E-resources
Peer reviewed
Open access
-
Gentile, Fabrizio; Talia, Margherita; Behiri, Meriem; Zamorani, Giovanni; Barchiesi, Luigi; Vignali, Cristian; Pozzi, Francesca; Bethermin, Matthieu; Enia, Andrea; Faisst, Andreas L.; Giulietti, Marika; Gruppioni, Carlotta; Lapi, Andrea; Massardi, Marcella; Smolčić, Vernesa; Vaccari, Mattia; Cimatti, Andrea
Astrophysical journal/The Astrophysical journal, 02/2024, Volume: 962, Issue: 1Journal Article
Abstract In the last decades, an increasing scientific interest has been growing in the elusive population of dark (i.e., lacking an optical/near-IR, hereafter NIR, counterpart) dusty star-forming galaxies (DSFGs). Although extremely promising for their likely contribution to the cosmic star formation rate density (SFRD) and for their possible role in the evolution of the first massive and passive galaxies around z ∼ 3, the difficulty in selecting statistically significant samples of dark DSFGs is limiting their scientific potentialities. This work presents the first panchromatic study of a sample of 263 radio-selected NIR-dark (RS-NIRdark) galaxies discovered in the COSMOS field following the procedure by Talia et al. These sources are selected as radio-bright galaxies ( S 3 GHz > 12.65 μ Jy) with no counterpart in the NIR-selected COSMOS2020 catalog ( Ks ≳ 25.5 mag). For these sources, we build a new photometric catalog including accurate photometry from the optical to the radio obtained with a new deblending pipeline (Photometry Extractor for Blended Objects, or PhoEBO ). We employ this catalog to estimate the photo- z s and the physical properties of the galaxies through an spectral energy distribution-fitting procedure performed with two different codes ( Magphys and Cigale ). Finally, we estimate the active galactic nucleus contamination in our sample by performing a series of complementary tests. The high values of the median extinction ( A v ∼ 4) and star formation rate (SFR ∼ 500 M ⊙ yr −1 ) confirm the likely DSFG nature of the RS-NIRdark galaxies. The median photo- z ( z ∼ 3) and the presence of a significant tail of high- z candidates ( z > 4.5) suggest that these sources are important contributors to the cosmic SFRD and the evolutionary path of galaxies at high redshifts.
Author
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.