J/MNRAS/490/1666 Spectroscopic census of the Fornax cluster (Maddox+, 2019)
A spectroscopic census of the Fornax cluster and beyond:
preparing for next generation surveys.
Maddox N., Serra P., Venhola A., Peletier R., Loubser I., Iodice E.
<Mon. Not. R. Astron. Soc., 490, 1666-1677 (2019)>
=2019MNRAS.490.1666M 2019MNRAS.490.1666M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Galaxies, optical ; Redshifts
Keywords: catalogues - surveys - galaxies: clusters: general -
galaxies: distances and redshifts - galaxies: general
Abstract:
The Fornax cluster is the nearest large cluster in the southern sky,
and is currently experiencing active assembly of mass. It is thus the
target of a number of ongoing observing campaigns at optical,
near-infrared, and radio wavelengths, using state-of-the-art
facilities in the Southern hemisphere. Spectroscopic redshifts are
essential not only for determining cluster membership, but also
kinematics within the cluster and identifying substructures. We
present a compilation of all available major spectroscopic campaigns
undertaken within the Fornax region, including new and previously
unpublished spectroscopy. This provides not only a comprehensive
census of Fornax cluster membership as a resource for the many ongoing
studies of this dynamic system, but also probes the large-scale
structure in the background volume.
Description:
The aim of this work is to collect all available redshifts within the
Fornax cluster sky area, in order to determine cluster membership as
well as background volume large-scale structure.
While most observing campaigns in this area of the sky understandably
focus on cluster objects, the MIGHTEE-HI survey is specifically
surveying the volume behind Fornax. Therefore, a census of background
galaxies to moderate redshifts is one of the aims of these
observations. The observations with the most comprehensive coverage of
the Fornax background volume is from Drinkwater et al.
(2000A&A...355..900D 2000A&A...355..900D), which covers ∼9deg2. We designed our
observations to be complementary to these, both in coverage and in
depth.
We obtained three nights of observations in mixed conditions with the
AAOmega multi-object spectrograph (Saunders et al.
2004SPIE.5492..389S 2004SPIE.5492..389S) and the Two-degree Field (2dF; Lewis et al.
2002MNRAS.333..279L 2002MNRAS.333..279L) fibre positioner on the 3.9-m Anglo-Australian
Telescope (AAT) on 2017 October 24-26. We employed the 580V and 385R
gratings in the blue and red arms, respectively, with central
dispersion 1.03 and 1.56Å/pix, which results in velocity resolution
of ∼220km/s. The AAOmega spectrograph provides continuous wavelength
coverage from 3800-8800Å. The spectra were reduced using 2DFDR
(Croom, Saunders & Heald 2004AAONw.106...12C 2004AAONw.106...12C; AAO Software Team
2015CSE....17e..27S 2015CSE....17e..27S) and classified with the Manual and Automatic
Redshifting Software MARZ (Hinton et al. 2016A&C....15...61H 2016A&C....15...61H).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 73 16856 The spectroscopic catalogue
table3.dat 41 86 Objects at z>0.1 also detected in NVSS
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- ID Internal object identifier (FNNNNN)
8- 16 F9.6 deg RAdeg Right ascension (J2000)
18- 27 F10.6 deg DEdeg Declination (J2000)
29- 42 F14.6 km/s cz Recession velocity
44- 55 F12.6 km/s e_cz ?=-99 Error on cz
57- 58 I2 --- Source Reference (1)
60- 73 A14 --- Type Type as given in each work (2)
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Note (1): References as follows:
1 = This work, AAOmega/2dF (1553/16856)
2 = Drinkwater et al. (2000A&A...355..900D 2000A&A...355..900D), 2dF (12071/16856)
3 = Firth, Drinkwater & Karick (2008MNRAS.389.1539F 2008MNRAS.389.1539F), AAOmega/2dF
(1608/16856)
4 = Gregg et al. (2009AJ....137..498G 2009AJ....137..498G, Cat. J/AJ/137/498), VLT/FLAMES
(25/16856)
5 = Drinkwater et al. (2001MNRAS.326.1076D 2001MNRAS.326.1076D, Cat. J/MNRAS/382/1342),
FLAIR-II (346/16856)
6 = Firth et al. (2007MNRAS.382.1342F 2007MNRAS.382.1342F, Cat. J/MNRAS/382/1342),
FLAMES (46/16856)
7 = 2MASS Redshift Survey 2MRS (Huchra et al. 2012ApJS..199...26H 2012ApJS..199...26H,
Cat. J/ApJS/199/26) (276/16856)
8 = Hilker et al. (1999A&AS..134...59H 1999A&AS..134...59H, Cat. J/A+AS/134/59,
1999A&AS..134...75H 1999A&AS..134...75H, Cat. J/A+AS/134/75), du Pont Telescope (29/16856)
9 = Ferguson (1989AJ.....98..367F 1989AJ.....98..367F, Cat. VII/180) (57/16856)
10 = Bergond et al. (2007A&A...464L..21B 2007A&A...464L..21B, Cat. J/A+A/464/L21), FLAMES
(138/16856)
11 = Mieske et al. (2002A&A...383..823M 2002A&A...383..823M, Cat. J/A+A/383/823,
2004A&A...418..445M 2004A&A...418..445M, Cat. J/A+A/418/445), du Pont Telescope (102/16856)
12 = Schuberth et al. (2010A&A...513A..52S 2010A&A...513A..52S, Cat. J/A+A/513/A52), FORS2/GMOS
(605/16856)
Note (2): The four general populations of objects within the table are Galactic
stars, Fornax galaxies, Fornax GCs, and background objects, including
galaxies and quasars. In particular, we included Galactic stars in
the table to enable the reader to choose the velocity limits of the
Fornax cluster themselves.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- ID Internal object identifier (FNNNNN)
8- 16 F9.6 deg RAdeg Right ascension (J2000)
18- 27 F10.6 deg DEdeg Declination (J2000)
29- 33 F5.3 --- z Redshift
35- 41 F7.3 mJy/beam Flux Peak flux from NVSS (Condon et al.
1998AJ....115.1693C 1998AJ....115.1693C, Cat. VIII/65)
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History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 26-Jan-2023