The COSMOS-Web deep galaxy group catalog up to $z=3.7$
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909635847389184 |
|---|---|
| author | Toni, Greta Gozaliasl, Ghassem Maturi, Matteo Moscardini, Lauro Finoguenov, Alexis Castignani, Gianluca Gentile, Fabrizio Virolainen, Kaija Casey, Caitlin M. Kartaltepe, Jeyhan S. Akins, Hollis B. Allen, Natalie Arango-Toro, Rafael C. Babul, Arif Brinch, Malte Drakos, Nicole E. Faisst, Andreas L. Franco, Maximilien Griffiths, Richard E. Harish, Santosh Hasinger, Günther Ilbert, Olivier Jin, Shuowen Khostovan, Ali Ahmad Koekemoer, Anton M. Korpi-Lagg, Maarit Larson, Rebecca L. Lertprasertpong, Jitrapon Liu, Daizhong Magdis, Georgios Massey, Richard McCracken, Henry J. McKinney, Jed Paquereau, Louise Rhodes, Jason Robertson, Brant E. Sargent, Mark Shuntov, Marko Tanaka, Masayuki Taamoli, Sina Tempel, Elmo Toft, Sune Vardoulaki, Eleni Yang, Lilan |
| author_facet | Toni, Greta Gozaliasl, Ghassem Maturi, Matteo Moscardini, Lauro Finoguenov, Alexis Castignani, Gianluca Gentile, Fabrizio Virolainen, Kaija Casey, Caitlin M. Kartaltepe, Jeyhan S. Akins, Hollis B. Allen, Natalie Arango-Toro, Rafael C. Babul, Arif Brinch, Malte Drakos, Nicole E. Faisst, Andreas L. Franco, Maximilien Griffiths, Richard E. Harish, Santosh Hasinger, Günther Ilbert, Olivier Jin, Shuowen Khostovan, Ali Ahmad Koekemoer, Anton M. Korpi-Lagg, Maarit Larson, Rebecca L. Lertprasertpong, Jitrapon Liu, Daizhong Magdis, Georgios Massey, Richard McCracken, Henry J. McKinney, Jed Paquereau, Louise Rhodes, Jason Robertson, Brant E. Sargent, Mark Shuntov, Marko Tanaka, Masayuki Taamoli, Sina Tempel, Elmo Toft, Sune Vardoulaki, Eleni Yang, Lilan |
| contents | Galaxy groups with $M_{tot} \lesssim 10^{14}$ $M_\odot$ and up to a few tens of members are the most common galaxy environment, marking the transition between field and massive clusters. Identifying groups plays a crucial role in understanding structure formation and galaxy evolution. Modern deep surveys allow us to build well-characterized samples of groups up to the regime where structures were taking shape. We aimed to build the largest deep catalog of galaxy groups to date over the COSMOS-Web field effective area of 0.45 deg$^2$, leveraging the deep high quality data of the new COSMOS-Web photometric catalog resulted from the James Webb Space Telescope observations of the COSMOS-Web field. We performed the group search with the AMICO algorithm, a linear matched filter based on an analytical model for the group signal. AMICO has already been tested in wide and deep field surveys, including COSMOS data up to $z=2$. In this work, we tested the algorithm performances at even higher redshift and searched for protocluster cores at $z>2$. We compiled a list of known protoclusters in COSMOS at $2 \leq z \leq 3.7$, matched them with our detections and studied the clustering of the detected cores. We estimated purity and completeness of our sample by creating data-driven mocks with the SinFoniA code and linked signal-to-noise to purity. We detected 1678 groups in the COSMOS-Web field up to $z=3.7$, including lists of members extending nearly two magnitudes deeper than the previous AMICO-COSMOS catalog. 756 groups were detected with purity of 80\%. More than 500 groups have their redshift confirmed by assigning spectroscopic counterparts. This group catalog offers a unique opportunity to explore galaxy evolution in different environments spanning $\sim$12 Gyr and to study groups, from the least rich population to the formation of the most massive clusters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_09060 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The COSMOS-Web deep galaxy group catalog up to $z=3.7$ Toni, Greta Gozaliasl, Ghassem Maturi, Matteo Moscardini, Lauro Finoguenov, Alexis Castignani, Gianluca Gentile, Fabrizio Virolainen, Kaija Casey, Caitlin M. Kartaltepe, Jeyhan S. Akins, Hollis B. Allen, Natalie Arango-Toro, Rafael C. Babul, Arif Brinch, Malte Drakos, Nicole E. Faisst, Andreas L. Franco, Maximilien Griffiths, Richard E. Harish, Santosh Hasinger, Günther Ilbert, Olivier Jin, Shuowen Khostovan, Ali Ahmad Koekemoer, Anton M. Korpi-Lagg, Maarit Larson, Rebecca L. Lertprasertpong, Jitrapon Liu, Daizhong Magdis, Georgios Massey, Richard McCracken, Henry J. McKinney, Jed Paquereau, Louise Rhodes, Jason Robertson, Brant E. Sargent, Mark Shuntov, Marko Tanaka, Masayuki Taamoli, Sina Tempel, Elmo Toft, Sune Vardoulaki, Eleni Yang, Lilan Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Galaxy groups with $M_{tot} \lesssim 10^{14}$ $M_\odot$ and up to a few tens of members are the most common galaxy environment, marking the transition between field and massive clusters. Identifying groups plays a crucial role in understanding structure formation and galaxy evolution. Modern deep surveys allow us to build well-characterized samples of groups up to the regime where structures were taking shape. We aimed to build the largest deep catalog of galaxy groups to date over the COSMOS-Web field effective area of 0.45 deg$^2$, leveraging the deep high quality data of the new COSMOS-Web photometric catalog resulted from the James Webb Space Telescope observations of the COSMOS-Web field. We performed the group search with the AMICO algorithm, a linear matched filter based on an analytical model for the group signal. AMICO has already been tested in wide and deep field surveys, including COSMOS data up to $z=2$. In this work, we tested the algorithm performances at even higher redshift and searched for protocluster cores at $z>2$. We compiled a list of known protoclusters in COSMOS at $2 \leq z \leq 3.7$, matched them with our detections and studied the clustering of the detected cores. We estimated purity and completeness of our sample by creating data-driven mocks with the SinFoniA code and linked signal-to-noise to purity. We detected 1678 groups in the COSMOS-Web field up to $z=3.7$, including lists of members extending nearly two magnitudes deeper than the previous AMICO-COSMOS catalog. 756 groups were detected with purity of 80\%. More than 500 groups have their redshift confirmed by assigning spectroscopic counterparts. This group catalog offers a unique opportunity to explore galaxy evolution in different environments spanning $\sim$12 Gyr and to study groups, from the least rich population to the formation of the most massive clusters. |
| title | The COSMOS-Web deep galaxy group catalog up to $z=3.7$ |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2501.09060 |