COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Maxwell Klein, Keren Sharon, Kate Napier, Michael D. Gladders, Gourav Khullar | Summary: We present a strong lensing analysis of COOL J1241+2219, the brightest known gravitationally lensed galaxy at $z geq 5$, based on new multi-band Hubble Space Telescope (HST) imaging data. The lensed galaxy has […]


Continue.. COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Gravitational Lenses in DECaLS

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Simon D. Mork, Michael D. Gladders, Gourav Khullar, Keren Sharon, Nathalie Chicoine | Summary: We compute parametric measurements of the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically-selected Lenses Located At the Margins of Public Surveys (COOL-LAMPS) collaboration with lens […]


Continue.. COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Gravitational Lenses in DECaLS

COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Gravitational Lenses in DECaLS

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Simon D. Mork, Michael D. Gladders, Gourav Khullar, Keren Sharon, Nathalie Chicoine | Summary: We compute parametric measurements of the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically-selected Lenses Located At the Margins of Public Surveys (COOL-LAMPS) collaboration with lens […]


Continue.. COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Gravitational Lenses in DECaLS

On the Physical Nature of Ly$α$ Transmission Spikes in High Redshift Quasar Spectra

Kavli Affiliate: Nickolay Gnedin | First 5 Authors: Hanjue Zhu, Nickolay Gnedin, Camille Avestruz, , | Summary: We investigate Lyman-alpha (Ly$alpha$) transmission spikes at $5.2 < z < 6.8$ using synthetic quasar spectra from the “Cosmic Reionization On Computers" simulations. We focus on understanding the relationship between these spikes and the properties of the intergalactic […]


Continue.. On the Physical Nature of Ly$α$ Transmission Spikes in High Redshift Quasar Spectra

Spectacular nucleosynthesis from early massive stars

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Alexander P. Ji, Sanjana Curtis, Nicholas Storm, Vedant Chandra, Kevin C. Schlaufman | Summary: Stars formed with initial mass over 50 Msun are very rare today, but they are thought to be more common in the early universe. The fates of those early, metal-poor, massive stars […]


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Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Sam A. Usman, Alexander P. Ji, Ting S. Li, Andrew B. Pace, Lara R. Cullinane | Summary: Milky Way globular clusters (GCs) display chemical enrichment in a phenomenon called multiple stellar populations (MSPs). While the enrichment mechanism is not fully understood, there is a correlation between […]


Continue.. Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream