Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Chao-Jun Feng, Towe Wang, , | Summary: To explore the feasibility of utilizing black hole images to test the cosmological constant, we have developed a comprehensive analytical method for simulating images of Kerr-de Sitter black holes illuminated by equatorial thin accretion disks. Our findings indicate […]
Kavli Affiliate: Eric D. Miller, Ralf K. Heilmann | First 5 Authors: Hans Moritz Günther, Peter Cheimets, Eric D. Miller, Casey DeRoo, Randall K. Smith | Summary: Arcus is a concept for a probe class mission to deliver high-resolution FUV and X-ray spectroscopy. For X-rays, it combines cost-effective silicon pore optics (SPO) with high-throughput critical-angle […]
Kavli Affiliate: Jia Liu | First 5 Authors: Zitong Xu, Xiaolin Ma, Kai Wei, Yuxuan He, Xing Heng | Summary: Experiments aimed at detecting ultralight dark matter typically rely on resonant effects, which are sensitive to the dark matter mass that matches the resonance frequency. In this study, we investigate the nucleon couplings of ultralight […]
Kavli Affiliate: Jia Liu | First 5 Authors: Zitong Xu, Xiaolin Ma, Kai Wei, Yuxuan He, Xing Heng | Summary: Experiments aimed at detecting ultralight dark matter typically rely on resonant effects, which are sensitive to the dark matter mass that matches the resonance frequency. In this study, we investigate the nucleon couplings of ultralight […]
Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Ziyang Chen, Drew Jamieson, Eiichiro Komatsu, Sownak Bose, Klaus Dolag | Summary: The statistics of thermal gas pressure are a new and promising probe of cosmology and astrophysics. The large-scale cross-correlation between galaxies and the thermal Sunyaev-Zeldovich effect gives the bias-weighted mean electron pressure, $langle b_mathrm{h}P_erangle$. In […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Roger W. Romani, Josephine Wong, Niccolo Di Lalla, Nicola Omodei, Fei Xie | Summary: We describe IXPE polarization observations of the Pulsar Wind Nebula (PWN) MSH15-52, the `Cosmic Hand’. We find X-ray polarization across the PWN, with B field vectors generally aligned with filamentary X-ray structures. […]
Kavli Affiliate: Herman L. Marshall | First 5 Authors: Alexandra Veledina, Fabio Muleri, Michal Dovciak, Juri Poutanen, Ajay Ratheesh | Summary: We report the first detection of the X-ray polarization of the bright transient Swift J1727.8-1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when […]
Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Vasily Belokurov, Andrey Kravtsov, , , | Summary: We present a new scheme for the classification of the in-situ and accreted globular clusters (GCs). The scheme uses total energy $E$ and $z$-component of the orbital angular momentum and is calibrated using [Al/Fe] abundance ratio. We demonstrate that […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yunwei Deng, Hui Li, Rahul Kannan, Aaron Smith, Mark Vogelsberger | Summary: Modelling galaxy formation in hydrodynamic simulations has increasingly adopted various radiative transfer methods to account for photoionization feedback from young massive stars. However, the evolution of HII regions around stars begins in dense star-forming clouds […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yunwei Deng, Hui Li, Rahul Kannan, Aaron Smith, Mark Vogelsberger | Summary: Modelling galaxy formation in hydrodynamic simulations has increasingly adopted various radiative transfer methods to account for photoionization feedback from young massive stars. However, the evolution of HII regions around stars begins in dense star-forming clouds […]