Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Thierry Serafin Nadeau, Thierry Serafin Nadeau, , , | Summary: The Crab Pulsar is known to feature plasma lensing events known as echoes. These events show additional components in the pulse profile which are produced by signal that is deflected by ionized nebular material and are […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Qiaorong S. Yu, Qiaorong S. Yu, , , | Summary: In this study, we define the novel splashback depth $mathcalD$ and width $mathcalW$ to examine how the splashback features of dark matter haloes are affected by the physical properties of haloes themselves. We use the largest simulation […]
Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Tajan H. de Amorim, Tajan H. de Amorim, , , | Summary: With its two stellar eclipses and two disk attenuations per binary orbit, V658 Carinae stands out as the first clear eclipsing Be + sdOB system. This rare alignment offers a unique opportunity to probe […]
Kavli Affiliate: Eric D. Miller | First 5 Authors: Satoshi Eguchi, Satoshi Eguchi, , , | Summary: The X-Ray Imaging and Spectroscopy Mission (XRISM) is the seventh Japanese X-ray observatory whose development and operation are in collaboration with universities and research institutes in Japan, the United States, and Europe, including JAXA, NASA, and ESA. The […]
Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Calvin Leung, Calvin Leung, , , | Summary: Low redshift fast radio bursts (FRBs) provide robust measurements of the host-galaxy contribution to the dispersion measure (DM), which can constrain the circumgalactic medium (CGM) of the hosts. We curate a sample of 20 nearby FRBs with low […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yu Zhao, Yu Zhao, , , | Summary: The timing of cosmic reionization across Local Group (LG) analogues provides insights into their early histories and surrounding large-scale structure. Using the radiation-hydrodynamic simulation THESAN-1 and its dark matter-only counterpart THESAN-DARK-1, we track the reionization histories of all haloes, […]
Kavli Affiliate: Avi Shporer | First 5 Authors: David E. Shaw, David E. Shaw, , , | Summary: The eight-planet Kepler-90 system exhibits the greatest multiplicity of planets found to date. All eight planets are transiting and were discovered in photometry from the NASA Kepler primary mission. The two outermost planets, g ($P_g$ = 211 […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Avi Chen, Avi Chen, , , | Summary: Turbulence plays a critical role in regulating star formation in molecular clouds and is also observed in simulations of primordial halos that host Population III (Pop III) stars. The relative velocity between baryons and dark matter at the time […]
Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., J. Fernando Barbero G., , , | Summary: We analyze from a geometric perspective the Hamiltonian formulation of a recent modification of the Husain-Kuchavr model where, while preserving the connection as a dynamical variable, the other field is restricted to be the […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Teodora-Elena Bulichi, Teodora-Elena Bulichi, , , | Summary: High-redshift active galactic nuclei (AGN) have long been recognized as key probes of early black hole growth and galaxy evolution. However, modeling this population remains difficult due to the wide range of luminosities and black hole masses involved, and […]