2017A&A...608A...4M


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.26CET01:25:05

2017A&A...608A...4M - Astronomy and Astrophysics, volume 608A, 4-4 (2017/12-1)

The MUSE Hubble Ultra Deep Field Survey. IV. Global properties of C III] emitters.

MASEDA M.V., BRINCHMANN J., FRANX M., BACON R., BOUWENS R.J., SCHMIDT K.B., BOOGAARD L.A., CONTINI T., FELTRE A., INAMI H., KOLLATSCHNY W., MARINO R.A., RICHARD J., VERHAMME A. and WISOTZKI L.

Abstract (from CDS):

The C III] λλ1907, 1909 emission doublet has been proposed as an alternative to Lyman-α in redshift confirmations of galaxies at z≥6 since it is not attenuated by the largely neutral intergalactic medium at these redshifts and is believed to be strong in the young, vigorously star-forming galaxies present at these early cosmic times. We present a statistical sample of 17 C III]-emitting galaxies beyond z∼1.5 using ∼30h deep VLT/MUSE integral field spectroscopy covering 2 square arcminutes in the Hubble Deep Field South (HDFS) and Ultra Deep Field (UDF), achieving C III] sensitivities of ∼2x10–17erg/s/cm2 in the HDFS and ∼7x10–18erg/s/cm2 in the UDF. The rest-frame equivalent widths range from 2 to 19Å. These 17 galaxies represent ∼3% of the total sample of galaxies found between 1.5≤z≤4. They also show elevated star formation rates, lower dust attenuation, and younger mass-weighted ages than the general population of galaxies at the same redshifts. Combined with deep slitless grism spectroscopy from the HST/WFC3 in the UDF, we can tie the rest-frame ultraviolet CIII] emission to rest-frame optical emission lines, namely [OIII] λ5007, finding a strong correlation between the two. Down to the flux limits that we observe (∼1x10–18erg/s/cm2 with the grism data in the UDF), all objects with a rest-frame [OIII] λλ4959, 5007 equivalent width in excess of 250Å, the so-called extreme emission line galaxies, have detections of CIII] in our MUSE data. More detailed studies of the CIII]-emitting population at these intermediate redshifts will be crucial to understand the physical conditions in galaxies at early cosmic times and to determine the utility of CIII] as a redshift tracer.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: high-redshift - intergalactic medium - galaxies: evolution - galaxies: evolution

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GOODS-MUSIC 11349 EmG 03 32 36.691 -27 46 20.99 25.3436 24.9969 24.888     ~ 14 0
2 GOODS-MUSIC 10665 G 03 32 36.820 -27 46 51.75 26.1822 26.1462 26.12     ~ 9 0
3 EIS-DEEP CDFS-2 J 1 730 EmG 03 32 37.072 -27 46 17.18 24.77 24.506 23.981 23.74 23.8429 ~ 28 0
4 GOODS-MUSIC 10917 G 03 32 37.989 -27 46 38.81 24.7695 24.7682 24.788     ~ 12 0
5 GOODS-MUSIC 11497 EmG 03 32 38.402 -27 46 15.62 25.6454 25.5274 25.62     ~ 11 0
6 UDF 7986 G 03 32 38.904 -27 46 21.23 28.3698 27.3638 27.474     ~ 8 0
7 GOODS J033238.97-274704.1 G 03 32 38.963 -27 47 03.99 27.0707 25.8470 25.68     ~ 11 0
8 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1332 0
9 ZFOURGE CDFS 17715 G 03 32 39.138 -27 47 08.18 28.2146 26.6222 26.48     ~ 10 0
10 ZFOURGE CDFS 18184 G 03 32 39.644 -27 46 53.81 26.0350 25.6358 25.54     ~ 11 0
11 GOODS-MUSIC 11109 G 03 32 39.973 -27 46 30.93 28.8765 27.0682 26.75     ~ 10 0
12 UDF 7254 EmG 03 32 40.192 -27 46 54.60 26.8449 26.6771 26.55     ~ 11 0
13 UDF 6576 G 03 32 40.644 -27 47 05.94 26.4644 26.8741 27.05     ~ 9 0
14 SB-WF 2517-0794 G 22 32 53.310 -60 34 04.50     25.48   25.41 ~ 5 0
15 [LFR2003] 245 G 22 32 54.860 -60 33 42.12 30.021 26.223 26.288   25.74 ~ 9 0
16 [LFR2003] 279 G 22 32 55.130 -60 33 35.07 29.003 28.206 27.803   25.97 ~ 6 0
17 SB-WF 2117-0979 G 22 32 55.500 -60 33 57.42     25.91   25.87 ~ 6 0
18 NAME HDF-S reg 22 32 56 -60 33.0           ~ 545 0
19 [LFR2003] 194 G 22 32 59.060 -60 33 53.72 29.045 26.673 26.663   26.19 ~ 6 0

    Equat.    Gal    SGal    Ecl

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2021.01.26-01:25:05

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