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CoLoRe: fast cosmological realisations over large volumes with multiple tracers

Journal of Cosmology and Astroparticle Physics IOP Publishing 2022:05 (2022) 002

Authors:

César Ramírez-Pérez, Javier Sanchez, David Alonso, Andreu Font-Ribera
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Galaxy Zoo: Clump Scout: Surveying the Local Universe for Giant Star-forming Clumps

The Astrophysical Journal American Astronomical Society 931:1 (2022) 16

Authors:

Dominic Adams, Vihang Mehta, Hugh Dickinson, Claudia Scarlata, Lucy Fortson, Sandor Kruk, Brooke Simmons, Chris Lintott
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Target-of-opportunity Observations of Gravitational-wave Events with Vera C. Rubin Observatory

The Astrophysical Journal Supplement Series American Astronomical Society 260:1 (2022) 18

Authors:

Igor Andreoni, Raffaella Margutti, Om Sharan Salafia, B Parazin, V Ashley Villar, Michael W Coughlin, Peter Yoachim, Kris Mortensen, Daniel Brethauer, SJ Smartt, Mansi M Kasliwal, Kate D Alexander, Shreya Anand, E Berger, Maria Grazia Bernardini, Federica B Bianco, Peter K Blanchard, Joshua S Bloom, Enzo Brocato, Mattia Bulla, Regis Cartier, S Bradley Cenko, Ryan Chornock, Christopher M Copperwheat, Alessandra Corsi, Filippo D’Ammando, Paolo D’Avanzo, Laurence Élise Hélène Datrier, Ryan J Foley, Giancarlo Ghirlanda, Ariel Goobar, Jonathan Grindlay, Aprajita Hajela, Daniel E Holz, Viraj Karambelkar, EC Kool, Gavin P Lamb, Tanmoy Laskar, Andrew Levan, Kate Maguire, Morgan May, Andrea Melandri, Dan Milisavljevic, AA Miller, Matt Nicholl, Samaya M Nissanke, Antonella Palmese, Silvia Piranomonte, Armin Rest, Ana Sagués-Carracedo, Karelle Siellez, Leo P Singer, Mathew Smith, D Steeghs, Nial Tanvir
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The SAMI Galaxy Survey: The Internal Orbital Structure and Mass Distribution of Passive Galaxies from Triaxial Orbit-superposition Schwarzschild Models

The Astrophysical Journal American Astronomical Society 930:2 (2022) 153

Authors:

Giulia Santucci, Sarah Brough, Jesse van de Sande, Richard M McDermid, Glenn van de Ven, Ling Zhu, Francesco D’Eugenio, Joss Bland-Hawthorn, Stefania Barsanti, Julia J Bryant, Scott M Croom, Roger L Davies, Andrew W Green, Jon S Lawrence, Nuria PF Lorente, Matt S Owers, Adriano Poci, Samuel N Richards, Sabine Thater, Sukyoung Yi
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Accurate Baryon Acoustic Oscillations Reconstruction via Semidiscrete Optimal Transport.

Physical review letters 128:20 (2022) 201302

Authors:

Sebastian von Hausegger, Bruno Lévy, Roya Mohayaee

Abstract:

Optimal transport theory has recently re-emerged as a vastly resourceful field of mathematics with elegant applications across physics and computer science. Harnessing methods from geometry processing, we report on the efficient implementation for a specific problem in cosmology-the reconstruction of the linear density field from low redshifts, in particular the recovery of the baryonic acoustic oscillation (BAO) scale. We demonstrate our algorithm's accuracy by retrieving the BAO scale in noiseless cosmological simulations that are dedicated to cancel cosmic variance; we find uncertainties to be reduced by a factor of 4.3 compared with performing no reconstruction, and a factor of 3.1 compared with standard reconstruction.
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