J/MNRAS/518/1378 ALMACAL IX calibrators for DSFGs/SMGs sources (Chen+, 2023)
ALMACAL IX Multiband ALMA survey for dusty star-forming galaxies and the
resolved fractions of the cosmic infrared background.
Chen J., Ivison R.J., Zwaan M.A., Smail I., Klitsch A., Peroux C.,
Popping G., Biggs A.D., Szakacs R., Hamanowicz A., Lagos C.
<Mon. Not. R. Astron. Soc. 518, 1378 (2023)>
=2023MNRAS.518.1378C 2023MNRAS.518.1378C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies ; Photometry, millimetric/submm ; Radio sources ; QSOs ;
Positional data
Keywords: galaxies: high-redshift - cosmic background radiation -
submillimetre: galaxies
Abstract:
Wide, deep, blind continuum surveys at submillimetre/millimetre
(submm/mm) wavelengths are required to provide a full inventory of the
dusty, distant Universe. However, conducting such surveys to the
necessary depth, with sub-arcsec angular resolution, is prohibitively
time-consuming, even for the most advanced submm/mm telescopes. Here,
we report the most recent results from the ALMACAL project, which
exploits the 'free' calibration data from the Atacama Large
Millimetre/submillimetre Array (ALMA) to map the lines of sight
towards and beyond the ALMA calibrators. ALMACAL has now covered 1001
calibrators, with a total sky coverage around 0.3 deg2, distributed
across the sky accessible from the Atacama desert, and has accumulated
more than 1000 h of integration. The depth reached by combining
multiple visits to each field makes ALMACAL capable of searching for
faint, dusty, star-forming galaxies (DSFGs), with detections at
multiple frequencies to constrain the emission mechanism. Based on the
most up- to-date ALMACAL data base, we report the detection of 186
DSFGs with flux densities down to S870µm ∼ 0.2 mJy, comparable
with existing ALMA large surveys but less susceptible to cosmic
variance. We report the number counts at five wavelengths between 870
µm and 3 mm, in ALMA bands 3, 4, 5, 6, and 7, providing a benchmark
for models of galaxy formation and evolution. By integrating the
observed number counts and the best-fitting functions, we also present
the resolved fraction of the cosmic infrared background (CIB) and the
CIB spectral shape. Combining existing surveys, ALMA has currently
resolved about half of the CIB in the submm/mm regime.
Description:
In total, we have detected 371 sources among 263 fields, including 186
secure DSFGs with multiband confirmations of their purity and spectral
indices. The largest number of detections is in ALMA band 6, where we
have detected 228 sources, including 132 DSFGs. As we can see here,
the number of detections provided by ALMACAL is competitive with
dedicated ALMA cosmological surveys, offering a complementary way to
refine the counts. Results as positions, ALMA fluxes in band 3, 4, 5,
6 and 7, source types and radial distance are presented in
table1-14.dat.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 75 45 The detections in ALMA band 3
table2.dat 75 19 The detections in ALMA band 3 continued
table3.dat 75 54 The detections in ALMA band 4
table4.dat 75 9 The detections in ALMA band 4 continued
table5.dat 75 21 The detections in ALMA band 5
table6.dat 75 45 The detections in ALMA band 6
table7.dat 75 45 The detections in ALMA band 6 continued
table8.dat 75 45 The detections in ALMA band 6 continued part 2
table9.dat 75 45 The detections in ALMA band 6 continued part 3
table10.dat 75 45 The detections in ALMA band 6 continued part 4
table11.dat 75 3 The detections in ALMA band 6 continued part 5
table12.dat 75 45 The detections in ALMA band 7
table13.dat 75 45 The detections in ALMA band 7 continued
table14.dat 75 40 The detections in ALMA band 7 continued part 2
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See also:
J/A+A/643/A2 : ALPINE DR1 merged catalog (Bethermin+, 2020)
J/A+A/608/A15 : ALMA survey of submm galaxies in COSMOS field
(Brisbin+, 2017)
J/ApJ/865/106 : SUPER GOODS. III. ALMA data for SCUBA-2 sources
(Cowie+, 2018)
J/ApJ/839/58 : ALMA submm galaxies multi-wavelength data (Simpson+, 2017)
J/ApJ/820/82 : S2CLS: multiwavelength counterparts to SMGs (Chen+, 2016)
J/ApJ/768/91 : ALMA observations of LESS submm galaxies (Hodge+, 2013)
J/ApJ/707/1201 : LABOCA ECDFS Submillimeter Survey (LESS) (Weiss+, 2009)
J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)
J/MNRAS/495/3409 : SCUBA-2-COSMOS field brightest sub-mm sources
(Simpson+, 2020)
J/MNRAS/494/3828 : ALMA survey of the SCUBA-2 CLS UDS field
(Dudzeviciute+, 2020)
J/MNRAS/487/4648 : ALMA survey of the SCUBA-2 UKIDSS/UDS field (Stach+, 2019)
J/MNRAS/478/1512 : ALMA calibrator continuum observations catalog
(Bonato+, 2018)
J/MNRAS/465/1789 : SCUBA-2 Cosmology Legacy Survey (Geach+, 2017)
J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)
J/MNRAS/372/1621 : SCUBA Half-Degree Extragalactic Survey. II (Coppin+, 2006)
J/ApJS/244/40 : A3COSMOS. I. ALMA continuum photometry catalogs (Liu+, 2019)
J/ApJS/222/1 : Faint ALMA 1.2mm sources down to ∼0.02mJy (Fujimoto+, 2016)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
Byte-by-byte Description of file: *.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Field Name of the field (Field)
12 I1 --- Index Index number of sources found in the same
field (index)
14 A1 --- Type Source types (type) (1)
16- 24 F9.5 deg RAdeg Right ascension (J2000) (RA)
26- 34 F9.5 deg DEdeg Declination (J2000) (Dec)
36- 40 F5.2 mJy F Aperture flux in the given ALMA band
(Aperture_flux)
42- 46 F5.1 --- SNR Aperture SNR (Aperture_SNR)
48- 52 F5.2 mJy Fg Gaussian flux in the given ALMA band
(Gaussian_flux)
54- 57 F4.1 --- SNRg Gaussian SNR (Gaussian_SNR)
59- 63 F5.2 mJy Peak Peak flux density in the given ALMA band
(Peak_flux)
65- 69 F5.1 --- PeakSNR SNR of the peak source in the given ALMA band
(Peak_SNR)
71- 75 F5.2 arcsec D Radial distance to the field centre
(Radial_distance)
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Note (1): As explained in section 3.8 Source classification, sources types are
as follows:
0 = Unclassified sources lacking radio coverage
1 = Submm-selected galaxies (SMG) as dusty star-forming
galaxies (DSFGs)
2 = Synchrotron emission sources
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History:
From electronic version of the journal
References:
Oteo et al., Paper I 2016ApJ...822...36O 2016ApJ...822...36O
Oteo et al., Paper II 2017ApJ...837..182O 2017ApJ...837..182O
Klitsch et al., Paper III 2018MNRAS.475..492K 2018MNRAS.475..492K
Bonato et al., Paper IV 2018MNRAS.478.1512B 2018MNRAS.478.1512B, Cat. J/MNRAS/478/1512
Klitsch et al., Paper V 2019MNRAS.482L..65K 2019MNRAS.482L..65K
Klitsch et al., Paper VI 2019MNRAS.490.1220K 2019MNRAS.490.1220K
Klitsch et al., Paper VII 2020MNRAS.495.2332K 2020MNRAS.495.2332K
Hamanowicz et al., Paper VIII 2023MNRAS.519...34H 2023MNRAS.519...34H
Klitsch et al., Paper X 2023MNRAS.523L..46K 2023MNRAS.523L..46K
Chen et al., Paper XI 2023A&A...675L..10C 2023A&A...675L..10C
Bollo et al., Paper XII 2024A&A...690A.258B 2024A&A...690A.258B
Bollo et al., Paper XIII 2025A&A...695A.163B 2025A&A...695A.163B, Cat. J/A+A/695/A163
Weng et al., Paper XIV 2025MNRAS.539.1977W 2025MNRAS.539.1977W
Bonato et al., Paper XV 2025arXiv251122574B 2025arXiv251122574B
(End) Luc Trabelsi [CDS] 10-Dec-2025