The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters

S. Lavoie; J.P. Willis; J. Démoclès; D. Eckert; F. Gastaldello; G.P. Smith; C. Lidman; C. Adami; F. Pacaud; M. Pierre; N. Clerc; M. Lieu; L. Chiappetti; B. Altieri; F. Ardila; I. Baldry; A. Bongiorno; S. Desai; A. Elyiv; L. Faccioli; B. Garilli; M.W. Groote; L. Guennou; L. Guzzo; J. Liske; S. McGee; O. Melnyk; M.S. Owers; B. Poggianti; T.J. Ponman; M. Scodeggio; L. Spitler; R.J. Tuffs

doi:10.1093/mnras/stw1906

The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters

S. Lavoie, J.P. Willis, J. Démoclès, D. Eckert, F. Gastaldello, G.P. Smith, C. Lidman, C. Adami, F. Pacaud, M. Pierre, N. Clerc, M. Lieu, L. Chiappetti, B. Altieri, F. Ardila, I. Baldry, A. Bongiorno, S. Desai, A. Elyiv, L. FaccioliB. Garilli, M.W. Groote, L. Guennou, L. Guzzo, J. Liske, S. McGee, O. Melnyk, M.S. Owers, B. Poggianti, T.J. Ponman, M. Scodeggio, L. Spitler, R.J. Tuffs

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

167 Downloads (Pure)

Abstract

The growth of brightest cluster galaxies (BCGs) is closely related to the properties of their host cluster. We present evidence for dry mergers as the dominant source of BCG mass growth at z ≲ 1 in the XXL 100 brightest cluster sample. We use the global red sequence, Hα emission and mean star formation history to show that BCGs in the sample possess star formation levels comparable to field ellipticals of similar stellar mass and redshift. XXL 100 brightest clusters are less massive on average than those in other X-ray selected samples such as LoCuSS or HIFLUGCS. Few clusters in the sample display high central gas concentration, rendering inefficient the growth of BCGs via star formation resulting from the accretion of cool gas. Using measures of the relaxation state of their host clusters, we show that BCGs grow as relaxation proceeds. We find that the BCG stellar mass corresponds to a relatively constant fraction 1 per cent of the total cluster mass in relaxed systems. We also show that, following a cluster scale merger event, the BCG stellar mass lags behind the expected value from the Mcluster-MBCG relation but subsequently accretes stellar mass via dry mergers as the BCG and cluster evolve towards a relaxed state. © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

Original language	English
Pages (from-to)	4141-4156
Number of pages	16
Journal	Royal Astronomical Society. Monthly Notices
Volume	462
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stw1906
Publication status	Published - 2 Aug 2016

Bibliographical note

Export Date: 15 August 2017

CODEN: MNRAA

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Keywords

CD
Galaxies: clusters: general
Galaxies: elliptical and lenticular
Galaxies: evolution
Galaxies: interactions
X-rays: galaxies: clusters

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10.1093/mnras/stw1906

Lavoie_et_al_The_XXL_survey_XV_evidence_of_dry_Monthly_Notices_of_the_Royal_Astronomical_Society_2017
Checked for eligibility: 15/08/2017 This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Cite this

Lavoie, S., Willis, J. P., Démoclès, J., Eckert, D., Gastaldello, F., Smith, G. P., Lidman, C., Adami, C., Pacaud, F., Pierre, M., Clerc, N., Lieu, M., Chiappetti, L., Altieri, B., Ardila, F., Baldry, I., Bongiorno, A., Desai, S., Elyiv, A., ... Tuffs, R. J. (2016). The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters. Royal Astronomical Society. Monthly Notices, 462(4), 4141-4156. https://doi.org/10.1093/mnras/stw1906

@article{1c9ec8828a814eb7b5eb3a8798185e31,

title = "The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters",

abstract = "The growth of brightest cluster galaxies (BCGs) is closely related to the properties of their host cluster. We present evidence for dry mergers as the dominant source of BCG mass growth at z ≲ 1 in the XXL 100 brightest cluster sample. We use the global red sequence, Hα emission and mean star formation history to show that BCGs in the sample possess star formation levels comparable to field ellipticals of similar stellar mass and redshift. XXL 100 brightest clusters are less massive on average than those in other X-ray selected samples such as LoCuSS or HIFLUGCS. Few clusters in the sample display high central gas concentration, rendering inefficient the growth of BCGs via star formation resulting from the accretion of cool gas. Using measures of the relaxation state of their host clusters, we show that BCGs grow as relaxation proceeds. We find that the BCG stellar mass corresponds to a relatively constant fraction 1 per cent of the total cluster mass in relaxed systems. We also show that, following a cluster scale merger event, the BCG stellar mass lags behind the expected value from the Mcluster-MBCG relation but subsequently accretes stellar mass via dry mergers as the BCG and cluster evolve towards a relaxed state. {\textcopyright} 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.",

keywords = "CD, Galaxies: clusters: general, Galaxies: elliptical and lenticular, Galaxies: evolution, Galaxies: interactions, X-rays: galaxies: clusters",

author = "S. Lavoie and J.P. Willis and J. D{\'e}mocl{\`e}s and D. Eckert and F. Gastaldello and G.P. Smith and C. Lidman and C. Adami and F. Pacaud and M. Pierre and N. Clerc and M. Lieu and L. Chiappetti and B. Altieri and F. Ardila and I. Baldry and A. Bongiorno and S. Desai and A. Elyiv and L. Faccioli and B. Garilli and M.W. Groote and L. Guennou and L. Guzzo and J. Liske and S. McGee and O. Melnyk and M.S. Owers and B. Poggianti and T.J. Ponman and M. Scodeggio and L. Spitler and R.J. Tuffs",

note = "Export Date: 15 August 2017 CODEN: MNRAA References: Adami, C., Biviano, A., Mazure, A., (1998) A&A, 331, p. 439; Adami, C., (2011) A&A, 526, p. A18; Ahn, C.P., (2014) ApJS, 211, p. 17; Baldry, I.K., (2014) MNRAS, 441, p. 2240; Ben{\'i}tez, N., (2000) ApJ, 536, p. 571; Bernardi, M., Hyde, J.B., Sheth, R.K., Miller, C.J., Robert, R.C., (2007) AJ, 133, p. 1741; Bertin, E., (2011) ASP Conf. Ser. Automated Morphometry with SExtractor and PSFEx, 442, p. 435. , Evans I. N., Accomazzi A., Mink D. J., Rots A. H., eds, Astron. Soc. Pac., San Francisco; Bertin, E., Arnouts, S., (1996) A&AS, 117, p. 393; Bildfell, C., Hoekstra, H., Babul, A., Mahdavi, A., (2008) MNRAS, 389, p. 1637; Bĭrzan, L., Rafferty, D.A., Nulsen, P.E.J., McNamara, B.R., R{\"o}ttgering, H.J.A., Wise, M.W., Mittal, R., (2012) MNRAS, 427, p. 3468; Biviano, A., Katgert, P., Thomas, T., Adami, C., (2002) A&A, 387, p. 8; Bleem, L.E., Stalder, B., Brodwin, M., Busha, M.T., Gladders, M.D., High, F.W., Rest, A., Wechsler, R.H., (2015) ApJSS, 216, p. 20; Bruzual, G., Charlot, S., (2003) MNRAS, 344, p. 1000; Burke, C., Collins, C.A., (2013) MNRAS, 434, p. 2856; Butcher, H., Oemler, A.J., (1984) ApJ, 285, p. 426; Chabrier, G., (2003) PASP, 115, p. 763; Chandrasekhar, S., (1943) ApJ, 97, p. 255; Clerc, N., Pierre, M., Pacaud, F., Sadibekova, T., (2012) MNRAS, 423, p. 3545; Clerc, N., (2014) MNRAS, 444, p. 2723; Collins, C.A., (2009) Nature, 458, p. 603; Conroy, C., Gunn, J.E., White, M., (2009) ApJ, 699, p. 486; Coupon, J., (2009) A&A, 500, p. 981; Coupon, J., (2015) MNRAS, 449, p. 1352; Crawford, C.S., Allen, S.W., Ebeling, H., Edge, A.C., Fabian, A.C., (1999) MNRAS, 306, p. 857; Dawson, K.S., (2013) AJ, 145, p. 10; De Lucia, G., Blaizot, J., (2007) MNRAS, 375, p. 2; De Lucia, G., Springel, V., White, S.D.M., Croton, D., Kauffmann, G., (2006) MNRAS, 366, p. 499; Desai, S., (2012) ApJ, 757, p. 83; Donahue, M., Stocke, J.T., Giola, I.M., (1992) ApJ, 385, p. 49; Dressler, A., (1997) ApJ, 490, p. 577; Edge, A.C., Stewart, G.C., Fabian, A.C., (1992) MNRAS, 258, p. 177; Edwards, L.O.V., Patton, D.R., (2012) MNRAS, 425, p. 287; Edwards, L.O.V., Hudson, M.J., Balogh, M.L., Smith, R.J., (2007) MNRAS, 379, p. 100; Eisenstein, D.J., (2011) AJ, 142, p. 72; Elliott, J., de Souza, R.S., Krone-Martins, A., Cameron, E., Ishida, E.E.O., Hilbe, J., (2015) Astron.Comput, 10, p. 61; Fabian, A.C., (2012) ARA&A, 50, p. 455; Flaugher, B., (2015) AJ, 150, p. 150; Garilli, B., (2014) A&A, 562, p. A23; Giles, P.A., (2016) A&A, 592, p. A3. , (XXL Paper III); Gonzales, A.H., Zaritsky, D., Zabuldoff, A.I., (2007) ApJ, 666, p. 147; Gunn, J.E., (2006) AJ, 131, p. 2332; Guo, F., Oh, S.P., (2009) MNRAS, 400, p. 1992; Guzzo, L., (2014) A&A, 566, p. A108; Gwyn, S.D.J., (2012) AJ, 143, p. 38; Haarsma, D.B., (2010) ApJ, 713, p. 1037; Henriques, B.M.B., White, S.D.M., Lemson, G., Thomas, P.A., Guo, Q., Marleau, G.-D., Overzier, R.A., (2012) MNRAS, 421, p. 2904; Hopkins, A.M., (2012) MNRAS, 430, p. 2047; Hudson, D.S., Mittal, R., Reiprich, T.H., Nulsen, P.E.J., Andernach, H., Sarazin, C.L., (2010) A&A, 513, p. 37; Ilbert, O., (2006) A&A, 457, p. 841; Leauthaud, A., (2012) ApJ, 744, p. 159; Le Brun, A.M.C., McCarthy, I.G., Schaye, J., Ponman, T.J., (2014) MNRAS, 441, p. 1270; Le F{\`e}vre, O., (2003) Proc. SPIEConf.Ser. Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, 4841, p. 1670. , IyeM., Moorwood A. F. M., eds, SPIE, Bellingham; Le F{\`e}vre, O., (2005) A&A, 439, p. 845; Lemson, G., (2006), preprint (arXiv:astro-ph/0608019); Lemson, G., Springel, V., (2006) Astronomical Data Analysis Software and Systems XV, ASP Conf. Ser, Cosmological Simulations in a Relational Database: Modelling and Storing Merger Trees, 351. , Astron. Soc.Pac., San Francisco; Lidman, C., (2012) MNRAS, 427, p. 550; Lidman, C., (2013) MNRAS, 433, p. 825; Lidman, C., (2016) Publ. Astron. Soc. Aust, 33, p. 1; Lieu, M., (2016) A&A, 592, p. A4. , (XXL Paper IV); Liske, J., (2015) MNRAS, 452, p. 2087; Liu, F.S., Xia, X.Y., Mao, S., Wu, H., Deng, Z.G., (2008) MNRAS, 385, p. 23; Liu, F.S., Mao, S., Deng, Z.G., Xia, X.Y., Wen, Z.L., (2009) MNRAS, 396, p. 2003; Liu, F.S., Mao, S., Meng, X.M., (2012) MNRAS, 423, p. 422; Liu, F.S., (2013) ApJ, 769, p. 147; Liu, F.S., Lei, F.J., Meng, X.M., Jiang, D.F., (2015) MNRAS, 447, p. 1491; Makino, J., Hut, P., (1997) ApJ, 481, p. 83; Maraston, C., (2013) MNRAS, 435, p. 2764; McDonald, M., (2016) ApJ, 817, p. 86; McIntosh, D.H., Guo, Y., Hertzberg, J., Katz, N., Mo, H.J., van den Bosch, F.C., Yang, X., (2008) MNRAS, 388, p. 1537; Menanteau, F., (2010) ApJS, 191, p. 340; Merritt, D., (1984) ApJ, 276, p. 26; Merritt, D., (1985) ApJ, 289, p. 18; Merten, J., (2015) ApJ, 806, p. 4; Miller, L., (2013) MNRAS, 429, p. 2858; Mohr, J.J., (2012) Proc. SPIE Conf. 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year = "2016",

month = aug,

day = "2",

doi = "10.1093/mnras/stw1906",

language = "English",

volume = "462",

pages = "4141--4156",

journal = "Royal Astronomical Society. Monthly Notices",

issn = "0035-8711",

publisher = "SIPRI/Oxford University Press",

number = "4",

}

Lavoie, S, Willis, JP, Démoclès, J, Eckert, D, Gastaldello, F, Smith, GP, Lidman, C, Adami, C, Pacaud, F, Pierre, M, Clerc, N, Lieu, M, Chiappetti, L, Altieri, B, Ardila, F, Baldry, I, Bongiorno, A, Desai, S, Elyiv, A, Faccioli, L, Garilli, B, Groote, MW, Guennou, L, Guzzo, L, Liske, J, McGee, S, Melnyk, O, Owers, MS, Poggianti, B, Ponman, TJ, Scodeggio, M, Spitler, L & Tuffs, RJ 2016, 'The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters', Royal Astronomical Society. Monthly Notices, vol. 462, no. 4, pp. 4141-4156. https://doi.org/10.1093/mnras/stw1906

TY - JOUR

T1 - The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters

AU - Lavoie, S.

AU - Willis, J.P.

AU - Démoclès, J.

AU - Eckert, D.

AU - Gastaldello, F.

AU - Smith, G.P.

AU - Lidman, C.

AU - Adami, C.

AU - Pacaud, F.

AU - Pierre, M.

AU - Clerc, N.

AU - Lieu, M.

AU - Chiappetti, L.

AU - Altieri, B.

AU - Ardila, F.

AU - Baldry, I.

AU - Bongiorno, A.

AU - Desai, S.

AU - Elyiv, A.

AU - Faccioli, L.

AU - Garilli, B.

AU - Groote, M.W.

AU - Guennou, L.

AU - Guzzo, L.

AU - Liske, J.

AU - McGee, S.

AU - Melnyk, O.

AU - Owers, M.S.

AU - Poggianti, B.

AU - Ponman, T.J.

AU - Scodeggio, M.

AU - Spitler, L.

AU - Tuffs, R.J.

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PY - 2016/8/2

Y1 - 2016/8/2

N2 - The growth of brightest cluster galaxies (BCGs) is closely related to the properties of their host cluster. We present evidence for dry mergers as the dominant source of BCG mass growth at z ≲ 1 in the XXL 100 brightest cluster sample. We use the global red sequence, Hα emission and mean star formation history to show that BCGs in the sample possess star formation levels comparable to field ellipticals of similar stellar mass and redshift. XXL 100 brightest clusters are less massive on average than those in other X-ray selected samples such as LoCuSS or HIFLUGCS. Few clusters in the sample display high central gas concentration, rendering inefficient the growth of BCGs via star formation resulting from the accretion of cool gas. Using measures of the relaxation state of their host clusters, we show that BCGs grow as relaxation proceeds. We find that the BCG stellar mass corresponds to a relatively constant fraction 1 per cent of the total cluster mass in relaxed systems. We also show that, following a cluster scale merger event, the BCG stellar mass lags behind the expected value from the Mcluster-MBCG relation but subsequently accretes stellar mass via dry mergers as the BCG and cluster evolve towards a relaxed state. © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

AB - The growth of brightest cluster galaxies (BCGs) is closely related to the properties of their host cluster. We present evidence for dry mergers as the dominant source of BCG mass growth at z ≲ 1 in the XXL 100 brightest cluster sample. We use the global red sequence, Hα emission and mean star formation history to show that BCGs in the sample possess star formation levels comparable to field ellipticals of similar stellar mass and redshift. XXL 100 brightest clusters are less massive on average than those in other X-ray selected samples such as LoCuSS or HIFLUGCS. Few clusters in the sample display high central gas concentration, rendering inefficient the growth of BCGs via star formation resulting from the accretion of cool gas. Using measures of the relaxation state of their host clusters, we show that BCGs grow as relaxation proceeds. We find that the BCG stellar mass corresponds to a relatively constant fraction 1 per cent of the total cluster mass in relaxed systems. We also show that, following a cluster scale merger event, the BCG stellar mass lags behind the expected value from the Mcluster-MBCG relation but subsequently accretes stellar mass via dry mergers as the BCG and cluster evolve towards a relaxed state. © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

KW - CD

KW - Galaxies: clusters: general

KW - Galaxies: elliptical and lenticular

KW - Galaxies: evolution

KW - Galaxies: interactions

KW - X-rays: galaxies: clusters

U2 - 10.1093/mnras/stw1906

DO - 10.1093/mnras/stw1906

M3 - Article

SN - 0035-8711

VL - 462

SP - 4141

EP - 4156

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

IS - 4

ER -

The XXL survey XV: Evidence for dry merger driven BCG growth in XXL-100-GC X-ray clusters

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Birmingham Astrophysics : Consolidated Grant 2013-2016

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