Dark matter in the central regions of early type galaxies

M. Cappellari; R. Bacon; M. Bureau; M. C. Damen; R. L. Davies; P. T. De Zeeuw; E. Emsellem; J. Falcon-Barroso; D. Krajnović; H. Kuntschner; R. M. McDermid; R. F. Peletier; M. Sarzi; R. C E Van Den Bosch; G. Van De Ven

doi:10.1051/eas:2006058

Dark matter in the central regions of early type galaxies

M. Cappellari^*, R. Bacon, M. Bureau, M. C. Damen, R. L. Davies, P. T. De Zeeuw, E. Emsellem, J. Falcon-Barroso, D. Krajnović, H. Kuntschner, R. M. McDermid, R. F. Peletier, M. Sarzi, R. C E Van Den Bosch, G. Van De Ven

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

We investigate the well-known correlations between the dynamical rnass-to-light ratio M/L and other global observables of elliptical (E) arid lenticular (S0) galaxies. We construct two-integral Jeans and three-integral Schwarzschild dynamical models for a sample of 25 E/S0 galaxies with SAURON integral-field stellar kinematics to about one effective (half-light) radius R_e. The comparison of the dynamical M/L with the (M/L)_pop inferred from the analysis of the stellar population, indicates that dark matter in early-type galaxies contributes ∼30% of the total mass inside one R_e, in agreement with previous studies, with significant variations from galaxy to galaxy. Our results suggest a variation in M/L at constant (M/L)_pop, which seems to be linked to the galaxy dynamics. We speculate that fast rotating galaxies have lower dark matter fractions than the slow rotating and generally more massive ones.

Original language	English
Title of host publication	21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures
Editors	G Mamon, F Combes, C Deffayet, B Fort
Place of Publication	Les Ulis, France
Publisher	EDP Sciences
Pages	127-130
Number of pages	4
Volume	20
ISBN (Print)	2868839177, 9782868839176
DOIs	https://doi.org/10.1051/eas:2006058
Publication status	Published - 2006
Externally published	Yes
Event	21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures - Paris, France Duration: 4 Jul 2005 → 9 Jul 2005

Publication series

Name	EAS Publications Series
Volume	20
ISSN (Print)	16334760

Other

Other	21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures
Country/Territory	France
City	Paris
Period	4/07/05 → 9/07/05

Access to Document

10.1051/eas:2006058

Cite this

Cappellari, M., Bacon, R., Bureau, M., Damen, M. C., Davies, R. L., De Zeeuw, P. T., Emsellem, E., Falcon-Barroso, J., Krajnović, D., Kuntschner, H., McDermid, R. M., Peletier, R. F., Sarzi, M., Van Den Bosch, R. C. E., & Van De Ven, G. (2006). Dark matter in the central regions of early type galaxies. In G. Mamon, F. Combes, C. Deffayet, & B. Fort (Eds.), 21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures (Vol. 20, pp. 127-130). (EAS Publications Series; Vol. 20). EDP Sciences. https://doi.org/10.1051/eas:2006058

@inproceedings{ce6bfab4953e43f98142d4aa33193a03,

title = "Dark matter in the central regions of early type galaxies",

abstract = "We investigate the well-known correlations between the dynamical rnass-to-light ratio M/L and other global observables of elliptical (E) arid lenticular (S0) galaxies. We construct two-integral Jeans and three-integral Schwarzschild dynamical models for a sample of 25 E/S0 galaxies with SAURON integral-field stellar kinematics to about one effective (half-light) radius Re. The comparison of the dynamical M/L with the (M/L)pop inferred from the analysis of the stellar population, indicates that dark matter in early-type galaxies contributes ∼30% of the total mass inside one Re, in agreement with previous studies, with significant variations from galaxy to galaxy. Our results suggest a variation in M/L at constant (M/L)pop, which seems to be linked to the galaxy dynamics. We speculate that fast rotating galaxies have lower dark matter fractions than the slow rotating and generally more massive ones.",

author = "M. Cappellari and R. Bacon and M. Bureau and Damen, {M. C.} and Davies, {R. L.} and {De Zeeuw}, {P. T.} and E. Emsellem and J. Falcon-Barroso and D. Krajnovi{\'c} and H. Kuntschner and McDermid, {R. M.} and Peletier, {R. F.} and M. Sarzi and {Van Den Bosch}, {R. C E} and {Van De Ven}, G.",

year = "2006",

doi = "10.1051/eas:2006058",

language = "English",

isbn = "2868839177",

volume = "20",

series = "EAS Publications Series",

publisher = "EDP Sciences",

pages = "127--130",

editor = "G Mamon and F Combes and C Deffayet and B Fort",

booktitle = "21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures",

address = "France",

note = "21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures ; Conference date: 04-07-2005 Through 09-07-2005",

}

Cappellari, M, Bacon, R, Bureau, M, Damen, MC, Davies, RL, De Zeeuw, PT, Emsellem, E, Falcon-Barroso, J, Krajnović, D, Kuntschner, H, McDermid, RM, Peletier, RF, Sarzi, M, Van Den Bosch, RCE & Van De Ven, G 2006, Dark matter in the central regions of early type galaxies. in G Mamon, F Combes, C Deffayet & B Fort (eds), 21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures. vol. 20, EAS Publications Series, vol. 20, EDP Sciences, Les Ulis, France, pp. 127-130, 21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures, Paris, France, 4/07/05. https://doi.org/10.1051/eas:2006058

Dark matter in the central regions of early type galaxies. / Cappellari, M.; Bacon, R.; Bureau, M. et al.
21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures. ed. / G Mamon; F Combes; C Deffayet; B Fort. Vol. 20 Les Ulis, France: EDP Sciences, 2006. p. 127-130 (EAS Publications Series; Vol. 20).

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

TY - GEN

T1 - Dark matter in the central regions of early type galaxies

AU - Cappellari, M.

AU - Bacon, R.

AU - Bureau, M.

AU - Damen, M. C.

AU - Davies, R. L.

AU - De Zeeuw, P. T.

AU - Emsellem, E.

AU - Falcon-Barroso, J.

AU - Krajnović, D.

AU - Kuntschner, H.

AU - McDermid, R. M.

AU - Peletier, R. F.

AU - Sarzi, M.

AU - Van Den Bosch, R. C E

AU - Van De Ven, G.

PY - 2006

Y1 - 2006

N2 - We investigate the well-known correlations between the dynamical rnass-to-light ratio M/L and other global observables of elliptical (E) arid lenticular (S0) galaxies. We construct two-integral Jeans and three-integral Schwarzschild dynamical models for a sample of 25 E/S0 galaxies with SAURON integral-field stellar kinematics to about one effective (half-light) radius Re. The comparison of the dynamical M/L with the (M/L)pop inferred from the analysis of the stellar population, indicates that dark matter in early-type galaxies contributes ∼30% of the total mass inside one Re, in agreement with previous studies, with significant variations from galaxy to galaxy. Our results suggest a variation in M/L at constant (M/L)pop, which seems to be linked to the galaxy dynamics. We speculate that fast rotating galaxies have lower dark matter fractions than the slow rotating and generally more massive ones.

AB - We investigate the well-known correlations between the dynamical rnass-to-light ratio M/L and other global observables of elliptical (E) arid lenticular (S0) galaxies. We construct two-integral Jeans and three-integral Schwarzschild dynamical models for a sample of 25 E/S0 galaxies with SAURON integral-field stellar kinematics to about one effective (half-light) radius Re. The comparison of the dynamical M/L with the (M/L)pop inferred from the analysis of the stellar population, indicates that dark matter in early-type galaxies contributes ∼30% of the total mass inside one Re, in agreement with previous studies, with significant variations from galaxy to galaxy. Our results suggest a variation in M/L at constant (M/L)pop, which seems to be linked to the galaxy dynamics. We speculate that fast rotating galaxies have lower dark matter fractions than the slow rotating and generally more massive ones.

UR - http://www.scopus.com/inward/record.url?scp=33746096494&partnerID=8YFLogxK

U2 - 10.1051/eas:2006058

DO - 10.1051/eas:2006058

M3 - Conference proceeding contribution

AN - SCOPUS:33746096494

SN - 2868839177

SN - 9782868839176

VL - 20

T3 - EAS Publications Series

SP - 127

EP - 130

BT - 21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures

A2 - Mamon, G

A2 - Combes, F

A2 - Deffayet, C

A2 - Fort, B

PB - EDP Sciences

CY - Les Ulis, France

T2 - 21st IAP Colloquium Mass Profiles and Shapes of Cosmological Structures

Y2 - 4 July 2005 through 9 July 2005

ER -

Dark matter in the central regions of early type galaxies

Abstract

Publication series

Other

Access to Document

Other files and links

Fingerprint

Cite this