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115 papers · 2 filters
Molecular Gas Properties and CO-to-H2 Conversion Factors in the Central Kiloparsec of NGC 3351
Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun +16
The CO-to-H conversion factor ($α_\rm{CO}$) is critical to studying molecular gas and star formation in galaxies. The value of $α_\rm{CO}$ has been found to vary within and bet…
Exploring the s-process history in the Galactic disk: Cerium abundances and gradients in Open Clusters from the OCCAM/APOGEE sample
J. V. Sales-Silva, S. Daflon, K. Cunha +21
The APOGEE Open Cluster Chemical Abundances and Mapping (OCCAM) survey is used to probe the chemical evolution of the s-process element cerium in the Galactic disk. Cerium abundanc…
APOGEE Detection of N-rich stars in the tidal tails of Palomar 5
Sian G. Phillips, Ricardo P. Schiavon, J. Ted Mackereth +15
Recent results from chemical tagging studies using APOGEE data suggest a strong link between the chemical abundance patterns of stars found within globular clusters, and chemically…
Reconciling the Results of the z~2 MOSDEF and KBSS-MOSFIRE Surveys
Jordan N. Runco, Naveen A. Reddy, Alice E. Shapley +21
The combination of the MOSDEF and KBSS-MOSFIRE surveys represents the largest joint investment of Keck/MOSFIRE time to date, with ~3000 galaxies at 1.4<=z<=3.8, roughly half of whi…
EMPRESS. VI. Outflows Investigated in Low-Mass Galaxies with : Weak Feedback in Low-Mass Galaxies?
Yi Xu, Masami Ouchi, Michael Rauch +10
We study emission line profiles of 21 nearby low-mass () galaxies in deep medium-high resolution spectra taken with Magellan/MagE. These low-mass galaxies ar…
DSPS: Differentiable Stellar Population Synthesis
Andrew P. Hearin, Jonás Chaves-Montero, Alex Alarcon +2
Models of stellar population synthesis (SPS) are the fundamental tool that relates the physical properties of a galaxy to its spectral energy distribution (SED). In this paper, we…