@article{hall-hooper_saibaba_chung_miller_2024, title={Efficient iterative methods for hyperparameter estimation in large-scale linear inverse problems}, volume={50}, ISSN={["1572-9044"]}, DOI={10.1007/s10444-024-10208-6}, number={6}, journal={ADVANCES IN COMPUTATIONAL MATHEMATICS}, author={Hall-Hooper, Khalil A. and Saibaba, Arvind K. and Chung, Julianne and Miller, Scot M.}, year={2024}, month={Dec} } @article{suess_kriek_bezanson_greene_setton_spilker_feldmann_goulding_johnson_leja_et al._2022, title={SQuIGG(L)over-right-arrowE: Studying Quenching in Intermediate-z Galaxies-Gas, Angu(L)over-right-arrowar Momentum, and Evolution}, volume={926}, ISSN={["1538-4357"]}, DOI={10.3847/1538-4357/ac404a}, abstractNote={Abstract We describe the Studying Quenching in Intermediate-z Galaxies: Gas, angu L → ar momentum, and Evolution ( SQuIGG L ⃗ E ) survey of intermediate-redshift post-starburst galaxies. We leverage the large sky coverage of the Sloan Digital Sky Survey to select ∼ 1300 recently quenched galaxies at 0.5 < z ≤ 0.9 based on their unique spectral shapes. These bright, intermediate-redshift galaxies are ideal laboratories to study the physics responsible for the rapid quenching of star formation: they are distant enough to be useful analogs for high-redshift quenching galaxies, but low enough redshift that multiwavelength follow-up observations are feasible with modest telescope investments. We use the Prospector code to infer the stellar population properties and nonparametric star formation histories (SFHs) of all galaxies in the sample. We find that SQuIGG L ⃗ E galaxies are both very massive (M * ∼ 1011.25 M ⊙) and quenched, with inferred star formation rates ≲1 M ⊙ yr−1, more than an order of magnitude below the star-forming main sequence. The best-fit SFHs confirm that these galaxies recently quenched a major burst of star formation: >75% of SQuIGG L ⃗ E galaxies formed at least a quarter of their total stellar mass in the recent burst, which ended just ∼200 Myr before observation. We find that SQuIGG L ⃗ E galaxies are on average younger and more burst-dominated than most other z ≲ 1 post-starburst galaxy samples. This large sample of bright post-starburst galaxies at intermediate redshift opens a wide range of studies into the quenching process. In particular, the full SQuIGG L ⃗ E survey will investigate the molecular gas reservoirs, morphologies, kinematics, resolved stellar populations, active galactic nucleus incidence, and infrared properties of this unique sample of galaxies in order to place definitive constraints on the quenching process.}, number={1}, journal={ASTROPHYSICAL JOURNAL}, author={Suess, Katherine A. and Kriek, Mariska and Bezanson, Rachel and Greene, Jenny E. and Setton, David and Spilker, Justin S. and Feldmann, Robert and Goulding, Andy D. and Johnson, Benjamin D. and Leja, Joel and et al.}, year={2022}, month={Feb} } @article{suess_kriek_bezanson_greene_setton_spilker_feldmann_goulding_johnson_leja_et al._2022, title={SQuIGGLE: Studying Quenching in Intermediate-z Galaxies- Gas,. AnguLar Momentum, and Evolution (vol 926, 89 2022)}, volume={931}, ISSN={["1538-4357"]}, DOI={10.3847/1538-4357/ac6dde}, abstractNote={Khalil Hall-Hooper, Qiana Hunt , Sidney Lower , and Margaret Verrico 1 Astronomy Department, University of California, Berkeley, CA 94720, USA; suess@ucsc.edu 2 Department of Astronomy and Astrophysics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 USA 3 Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University, Stanford, CA 94305, USA 4 Leiden Observatory, Leiden University, P.O.Box 9513, NL-2300 AA Leiden, The Netherlands 5 Department of Physics and Astronomy and PITT PACC, University of Pittsburgh, Pittsburgh, PA 15260, USA 6 Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA 7 Department of Astronomy, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 8 Institute for Computational Science, University of Zurich, CH-8057 Zurich, Switzerland 9 Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA 10 Department of Astronomy & Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA 11 Institute for Computational & Data Sciences, The Pennsylvania State University, University Park, PA, USA 12 Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA 13 Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611, USA 14 University of Florida Informatics Institute, 432 Newell Drive, CISE Bldg E251 Gainesville, FL, 32611, US 15 Cosmic Dawn Centre at the Niels Bohr Institue, University of Copenhagen and DTU-Space, Technical University of Denmark, Denmark 16 Department of Mathematics, North Carolina State University, 2108 SAS Hall Box 8205, Raleigh, NC 27695, USA 17 Department of Astronomy, University of Michigan, 1085 S University, Ann Arbor, MI 48109, USA Received 2022 May 2; revised 2022 May 5; published 2022 May 25}, number={1}, journal={ASTROPHYSICAL JOURNAL}, author={Suess, Katherine A. and Kriek, Mariska and Bezanson, Rachel and Greene, Jenny E. and Setton, David and Spilker, Justin S. and Feldmann, Robert and Goulding, Andy D. and Johnson, Benjamin D. and Leja, Joel and et al.}, year={2022}, month={May} } @article{setton_verrico_bezanson_greene_suess_goulding_spilker_kriek_feldmann_narayanan_et al._2022, title={The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample}, volume={931}, ISSN={["1538-4357"]}, DOI={10.3847/1538-4357/ac6096}, abstractNote={Abstract We present structural measurements of 145 spectroscopically selected intermediate-redshift (z ∼ 0.7), massive (M ⋆ ∼ 1011 M ⊙) post-starburst galaxies from the SQuIGG L ⃗ E sample measured using wide-depth Hyper Suprime-Cam i-band imaging. This deep imaging allows us to probe the sizes and structures of these galaxies, which we compare to a control sample of star-forming and quiescent galaxies drawn from the LEGA-C Survey. We find that post-starburst galaxies systematically lie ∼0.1 dex below the quiescent mass–size (half-light radius) relation, with a scatter of ∼0.2 dex. This finding is bolstered by nonparametric measures, such as the Gini coefficient and the concentration, which also reveal these galaxies to have more compact light profiles than both quiescent and star-forming populations at similar mass and redshift. The sizes of post-starburst galaxies show either negative or no correlation with the time since quenching, such that more recently quenched galaxies are larger or similarly sized. This empirical finding disfavors the formation of post-starburst galaxies via a purely central burst of star formation that simultaneously shrinks the galaxy and shuts off star formation. We show that the central densities of post-starburst and quiescent galaxies at this epoch are very similar, in contrast with their effective radii. The structural properties of z ∼ 0.7 post-starburst galaxies match those of quiescent galaxies that formed in the early universe, suggesting that rapid quenching in the present epoch is driven by a similar mechanism to the one at high redshift.}, number={1}, journal={ASTROPHYSICAL JOURNAL}, author={Setton, David J. and Verrico, Margaret and Bezanson, Rachel and Greene, Jenny E. and Suess, Katherine A. and Goulding, Andy D. and Spilker, Justin S. and Kriek, Mariska and Feldmann, Robert and Narayanan, Desika and et al.}, year={2022}, month={May} }