Luminosity Functions in the CLASH-VLT Cluster MACS J1206.2-0847: The Importance of Tidal Interactions
Date Issued
2016
Author(s)
•
Annunziatella, M.
•
•
•
Rosati, P.
•
Balestra, I.
•
•
Girardi, M.
•
Gobat, R.
•
Grillo, C.
•
Lombardi, M.
•
Abstract
We present the optical luminosity functions (LFs) of galaxies for the CLASH-VLT cluster MACS J1206.2-0847 at z = 0. 439, based on HST and SUBARU data, including ∼ 600 spectroscopically confirmed member galaxies. The LFs on the wide SUBARU FoV are well described by a single Schechter function down to M ∼ M∗+3, whereas this fit is poor for HST data, due to a faint-end upturn visible down M ∼ M∗+7, suggesting a bimodal behaviour. We also investigate the effect of local environment by deriving the LFs in four different regions, according to the distance from the centre, finding an increase in the faint-end slope going from the core to the outer rings. Our results confirm and extend our previous findings on the analysis of mass functions, which showed that the galaxies with stellar mass below 1010. 5 M☉ have been significantly affected by tidal interaction effects, thus contributing to the intra cluster light (ICL).
Coverage
The Universe of Digital Sky Surveys: a Meeting to Honour the 70th Birthday of Massimo Capaccioli
All editors
Napolitano, Nicola R.; Longo, Giuseppe; Marconi, Marcella; Paolillo, Maurizio; Iodice, Enrichetta
Volume
42
Start page
225
Conferenece
The Universe of Digital Sky Surveys: a Meeting to Honour the 70th Birthday of Massimo Capaccioli
Conferenece place
Napoli, Italy
Conferenece date
25-28 November, 2014
Issn Identifier
1570-6591
Ads BibCode
2016ASSP...42..225M
Rights
open.access
File(s)![Thumbnail Image]()
![Thumbnail Image]()
Loading...
Name
1510.08097.pdf
Description
postprint
Size
104.77 KB
Format
Adobe PDF
Checksum (MD5)
79a216375282186622879d6394423e05
Loading...
Name
Mercurio2016_Chapter_LuminosityFunctions.pdf
Description
[Administrators only]
Size
184.32 KB
Format
Adobe PDF
Checksum (MD5)
9ef9ab1eab75b0fe961dad830ace8ec5