Abstract
We present the properties of two candidate massive (M⋆ ∼ 1011M⊙) and dusty (Av > 2.5 mag) galaxies at z = 5–7 in the first 0.28 deg2 of the COSMOS-Web survey. One object is spectroscopically confirmed at zspec = 5.051, while the other has a robust zphot = 6.7 ± 0.3. Thanks to their extremely red colors (F277W–F444W ∼ 1.7 mag), these galaxies satisfy the nominal color selection for the widely studied "little red dot" (LRD) population with the exception of their spatially resolved morphologies. The morphology of our targets allows us to conclude that their red continuum is dominated by highly obscured stellar emission and not by reddened nuclear activity.
Original language | English |
---|---|
Article number | L2 |
Journal | The Astrophysical Journal Letters |
Volume | 973 |
Number of pages | 8 |
ISSN | 2041-8205 |
DOIs | |
Publication status | Published - 2024 |
Keywords
- Galaxy evolution
- Galaxy formation
- High-redshift galaxies
- Star formation
- Galaxies