J/ApJS/272/22 Galaxies with redshifts in the vicinity of A426 (Kang+, 2024)
A deep redshift survey of the Perseus cluster (A426): spatial distribution and
kinematics of galaxies.
Kang W., Hwang Ho S., Song H., Park C., Hwang N., Park B.-G.
<Astrophys. J. Suppl. Ser., 272, 22 (2024)>
=2024ApJS..272...22K 2024ApJS..272...22K
ADC_Keywords: Clusters, galaxy; Spectra, optical; Redshifts; Photometry, SDSS
Keywords: Intracluster medium ; Perseus Cluster ; Redshift surveys ;
Galaxy clusters ; Catalogs
Abstract:
We study the global kinematics of the Perseus galaxy cluster (A426) at
redshift z=0.017 using a large sample of galaxies from our new
MMT/Hectospec spectroscopic observation for this cluster. The sample
includes 1447 galaxies with measured redshifts within 60' from the
cluster center (1148 from this MMT/Hectospec program and 299 from the
literature). The resulting spectroscopic completeness is 67% at r-band
apparent magnitude rPetro,0≤18.0 within 60' from the cluster
center. To identify cluster member galaxies in this sample, we develop
a new open-source Python package, CausticSNUpy. This code implements
the algorithm of the caustic technique and yields 418 member galaxies
within 60' of the cluster. We study the cluster using this sample of
member galaxies. The cluster shows no significant signal of global
rotation. A statistical test shows that the cluster does not have a
noticeable substructure within 30'. We find two central regions where
the X-ray-emitting intracluster medium and galaxies show significant
velocity differences (>7σ). On a large scale, however, the
overall morphology and kinematics between the intracluster medium and
galaxies agree well. Our results suggest that the Perseus cluster is a
relaxed system and has not experienced a recent merger.
Description:
We observed 1283 galaxies in the central region of the Perseus cluster
with Hectospec on the MMT 6.5m telescope. We observed a total of five
fields with MMT/Hectospec, on 2014-Nov-19 and 2021-Dec-07,08,09,
covering a region of approximately 1° in radius (Figure 2).
We also incorporated redshift data from the literature. See Table 2.
Objects:
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RA (ICRS) DE Designation(s)
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03 19 47.2 +41 30 47 A426 = ACO 426
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 77 2160 Catalog of objects with redshift measured within
60' from the Perseus cluster center
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See also:
III/286 : APOGEE-2 DR17 final allStar catalog (Abdurro'uf+, 2022)
VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)
VIII/77 : HI spectral properties of galaxies (Springob+, 2005)
J/A+AS/139/141 : Galaxies in the Perseus Cluster (Brunzendorf+, 1999)
J/PASP/111/438 : Updated Zwicky catalog (UZC) (Falco+, 1999)
J/ApJS/121/287 : The CfA2S catalog (Huchra+, 1999)
J/MNRAS/313/469 : Streaming motions of galaxy clusters. I. (Smith+, 2000)
J/MNRAS/327/265 : SMAC. III. Fundamental Plane catalog (Hudson+, 2001)
J/ApJS/134/355 : Radio galaxies in 18 nearby Abell clusters (Miller+, 2001)
J/ApJ/767/15 : Hectospec Cluster Survey (HeCS) (Rines+, 2013)
J/ApJ/783/52 : Redshifts in the field of A383 (Geller+, 2014)
J/ApJS/213/35 : SHELS: complete galaxy z survey for R≤20.6 (Geller+, 2014)
J/ApJ/797/106 : Redshifts in nine galaxy cluster fields (Hwang+, 2014)
J/ApJS/218/10 : HET Massive Galaxy Survey (HETMGS) (van den Bosch+, 2015)
J/ApJS/224/11 : SHELS: redshift survey of the F1 DLS field (Geller+, 2016)
J/MNRAS/465/2616 : Galaxy cluster's rotation (Manolopoulou+, 2017)
J/ApJ/842/88 : A redshift survey of A2199 central region (Song+, 2017)
J/AJ/156/224 : Gemini/HST GCP: galaxies in 4 clusters (Jorgensen+, 2018)
J/ApJ/869/124 : Redshift survey of the galaxy cluster A2107 (Song+, 2018)
J/ApJ/872/134 : A uniformly selected, all-sky, opt. AGN catalog (Zaw+, 2019)
J/A+A/640/A30 : Galaxies in the Perseus cluster field (Meusinger+, 2020)
J/A+A/633/A42 : Calibration list (Sanders+, 2020)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/2161] Sequence Number
6- 24 I19 --- objID objID value in the SDSS-DR17 or DR7 catalog (1)
26- 34 F9.6 deg RAdeg [48.6/51.3] Right ascension (J2000)
36- 44 F9.6 deg DEdeg [40.5/42.5] Declination (J2000)
46- 51 F6.3 mag rmag [11.4/20.8] Extinction corrected r-band
Petrosian magnitude
53- 53 I1 --- PS [0/1] Flag for point source (1=point source;
0=extended source)
55- 63 F9.6 --- z [-0.0014/2.82] Redshift
65- 72 F8.6 --- e_z [4e-06/7.4] Uncertainty in z (2)
74- 75 I2 --- r_z [1/18] Source of z (3)
77- 77 I1 --- Mm [0/1] Flag for cluster membership (4)
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Note (1): ObjIDs of objects not found in DR17 are DR7 ObjIDs.
Note (2): If redshift errors of galaxies from NED are not available,
we set them to 0.0001.
Note (3): Reference as follows:
1 = This study (MMT/Hectospec observations; 1151 occurrences)
2 = SDSS (989 occurrences)
3 = Bilicki et al. (2014ApJS..210....9B 2014ApJS..210....9B)
4 = van den Bosch et al. (2015, J/ApJS/218/10)
5 = Brunzendorf & Meusinger (1999, J/A+AS/139/141)
6 = Falco et al. (1999, J/PASP/111/438)
7 = Gandhi et al. (2004MNRAS.348..529G 2004MNRAS.348..529G)
8 = Huchra et al. (1999, J/ApJS/121/287)
9 = Jorgensen et al. (2018, J/AJ/156/224)
10 = Miller & Owen (2001, J/ApJS/134/355)
11 = Paturel et al. 2003A&A...412...57P 2003A&A...412...57P (Hyperleda; Cat. VII/238)
12 = Penny & Conselice (2008MNRAS.383..247P 2008MNRAS.383..247P)
13 = Penny et al. (2014MNRAS.443.3381P 2014MNRAS.443.3381P)
14 = Poulain et al. (1992A&AS...95..129P 1992A&AS...95..129P)
15 = Smith et al. (2000, J/MNRAS/313/469)
16 = Springob et al. 2005ApJS..160..149S 2005ApJS..160..149S (Cat. VIII/77)
17 = Zaw et al. (2019, J/ApJ/872/134)
18 = Meusinger et al. (2020, J/A+A/640/A30)
Note (4): Flag as follows:
0 = Non-member
1 = Perseus cluster member (418 occurences)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 13-Aug-2024