COOL-LAMPS I. An Extraordinarily Bright Lensed Galaxy at Redshift 5.04

Posted by Chicago

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Gourav Khullar, Katya Gozman, Jason J. Lin, Michael N. Martinez, Owen S. Matthews Acuña | Summary: We report the discovery of COOL J1241+2219, a strongly-lensed galaxy at redshift $z$=5.043$pm$0.002 with observed magnitude $z_{AB}=20.47$, lensed by a moderate-mass galaxy cluster at $z$=1.001$pm$0.001. COOL J1241+2219 is the brightest […]


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Strongly-Interacting Ultralight Millicharged Particles

Posted by klaurent Tokyo

Kavli Affiliate: David N. Spergel | First 5 Authors: Stephon Alexander, Evan McDonough, David N. Spergel, , | Summary: We consider the implications of an ultra-light fermionic dark matter candidate that carries baryon number. This naturally arises if dark matter has a small charge under standard model baryon number whilst having an asymmetry equal and […]


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