB - We present selected results from integral-field spectroscopy of 48 earlytype galaxies observed as part of the SAURON survey. Maps of the Hβ Fe5015, Mg b and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole. We also use the line strength maps to compute average values integrated over circular apertures of one effective radius, and derive luminosity weighted ages and metallicities. The lenticular galaxies show a wide range in age and metallicity estimates, while elliptical galaxies tend to occupy regions of older stellar populations.

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AN - SCOPUS:37449020507

SN - 9783540734901

VL - 2007

T3 - ESO Astrophysics Symposia

SP - 123

EP - 128

BT - Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005

PB - Springer, Springer Nature

CY - Berlin; Heidelberg

ER -

Kuntschner H, Emsellem E, Bacon R, Bureau M, Cappellari M, Davies RL et al. The stellar populations of E and S0 galaxies as seen with SAURON. In Science Perspectives for 3D Spectroscopy Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005. Vol. 2007. Berlin; Heidelberg: Springer, Springer Nature. 2007. p. 123-128. (ESO Astrophysics Symposia). doi: 10.1007/978-3-540-73491-8_19

The stellar populations of E and S0 galaxies as seen with SAURON

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