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The ATLAS3D project - XXVI: H I discs in real and simulated fast and slow rotators

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The ATLAS3D project - XXVI : H I discs in real and simulated fast and slow rotators. / Serra, Paolo; Oser, Ludwig; Krajnović, Davor; Naab, Thorsten; Oosterloo, Tom; Morganti, Raffaella; Cappellari, Michele; Emsellem, Eric; Young, L.M.; Blitz, Leo; Davis, T.A.; Duc, Pierre-Alain; Hirschmann, Michaela; Weijmans, Anne-Marie; Alatalo, Katherine; Bayet, Estelle; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Davies, R.L.; de Zeeuw, P.T.; Khochfar, Sadegh; Kuntschner, Harald; Lablanche, Pierre-Yves; McDermid, Richard M.; Sarzi, Marc; Scott, Nicholas.

In: Monthly Notices of the Royal Astronomical Society, Vol. 444, No. 4, 11.11.2014, p. 3388-3407.

Research output: Contribution to journalArticlepeer-review

Harvard

Serra, P, Oser, L, Krajnović, D, Naab, T, Oosterloo, T, Morganti, R, Cappellari, M, Emsellem, E, Young, LM, Blitz, L, Davis, TA, Duc, P-A, Hirschmann, M, Weijmans, A-M, Alatalo, K, Bayet, E, Bois, M, Bournaud, F, Bureau, M, Crocker, AF, Davies, RL, de Zeeuw, PT, Khochfar, S, Kuntschner, H, Lablanche, P-Y, McDermid, RM, Sarzi, M & Scott, N 2014, 'The ATLAS3D project - XXVI: H I discs in real and simulated fast and slow rotators', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 4, pp. 3388-3407. https://doi.org/10.1093/mnras/stt2496

APA

Serra, P., Oser, L., Krajnović, D., Naab, T., Oosterloo, T., Morganti, R., Cappellari, M., Emsellem, E., Young, L. M., Blitz, L., Davis, T. A., Duc, P-A., Hirschmann, M., Weijmans, A-M., Alatalo, K., Bayet, E., Bois, M., Bournaud, F., Bureau, M., ... Scott, N. (2014). The ATLAS3D project - XXVI: H I discs in real and simulated fast and slow rotators. Monthly Notices of the Royal Astronomical Society, 444(4), 3388-3407. https://doi.org/10.1093/mnras/stt2496

Vancouver

Author

Serra, Paolo ; Oser, Ludwig ; Krajnović, Davor ; Naab, Thorsten ; Oosterloo, Tom ; Morganti, Raffaella ; Cappellari, Michele ; Emsellem, Eric ; Young, L.M. ; Blitz, Leo ; Davis, T.A. ; Duc, Pierre-Alain ; Hirschmann, Michaela ; Weijmans, Anne-Marie ; Alatalo, Katherine ; Bayet, Estelle ; Bois, Maxime ; Bournaud, Frederic ; Bureau, Martin ; Crocker, Alison F. ; Davies, R.L. ; de Zeeuw, P.T. ; Khochfar, Sadegh ; Kuntschner, Harald ; Lablanche, Pierre-Yves ; McDermid, Richard M. ; Sarzi, Marc ; Scott, Nicholas. / The ATLAS3D project - XXVI : H I discs in real and simulated fast and slow rotators. In: Monthly Notices of the Royal Astronomical Society. 2014 ; Vol. 444, No. 4. pp. 3388-3407.

Bibtex

@article{ccf97c622b4d47e686f65f6efe285ce2,
title = "The ATLAS3D project - XXVI: H I discs in real and simulated fast and slow rotators",
abstract = "One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of H I with size from a few to tens of kpc and mass up to ∼109 M⊙. Here we investigate whether this H I is related to the presence of a stellar disc within the host making use of the classification of ETGs in fast and slow rotators (FR/SR). We find a large diversity of H I masses and morphologies within both families. Surprisingly, SRs are detected as often, host as much H I and have a similar rate of H I discs/rings as FRs. Accretion of H I is therefore not always linked to the growth of an inner stellar disc. The weak relation between H I and stellar disc is confirmed by their frequent kinematical misalignment in FRs, including cases of polar and counterrotating gas. In SRs the H I is usually polar. This complex picture highlights a diversity of ETG formation histories which may be lost in the relative simplicity of their inner structure and emerges when studying their outer regions. We find that Λ CDM hydrodynamical simulations have difficulties reproducing the H I properties of ETGs. The gas discs formed in simulations are either too massive or too small depending on the star formation feedback implementation. Kinematical misalignments match the observations only qualitatively. The main point of conflict is that nearly all simulated FRs and a large fraction of all simulated SRs host corotating H I. This establishes the H I properties of ETGs as a novel challenge to simulations",
author = "Paolo Serra and Ludwig Oser and Davor Krajnovi{\'c} and Thorsten Naab and Tom Oosterloo and Raffaella Morganti and Michele Cappellari and Eric Emsellem and L.M. Young and Leo Blitz and T.A. Davis and Pierre-Alain Duc and Michaela Hirschmann and Anne-Marie Weijmans and Katherine Alatalo and Estelle Bayet and Maxime Bois and Frederic Bournaud and Martin Bureau and Crocker, {Alison F.} and R.L. Davies and {de Zeeuw}, P.T. and Sadegh Khochfar and Harald Kuntschner and Pierre-Yves Lablanche and McDermid, {Richard M.} and Marc Sarzi and Nicholas Scott",
year = "2014",
month = nov,
day = "11",
doi = "10.1093/mnras/stt2496",
language = "English",
volume = "444",
pages = "3388--3407",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - The ATLAS3D project - XXVI

T2 - H I discs in real and simulated fast and slow rotators

AU - Serra, Paolo

AU - Oser, Ludwig

AU - Krajnović, Davor

AU - Naab, Thorsten

AU - Oosterloo, Tom

AU - Morganti, Raffaella

AU - Cappellari, Michele

AU - Emsellem, Eric

AU - Young, L.M.

AU - Blitz, Leo

AU - Davis, T.A.

AU - Duc, Pierre-Alain

AU - Hirschmann, Michaela

AU - Weijmans, Anne-Marie

AU - Alatalo, Katherine

AU - Bayet, Estelle

AU - Bois, Maxime

AU - Bournaud, Frederic

AU - Bureau, Martin

AU - Crocker, Alison F.

AU - Davies, R.L.

AU - de Zeeuw, P.T.

AU - Khochfar, Sadegh

AU - Kuntschner, Harald

AU - Lablanche, Pierre-Yves

AU - McDermid, Richard M.

AU - Sarzi, Marc

AU - Scott, Nicholas

PY - 2014/11/11

Y1 - 2014/11/11

N2 - One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of H I with size from a few to tens of kpc and mass up to ∼109 M⊙. Here we investigate whether this H I is related to the presence of a stellar disc within the host making use of the classification of ETGs in fast and slow rotators (FR/SR). We find a large diversity of H I masses and morphologies within both families. Surprisingly, SRs are detected as often, host as much H I and have a similar rate of H I discs/rings as FRs. Accretion of H I is therefore not always linked to the growth of an inner stellar disc. The weak relation between H I and stellar disc is confirmed by their frequent kinematical misalignment in FRs, including cases of polar and counterrotating gas. In SRs the H I is usually polar. This complex picture highlights a diversity of ETG formation histories which may be lost in the relative simplicity of their inner structure and emerges when studying their outer regions. We find that Λ CDM hydrodynamical simulations have difficulties reproducing the H I properties of ETGs. The gas discs formed in simulations are either too massive or too small depending on the star formation feedback implementation. Kinematical misalignments match the observations only qualitatively. The main point of conflict is that nearly all simulated FRs and a large fraction of all simulated SRs host corotating H I. This establishes the H I properties of ETGs as a novel challenge to simulations

AB - One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of H I with size from a few to tens of kpc and mass up to ∼109 M⊙. Here we investigate whether this H I is related to the presence of a stellar disc within the host making use of the classification of ETGs in fast and slow rotators (FR/SR). We find a large diversity of H I masses and morphologies within both families. Surprisingly, SRs are detected as often, host as much H I and have a similar rate of H I discs/rings as FRs. Accretion of H I is therefore not always linked to the growth of an inner stellar disc. The weak relation between H I and stellar disc is confirmed by their frequent kinematical misalignment in FRs, including cases of polar and counterrotating gas. In SRs the H I is usually polar. This complex picture highlights a diversity of ETG formation histories which may be lost in the relative simplicity of their inner structure and emerges when studying their outer regions. We find that Λ CDM hydrodynamical simulations have difficulties reproducing the H I properties of ETGs. The gas discs formed in simulations are either too massive or too small depending on the star formation feedback implementation. Kinematical misalignments match the observations only qualitatively. The main point of conflict is that nearly all simulated FRs and a large fraction of all simulated SRs host corotating H I. This establishes the H I properties of ETGs as a novel challenge to simulations

U2 - 10.1093/mnras/stt2496

DO - 10.1093/mnras/stt2496

M3 - Article

VL - 444

SP - 3388

EP - 3407

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -