J/A+A/702/A59 M104 Globular cluster catalogue (Fahrion+, 2025)
Globular clusters in M 104:
Tracing kinematics and metallicities from the centre to the halo.
Fahrion K., Beasley M.A., Emsellem E., Gvozdenko A., Mueller O., Rejkuba M.,
Chies-Santos A.L.
<Astron. Astrophys. 702, A59 (2025)>
=2025A&A...702A..59F 2025A&A...702A..59F (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Radial velocities ; Abundances, [Fe/H] ;
Photometry ; Optical
Keywords: galaxies: individual: M104 - galaxies: star clusters: general
Abstract:
As ancient star clusters, globular clusters (GCs) are regarded as
powerful tracers of galaxy evolution and assembly. Due to their
brightness and compact sizes, GCs are employed to probe the kinematics
and stellar population properties of galaxies, from the central
regions out into the halo where the underlying stellar light becomes
too faint for spectroscopic studies. In this work, we present a
comprehensive study of the GC system of M 104 (NGC 4594, also known as
the Sombrero galaxy) based on literature spectroscopic catalogues and
newly collected data from Very Large Telescope (VLT) MUSE
integral-field spectroscopy combined with multi-object spectroscopy
from VLT FLAMES and OSIRIS at the Gran Telescopio de Canarias (GTC).
We present a new catalogue of 499 GCs with radial velocity
measurements that span from the inner disc region out to ∼70kpc (24').
In addition to velocities, we measure metallicities from the MUSE,
OSIRIS, and FLAMES spectra of 190 GCs. Together with literature
values, we collected a sample of 278 metallicities. Comparing GCs
observed with multiple instruments, we find a good agreement of
velocity and metallicity measurements. Studying GC kinematics with a
simple model confirms a decreasing velocity dispersion profile and low
rotation velocities. The blue GCs appear to be more
dispersion-dominated, while the red GCs follow the kinematics of the
stars more closely. We find a large scatter of GC metallicities with
distance from the centre and metal-rich GCs are found over all radii.
We discuss that the GC metallicity distribution with a broad
metal-poor component likely reflects the complex assembly history
of M 104.
Description:
Building on the extensive collection reported in Dowell et al.
(2014AJ....147..150D 2014AJ....147..150D, Cat. J/AJ/147/150), table D1 contains the final
catalogue of globular clusters in M104, including velocities and
metallicities from MUSE, OSIRIS, FLAMES and literature sources.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tabled1.dat 237 499 Catalogue of globular clusters in M104
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See also:
J/ApJ/658/980 : New velocities for 62 globular clusters in M104
(Bridges+, 2007)
J/MNRAS/401/1965 : Globular clusters in M104 (Harris+, 2010)
J/MNRAS/417/1823 : Sombrero galaxy globular clusters (Alves-Brito+, 2011)
J/AJ/147/150 : Velocities of globular clusters in M104 (Dowell+, 2014)
J/ApJ/939/74 : Globular clusters from CFHT/MegaCam ugi obs. of M104
(Kang+, 2022)
Byte-by-byte Description of file: tabled1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID Identifier in this catalogue
5- 15 F11.7 deg RAdeg Right ascension (J2000)
17- 27 F11.7 deg DEdeg Declination (J2000)
29- 36 F8.2 km/s vMUSE ? LOS velocity from MUSE
38- 43 F6.2 km/s e_vMUSE ? LOS velocity uncertainty from MUSE
45- 52 F8.2 km/s vOSIRIS ? LOS velocity from OSIRIS
54- 60 F7.2 km/s e_vOSIRIS ? LOS velocity uncertainty from OSIRIS
62- 69 F8.2 km/s vFLAMES ? LOS velocity from FLAMES
71- 75 F5.2 km/s e_vFLAMES ? LOS velocity uncertainty from FLAMES
77- 83 F7.1 km/s vDowell ? LOS velocity from Dowell et al.,
2014AJ....147..150D 2014AJ....147..150D, Cat. J/AJ/147/150
85- 90 F6.1 km/s e_vDowell ? LOS velocity uncertainty from Dowell et
al., 2014AJ....147..150D 2014AJ....147..150D, Cat. J/AJ/147/150
92- 96 I5 --- Dowell ? Identifier from Dowell et al.,
2014AJ....147..150D 2014AJ....147..150D, Cat. J/AJ/147/150
98-104 F7.2 --- metalMUSE ? Metallicity from MUSE
106-112 F7.2 --- e_metalMUSE ? metallicity uncertainty from MUSE
114-120 F7.2 --- metalOSIRIS ? Metallicity from OSIRIS
122-128 F7.2 --- e_metalOSIRIS ? metallicity uncertainty from OSIRIS
130-134 F5.2 --- metalFLAMES ? Metallicity from FLAMES
136-142 F7.2 --- e_metalFLAMES ? metallicity uncertainty from FLAMES
144-150 F7.2 --- metalAB ? Metallicity from Alves-Brito et al..
2011MNRAS.417.1823A 2011MNRAS.417.1823A, Cat. J/MNRAS/417/1823
152-157 F6.2 --- e_metalAB ? metallicity uncertainty from Alves-Brito
et al., 2011MNRAS.417.1823A 2011MNRAS.417.1823A,
Cat. J/MNRAS/417/1823
159-164 F6.2 mag Vmag1 ? V band mag from Harris et al.,
2010MNRAS.401.1965H 2010MNRAS.401.1965H, Cat. J/MNRAS/401/1965
166-171 F6.2 mag B-V1 ? B-V from Harris et al.,
2010MNRAS.401.1965H 2010MNRAS.401.1965H, Cat. J/MNRAS/401/1965
173-178 F6.2 mag B-R1 ? B-R from Harris et al.,
2010MNRAS.401.1965H 2010MNRAS.401.1965H, Cat. J/MNRAS/401/1965
180-182 I3 --- acs ? Identifier from Harris et al.,
2010MNRAS.401.1965H 2010MNRAS.401.1965H, Cat. J/MNRAS/401/1965
184-190 F7.3 mag Vmag2 ? V band mag. from Rhode & Zepf,
2004AJ....127..302R 2004AJ....127..302R
192-198 F7.3 mag B-V2 ? B-V from Rhode & Zepf, 2004AJ....127..302R 2004AJ....127..302R
200-206 F7.3 mag B-R2 ? B-R from Rhode & Zepf, 2004AJ....127..302R 2004AJ....127..302R
208-211 I4 --- RZ ? Identifier from Rhode & Zepf,
2004AJ....127..302R 2004AJ....127..302R,
[RZ2004] GCl NNNN in Simbad
213-218 F6.2 mag imag ? i band mag from Kang et al.,
2022ApJ...939...74K 2022ApJ...939...74K, Cat. J/ApJ/939/74
220-225 F6.2 mag g-i ? g-i from Kang et al.,
2022ApJ...939...74K 2022ApJ...939...74K, Cat. J/ApJ/939/74
227-232 F6.2 mag u-g ? u-g from Kang et al.,
2022ApJ...939...74K 2022ApJ...939...74K, Cat. J/ApJ/939/74
234-237 I4 --- Kang ? Identifier from Kang et al.,
2022ApJ...939...74K 2022ApJ...939...74K, Cat. J/ApJ/939/74
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Acknowledgements:
Katja Fahrion, katja.fahrion(at)univie.ac.at
(End) Patricia Vannier [CDS] 13-Aug-2025