13 papers
The Fraction of Clumpy Galaxies in JADES Over
Alexander de la Vega, Bahram Mobasher, Zahra Sattari +3
High-redshift galaxies exhibit compact regions of intense star formation, known as ``clumps,'' which are conspicuous in the rest-frame ultraviolet. Studying them can shed light on…
Spatially resolved gas-phase metallicity at z~2-3 with JWST/NIRISS
Ayan Acharyya, Peter J. Watson, Benedetta Vulcani +24
Spatially resolved gas-phase metallicity maps are a crucial element in understanding the chemical evolution of galaxies. We present spatially resolved metallicity maps obtained fro…
The NIRISS PASSAGE Spectroscopic Redshift Catalog in COSMOS
Mason S. Huberty, Kalina V. Nedkova, Zahra Sattari +34
We present the Parallel Application of Slitless Spectroscopy to Analyze Galaxy Evolution (PASSAGE) spectroscopic redshift catalog in the COSMOS field. PASSAGE is a JWST Cycle 1 Nea…
Optical Spectroscopy of Dwarf Galaxies at in the COSMOS Field: Star Formation and Dust Properties
Zahra Sattari, Daniel D. Kelson, Bahram Mobasher +4
We present a spectroscopic study of low-mass galaxies (LMGs;) at in COSMOS field, and compare it to a control sample of intermediate-ma…
Learning to See Sharper: A Physics-Informed Artificial Intelligence Framework for Super-Resolving Galaxy Spectra
Aryana Haghjoo, Shoubaneh Hemmati, Bahram Mobasher +6
The information recoverable from galaxy spectra depends fundamentally on spectral resolution, yet assembling large samples at high resolution remains observationally expensive. We…
COSMOS Spectroscopic Redshift Compilation (First Data Release): 488k Redshifts Encompassing Two Decades of Spectroscopy
Ali Ahmad Khostovan, Jeyhan S. Kartaltepe, Mara Salvato +54
We present the COSMOS Spectroscopic Redshift Compilation encompassing ~ 20 years of spectroscopic redshifts within a 10 deg area centered on the 2 deg COSMOS legacy field.…