Investigating the merger origin of early-type galaxies using ultra-deep optical images

P. A. Duc; J. C. Cuillandre; K. Alatalo; L. Blitz; M. Bois; F. Bournaud; M. Bureau; M. Cappellari; P. Côté; R. L. Davies; T. A. Davis; P. T. De Zeeuw; E. Emsellem; L. Ferrarese; E. Ferriere; S. Gwyn; S. Khochfar; D. Krajnovic; H. Kuntschner; P. Y. Lablanche; L. MacArthur; R. M. McDermid; L. Michel-Dansac; R. Morganti; T. Naab; T. Oosterloo; M. Sarzi; N. Scott; P. Serra; A. Weijmans; L. M. Young

doi:10.1017/S174392131102285X

Investigating the merger origin of early-type galaxies using ultra-deep optical images

P. A. Duc, J. C. Cuillandre, K. Alatalo, L. Blitz, M. Bois, F. Bournaud, M. Bureau, M. Cappellari, P. Côté, R. L. Davies, T. A. Davis, P. T. De Zeeuw, E. Emsellem, L. Ferrarese, E. Ferriere, S. Gwyn, S. Khochfar, D. Krajnovic, H. Kuntschner, P. Y. LablancheL. MacArthur, R. M. McDermid, L. Michel-Dansac, R. Morganti, T. Naab, T. Oosterloo, M. Sarzi, N. Scott, P. Serra, A. Weijmans, L. M. Young

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

Abstract

The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: e.g. a monolithic collapse, rapid cold-gas accretion followed by violent disk instabilities, minor mergers or major dry/wet mergers. Therefore, by studying the outskirts of galaxies, one can learn about their main formation mechanism. I present here our on-going work to characterize the outskirts of Early-Type Galaxies (ETGs), which are powerful probes at low redshift of the hierarchical mass assembly of galaxies. This work relies on ultra-deep optical images obtained at CFHT with the wide-field of view MegaCam camera of field and cluster ETGs obtained as part of the ATLAS^3D and NGVS projects. State of the art numerical simulations are used to interpret the data. The images reveal a wealth of unknown faint structures at levels as faint as 29 mag arcsec^-2 in the g-band. Initial results for two galaxies are presented here.

Original language	English (US)
Title of host publication	Tracing the Ancestry of Galaxies
Subtitle of host publication	On the Land of our Ancestors
Editors	Claude Carignan, Claude Carignan, Francoise Combes, Ken Freeman
Pages	238-241
Number of pages	4
Edition	S277
DOIs	https://doi.org/10.1017/S174392131102285X
State	Published - Dec 2010
Externally published	Yes

Publication series

Name	Proceedings of the International Astronomical Union
Number	S277
Volume	6
ISSN (Print)	1743-9213
ISSN (Electronic)	1743-9221

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

cD
galaxies: elliptical and lenticular
galaxies: evolution
galaxies: formation
galaxies: interactions

Access to Document

10.1017/S174392131102285X

Cite this

Duc, P. A., Cuillandre, J. C., Alatalo, K., Blitz, L., Bois, M., Bournaud, F., Bureau, M., Cappellari, M., Côté, P., Davies, R. L., Davis, T. A., De Zeeuw, P. T., Emsellem, E., Ferrarese, L., Ferriere, E., Gwyn, S., Khochfar, S., Krajnovic, D., Kuntschner, H., ... Young, L. M. (2010). Investigating the merger origin of early-type galaxies using ultra-deep optical images. In C. Carignan, C. Carignan, F. Combes, & K. Freeman (Eds.), Tracing the Ancestry of Galaxies: On the Land of our Ancestors (S277 ed., pp. 238-241). (Proceedings of the International Astronomical Union; Vol. 6, No. S277). https://doi.org/10.1017/S174392131102285X

Duc, P. A. ; Cuillandre, J. C. ; Alatalo, K. et al. / Investigating the merger origin of early-type galaxies using ultra-deep optical images. Tracing the Ancestry of Galaxies: On the Land of our Ancestors. editor / Claude Carignan ; Claude Carignan ; Francoise Combes ; Ken Freeman. S277. ed. 2010. pp. 238-241 (Proceedings of the International Astronomical Union; S277).

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title = "Investigating the merger origin of early-type galaxies using ultra-deep optical images",

abstract = "The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: e.g. a monolithic collapse, rapid cold-gas accretion followed by violent disk instabilities, minor mergers or major dry/wet mergers. Therefore, by studying the outskirts of galaxies, one can learn about their main formation mechanism. I present here our on-going work to characterize the outskirts of Early-Type Galaxies (ETGs), which are powerful probes at low redshift of the hierarchical mass assembly of galaxies. This work relies on ultra-deep optical images obtained at CFHT with the wide-field of view MegaCam camera of field and cluster ETGs obtained as part of the ATLAS3D and NGVS projects. State of the art numerical simulations are used to interpret the data. The images reveal a wealth of unknown faint structures at levels as faint as 29 mag arcsec-2 in the g-band. Initial results for two galaxies are presented here.",

keywords = "cD, galaxies: elliptical and lenticular, galaxies: evolution, galaxies: formation, galaxies: interactions",

author = "Duc, {P. A.} and Cuillandre, {J. C.} and K. Alatalo and L. Blitz and M. Bois and F. Bournaud and M. Bureau and M. Cappellari and P. C{\^o}t{\'e} and Davies, {R. L.} and Davis, {T. A.} and {De Zeeuw}, {P. T.} and E. Emsellem and L. Ferrarese and E. Ferriere and S. Gwyn and S. Khochfar and D. Krajnovic and H. Kuntschner and Lablanche, {P. Y.} and L. MacArthur and McDermid, {R. M.} and L. Michel-Dansac and R. Morganti and T. Naab and T. Oosterloo and M. Sarzi and N. Scott and P. Serra and A. Weijmans and Young, {L. M.}",

year = "2010",

month = dec,

doi = "10.1017/S174392131102285X",

language = "English (US)",

isbn = "9780521766029",

series = "Proceedings of the International Astronomical Union",

number = "S277",

pages = "238--241",

editor = "Claude Carignan and Claude Carignan and Francoise Combes and Ken Freeman",

booktitle = "Tracing the Ancestry of Galaxies",

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Duc, PA, Cuillandre, JC, Alatalo, K, Blitz, L, Bois, M, Bournaud, F, Bureau, M, Cappellari, M, Côté, P, Davies, RL, Davis, TA, De Zeeuw, PT, Emsellem, E, Ferrarese, L, Ferriere, E, Gwyn, S, Khochfar, S, Krajnovic, D, Kuntschner, H, Lablanche, PY, MacArthur, L, McDermid, RM, Michel-Dansac, L, Morganti, R, Naab, T, Oosterloo, T, Sarzi, M, Scott, N, Serra, P, Weijmans, A & Young, LM 2010, Investigating the merger origin of early-type galaxies using ultra-deep optical images. in C Carignan, C Carignan, F Combes & K Freeman (eds), Tracing the Ancestry of Galaxies: On the Land of our Ancestors. S277 edn, Proceedings of the International Astronomical Union, no. S277, vol. 6, pp. 238-241. https://doi.org/10.1017/S174392131102285X

Investigating the merger origin of early-type galaxies using ultra-deep optical images. / Duc, P. A.; Cuillandre, J. C.; Alatalo, K. et al.
Tracing the Ancestry of Galaxies: On the Land of our Ancestors. ed. / Claude Carignan; Claude Carignan; Francoise Combes; Ken Freeman. S277. ed. 2010. p. 238-241 (Proceedings of the International Astronomical Union; Vol. 6, No. S277).

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

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T1 - Investigating the merger origin of early-type galaxies using ultra-deep optical images

AU - Duc, P. A.

AU - Cuillandre, J. C.

AU - Alatalo, K.

AU - Blitz, L.

AU - Bois, M.

AU - Bournaud, F.

AU - Bureau, M.

AU - Cappellari, M.

AU - Côté, P.

AU - Davies, R. L.

AU - Davis, T. A.

AU - De Zeeuw, P. T.

AU - Emsellem, E.

AU - Ferrarese, L.

AU - Ferriere, E.

AU - Gwyn, S.

AU - Khochfar, S.

AU - Krajnovic, D.

AU - Kuntschner, H.

AU - Lablanche, P. Y.

AU - MacArthur, L.

AU - McDermid, R. M.

AU - Michel-Dansac, L.

AU - Morganti, R.

AU - Naab, T.

AU - Oosterloo, T.

AU - Sarzi, M.

AU - Scott, N.

AU - Serra, P.

AU - Weijmans, A.

AU - Young, L. M.

PY - 2010/12

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N2 - The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: e.g. a monolithic collapse, rapid cold-gas accretion followed by violent disk instabilities, minor mergers or major dry/wet mergers. Therefore, by studying the outskirts of galaxies, one can learn about their main formation mechanism. I present here our on-going work to characterize the outskirts of Early-Type Galaxies (ETGs), which are powerful probes at low redshift of the hierarchical mass assembly of galaxies. This work relies on ultra-deep optical images obtained at CFHT with the wide-field of view MegaCam camera of field and cluster ETGs obtained as part of the ATLAS3D and NGVS projects. State of the art numerical simulations are used to interpret the data. The images reveal a wealth of unknown faint structures at levels as faint as 29 mag arcsec-2 in the g-band. Initial results for two galaxies are presented here.

AB - The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: e.g. a monolithic collapse, rapid cold-gas accretion followed by violent disk instabilities, minor mergers or major dry/wet mergers. Therefore, by studying the outskirts of galaxies, one can learn about their main formation mechanism. I present here our on-going work to characterize the outskirts of Early-Type Galaxies (ETGs), which are powerful probes at low redshift of the hierarchical mass assembly of galaxies. This work relies on ultra-deep optical images obtained at CFHT with the wide-field of view MegaCam camera of field and cluster ETGs obtained as part of the ATLAS3D and NGVS projects. State of the art numerical simulations are used to interpret the data. The images reveal a wealth of unknown faint structures at levels as faint as 29 mag arcsec-2 in the g-band. Initial results for two galaxies are presented here.

KW - cD

KW - galaxies: elliptical and lenticular

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: interactions

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SN - 9780521766029

T3 - Proceedings of the International Astronomical Union

SP - 238

EP - 241

BT - Tracing the Ancestry of Galaxies

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ER -

Duc PA, Cuillandre JC, Alatalo K, Blitz L, Bois M, Bournaud F et al. Investigating the merger origin of early-type galaxies using ultra-deep optical images. In Carignan C, Carignan C, Combes F, Freeman K, editors, Tracing the Ancestry of Galaxies: On the Land of our Ancestors. S277 ed. 2010. p. 238-241. (Proceedings of the International Astronomical Union; S277). doi: 10.1017/S174392131102285X

Investigating the merger origin of early-type galaxies using ultra-deep optical images

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Publication series

All Science Journal Classification (ASJC) codes

Keywords

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