J/A+A/690/A55 NOEMA formIng Cluster survEy COSMOS field (Sillassen+, 2024)
NOEMA formIng Cluster survEy (NICE):
Characterizing eight massive galaxy groups at 1.5 < z < 4 in the COSMOS field.
Sillassen N.B., Jin S., Magdis G.E., Daddi E., Wang T., Lu S., Sun H.,
Arumugam V., Liu D., Brinch M., D'Eugenio C., Gobat R., Gomez-Guijarro C.,
Rich M., Schinnerer E., Strazzullo V., Tan Q., Valentino F., Wang Y.,
Xiao M., Zhou L., Blanquez-Sese D., Cai Z., Chen Y., Ciesla L., Dai Y.,
Delvecchio I., Elbaz D., Finoguenov A., Gao F., Gu Q., Hale C., Hao Q.,
Huang J., Jarvis M., Kalita B., Ke X., Le Bail A., Magnelli B., Shi Y.,
Vaccari M., Whittam I., Yang T., Zhang Z.
<Astron. Astrophys. 690, A55 (2024)>
=2024A&A...690A..55S 2024A&A...690A..55S (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Millimetric/submm sources ; Redshifts
Keywords: galaxies: clusters: general - galaxies: evolution -
galaxies: high-redshift - submillimeter: galaxies
Abstract:
The NOrthern Extended Millimeter Array (NOEMA) formIng Cluster survEy
(NICE) is a NOEMA large programme targeting 69 massive galaxy group
candidates at z>2 over six deep fields with a total area of 46 deg2.
Here we report the spectroscopic confirmation of eight massive galaxy
groups at redshifts 1.65≤z≤3.61 in the Cosmic Evolution Survey
(COSMOS) field. Homogeneously selected as significant overdensities of
red IRAC sources that have red Herschel colours, four groups in this
sample are confirmed by CO and [CI] line detections of multiple
sources with NOEMA 3mm observations, three are confirmed with Atacama
Large Millimeter Array (ALMA) observations, and one is confirmed by
Hα emission from Subaru/FMOS spectroscopy. Using rich ancillary
data in the far-infrared and sub-millimetre, we constructed the
integrated far- infrared spectral energy distributions for the eight
groups, obtaining a total infrared star formation rate (SFR) of
260-1300M☉/yr. We adopted six methods for estimating the dark
matter masses of the eight groups, including stellar mass to halo mass
relations, overdensity with galaxy bias, and NFW profile fitting to
radial stellar mass densities. We find that the radial stellar mass
densities of the eight groups are consistent with a NFW profile,
supporting the idea that they are collapsed structures hosted by a
single dark matter halo. The best halo mass estimates are
log(Mh/M☉)=12.8-13.7 with a general uncertainty of 0.3dex.
Based on the halo mass estimates, we derived baryonic accretion rates
(BARs) of (1-8)x103M☉/yr for this sample. Together with
massive groups in the literature, we find a quasi-linear correlation
between the integrated SFR/BAR ratio and the theoretical halo mass
limit for cold streams, Mstream/Mh, with
SFR/BAR=10(-0.46±0.22)(Mstream/Mh)(0.71±0.16) with a scatter
of 0.40dex. Furthermore, we compared the halo masses and the stellar
masses with simulations, and find that the halo masses of all
structures are consistent with those of progenitors of
Mh(z=0)>1014M☉ galaxy clusters, and that the most massive
central galaxies have stellar masses consistent with those of the
brightest cluster galaxy progenitors in the TNG300 simulation. Above
all, the results strongly suggest that these massive structures are in
the process of forming massive galaxy clusters via baryonic and dark
matter accretion.
Description:
Physical properties of confirmed and candidate member galaxies of the
NICE-COSMOS sample: HPC1001, COS-SBCX1, COS-SBCX3, COS-SBCX4,
COS-SBCX7, COS-SBC3, COS-SBC4, and COS-SBC6.
Objects:
-----------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------
150.4656 2.6359 HPC1001 = [SJM2022] HPC1001
150.3492 2.7619 COS-SBCX1
150.3113 2.4511 COS-SBCX3
150.7509 2.4132 COS-SBCX4
149.9898 1.7978 COS-SBCX7
150.7196 2.6995 COS-SBC3
150.0364 2.2177 COS-SBC4
149.7057 2.2160 COS-SBC6
-----------------------------------------
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablec1.dat 160 25 Physical properties of HPC1001 member galaxies
tablec2.dat 151 60 Physical properties of COS-SBCX1 member galaxies
tablec3.dat 151 11 Physical properties of COS-SBCX3 member galaxies
tablec4.dat 151 22 Physical properties of COS-SBCX4 member galaxies
tablec5.dat 151 36 Physical properties of COS-SBCX7 member galaxies
tablec6.dat 151 35 Physical properties of COS-SBC3 member galaxies
tablec7.dat 151 64 Physical properties of COS-SBC4 member galaxies
tablec8.dat 151 25 Physical properties of COS-SBC6 member galaxies
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Byte-by-byte Description of file: tablec1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Galaxy name
11- 17 I7 --- ID ? COSMOS2020 Classic ID
19- 36 F18.14 deg RAdeg Right ascension (J2000)
38- 55 F18.16 deg DEdeg Declination (J2000)
57- 64 F8.3 --- zsp ?=-99 Spectroscopic redshift
66- 71 F6.4 --- lpzPDF ? LePhare photometric redshift
50th percentile
73- 78 F6.4 --- e_lpzPDF ? LePhare photometric redshift
84th percentile at 68% confidence level
80- 85 F6.4 --- E_lpzPDF ? LePhare photometric redshift
16th percentile at 68% confidence level
87- 94 F8.5 [Msun] loglpMass LePhare log Mstar 50th percentile
96-103 F8.5 [Msun] E_loglpMass LePhare log Mstar 84th percentile
at 68% confidence level
105-112 F8.5 [Msun] e_loglpMass LePhare log Mstar 16th percentile
at 68% confidence level
114-121 F8.5 [Msun/yr] loglpSFR ? LePhare log SFR 50th percentile
123-130 F8.5 [Msun/yr] e_loglpSFR ? LePhare log SFR 16th percentile
at 68% confidence level
132-139 F8.5 [Msun/yr] E_loglpSFR ? LePhare log SFR 84th percentile
at 68% confidence level
141-160 F20.17 arcsec Dist Distance to group centre
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablec[2345678].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 I7 --- ID ? COSMOS2020 Classic ID
9- 26 F18.14 deg RAdeg Right ascension (J2000)
28- 45 F18.16 deg DEdeg Declination (J2000)
47- 55 F9.4 --- zsp ?=-99 Spectroscopic redshift
57- 62 F6.4 --- lpzPDF ? LePhare photometric redshift
50th percentile
64- 69 F6.4 --- e_lpzPDF ? LePhare photometric redshift
84th percentile at 68% confidence level
71- 76 F6.4 --- E_lpzPDF ? LePhare photometric redshift
16th percentile at 68% confidence level
78- 85 F8.5 [Msun] loglpMass LePhare log Mstar 50th percentile
87- 94 F8.5 [Msun] E_loglpMass LePhare log Mstar 84th percentile
at 68% confidence level
96-103 F8.5 [Msun] e_loglpMass LePhare log Mstar 16th percentile
at 68% confidence level
105-112 F8.5 [Msun/yr] loglpSFR ? LePhare log SFR 50th percentile
115-121 F7.5 [Msun/yr] e_loglpSFR ? LePhare log SFR 16th percentile
at 68% confidence level
124-130 F7.5 [Msun/yr] E_loglpSFR ? LePhare log SFR 84th percentile
at 68% confidence level
132-151 F20.17 arcsec Dist Distance to group centre
--------------------------------------------------------------------------------
Acknowledgements:
Nikolaj B. Sillassen, nbsi(at)space.dtu.dk
(End) Patricia Vannier [CDS] 05-Jul-2024