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The ATLAS3D project - XXVII: Cold gas and the colours and ages of early-type galaxies

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The ATLAS3D project - XXVII : Cold gas and the colours and ages of early-type galaxies. / Young, L.M.; Scott, Nicholas; Serra, Paolo; Alatalo, Katherine; Blitz, Leo; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Cappellari, Michele; Davies, R.L.; Davis, T.A.; de Zeeuw, P.T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; McDermid, Richard M.; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Weijmans, Anne-Marie.

In: Monthly Notices of the Royal Astronomical Society, Vol. 444, No. 4, 11.11.2014, p. 3408-3426.

Research output: Contribution to journalArticlepeer-review

Harvard

Young, LM, Scott, N, Serra, P, Alatalo, K, Blitz, L, Bois, M, Bournaud, F, Bureau, M, Crocker, AF, Cappellari, M, Davies, RL, Davis, TA, de Zeeuw, PT, Duc, P-A, Emsellem, E, Khochfar, S, Krajnovic, D, Kuntschner, H, McDermid, RM, Morganti, R, Naab, T, Oosterloo, T, Sarzi, M & Weijmans, A-M 2014, 'The ATLAS3D project - XXVII: Cold gas and the colours and ages of early-type galaxies', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 4, pp. 3408-3426. https://doi.org/10.1093/mnras/stt2474

APA

Young, L. M., Scott, N., Serra, P., Alatalo, K., Blitz, L., Bois, M., Bournaud, F., Bureau, M., Crocker, A. F., Cappellari, M., Davies, R. L., Davis, T. A., de Zeeuw, P. T., Duc, P-A., Emsellem, E., Khochfar, S., Krajnovic, D., Kuntschner, H., McDermid, R. M., ... Weijmans, A-M. (2014). The ATLAS3D project - XXVII: Cold gas and the colours and ages of early-type galaxies. Monthly Notices of the Royal Astronomical Society, 444(4), 3408-3426. https://doi.org/10.1093/mnras/stt2474

Vancouver

Author

Young, L.M. ; Scott, Nicholas ; Serra, Paolo ; Alatalo, Katherine ; Blitz, Leo ; Bois, Maxime ; Bournaud, Frederic ; Bureau, Martin ; Crocker, Alison F. ; Cappellari, Michele ; Davies, R.L. ; Davis, T.A. ; de Zeeuw, P.T. ; Duc, Pierre-Alain ; Emsellem, Eric ; Khochfar, Sadegh ; Krajnovic, Davor ; Kuntschner, Harald ; McDermid, Richard M. ; Morganti, Raffaella ; Naab, Thorsten ; Oosterloo, Tom ; Sarzi, Marc ; Weijmans, Anne-Marie. / The ATLAS3D project - XXVII : Cold gas and the colours and ages of early-type galaxies. In: Monthly Notices of the Royal Astronomical Society. 2014 ; Vol. 444, No. 4. pp. 3408-3426.

Bibtex

@article{c6e6efcf60c644afbe81126e88945acc,
title = "The ATLAS3D project - XXVII: Cold gas and the colours and ages of early-type galaxies",
abstract = "We present a study of the cold gas contents of the ATLAS3D early-type galaxies, in the context of their optical colours, near-ultraviolet colours and Hβ absorption line strengths. Early-type (elliptical and lenticular) galaxies are not as gas poor as previously thought, and at least 40 per cent of local early-type galaxies are now known to contain molecular and/or atomic gas. This cold gas offers the opportunity to study recent galaxy evolution through the processes of cold gas acquisition, consumption (star formation) and removal. Molecular and atomic gas detection rates range from 10 to 34 per cent in red sequence early-type galaxies, depending on how the red sequence is defined, and from 50 to 70 per cent in blue early-type galaxies. Notably, massive red sequence early-type galaxies (stellar masses >5 × 1010 M⊙, derived from dynamical models) are found to have H I masses up to M(H I)/M* ∼ 0.06 and H2 masses up to M(H2)/M* ∼ 0.01. Some 20 per cent of all massive early-type galaxies may have retained atomic and/or molecular gas through their transition to the red sequence. However, kinematic and metallicity signatures of external gas accretion (either from satellite galaxies or the intergalactic medium) are also common, particularly at stellar masses ≤5 × 1010 M⊙, where such signatures are found in ∼50 per cent of H2-rich early-type galaxies. Our data are thus consistent with a scenario in which fast rotator early-type galaxies are quenched former spiral galaxies which have undergone some bulge growth processes, and in addition, some of them also experience cold gas accretion which can initiate a period of modest star formation activity. We discuss implications for the interpretation of colour–magnitude diagrams",
author = "L.M. Young and Nicholas Scott and Paolo Serra and Katherine Alatalo and Leo Blitz and Maxime Bois and Frederic Bournaud and Martin Bureau and Crocker, {Alison F.} and Michele Cappellari and R.L. Davies and T.A. Davis and {de Zeeuw}, P.T. and Pierre-Alain Duc and Eric Emsellem and Sadegh Khochfar and Davor Krajnovic and Harald Kuntschner and McDermid, {Richard M.} and Raffaella Morganti and Thorsten Naab and Tom Oosterloo and Marc Sarzi and Anne-Marie Weijmans",
note = "Date of Acceptance: 16/12/2013",
year = "2014",
month = nov,
day = "11",
doi = "10.1093/mnras/stt2474",
language = "English",
volume = "444",
pages = "3408--3426",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - The ATLAS3D project - XXVII

T2 - Cold gas and the colours and ages of early-type galaxies

AU - Young, L.M.

AU - Scott, Nicholas

AU - Serra, Paolo

AU - Alatalo, Katherine

AU - Blitz, Leo

AU - Bois, Maxime

AU - Bournaud, Frederic

AU - Bureau, Martin

AU - Crocker, Alison F.

AU - Cappellari, Michele

AU - Davies, R.L.

AU - Davis, T.A.

AU - de Zeeuw, P.T.

AU - Duc, Pierre-Alain

AU - Emsellem, Eric

AU - Khochfar, Sadegh

AU - Krajnovic, Davor

AU - Kuntschner, Harald

AU - McDermid, Richard M.

AU - Morganti, Raffaella

AU - Naab, Thorsten

AU - Oosterloo, Tom

AU - Sarzi, Marc

AU - Weijmans, Anne-Marie

N1 - Date of Acceptance: 16/12/2013

PY - 2014/11/11

Y1 - 2014/11/11

N2 - We present a study of the cold gas contents of the ATLAS3D early-type galaxies, in the context of their optical colours, near-ultraviolet colours and Hβ absorption line strengths. Early-type (elliptical and lenticular) galaxies are not as gas poor as previously thought, and at least 40 per cent of local early-type galaxies are now known to contain molecular and/or atomic gas. This cold gas offers the opportunity to study recent galaxy evolution through the processes of cold gas acquisition, consumption (star formation) and removal. Molecular and atomic gas detection rates range from 10 to 34 per cent in red sequence early-type galaxies, depending on how the red sequence is defined, and from 50 to 70 per cent in blue early-type galaxies. Notably, massive red sequence early-type galaxies (stellar masses >5 × 1010 M⊙, derived from dynamical models) are found to have H I masses up to M(H I)/M* ∼ 0.06 and H2 masses up to M(H2)/M* ∼ 0.01. Some 20 per cent of all massive early-type galaxies may have retained atomic and/or molecular gas through their transition to the red sequence. However, kinematic and metallicity signatures of external gas accretion (either from satellite galaxies or the intergalactic medium) are also common, particularly at stellar masses ≤5 × 1010 M⊙, where such signatures are found in ∼50 per cent of H2-rich early-type galaxies. Our data are thus consistent with a scenario in which fast rotator early-type galaxies are quenched former spiral galaxies which have undergone some bulge growth processes, and in addition, some of them also experience cold gas accretion which can initiate a period of modest star formation activity. We discuss implications for the interpretation of colour–magnitude diagrams

AB - We present a study of the cold gas contents of the ATLAS3D early-type galaxies, in the context of their optical colours, near-ultraviolet colours and Hβ absorption line strengths. Early-type (elliptical and lenticular) galaxies are not as gas poor as previously thought, and at least 40 per cent of local early-type galaxies are now known to contain molecular and/or atomic gas. This cold gas offers the opportunity to study recent galaxy evolution through the processes of cold gas acquisition, consumption (star formation) and removal. Molecular and atomic gas detection rates range from 10 to 34 per cent in red sequence early-type galaxies, depending on how the red sequence is defined, and from 50 to 70 per cent in blue early-type galaxies. Notably, massive red sequence early-type galaxies (stellar masses >5 × 1010 M⊙, derived from dynamical models) are found to have H I masses up to M(H I)/M* ∼ 0.06 and H2 masses up to M(H2)/M* ∼ 0.01. Some 20 per cent of all massive early-type galaxies may have retained atomic and/or molecular gas through their transition to the red sequence. However, kinematic and metallicity signatures of external gas accretion (either from satellite galaxies or the intergalactic medium) are also common, particularly at stellar masses ≤5 × 1010 M⊙, where such signatures are found in ∼50 per cent of H2-rich early-type galaxies. Our data are thus consistent with a scenario in which fast rotator early-type galaxies are quenched former spiral galaxies which have undergone some bulge growth processes, and in addition, some of them also experience cold gas accretion which can initiate a period of modest star formation activity. We discuss implications for the interpretation of colour–magnitude diagrams

U2 - 10.1093/mnras/stt2474

DO - 10.1093/mnras/stt2474

M3 - Article

VL - 444

SP - 3408

EP - 3426

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -