Publication: Constraints on the merging channel of massive galaxies since z∼1
Loading...
Official URL
Full text at PDC
Publication Date
2014-08
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Abstract
We probe the merging channel of massive galaxies over the z= 0.3 − 1.3 redshift window by studying close pairs in a sample of 238 galaxies with stellar mass >∼ 1011M⊙, from the SHARDS survey. SHARDS provides medium band photometry equivalent to low-resolution optical spectra (R∼50), allowing us to obtain extremely accurate photometric redshifts (median |∆z|/(1 + z) ∼ 0.55%) and to improve the constraints on the age distribution of the stellar populations. Our dataset is volume-limited, probing merger progenitors with mass ratios 1:100 (µ ≡ Msat/Mcen = 0.01) out to z=1.3. A strong correlation is found between the age difference of host and companion galaxy and stellar mass ratio, from negligible age differences in major mergers to age differences ∼4 Gyr for 1:100 minor mergers. However, this correlation is simply a reflection of the mass-age trend in the general population. The dominant contributor to the growth of massive galaxies corresponds to mass ratios µ >∼ 0.3, followed by a decrease in the fractional mass growth rate linearly proportional to log µ, at least down to µ ∼ 0.01, suggesting a decreasing role of mergers involving lowmass companions, especially if dynamical friction timescales are taken into account. A simple model results in an upper limit for the average mass growth rate of massive galaxies of (∆M/M)/∆t ∼ 0.08 ± 0.02 Gyr−1 , over the z ∼ 0.3. The majority of the stellar mass contributed by mergers does not introduce significantly younger populations, in agreement with the small radial age gradients observed in present-day early-type galaxies.
Description
© 2014 RAS.
We thank Carlos López-Sanjuan for his very valuable comments and suggestions. SHARDS is currently funded by the Spanish MICINN/MINECO with grant AYA2012-31277. Based on observations made with the Gran Telescopio Canarias (GTC), installed at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias (IAC), in the island of La Palma. The authors acknowledge the use of the UCL Legion High Performance Computing Facility (Legion@UCL), and associated support services, in the completion of this work. IF acknowledges support from the IAC to carry out this research project. EMQ acknowledges the support of the European Research Council via the award of a Consolidator Grant (PI McLure). AH-C acknowledges support from the Augusto González Linares programme (Universidad de Cantabria), and the Spanish “Plan Nacional” grant AYA2012- 31447. This work has been supported by the ‘Programa Nacional de Astronomía y Astrofísica’ of the Spanish Ministry of Science and Innovation under grant AYA2010-21322-C03-02. We have made extensive use of the Rainbow Cosmological Surveys Database, operated by the Universidad Complutense de Madrid (UCM), in partnership with the University of California Observatories at Santa Cruz (UCO/Lick, UCSC).
UCM subjects
Unesco subjects
Keywords
Citation
Aller, L. H., ed., 1984, Astrophys. Space Sci. Libr. Vol. 112, Physics of Thermal Gaseous Nebulæ . Reidel, Dordrecht
Anders, P. & Fritze-von Alvensleben, U., 2003, A&A, 401, 1063
Arnouts, S., et al. 2007, A& A, 476, 137
Baldry, I. K., Glazebrook, K., Brinkmann, J., Ivezi´c, Z., Lupton, R. H, Nichol, R. C., Szalay, A. S., 2004, ApJ, 600, 681
Balogh M. L., Morris S. L., Yee H. K. C., Carlberg, R. G., Ellingson, E., 1999, ApJ, 527, 54
Barro, G., et al. 2011, ApJS, 193, 13
Bell, E. F., McIntosh, D. H., Katz, N., Weinberg, M. D., 2003, ApJS, 149, 289
Bell, E. F., et al., 2008, ApJ, 680, 295
Bundy, K., Fukugita, M., Ellis, R. S., Targett, T. A., Belli, S., Kodama, T., 2009, ApJ, 697, 1369
Bluck, A. F. L., Conselice, C. J., Buitrago, F., Grützbauch, R., Hoyos, C., Mortlock, A., Bauer, A. E., 2012, ApJ, 747, 34
Brammer, G. B., van Dokkum, P. G., Coppi, P., 2008, ApJ, 686, 1503
Brammer, G. B., et al., 2011, ApJ, 739, 24
Bruzual G., Charlot S., 2003, MNRAS, 344, 1000
Cameron, E., 2011, PASA, 28, 128
Cardelli, J. A., Clayton, G. C., Mathis, J. S., 1989, ApJ, 345, 245
Cenarro, A. J., Gorgas, J., Vazdekis, A., Cardiel, N., Peletier, R. F., 2003, MNRAS, 339, L12
Chabrier, G., 2003, PASP, 115, 763
Cid Fernandes, R., Mateus, A., Sodré, L., Stasínska, G,. Gomes, J. M., 2005, MNRAS, 358, 363
Conselice, C. J., 2006, ApJ, 638, 686
Cooper, M. C., et al. 2012, MNRAS, 419, 3018
Cowie, L. L., Barger, A. J., Hu, E. M., Capak, P., Songalia, A., 2004, AJ, 127, 3137
Daddi E., et al., 2005, ApJ, 626, 680
de la Rosa, I. G., La Barbera, F., Ferreras, I., de Carvalho, R. R., 2011, MNRAS, 418, L74
de Ravel, L., et al., 2011, arXiv:1104.5470
Faber, S. M., et al., 2007, ApJ, 665, 265
Ferreras I., Lisker T., Carollo C. M., Lilly S. J., Mobasher B., 2005, ApJ, 635, 243
Ferreras I., Lisker T., Pasquali A., Kaviraj S., 2009a, MNRAS, 395, 554
Ferreras I., et al., 2009b, ApJ, 706, 158
Ferreras I., et al., 2012, AJ, 144, 47
Ferreras I., La Barbera, F., de la Rosa, I. G., Vazdekis, A., de Carvalho, R. R., Falcón-Barroso, J., Ricciardelli, E., 2013, MNRAS, 429, L15
Grogin, N. A., et al. 2011, ApJS, 197, 35
Huang, S., Ho, L. C., Peng, C. Y., Li, Z.-Y., Barth, A. J., 2013, ApJ, 768, L28
Hernán-Caballero, A., et al., 2013, MNRAS, 434, 2136
Ichikawa, T., et al., 2007, PASJ, 59, 1081
Jiang, C. Y., Jing, Y. P., Han, J., 2014, ApJ, 790, 7
Koekemoer, A. M., et al. 2011, ApJS, 197, 36
Lotz, J. M., Jonsson, P., Cox, T. J., Croton, D., Primack, J. R., Somerville, R. S., Stewart, K., 2011, ApJ, 742, 103
Kaviraj, S., et al., 2007, ApJS, 173, 619
Kitzbichler, M. G., White, S. D. M., 2008, MNRAS, 391, 1489
Kron, R. G., 1980, ApJS, 43, 305
La Barbera, F., Ferreras, I., de Carvalho, R. R., Lopes, P. A. A., Pasquali, A., de la Rosa, I. G., De Lucia, G., ApJ, 740, L41
La Barbera, F., Ferreras, I., de Carvalho, R. R., Bruzual, G., Charlot, S., Pasquali, A., Merlin, E., 2012, MNRAS, 426, 2300
La Barbera, F., Ferreras, I., Vazdekis, A., de la Rosa, I. G., de Carvalho, R. R., Trevisan, M., Falc´on-Barroso, J., Ricciardelli, E., 2013, MNRAS, 433, 3017
Läsker, R., van den Bosch, R. C. E., van de Ven, G., Ferreras, I., La Barbera, F., Vazdekis, A., Falcón-Barroso, J., 2013, MNRAS, 434, L31
Lackner, C. N., Cen, R., Ostriker, J. P., Joung, M. R., 2012, MNRAS, 425, 641
Lin, L., et al. 2010, ApJ, 718, 1158
López-Sanjuan, C., et al., 2011, A&A, 530, 20
López-Sanjuan, C., et al., 2012, A&A, 548, A7
López-Sanjuan, C., et al., 2014, A&A, 564, A127
Mármol-Queralt´o E., Trujillo I., P´erez-Gonz´alez P. G., Varela J., Barro G., 2012, MNRAS, 422, 2187
Mármol-Queralt´o, E., Trujillo, I., Villar, V., Barro, G., P´erezGonz´alez, P. G., 2013, MNRAS, 429, 792
Montes, M., Trujillo, I., Prieto, M. A., Acosta-Pulido, J. A., 2014, MNRAS, 439, 990
Moster, B. P., Somerville, R. S., Maulbetsch, C., van den Bosch, F. C., Macciò, A. V., Naab, T., Oser, L., 2010, ApJ, 710, 903
Naab T., Johansson P. H., Ostriker J. P., 2009, ApJ, 699, L178
Newman, A. B., Ellis, R. S., Bundy, K., Treu, T., 2012, ApJ, 746, 162
Oser, L., Naab, T., Ostriker, J. P., Johansson, P. H., 2012, ApJ, 744, 63
Patton, D. R, Carlberg, R. G., Marzke, R. O., Pritchet, C. J., da Costa, L. N., Pellergini, P. S., 2000, ApJ, 536, 153
Pérez-González P. G., Trujillo I., Barro G., Gallego J., Zamorano J., Conselice C. J., 2008, ApJ, 687, 50
Pérez-González P. G., et al., 2008, ApJ, 675, 234
Pérez-González P. G., et al., 2013, ApJ, 762, 46
Pickles, A. J., 1998, PASP, 110, 863
Quilis, V. & Trujillo, I., 2012, ApJ, 752, L19
Rogers, B., Ferreras, I., Kaviraj, S., Pasquali, A., Sarzi, M., 2009, MNRAS, 399, 2172
Ruiz, P., Trujillo, I., Mármol-Queralt´o, E., 2014, MNRAS, 442, 347
Sánchez-Blázquez, P., Forbes, D. A., Strader, J., Brodie, J., Proctor, R., 2007, MNRAS, 377, 759
Shankar, F., Marulli, F., Bernardi, M., Mei, S., Meert, A., Vikram, V., 2013, MNRAS, 428, 109
Tal, T., van Dokkum, P. G., Franx, M., Leja, J., Wake, D. A., Whitaker, K. E., 2013, ApJ, 769, 31
Thomas, D., Maraston, C., Bender, R., Mendes de Oliveira, C., 2005, ApJ, 621, 673
Trujillo I., Ferreras I., de La Rosa I. G., 2011, MNRAS, 415, 3903 Trujillo I., et al., 2006, ApJ, 650, 18
Trujillo I., Conselice C. J., Bundy K., Cooper M. C., Eisenhardt P., Ellis R. S., 2007, MNRAS, 382, 109
Vanden Berk, D. E., et al., 2001, AJ, 122, 549 van den Bosch, F. C., Aquino, D.,Yang, X.,Mo, H. J., Pasquali, A., McIntosh, D. H., Weinmann, S. M., Kang, X., 2008, MNRAS, 387, 79
van Dokkum, P. G., et al., 2010, ApJ, 709, 1018 van Dokkum, P. G., Conroy, C., 2010, Nature, 468, 940
Wang, W.-H., Cowie, L. L., Barger, A. J., Keenan, R. C., Ting, H.-C., 2010, ApJS, 187, 251
Wirth G. D., et al. 2004, AJ, 127, 3121
Xu, C. K., Zhao, Y., Scoville, N., Capak, P., Drory, N., Gao, Y., 2012, ApJ, 747, 85