The Trace of the Assembly of Massive E-S0 Galaxies at 0.8<z<1.5 in Galaxy Number Counts

Prieto, M.; Eliche-Moral, M. C.
Bibliographical reference

Multi-Object Spectroscopy in the Next Decade: Big Questions, Large Surveys, and Wide Fields. Proceedings of a conference held at Teatro Circo de Marte, Santa Cruz de La Palma, Canary Islands, Spain on 2-6 March 2015. Edited by Ian Skillen, Marc Barcells, and Scott Trager. ASP Conference Series, Vol. 507. San Francisco: Astronomical Society of the Pacific, 2016, p.287

Advertised on:
10
2016
Number of authors
2
IAC number of authors
1
Citations
0
Refereed citations
0
Description
K-band galaxy number counts (GNCs) exhibit a slope change at K˜ 17.5 mag not present in optical bands. To unveil the nature of this feature we have derived the contribution of different galaxy types to the total K-band GNCs at 0.32) and evolved passively since then cannot predict the slope change, whereas models that impose a late definitive assembly for them (at z<1.5) can reproduce it. We conclude that the slope change in total K-band GNCs is thus nothing other than a vestige of the definitive assembly of a substantial fraction (˜ 50%) of present-day massive E-S0s at 0.8