Kavli Affiliate: Alexander Ji | First 5 Authors: Ilija Medan, Tom Dwelly, Kevin R. Covey, Eleonora Zari, Michael R. Blanton | Summary: One crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in […]

Kavli Affiliate: Alexander Ji | First 5 Authors: Ilija Medan, Ilija Medan, , , | Summary: One crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in their science goals. The Sloan Digital […]

Kavli Affiliate: Richard Kessler | First 5 Authors: Richard Kessler, Rebekah Hounsell, Bhavin Joshi, David Rubin, Masao Sako | Summary: Within the next few years, the upcoming Nancy Grace Roman Space Telescope will be gathering data for the High Latitude Time Domain Survey (HLTDS) that will be used to significantly improve the Type Ia supernova […]

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: Simon Birrer, Elizabeth J. Buckley-Geer, Michele Cappellari, Frederic Courbin, Frederic Dux | Summary: We present cosmological constraints from 8 strongly lensed quasars (hereafter, the TDCOSMO-2025 sample). Building on previous work, our analysis incorporated new deflector stellar velocity dispersions measured from spectra obtained with the James Webb […]

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: TDCOSMO Collaboration, Simon Birrer, Elizabeth J. Buckley-Geer, Michele Cappellari, Frédéric Courbin | Summary: We present cosmological constraints from 8 strongly lensed quasars (hereafter, the TDCOSMO-2025 sample). Building on previous work, our analysis incorporated new deflector stellar velocity dispersions measured from spectra obtained with the James Webb […]

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: TDCOSMO Collaboration, Simon Birrer, Elizabeth J. Buckley-Geer, Michele Cappellari, Frédéric Courbin | Summary: We present cosmological constraints from 8 strongly lensed quasars (hereafter, the TDCOSMO-2025 sample). Building on previous work, our analysis incorporated new deflector stellar velocity dispersions measured from spectra obtained with the James Webb […]

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Barry F. Madore, Wendy L. Freedman, Kayla Owens, , | Summary: This is the second of two papers exploring the effects of metallicity on the multi-wavelength properties of Cepheids in terms of their multi-wavelength period-luminosity (PL) relations, impacting their use as extragalactic distance indicators, underpinning one […]

Kavli Affiliate: Alexander Ji | First 5 Authors: Michael R. Blanton, Joleen K. Carlberg, Tom Dwelly, Ilija Medan, S. Drew Chojnowski | Summary: We present an algorithmic method for efficiently planning a long-term, large-scale multi-object spectroscopy program. The Sloan Digital Sky Survey V (SDSS-V) Focal Plane System performs multi-object spectroscopy using 500 robotic positioners to […]

Kavli Affiliate: Stephan S. Meyer | First 5 Authors: James. H. Adams Jr., Denis Allard, Phillip Alldredge, Luis Anchordoqui, Anna Anzalone | Summary: The Extreme Universe Space Observatory on a Super Pressure Balloon 2 (EUSO-SPB2) is a pathfinder mission toward a space-based observatory such as the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). The aim of […]

Kavli Affiliate: Salman Habib | First 5 Authors: Salman Habib, Remi Chou, Taejoon Kim, , | Summary: The reconstruction of sparse signals from a limited set of measurements poses a significant challenge as it necessitates a solution to an underdetermined system of linear equations. Compressed sensing (CS) deals with sparse signal reconstruction using techniques such […]