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

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding 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
Title of host publication	Tracing the Ancestry of Galaxies (on the Land of our Ancestors)
Subtitle of host publication	Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010
Editors	Claude Carignan, Françoise Combes, Ken C. Freeman
Place of Publication	Cambridge
Publisher	Cambridge University Press (CUP)
Pages	238-241
Number of pages	4
ISBN (Print)	9780521766029
DOIs	https://doi.org/10.1017/S174392131102285X
Publication status	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

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10.1017/S174392131102285X

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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, F. Combes, & K. C. Freeman (Eds.), Tracing the Ancestry of Galaxies (on the Land of our Ancestors): Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010 (pp. 238-241). (Proceedings of the International Astronomical Union; Vol. 6, No. S277). Cambridge University Press (CUP). 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): Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010. editor / Claude Carignan ; Françoise Combes ; Ken C. Freeman. Cambridge : Cambridge University Press (CUP), 2010. pp. 238-241 (Proceedings of the International Astronomical Union; S277).

@inproceedings{f4d8928297ba4b23b0263080ab4f0b32,

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.",

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",

isbn = "9780521766029",

series = "Proceedings of the International Astronomical Union",

publisher = "Cambridge University Press (CUP)",

number = "S277",

pages = "238--241",

editor = "Claude Carignan and Fran{\c c}oise Combes and Freeman, {Ken C.}",

booktitle = "Tracing the Ancestry of Galaxies (on the Land of our Ancestors)",

address = "United Kingdom",

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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, F Combes & KC Freeman (eds), Tracing the Ancestry of Galaxies (on the Land of our Ancestors): Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010. Proceedings of the International Astronomical Union, no. S277, vol. 6, Cambridge University Press (CUP), Cambridge, 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): Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010. ed. / Claude Carignan; Françoise Combes; Ken C. Freeman. Cambridge: Cambridge University Press (CUP), 2010. p. 238-241 (Proceedings of the International Astronomical Union; Vol. 6, No. S277).

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

Y1 - 2010/12

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.

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U2 - 10.1017/S174392131102285X

DO - 10.1017/S174392131102285X

M3 - Conference proceeding contribution

AN - SCOPUS:83655203213

SN - 9780521766029

T3 - Proceedings of the International Astronomical Union

SP - 238

EP - 241

BT - Tracing the Ancestry of Galaxies (on the Land of our Ancestors)

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A2 - Combes, Françoise

A2 - Freeman, Ken C.

PB - Cambridge University Press (CUP)

CY - Cambridge

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, Combes F, Freeman KC, editors, Tracing the Ancestry of Galaxies (on the Land of our Ancestors): Proceedings of the 277th Symposium of the International Astronomial Union Held in Ouagaougou, Burkina Faso, December 13-17, 2010. Cambridge: Cambridge University Press (CUP). 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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