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

Kapteyn Astronomical Institute

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

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.

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 International Astronomical Union Symposium
Pages	238-241
Number of pages	4
Volume	277
DOIs	https://doi.org/10.1017/S174392131102285X
Publication status	Published - Dec-2011

Keywords

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

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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. (2011). Investigating the Merger Origin of Early-type Galaxies using Ultra-deep Optical Images. In Tracing the Ancestry of Galaxies (on the land of our ancestors): Proceedings of the International Astronomical Union Symposium (Vol. 277, pp. 238-241) https://doi.org/10.1017/S174392131102285X

@inproceedings{8627a59fc27c40c2b948b8edc0511c7c,

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

author = "P.-A. Duc and J.-C. Cuillandre 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 P.-Y. Lablanche 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.}",

note = "M1 - Conference Proceedings",

year = "2011",

month = dec,

doi = "10.1017/S174392131102285X",

language = "English",

volume = "277",

pages = "238--241",

booktitle = "Tracing the Ancestry of Galaxies (on the land of our ancestors)",

}

Duc, P-A, Cuillandre, J-C, 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, P-Y, MacArthur, L, McDermid, RM, Michel-Dansac, L, Morganti, R, Naab, T, Oosterloo, T, Sarzi, M, Scott, N, Serra, P, Weijmans, A & Young, LM 2011, Investigating the Merger Origin of Early-type Galaxies using Ultra-deep Optical Images. in Tracing the Ancestry of Galaxies (on the land of our ancestors): Proceedings of the International Astronomical Union Symposium. vol. 277, 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 International Astronomical Union Symposium. Vol. 277 2011. p. 238-241.

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

TY - GEN

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.

N1 - M1 - Conference Proceedings

PY - 2011/12

Y1 - 2011/12

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.

KW - galaxies: formation

KW - galaxies: evolution

KW - galaxies: interactions

KW - galaxies: elliptical and lenticular

KW - cD

U2 - 10.1017/S174392131102285X

DO - 10.1017/S174392131102285X

M3 - Conference contribution

VL - 277

SP - 238

EP - 241

BT - Tracing the Ancestry of Galaxies (on the land of our ancestors)

ER -

Investigating the Merger Origin of Early-type Galaxies using Ultra-deep Optical Images

Abstract

Keywords

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