Kavli Affiliate: Eric Oberla | First 5 Authors: Jaime Álvarez-Muñiz, Jaime Álvarez-Muñiz, , , | Summary: The Giant Radio Array for Neutrino Detection (GRAND) is an envisioned observatory of ultra-high-energy particles of cosmic origin, with energies in excess of 100 PeV. GRAND uses large surface arrays of antennas to look for the radio emission from […]

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Joseph F. V. Allingham, Joseph F. V. Allingham, , , | Summary: Massive galaxy clusters act as prominent strong-lenses. Due to a combination of observational biases, cluster evolution and lensing efficiency, most of the known cluster lenses lie typically at $z_lsim0.2-0.7$, with only a few prominent […]

Kavli Affiliate: Daniel Holz | First 5 Authors: Amanda Farah, Amanda Farah, , , | Summary: All gravitational-wave signals are inevitably gravitationally lensed by intervening matter as they propagate through the Universe. When a gravitational-wave signal is magnified, it appears to have originated from a closer, more massive system. Thus, high-mass outliers to the gravitational-wave […]

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Grace Smith, Grace Smith, , , | Summary: We present a strong lensing analysis and reconstruct the mass distribution of SPT-CL J0356-5337, a galaxy cluster at redshift z = 1.034. Our model supersedes previous models by making use of new multi-band HST data and MUSE spectroscopy. […]

Kavli Affiliate: Alexander P. Ji | First 5 Authors: SDSS Collaboration, SDSS Collaboration, , , | Summary: Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial objects to constrain the physical processes that […]

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Michelle A. Berg, Michelle A. Berg, , , | Summary: Gravitational lensing has transformed the field of gas tomography in the intergalactic medium (IGM) and circumgalactic medium (CGM). Here we use the brightest lensed galaxy identified to date, the Sunburst Arc ($z$$approx$2.37), to constrain the physical […]

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: Anowar J. Shajib, Anowar J. Shajib, , , | Summary: The spectral resolution ($R equiv lambda / Delta lambda$) of spectroscopic data is crucial information for accurate kinematic measurements. In this letter, we present a robust measurement of the spectral resolution for the JWST’s Near Infrared […]

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Vance Wheeler, Vance Wheeler, , , | Summary: We use intergalactic medium (IGM) metallicity distributions from several state-of-the-art cosmological simulations of Milky Way analogs and a semi-analytic model of ultra-faint dwarf galaxy (UFD) formation to model the stellar metallicities of UFDs in MW-like environments. We study simulations […]

Kavli Affiliate: Lindsey Bleem | First 5 Authors: Ryan Walker, Ryan Walker, , , | Summary: A wide range of scientific imaging datasets benefit from human inspection for purposes ranging from prosaic-such as fault identification and quality inspection-to profound, enabling the discovery of new phenomena. As such, these datasets come in a wide variety of […]

Kavli Affiliate: Wayne Hu | First 5 Authors: Keisuke Harigaya, Wayne Hu, Rayne Liu, Huangyu Xiao, | Summary: We show that enhancement of the axion relic abundance compared to the standard misalignment contribution generically leads to the production of nonzero momentum axion modes, resulting in warm dark matter behavior and enhanced isocurvature perturbations. It leads […]