Long-Exposure NuSTAR Constraints on Decaying Dark Matter in the Galactic Halo

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Brandon M. Roach, Steven Rossland, Kenny C. Y. Ng, Kerstin Perez, John F. Beacom | Summary: We present two complementary NuSTAR x-ray searches for keV-scale dark matter decaying to mono-energetic photons in the Milky Way halo. In the first, we utilize the known intensity pattern of unfocused […]


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Chemical Abundances of the Typhon Stellar Stream

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Alexander P. Ji, Rohan P. Naidu, Kaley Brauer, Yuan-Sen Ting, Joshua D. Simon | Summary: We present the first high-resolution chemical abundances of seven stars in the recently discovered high-energy dwarf galaxy stream Typhon. Typhon stars have apocenters reaching to ${gtrsim}100$ kpc, making this the first […]


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Rhymes in primes

Kavli Affiliate: Andrei Okounkov | First 5 Authors: Andrei Okounkov, , , , | Summary: This is a popular article about the work of James Maynard, 2022 Fields medalist. | Search Query: ArXiv Query: search_query=au:”Andrei Okounkov”&id_list=&start=0&max_results=3 Read More


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Moderate-Resolution $K$-Band Spectroscopy of the Substellar Companion VHS 1256 b

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Kielan K. W. Hoch, Quinn M. Konopacky, Travis S. Barman, Christopher A. Theissen, Laci Brock | Summary: We present moderate-resolution ($Rsim4000$) $K$ band spectra of the planetary-mass companion VHS 1256 b. The data were taken with the OSIRIS integral field spectrograph at the W.M. Keck Observatory. The […]


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