J/A+A/697/A16 Euclid ERO LBG and ERS candidate lists (Weaver+, 2025)
Euclid: Early Release Observations -
NISP-only sources and the search for luminous z = 6-8 galaxies
Weaver J.R., Taamoli S., McPartland C.J.R., Zalesky L., Allen N., Toft S.,
Sanders D.B., Atek H., Bowler R.A., Stern D., Conselice C.J., Mobasher B.,
Szapudi I., Eisenhardt P.R.M., Murphree G., Valdes I., Ito K.,
Belladitta S., Oesch P.A., Serjeant S., Mortlock D.J., Hatch N.A.,
Kluge M., Milvang-Jensen B., Rodighiero G., Banados E., Diego J.M.,
Gavazzi R., Congedo G., Shuntov M., Dole H., Rocci P.-F., Saifollahi T.,
Miluzio M., Ezziati M., Hughes A.C.N., Cuillandre J.-C., Laureijs R.,
Paltani S., Schirmer M., Stone C., Aghanim N., Altieri B., Amara A.,
Andreon S., Auricchio N., Baldi M., Balestra A., Bardelli S., Bender R.,
Bodendorf C., Bonino D., Branchini E., Brescia M., Brinchmann J., Camera S.,
Capobianco V., Carbone C., Cardone V.F., Carretero J., Casas S.,
Castander F.J., Castellano M., Cavuoti S., Cimatti A., L., Copin Y.,
Corcione L., Courbin F., Courtois H.M., Da Silva A., Degaudenzi H.,
Di Giorgio A.M., Dinis J., Douspis M., Dubath F., Dupac X., Ealet A.,
Farina M., Farrens S., Ferriol S., Fotopoulou S., Frailis M., Franceschi E.,
Franzetti P., Galeotta S., Gillard W., Gillis B., Giocoli C.,
Gomez-Alvarez P., Grazian A., Grupp F., Guzzo L., Haugan S.V.H., Hoar J.,
Hoekstra H., Holmes W., Hook I., Hormuth F., Hornstrup A., Hudelot P.,
Jahnke K., Jhabvala M., Keihanen E., Kermiche S., Kiessling A., Kitching T.,
Kubik B., Kummel M., Kunz M., Kurki-Suonio H., Lahav O., Le Mignant D.,
Ligori S., Lilje P.B., Lindholm V., Lloro I., Maino D., Maiorano E.,
Mansutti O., Marggraf O., Markovic K., Martinet N., Marulli F., Massey R.,
Masters D.C., Maurogordato S., McCracken H.J., Medinaceli E., Mei S.,
Melchior M., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mohr J.,
Moresco M., Moscardini L., Nakajima R., Nichol R.C., Niemi S.-M.,
Padilla C., Pasian F., Pedersen K., Percival W.J., Pettorino V., Pires S.,
Polenta G., Poncet M., Popa L.A., Pozzetti L., Raison F., Renzi A.,
Rhodes J., Riccio G., Romelli E., Roncarelli M., Rossetti E., Saglia R.,
Sapone D., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S.,
Sirignano C., Sirri G., Stanco L., Taylor A.N., Teplitz H.I., Tereno I.,
Toledo-Moreo R., Tutusaus I., Valenziano L., Vassallo T., Veropalumbo A.,
Wang Y., Weller J., Zucca E., Burigana C., Castignani G., Sakr Z.,
Scottez V., Viel M., Simon P., Martin-Fleitas J., Scott D.
<Astron. Astrophys. 697, A16 (2025)>
=2025A&A...697A..16W 2025A&A...697A..16W (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Extreme UV sources ; Redshifts
Keywords: catalogs - galaxies: evolution - galaxies: high-redshift
Abstract:
This paper presents a search for high redshift galaxies from the
Euclid Early Release Observations program `Magnifying Lens.' The
1.5deg2 area covered by the twin Abell lensing cluster fields is
comparable in size to the few other deep near-infrared surveys such as
COSMOS, and so provides an opportunity to significantly increase known
samples of rare UV-bright galaxies at z=6-8 (MUV←22). Beyond their
still uncertain role in reionisation, these UV-bright galaxies are
ideal laboratories from which to study galaxy formation and constrain
the bright-end of the UV luminosity function. Of the 501994 sources
detected from a combined YE, JE, and HE NISP detection image, 168 do
not have any appreciable VIS/IE flux. These objects span a range in
spectral colours, separated into two classes: 139 extremely red
sources; and 29 Lyman-break galaxy candidates. Best-fit redshifts and
spectral templates suggest the former is composed of both z>5 dusty
star-forming galaxies and z=1-3 quiescent systems. The latter is
composed of more homogeneous Lyman-break galaxies at z=6-8. In both
cases, contamination by L- and T-type dwarfs cannot be ruled out with
Euclid images alone. Additional contamination from instrumental
persistence is investigated using a novel time series analysis. This
work lays the foundation for future searches within the Euclid Deep
Fields, where thousands more z>6 Lyman-break systems and extremely red
sources will be identified.
Description:
Source lists for all 139 extremely red objects and 29 Lyman-break
galaxies are presented in two tables. Tables include source
identification numbers, coordinates, basic photometric properties, and
best-fit redshifts. For Lyman-break candidates, rest-frame UV
magnitude estimates are included. For the extremely red system
candidates, z<5 solutions are provided for particularly bimodal
redshift distributions. Full catalogs are available on zenodo:
https://zenodo.org/doi/10.5281/zenodo.11151975.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 83 139 Extremely red source candidates
tablea1.dat 90 29 Lyman-break galaxy candidates
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Id Object identifier
8- 17 F10.6 deg RAdeg Right ascension (J2000.0)
19- 28 F10.6 deg DEdeg Declination (J2000.0)
30- 34 A5 --- Field Field name
36- 40 F5.2 mag IEmagulim Upper limit of IE band (550-900nm) magnitude
42- 46 F5.2 mag YEmag Magnitude in YE band (10866.24Å)
48- 51 F4.2 mag e_YEmag Magnitude error in YE band (10866.24Å)
53- 57 F5.2 mag JEmag Magnitude in JE band (13766.64Å)
59- 62 F4.2 mag e_JEmag Magnitude error in JE band (13766.64Å)
64- 68 F5.2 mag HEmag Magnitude in HE band (17825.15Å)
70- 73 F4.2 mag e_HEmag Magnitude error in HE band (17825.15Å)
75- 78 F4.2 --- zphot Photometric redshift
80- 83 F4.2 --- zphotlt5 ?=- Photometric redshift (z<5)
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Id Object identifier
8- 17 F10.6 deg RAdeg Right ascension (J2000.0)
19- 28 F10.6 deg DEdeg Declination (J2000.0)
30- 34 A5 --- Field Field name
36- 40 F5.2 mag IEmagulim Upper limit of IE band (550-900nm) magnitude
42- 46 F5.2 mag YEmag Magnitude in YE band (10866.24Å)
48- 51 F4.2 mag e_YEmag Magnitude error in YE band (10866.24Å)
53- 57 F5.2 mag JEmag Magnitude in JE band (13766.64Å)
59- 62 F4.2 mag e_JEmag Magnitude error in JE band (13766.64Å)
64- 68 F5.2 mag HEmag Magnitude in HE band (17825.15Å)
70- 73 F4.2 mag e_HEmag Magnitude error in HE band (17825.15Å)
75- 78 F4.2 --- zphot Photometric redshift
80- 85 F6.2 mag UVrfmag UV rest frame magnitude
87- 90 F4.2 mag e_UVrfmag UV rest frame magnitude error
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Acknowledgements:
John Weaver, john.weaver.astro(at)gmail.com
(End) John Weaver [UMass, USA], Patricia Vannier [CDS] 01-Aug-2024