Kavli Affiliate: Claude Canizares | Summary:Evidence suggests that when compact objects such as black holes and neutron stars form, they may receive a “natal kick,” where the stellar remnant gains momentum. Observational evidence for neutron star kicks is substantial, yet limited for black hole natal kicks, and some proposed black hole formation scenarios result in […]
Kavli Affiliate: Anna Frebel | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Erin Kara, Claude Canizares, Deepto Chakrabarty | Summary: Evidence suggests that when compact objects such as black holes and neutron stars form, they may receive a “natal kick,” where the stellar remnant gains momentum. Observational evidence for neutron star kicks is substantial, […]
Kavli Affiliate: Erin Kara | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Erin Kara, Claude Canizares, Deepto Chakrabarty | Summary: Evidence suggests that when compact objects such as black holes and neutron stars form, they may receive a “natal kick,” where the stellar remnant gains momentum. Observational evidence for neutron star kicks is substantial, […]
Kavli Affiliate: Zhuo Li | First 5 Authors: Yan-Qiu Zhang, Hao-Xiang Lin, Shao-Lin Xiong, Zhuo Li, Ming-Yu Ge | Summary: Gamma-ray bursts (GRBs) are believed to launch relativistic jets, which generate prompt emission by internal processes, and produce long-lasting afterglows by driving external shocks into surrounding medium. However, how the jet powers the external shock […]
Kavli Affiliate: Zhuo Li | First 5 Authors: Yan-Qiu Zhang, Hao-Xiang Lin, Shao-Lin Xiong, Zhuo Li, Ming-Yu Ge | Summary: Gamma-ray bursts (GRBs) are believed to launch relativistic jets, which generate prompt emission by their internal processes and drive external shocks into surrounding medium, accounting for the long-lasting afterglow emission. However, how the jet powers […]
Kavli Affiliate: Linhua Jiang | First 5 Authors: Linhua Jiang, Zhiwei Pan, Jessica Nicole Aguilar, Steven Ahlen, Robert Blum | Summary: We present strong constraints on the spacetime variation of the fine-structure constant $alpha$ using the Dark Energy Spectroscopic Instrument (DESI). In this pilot work, we utilize $sim110,000$ galaxies with strong and narrow O III […]