183 citations · 1.5k across the 34 of their papers we have counts for
34 papers
The History and Risks of Reinforcement Learning and Human Feedback
Nathan Lambert, Thomas Krendl Gilbert, Tom Zick
Reinforcement learning from human feedback (RLHF) has emerged as a powerful technique to make large language models (LLMs) easier to use and more effective. A core piece of the RLH…
The MOSDEF Survey: Probing Resolved Stellar Populations at Using a New Bayesian-defined Morphology Metric Called Patchiness
Tara Fetherolf, Naveen A. Reddy, Alice E. Shapley +12
We define a new morphology metric called "patchiness" () that is sensitive to deviations from the average of a resolved distribution, does not require the galaxy center to be de…
The MOSDEF Survey: Towards a Complete Census of the z ~ 2.3 Star-forming Galaxy Population
Jordan N. Runco, Alice E. Shapley, Ryan L. Sanders +16
We analyze the completeness of the MOSDEF survey, in which z ~ 2 galaxies were selected for rest-optical spectroscopy from well-studied HST extragalactic legacy fields down to a fi…
The MOSDEF Survey: A New View of a Remarkable z=1.89 Merger
Jordan N. Runco, Alice E. Shapley, Mariska Kriek +13
We present a detailed study of a galaxy merger taking place at in the GOODS-S field. Here we analyze Keck/MOSFIRE spectroscopic observations from the MOSFIRE Deep Evolutio…
Reward Reports for Reinforcement Learning
Thomas Krendl Gilbert, Nathan Lambert, Sarah Dean +2
Building systems that are good for society in the face of complex societal effects requires a dynamic approach. Recent approaches to machine learning (ML) documentation have demons…
Choices, Risks, and Reward Reports: Charting Public Policy for Reinforcement Learning Systems
Thomas Krendl Gilbert, Sarah Dean, Tom Zick +1
In the long term, reinforcement learning (RL) is considered by many AI theorists to be the most promising path to artificial general intelligence. This places RL practitioners in a…
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…
The MOSDEF Survey: The Dependence of H-to-UV SFR Ratios on SFR and Size at
Tara Fetherolf, Naveen A. Reddy, Alice E. Shapley +12
We perform an aperture-matched analysis of dust-corrected H and UV SFRs using 303 star-forming galaxies with spectroscopic redshifts from the MOSFIRE D…
Axes for Sociotechnical Inquiry in AI Research
Sarah Dean, Thomas Krendl Gilbert, Nathan Lambert +1
The development of artificial intelligence (AI) technologies has far exceeded the investigation of their relationship with society. Sociotechnical inquiry is needed to mitigate the…
The MOSDEF Survey: The Mass-Metallicity relationship and the existence of the FMR at z~1.5
Michael W. Topping, Alice E. Shapley, Ryan L. Sanders +16
We analyze the rest-optical emission-line ratios of z~1.5 galaxies drawn from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Using composite spectra we investigate the mass-meta…
AI Development for the Public Interest: From Abstraction Traps to Sociotechnical Risks
McKane Andrus, Sarah Dean, Thomas Krendl Gilbert +2
Despite interest in communicating ethical problems and social contexts within the undergraduate curriculum to advance Public Interest Technology (PIT) goals, interventions at the g…
The MOSDEF Survey: Environmental dependence of the gas-phase metallicity of galaxies at
Nima Chartab, Bahram Mobasher, Alice E. Shapley +13
Using the near-IR spectroscopy of the MOSFIRE Deep Evolution Field (MOSDEF) survey, we investigate the role of local environment in the gas-phase metallicity of galaxies. The local…
The MOSDEF Survey: Neon as a Probe of ISM Physical Conditions at High Redshift
Moon-Seong Jeong, Alice E. Shapley, Ryan L. Sanders +17
We present results on the properties of neon emission in star-forming galaxies drawn from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Doubly-ionized neon ([NeIII]386…
The MOSDEF Survey: The First Direct Measurements of the Nebular Dust Attenuation Curve at High Redshift
Naveen A. Reddy, Alice E. Shapley, Mariska Kriek +12
We use a sample of 532 star-forming galaxies at redshifts with deep rest-frame optical spectra from the MOSFIRE Deep Evolution Field (MOSDEF) survey to place the fi…
The MOSDEF Survey: An Improved Voronoi Binning Technique on Spatially Resolved Stellar Populations at z~2
Tara Fetherolf, Naveen Reddy, Alice Shapley +12
We use a sample of 350 star-forming galaxies at from the MOSFIRE Deep Evolution Field survey to demonstrate an improved Voronoi binning technique that we use to study…
The MOSDEF Survey: A Comprehensive Analysis of the Rest-optical Emission-line Properties of Star-forming Galaxies
Jordan N. Runco, Alice E. Shapley, Ryan L. Sanders +16
We analyze the rest-optical emission-line spectra of star-forming galaxies in the complete MOSFIRE Deep Evolution Field (MOSDEF) survey. In investigating the origin of t…
The MOSDEF Survey: Differences in SFR and Metallicity for Morphologically-Selected Mergers at z~2
Katelyn Horstman, Alice E. Shapley, Ryan L. Sanders +15
We study the properties of 55 morphologically-identified merging galaxy systems at z~2. These systems are flagged as mergers based on features such as tidal tails, double nuclei, a…
The MOSDEF Survey: the Variation of the Dust Attenuation Curve with Metallicity
Irene Shivaei, Naveen Reddy, George Rieke +14
We derive the UV-optical stellar dust attenuation curve of galaxies at z=1.4-2.6 as a function of gas-phase metallicity. We use a sample of 218 star-forming galaxies, excluding tho…
Towards Studying Hierarchical Assembly in Real Time: A Milky Way Progenitor Galaxy at z = 2.36 under the Microscope
Tom O. Zick, Daniel R. Weisz, Bruno Ribeiro +4
We use Hubble Space Telescope (HST) imaging and near-infrared spectroscopy from Keck/MOSFIRE to study the sub-structure around the progenitor of a Milky Way-mass galaxy in the Hubb…
The MOSDEF Survey: [SIII] as a New Probe of Evolving ISM Conditions
Ryan L. Sanders, Tucker Jones, Alice E. Shapley +15
We present measurements of [SIII]9069,9531 for a sample of star-forming galaxies, the first sample with measurements of these lines at z>0.1. We employ the line rati…
The MOSDEF Survey: The Metallicity Dependence of X-ray Binary Populations at
Francesca M. Fornasini, Mariska Kriek, Ryan L. Sanders +15
Population synthesis models predict that high-mass X-ray binary (HMXB) populations produced in low metallicity environments should be more X-ray luminous, a trend supported by stud…
The MOSDEF Survey: Sulfur Emission-line Ratios Provide New Insights into Evolving ISM Conditions at High Redshift
Alice E. Shapley, Ryan L. Sanders, Peng Shao +15
We present results on the emission-line properties of 1.3<=z<=2.7 galaxies drawn from the complete MOSFIRE Deep Evolution Field (MOSDEF) survey. Specifically, we use observations o…
The MOSDEF Survey: Direct-Method Metallicities and ISM Conditions at
Ryan L. Sanders, Alice E. Shapley, Naveen A. Reddy +14
We present detections of [OIII]4363 and direct-method metallicities for star-forming galaxies at . We combine new measurements from the MOSFIRE Deep Evolution Field (…
The MOSDEF survey: a census of AGN-driven ionized outflows at
Gene C. K. Leung, Alison L. Coil, James Aird +13
Using data from the MOSFIRE Deep Evolution Field (MOSDEF) survey, we present a census of AGN-driven ionized outflows in a sample of 159 AGNs at . The sample span…