Galaxies with good spectroscopic redshifts

DOI

The Complete Calibration of the Color-Redshift Relation survey (C3R2) is a spectroscopic program designed to empirically calibrate the galaxy color-redshift relation to the Euclid depth (I_E_=24.5), a key ingredient for the success of Stage IV dark energy projects based on weak lensing cosmology. A spectroscopic calibration sample that is as representative as possible of the galaxies in the Euclid weak lensing sample is being collected, selecting galaxies from a self-organizing map (SOM) representation of the galaxy color space. Here, we present the results of a near-infrared H- and K-band spectroscopic campaign carried out using the LUCI instruments at the LBT. For a total of 251 galaxies, we present new highly reliable redshifts in the 1.3<=z<=1.7 and 2<=z<=2.7 ranges. The newly-determined redshifts populate 49 SOM cells that previously contained no spectroscopic measurements and almost twice the occupation numbers of an additional 153 SOM cells. A final optical ground-based observational effort is needed to calibrate the missing cells, in particular in the redshift range 1.7<=z<=2.7, which lack spectroscopic calibration. In the end, Euclid itself will deliver telluric-free near-IR spectra that can complete the calibration.

Cone search capability for table J/A+A/664/A196/tableb1 (galaxies with good spectroscopic redshifts)

Identifier
DOI http://doi.org/10.26093/cds/vizier.36640196
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/664/A196
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A196
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A196
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/664/A196
Provenance
Creator Euclid Collaboration; Saglia R.; De Nicola S.; Fabricius M.; Guglielmo V.,Snigula J.; Zoller R.; Bender R.; Heidt J.; Masters D.; Stern D.,Paltani S.; Amara A.; Auricchio N.; Baldi M.; Bodendorf C.; Bonino D.,Branchini E.; Brescia M.; Brinchmann J.; Camera S.; Capobianco V.,Carbone C.; Carretero J.; Castellano M.; Cavuoti S.; Cledassou R.,Congedo G.; Conselice C.J.; Conversi L.; Copin Y.; Corcione L.; Courbin F.,Cropper M.; Da Silva A.; Degaudenzi H.; Douspis M.; Dubath F.,Duncan C.A.J.; Dupac X.; Dusini S.; Farrens S.; Frailis M.; Franceschi E.,Galeotta S.; Garilli B.; Gillard W.; Gillis B.; Giocoli C.; Grazian A.,Grupp F.; Haugan S.V.H.; Hoekstra H.; Holmes W.; Hormuth F.; Hornstrup A.,Jahnke K.; Kummel M.; Kermiche S.; Kiessling A.; Kunz M.; Kurki-suonio H.,Laureijs R.; Ligori S.; Lilje P.B.; Lloro I.; Maiorano E.; Marggraf O.,Markovic K.; Marulli F.; Massey R.; Mccracken H.J.; Melchior M.; Meylan G.,Moresco M.; Moscardini L.; Munari E.; Niemi S.M.; Padilla C.; Pasian F.,Pedersen K.; Percival W.J.; Pettorino V.; Pires S.; Poncet M.; Popa L.,Pozzetti L.; Raison F.; Renzi A.; Rhodes J.; Riccio G.; Romelli E.,Rossetti E.; Sapone D.; Sartoris B.; Schneider P.; Secroun A.; Seidel G.,Sirignano C.; Sirri G.; Stanco L.; Tallada-Crespi P.; Tavagnacco D.,Taylor A.N.; Tereno I.; Toledo-moreo R.; Torradeflot F.; Tutusaus I.,Valentijn E.A.; Valenziano L.; Vassallo T.; Wang Y.; Zacchei A.,Zamorani G.; Zoubian J.; Andreon S.; Bardelli S.; Gracia-carpio J.,Maino D.; Mauri N.; Tramacere A.; Zucca E.; Alvarez Ayllon A.; Aussel H.,Baccigalupi C.; Balaguera-Antolinez A.; Ballardini M.; Biviano A.,Bolzonella M.; Bozzo E.; Burigana C.; Cabanac R.; Cappi A.; Carvalho C.S.,Casas S.; Castignani G.; Cooray A.; Coupon J.; Courtois H.M.; Davini S.,Desprez G.; Dole H.; Escartin J.A.; Escoffier S.; Farina M.; Fotopoulou S.,Ganga K.; Garcia-bellido J.; George K.; Giacomini F.; Gozaliasl G.,Hildebrandt H.; Hook I.; Ilbert O.; Kansal V.; Kashlinsky A.; Keihanen E.,Kirkpatrick C.C.; Loureiro A.; Macias-Perez J.; Magliocchetti M.,Mainetti G.; Maoli R.; Martinelli M.; Martinet N.; Metcalf R.B.,Morgante G.; Nadathur S.; Nucita A.A.; Patrizii L.; Popa V.; Porciani C.,Potter D.; Pourtsidou A.; Reimberg P.; Sanchez A.G.; Sakr Z.; Schirmer M.,Sefusatti E.; Sereno M.; Stadel J.; Teyssier R.; Valieri C.; Valiviita J.,Veropalumbo A.; Viel M.
Publisher CDS
Publication Year 2023
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics