J/ApJ/911/78 SILVERRUSH. X. Confirmed LAE galaxies & AGN from HSC (Ono+, 2021)
SILVERRUSH X: machine learning-aided selection of 9318 LAEs at z=2.2, 3.3, 4.9,
5.7, 6.6, and 7.0 from the HSC SSP and CHORUS survey data.
Ono Y., Itoh R., Shibuya T., Ouchi M., Harikane Y., Yamanaka S., Inoue A.K.,
Amagasa T., Miura D., Okura M., Shimasaku K., Iwata I., Taniguchi Y.,
Fujimoto S., Iye M., Jaelani A.T., Kashikawa N., Kikuchihara S., Kikuta S.,
Kobayashi M.A.R., Kusakabe H., Lee C.-H., Liang Y., Matsuoka Y., Momose R.,
Nagao T., Nakajima K., Tadaki K.-I.
<Astrophys. J., 911, 78 (2021)>
=2021ApJ...911...78O 2021ApJ...911...78O
ADC_Keywords: Active gal. nuclei; Galaxies, optical; Redshifts; Surveys
Keywords: Lyman-alpha galaxies ; High-redshift galaxies ;
Convolutional neural networks ; Galaxy evolution ; Galaxy formation
Abstract:
We present a new catalog of 9318 Lyα emitter (LAE) candidates at
z=2.2, 3.3, 4.9, 5.7, 6.6, and 7.0 that are photometrically selected
by the Systematic Identification of LAEs for Visible Exploration and
Reionization Research Using Subaru HSC (SILVERRUSH) program with a
machine learning technique from large area (up to 25.0deg2) imaging
data with six narrowband filters taken by the Subaru Strategic Program
with Hyper Suprime-Cam and a Subaru intensive program, Cosmic HydrOgen
Reionization Unveiled with Subaru. We construct a convolutional neural
network that distinguishes between real LAEs and contaminants with a
completeness of 94% and a contamination rate of 1%, enabling us to
efficiently remove contaminants from the photometrically selected LAE
candidates. We confirm that our LAE catalogs include 177 LAEs that
have been spectroscopically identified in our SILVERRUSH programs and
previous studies, ensuring the validity of our machine learning
selection. In addition, we find that the object-matching rates between
our LAE catalogs and our previous results are ∼80%-100% at bright NB
magnitudes of ≲24mag. We also confirm that the surface number
densities of our LAE candidates are consistent with previous results.
Description:
We use data products of the on-going Hyper Suprime-Cam Subaru
Strategic Program (HSC SSP) survey that were obtained between
2014-March and 2018-January (Aihara+ 2019PASJ...71..114A 2019PASJ...71..114A).
Specifically, we use the internal data release of S18A, which is
basically identical to the version of Public Data Release 2.
In addition, we use HSC NB data taken by the Cosmic HydrOgen
Reionization Unveiled with Subaru (CHORUS) program between 2017
January and 2018 March (Inoue+ 2020PASJ...72..101I 2020PASJ...72..101I).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 107 177 Spectroscopically confirmed galaxies and AGNs
in our Lyα emitter (LAE) samples
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See also:
VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)
II/371 : The Dark Energy Survey (DES): Data Release 2 (Abbott+, 2021)
J/ApJS/176/301 : Subaru/XMM-Newton deep survey IV. (SXDS) (Ouchi+, 2008)
J/ApJS/184/218 : The zCOSMOS 10k-bright spectroscopic sample (Lilly+, 2009)
J/ApJ/760/128 : Lyα from 4<z<6 sources in COSMOS (Mallery+, 2012)
J/ApJ/755/169 : 3<z<5 quasar luminosity function in COSMOS (Masters+, 2012)
J/A+A/559/A14 : VIMOS VLT Deep Survey final data release (Le Fevre+, 2013)
J/ApJ/768/105 : z∼5 QSO LF from SDSS Stripe 82 (McGreer+, 2013)
J/ApJS/227/11 : PS1 z>5.6 quasars follow-up (Banados+, 2016)
J/ApJS/225/27 : 3D-HST Survey: grism sp. master catalog (Momcheva+, 2016)
J/ApJ/826/114 : z∼3-6 protoclusters in CFHTLS deep fields (Toshikawa+, 2016)
J/ApJ/819/24 : z>4.5 QSOs with SDSS and WISE. I. Opt. spectra (Wang+, 2016)
J/A+A/608/A8 : MUSE Hubble Ultra Deep Field Survey. VIII (Leclercq+, 2017)
J/ApJ/841/111 : C3R2 survey: high-confidence z from DR1 (Masters+, 2017)
J/A+A/600/A110 : VIMOS Ultra Deep Survey (VUDS) DR1 (Tasca+, 2017)
J/ApJS/228/24 : GALAH semi-automated classification scheme (Traven+, 2017)
J/MNRAS/478/4513 : GALAH Survey DR2 (Buder+, 2018)
J/MNRAS/476/3661 : Morphology of SDSS galaxies (Dominguez+, 2018)
J/ApJS/237/31 : CLAMATO DR1: 3D Lyα forest tomography (Lee+, 2018)
J/A+A/619/A136 : VLT/X-SHOOTER spectrum of COLA1 (Matthee+, 2018)
J/PASJ/70/S10 : GOLDRUSH I. UV magnitudes (Ono+, 2018)
J/A+A/611/A97 : Phot. quasar candidates in Stripe 82 (Pasquet-Itam+, 2018)
J/MNRAS/477/2817 : Luminous Lyα emitters at z∼2-3 (Sobral+, 2018)
J/MNRAS/483/3060 : Candidate massive galaxies at z∼4 in DES (Guarnieri+, 2019)
J/ApJS/243/17 : Strong DES lens cand. from neural networks (Jacobs+, 2019)
J/ApJ/877/81 : The C3R2 survey: DR2 new sp. redshifts (Masters+, 2019)
J/A+A/644/A163 : Pan-STARRS lens cand. from neural networks (Canameras+ 2020)
J/PASJ/72/89 : Hyper Suprime-Cam transients classif. (Takahashi+, 2020)
J/ApJ/909/27 : Strong gravitational lenses in DESI Surveys (Huang+, 2021)
J/MNRAS/500/4849 : GALAH emission-line stars (Cotar+, 2021)
http://hsc.mtk.nao.ac.jp/ssp/data-release/ : HSC SSP data release webpage
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [HSC]
5- 18 A14 --- HSC HSC identifier (JHHMMSS+DDMMSS);
in Simbad
20- 21 I2 h RAh Hour of right ascension (J2000)
23- 24 I2 min RAm Minute of right ascension (J2000)
26- 30 F5.2 s RAs Second of right ascension (J2000)
32 A1 --- DE- Sign of declination (J2000)
33- 34 I2 deg DEd Degree of declination (J2000)
36- 37 I2 arcmin DEm Arcminute of declination (J2000)
39- 43 F5.2 arcsec DEs Arcsecond of declination (J2000)
45- 49 F5.3 --- zsp [2.14/7] Spectroscopic redshift
51- 54 F4.1 mag gmag [20/33.7]?=99 g-band magnitude with
20 diameter circular aperture
56- 59 F4.1 mag rmag [20/32.7]?=99 r-band magnitude with
20 diameter circular aperture
61- 64 F4.1 mag imag [20/30.5]?=99 i-band magnitude with
20 diameter circular aperture
66- 69 F4.1 mag zmag [19.8/30]?=99 z-band magnitude with
20 diameter circular aperture
71- 74 F4.1 mag ymag [19.9/29.3]?=99 y band magnitude with
20 diameter circular aperture
76- 79 F4.1 mag mag [19.1/25.6] Apparent total NB magnitude
(See Figure 1 for the NB filters)
81- 85 A5 --- Sample The LAE sample in which the source is selected
87- 94 A8 --- Field Survey field
96 I1 --- Flag [1/2] Galaxy/AGN flag (1=galaxy; 2=AGN)
98- 107 A10 --- Ref Reference (1)
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Note (1): Reference for spectroscopic redshift as follows:
O08 = Ouchi et al. (2008ApJS..176..301O 2008ApJS..176..301O)
O10 = Ouchi et al. (2010ApJ...723..869O 2010ApJ...723..869O)
Mas12 = Masters et al. (2012, J/ApJ/755/169)
M12 = Mallery et al. (2012, J/ApJ/760/128)
S14 = Shibuya et al. (2014ApJ...788...74S 2014ApJ...788...74S)
S15 = Sobral et al. (2015ApJ...808..139S 2015ApJ...808..139S)
H16 = Hu et al. (2016ApJ...825L...7H 2016ApJ...825L...7H)
H17 = Hu et al. (2017ApJ...845L..16H 2017ApJ...845L..16H)
S18 = Shibuya et al. (2018PASJ...70S..15S 2018PASJ...70S..15S)
H19 = Harikane et al. (2019ApJ...883..142H 2019ApJ...883..142H)
Z20 = Zhang et al. (2020ApJ...891..177Z 2020ApJ...891..177Z)
L20 = Lyke et al. (2020, VII/289)
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History:
From electronic version of the journal
References:
Ouchi et al. Paper I. 2018PASJ...70S..13O 2018PASJ...70S..13O
Shibuya et al. Paper II. 2018PASJ...70S..14S 2018PASJ...70S..14S
Shibuya et al. Paper III. 2018PASJ...70S..15S 2018PASJ...70S..15S
Kono et al. Paper IV. 2018PASJ...70S..16K 2018PASJ...70S..16K
Harikane et al. Paper V. 2018ApJ...859...84H 2018ApJ...859...84H
Inoue et al. Paper VI. 2018PASJ...70...55I 2018PASJ...70...55I
Higuchi et al. Paper VII. 2019ApJ...879...28H 2019ApJ...879...28H
Harikane et al. Paper VIII. 2019ApJ...883..142H 2019ApJ...883..142H
Kakuma et al. Paper IX. 2021ApJ...916...22K 2021ApJ...916...22K
Ono et al. Paper X. 2021ApJ...911...78O 2021ApJ...911...78O This catalog
Goto et al. Paper XI. 2021ApJ...923..229G 2021ApJ...923..229G
Kikuchihara et al. Paper XII. 2022ApJ...931...97K 2022ApJ...931...97K
(End) Emmanuelle Perret [CDS] 11-Oct-2022