Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing by James B. Dent, Bhaskar Dutta, Tao Xu

“…Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations lead to complementary constraints on parameter space combinations including the axion-photon coupling, axion mass, black hole mass, and its dark matter fraction, fPBH. For the asteroid mass range ∼1016−1022g, where primordial black holes can provide the totality of dark matter, we demonstrate that ongoing and upcoming observations such as SXI, JWST, and AMEGO-X will be sensitive to possible line and continuum signals, respectively, providing probes of previously inaccessible regions of fPBH parameter space. …”
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Dimorphos’s Material Properties and Estimates of Crater Size from the DART Impact by Angela M. Stickle, Kathryn M. Kumamoto, Dawn M. Graninger, Mallory E. DeCoster, Wendy K. Caldwell, Jason M. Pearl, J. Michael Owen, Olivier Barnouin, Gareth S. Collins, R. Terik Daly, Isabel Herreros, Jens Ormö, Jessica Sunshine, Carolyn M. Ernst, Toshi Hirabayashi, Simone Marchi, Laura Parro, Harrison Agrusa, Megan Bruck Syal, Nancy L. Chabot, Andy F. Cheng, Thomas M. Davison, Elisabetta Dotto, Eugene G. Fahenstock, Fabio Ferrari, Martin Jutzi, Alice Lucchetti, Robert Luther, Nilanjan Mitra, Maurizio Pajola, Sabina Raducan, KT Ramesh, Andrew S. Rivkin, Alessandro Rossi, Paul Sánchez, Stephen R. Schwartz, Stefania Soldini, Jordan K. Steckloff, Filippo Tusberti, Kai Wünnemann, Yun Zhang

Subjects: “…Asteroids…”
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Grand canyons on the Moon by David A. Kring, Danielle P. Kallenborn, Gareth S. Collins

“…Here we use photogeologic mapping of those canyons and related impact ejecta deposits to show the trajectory of the impacting asteroid or comet, which produced an asymmetrical pattern of crater excavation and transport of ejected debris. …”
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