| Title: |
Millimeter-wave observations of Euclid Deep Field South using the South Pole Telescope |
| Authors: |
Archipley, M.; Hryciuk, A.; Bleem, L. E.; Kornoelje, K.; Klein, M.; Anderson, A. J.; Ansarinejad, B.; Aravena, M.; Balkenhol, L.; Barry, P. S.; Benabed, K.; Bender, A. N.; Benson, B. A.; Bianchini, F.; Bocquet, S.; Bouchet, F. R.; Camphuis, E.; Campitiello, M. G.; Carlstrom, J. E.; Cathey, J. |
| Publisher Information: |
EDP Sciences |
| Publication Year: |
2026 |
| Collection: |
Cardiff University: ORCA (Online Research @ Cardiff) |
| Description: |
Context . The South Pole Telescope third-generation camera (SPT-3G) has observed over 10 000 square degrees of sky at 95, 150, and 220 GHz (3.3, 2.0, 1.4 mm, respectively) and will significantly overlap the ongoing 14 000 square-degree Euclid Wide Survey. The Euclid collaboration recently released Euclid Deep Field South (EDF-S) observations of 23 square degrees at wide field depths in the first quick data release (Q1). Aims . With the goal of releasing complementary millimeter-wave data and encouraging legacy science, we performed dedicated observations of a 57-square-degree field overlapping the EDF-S. Methods . The observing time totaled 20 days, and we reached noise depths of 4.3, 3.8, and 13.2 μK-arcmin at 95, 150, and 220 GHz, respectively. Results . In this work we present the temperature maps and two catalogs constructed from these data. The emissive source catalog contains 601 objects (334 inside EDF-S) with 54% synchrotron-dominated sources and 46% thermal dust emission-dominated sources. The 5σ detection thresholds are 1.7, 2.0, and 6.5 mJy in the three bands. The cluster catalog contains 217 cluster candidates (121 inside EDF-S) with median mass M 500c = 2.12 × 10 14 M ⊙ /h 70 and median redshift z = 0.70, corresponding to an order-of-magnitude improvement in cluster density over previous tSZ-selected catalogs in this region (3.81 clusters per square degree). Conclusions . The overlap between SPT and Euclid data will enable a range of multiwavelength studies of the aforementioned source populations. This work serves as the first step toward joint projects between SPT and Euclid and provides a rich dataset containing information on galaxies, clusters, and their environments. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://orca.cardiff.ac.uk/id/eprint/184817/1/aa55798-25.pdf; Archipley, M., Hryciuk, A., Bleem, L. E., Kornoelje, K., Klein, M., Anderson, A. J., Ansarinejad, B., Aravena, M., Balkenhol, L., Barry, P. S. https://orca.cardiff.ac.uk/view/cardiffauthors/A0962246.html, Benabed, K., Bender, A. N., Benson, B. A., Bianchini, F., Bocquet, S., Bouchet, F. R., Camphuis, E., Campitiello, M. G., Carlstrom, J. E. and Cathey, J. 2026. Millimeter-wave observations of Euclid Deep Field South using the South Pole Telescope. Astronomy & Astrophysics 706 , A17. 10.1051/0004-6361/202555798 https://doi.org/10.1051/0004-6361%2F202555798 file https://orca.cardiff.ac.uk/id/eprint/184817/1/aa55798-25.pdf |
| DOI: |
10.1051/0004-6361/202555798 |
| Availability: |
https://orca.cardiff.ac.uk/id/eprint/184817/; https://doi.org/10.1051/0004-6361/202555798 |
| Rights: |
cc_by_4_0 |
| Accession Number: |
edsbas.8212E7E6 |
| Database: |
BASE |