Kavli Affiliate: Nickolay Y. Gnedin | First 5 Authors: Huanqing Chen, Nickolay Y. Gnedin, , , | Summary: The matter density field at $zsim 6$ is very challenging to probe. One of the traditional probes of the low density IGM that works successfully at lower redshifts is the Lyman-alpha forest in quasar spectra. However, at […]
Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Masahiro Kawasaki, Hiromasa Nakatsuka, , , | Summary: The recent report of NANOGrav is gathering attention since its signal can be explained by the stochastic gravitational waves (GWs) with $Omega_{rm GW}sim 10^{-9}$ at $fsim 10^{-8}$Hz. The PBH formation scenario is one of the candidates for the NANOGrav […]
Kavli Affiliate: Ulrich Sperhake | First 5 Authors: Miren Radia, Ulrich Sperhake, Emanuele Berti, Robin Croft, | Summary: The radiation of linear momentum imparts a recoil (or "kick") to the center of mass of a merging black hole binary system. Recent numerical relativity calculations have shown that eccentricity can lead to an approximate 25% increase […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Nickolas Kokron, Joseph DeRose, Shi-Fan Chen, Martin White, Risa H. Wechsler | Summary: We implement a model for the two-point statistics of biased tracers that combines dark matter dynamics from $N$-body simulations with an analytic Lagrangian bias expansion. Using Aemulus, a suite of $N$-body simulations built […]
Kavli Affiliate: Sven C. Herrmann | First 5 Authors: Adam Coogan, Alexander Moiseev, Logan Morrison, Stefano Profumo, Matthew G. Baring | Summary: We outline the science opportunities in the areas of searches for dark matter and new physics offered by a proposed future MeV gamma-ray telescope, the Galactic Explorer with a Coded Aperture Mask Compton […]
Kavli Affiliate: Jeffrey J. McMahon | First 5 Authors: Joseph E. Golec, Jeffrey J. McMahon, Aamir M. Ali, Grace E. Chesmore, Leah Cooperrider | Summary: The Simons Observatory (SO) will be a cosmic microwave background (CMB) survey experiment with three small-aperture telescopes and one large-aperture telescope, which will observe from the Atacama Desert in Chile. […]
Kavli Affiliate: Roger W. Romani | First 5 Authors: Roger W. Romani, D. Kandel, Alexei V. Filippenko, Thomas G. Brink, WeiKang Zheng | Summary: Keck-telescope spectrophotometry of the companion of PSR J1810+1744 shows a flat, but asymmetric light-curve maximum and a deep, narrow minimum. The maximum indicates strong gravity darkening near the L_1 point, along […]
Kavli Affiliate: Huawei Zhang | First 5 Authors: Yang Huang, Haibo Yuan, Timothy C. Beers, Huawei Zhang, | Summary: We present an independent examination of the parallax zero-point of the Third Gaia Early Data Release (hereafter EDR3), using the LAMOST primary red clump (PRC) stellar sample. A median parallax offset of around $26 mu$as, slightly […]
Kavli Affiliate: Keith L. Thompson, Chao-Lin Kuo | First 5 Authors: Maria Salatino, Jason E. Austermann, Keith L. Thompson, Peter A. R. Ade, Xiran Bai | Summary: Ali CMB Polarization Telescope (AliCPT-1) is the first CMB degree-scale polarimeter to be deployed on the Tibetan plateau at 5,250m above sea level. AliCPT-1 is a 90/150 GHz […]
Kavli Affiliate: Keith L. Thompson | First 5 Authors: Maria Salatino, Jason E. Austermann, Keith L. Thompson, Peter A. R. Ade, Xiran Bai | Summary: Ali CMB Polarization Telescope (AliCPT-1) is the first CMB degree-scale polarimeter to be deployed on the Tibetan plateau at 5,250m above sea level. AliCPT-1 is a 90/150 GHz 72 cm […]