313 citations · 471 across the 23 of their papers we have counts for
8 papers · 1 filter
Peering down the barrel with DESI DR2: 10 000+ inflows at < 0.6 reveal how galaxies accrete cold gas
S. Weng, A. Saintonge, M. Pieri +39
Direct observational constraints on how galaxies acquire their gas remain remarkably limited, hindering our understanding of the baryon cycle. We present a search for down-the-barr…
Highly Efficient Selection of High-Redshift Emission-Line Galaxies for future DESI-like surveys with Deep Multi-band Imaging
Yoquelbin Salcedo Hernandez, Jeffrey A. Newman, Brett. H. Andrews +53
Emission-line galaxies (ELGs) are an important tracer of baryon acoustic oscillations (BAO) and large-scale structure (LSS) at . In this work, we investigate the feasibility…
Optimizing Photometric Redshift Training Sets I: Efficient Compression of the Galaxy Color-Redshift Relation with UMAP
Finian Ashmead, Jeffrey A. Newman, Brett H. Andrews +4
Spectroscopic datasets are essential for training and calibrating photometric redshift (photo-) methods. However, spectroscopic redshifts (spec-'s) constitute a biased and sp…
Deep Learning Improves Photometric Redshifts in All Regions of Color Space
Emma R. Moran, Brett H. Andrews, Jeffrey A. Newman +1
Photometric redshifts (photo-'s) are crucial for the cosmology, galaxy evolution, and transient science drivers of next-generation imaging facilities like the Euclid Mission, th…
DESI Mg II Absorbers: Extinction Characteristics & Quasar Redshift Accuracy
Lucas Napolitano, Adam D. Myers, Vicky Fawcett +32
In this paper, we study how absorption-line systems affect the spectra and redshifts of quasars (QSOs), using catalogs of Mg II absorbers from the early data release (EDR) and firs…
Stellar reddening map from DESI imaging and spectroscopy
Rongpu Zhou, Julien Guy, Sergey E. Koposov +54
We present new Galactic dust reddening maps of the high Galactic latitude sky using DESI imaging and spectroscopy. We directly measure the reddening of 2.6 million stars by compari…
How well do local relations predict gas-phase metallicity gradients? Results from SDSS-IV MaNGA
Nicholas F. Boardman, Gail Zasowski, Jeffrey A. Newman +8
Gas-phase metallicity gradients in galaxies provide important clues to those galaxies' formation histories. Using SDSS-IV MaNGA data, we previously demonstrated that gas metallicit…
SDSS-IV MaNGA: galaxy gas-phase metallicity gradients vary across the mass-size plane
Nicholas F. Boardman, Gail Zasowski, Jeffrey A. Newman +5
Gas-phase abundances and abundance gradients provide much information on past stellar generations, and are powerful probes of how galaxies evolve. Gas abundance gradients in galaxi…