Astrometric Redshifts of Supernovae by Jaemyoung (Jason) Lee, Masao Sako, Richard Kessler, Alex I. Malz, The LSST Dark Energy Science Collaboration

“…For a conservative choice of a 5 mas systematic uncertainty floor, we find that our redshift estimation is accurate at z < 0.6. We then combine our astrometric redshifts with both host-galaxy photometric redshifts and supernovae photometric (light-curve) redshifts and show that this considerably improves the overall redshift estimates. …”
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Demography of High-Redshift AGN by Fabrizio Fiore, Simonetta Puccetti, Smita Mathur

“…High-redshift AGN holds the key to understanding early structure formation and to probe the Universe during its infancy. …”
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Use of Redshifts as Evidence of Dark Energy by Jan Stenflo

“…To make contact with observational data, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>a</mi><mo>(</mo><mi>t</mi><mo>)</mo></mrow></semantics></math></inline-formula> function needs to be related to the observable <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>(</mo><mi>r</mi><mo>)</mo></mrow></semantics></math></inline-formula> function, redshift versus distance. Model fitting of data has shown that the equation that governs <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>(</mo><mi>r</mi><mo>)</mo></mrow></semantics></math></inline-formula> needs to contain a constant term, which has been identified as Einstein’s cosmological constant. …”
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HETDEX-LOFAR Spectroscopic Redshift Catalog by Maya H. Debski, Gregory R. Zeimann, Gary J. Hill, Donald P. Schneider, Leah Morabito, Gavin Dalton, Matt J. Jarvis, Erin Mentuch Cooper, Robin Ciardullo, Eric Gawiser, Nika Jurlin

Subjects: “…Redshift surveys…”
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Machine Learning–based Photometric Redshifts for Galaxies in the North Ecliptic Pole Wide Field: Catalogs of Spectroscopic and Photometric Redshifts by Taewan Kim, Jubee Sohn, Ho Seong Hwang, Simon C.-C. Ho, Denis Burgarella, Tomotsugu Goto, Tetsuya Hashimoto, Woong-Seob Jeong, Seong Jin Kim, Matthew A. Malkan, Takamitsu Miyaji, Nagisa Oi, Hyunjin Shim, Hyunmi Song, Narae Hwang, Byeong-Gon Park

Subjects: “…Redshift surveys…”
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Redshift and Photon Energy Attenuation Constant in Vacuum by A. A. Kurayev, V. V. Matveyenka

Subjects: “…redshift…”
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The cosmic timeline implied by the highest redshift quasars by Fulvio Melia

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Early Enrichment Population Theory at High Redshift by Anne E. Blackwell, Joel N. Bregman

“…This population likely existed at high redshifts ( z  ∼ 10), relics of which we posit exist today as dwarf galaxies. …”
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A Glimpse of the New Redshift Frontier through AS1063 by Vasily Kokorev, Hakim Atek, John Chisholm, Ryan Endsley, Iryna Chemerynska, Julian B. Muñoz, Lukas J. Furtak, Richard Pan, Danielle Berg, Seiji Fujimoto, Pascal A. Oesch, Andrea Weibel, Angela Adamo, Jeremy Blaizot, Rychard Bouwens, Miroslava Dessauges-Zavadsky, Gourav Khullar, Damien Korber, Ilias Goovaerts, Michelle Jecmen, Ivo Labbé, Floriane Leclercq, Rui Marques-Chaves, Charlotte Mason, Kristen B. W. McQuinn, Rohan Naidu, Priyamvada Natarajan, Erica Nelson, Joki Rosdahl, Alberto Saldana-Lopez, Daniel Schaerer, Maxime Trebitsch, Marta Volonteri, Adi Zitrin

Subjects: “…High-redshift galaxies…”
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Spatiospectral properties of redshifted free electron laser radiation by Marie Labat, Rui Prazeres, Eléonore Roussel, Yen-Yu Chang, Amin Ghaith, Maxwell LaBerge, Susanne Schöbel, Ulrich Schramm, Patrick Ufer, Marie-Emmanuelle Couprie, Arie Irman

“…Free electron lasers (FELs) are advanced light sources delivering pulses with unprecedented intensity down to the hard x-ray range. Redshifted FEL represents a new scheme exploiting strongly chirped electron beams to emit tunable coherent radiation at wavelengths longer than the FEL's resonant condition. …”
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Searching for Low-redshift Hot Dust-obscured Galaxies by Guodong Li, Jingwen Wu, Chao-Wei Tsai, Daniel Stern, Roberto J. Assef, Peter R. M. Eisenhardt, Kevin McCarthy, Hyunsung D. Jun, Tanio Díaz-Santos, Andrew W. Blain, Trystan Lambert, Dejene Zewdie, Román Fernández Aranda, Cuihuan Li, Yao Wang, Zeyu Tan

“…Hot dust-obscured galaxies (Hot DOGs), discovered by the “W1W2 dropout” selection at high redshifts ( z  ∼ 2–4), are a rare population of hyperluminous obscured quasars. …”
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Low-Redshift Observational Constraints on Dark Energy Cosmologies by Mohammad Malekjani

“…Applying the Markov chain Monte Carlo algorithm and using low-redshift observational data, we put cosmological constraints on dark energy cosmologies. …”
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Searching for Internal Absorption Signatures in High-redshift Blazars by A. Dmytriiev, A. Acharyya, M. Böttcher

“…In this study, we select a sample of γ -ray detected FSRQs with high redshift ( z  ≳ 3) to search for absorption features appearing at lower photon energies due to a substantial redshift. …”
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Gravitational Redshift as a Measure of Rapid Mass Increase by David L. Berkahn, James M. Chappell, Derek Abbott

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Reidentification of Redshifts of SDSS Galaxies Overlapped with Galactic Objects by Masafumi Yagi, Masanori Iye, Hideya Fukumoto

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Primordial Non-Gaussianity Systematics from Redshift Mismatch with SPHEREx by Chandra Shekhar Saraf, David Parkinson

“…We simulate 500 SPHEREx-like galaxy density fields and divide the galaxies into redshift bins assuming Gaussian photometric redshift errors. …”
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The 2023 Flight of the Faint Intergalactic-medium Redshifted Emission Balloon by Drew M. Miles, Vincent Picouet, Zeren Lin, Ignacio Cevallos-Aleman, David Schiminovich, Nicolas Bray, Charles-Antoine Chevrier, Greyson Davis, Erika Hamden, Keri Hoadley, D. Christopher Martin, Bruno Milliard, Johan Montel, David Valls-Gabaud, Simran Agarwal, Philippe Balard, Patrick Blanchard, Harrison Bradley, Haeun Chung, Marty Crabill, Fernando Cruz Aguirre, Xihan Deng, Fabien Harmand, Catherine Hourtolle, Olivia Jones, Nazende I. Kerkeser, Aafaque R. Khan, Gillian Kyne, Jessica S. Li, Nicole Melso, Shouleh Nikzad, Julie Richard, Meghna Sitaram, Jared Termini, Jean-Noel Valdivia, Didier Vibert, Matthew Werneken

“…The second iteration of the Faint Intergalactic-medium Redshifted Emission Balloon (FIREBall-2) is a UV multiobject spectrograph designed to detect emission from the circumgalactic and circumquasar medium at low redshifts ( z < 1). …”
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Inhomogeneous Dust Biases Photometric Redshifts and Stellar Masses for LSST by ChangHoon Hahn, Peter Melchior

“…Spectral energy distribution (SED) modeling is one of the main methods to estimate galaxy properties, such as photometric redshifts, z , and stellar masses, M _* , for extragalactic imaging surveys. …”
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Estimating the Masses of Supercluster-scale Filaments from Redshift Dispersions by Mary Crone Odekon, Trevor W. Viscardi, Jake Rabinowitz, Brandon Young

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The Emerging Black Hole Mass Function in the High-redshift Universe by Junehyoung Jeon, Boyuan Liu, Anthony J. Taylor, Vasily Kokorev, John Chisholm, Dale D. Kocevski, Steven L. Finkelstein, Volker Bromm

“…We find that both pathways can reproduce observations at z  ∼ 5–6, but have distinct features at higher redshifts of z  ∼ 10. Specifically, JWST observations have the potential to constrain the fraction of efficiently accreting (super-Eddington) SMBHs, as well as the existence and prevalence of heavy seeds, in particular through ultradeep observations of blank fields and/or gravitational lensing surveys. …”
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