Overview and status of EXCLAIM, the experiment for cryogenic large-aperture intensity mapping

Posted by klaurent Chicago

Kavli Affiliate: Jeffrey McMahon | First 5 Authors: Giuseppe Cataldo, Peter Ade, Christopher Anderson, Alyssa Barlis, Emily Barrentine | Summary: The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a balloon-borne far-infrared telescope that will survey star formation history over cosmological time scales to improve our understanding of why the star formation rate declined at […]


Continue.. Overview and status of EXCLAIM, the experiment for cryogenic large-aperture intensity mapping

Thermonuclear X-ray Bursts with late secondary peaks observed from 4U 1608-52

Posted by klaurent MIT

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Tolga Guver, Tugba Boztepe, Ersin Gogus, Manoneeta Chakraborty, Tod E. Strohmayer | Summary: We report the temporal and spectral analysis of three thermonuclear X-ray bursts from 4U 1608-52, observed by the Neutron Star Interior Composition Explorer (NICER) during and just after the outburst observed from the source […]


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Recovering Density Fields inside Quasar Proximity Zones at $zsim 6$

Posted by klaurent Chicago

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 […]


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Gravitational waves from type II axion-like curvaton model and its implication for NANOGrav result

Posted by klaurent Tokyo

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 […]


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Anomalies in the gravitational recoil of eccentric black-hole mergers with unequal mass ratios

Posted by klaurent Cambridge

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 […]


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The cosmology dependence of galaxy clustering and lensing from a hybrid $N$-body-perturbation theory model

Posted by klaurent Stanford

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 […]


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Hunting for Dark Matter and New Physics with GECCO

Posted by klaurent Stanford

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 […]


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Design and Fabrication of Metamaterial Anti-Reflection Coatings for the Simons Observatory

Posted by klaurent Chicago

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. […]


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PSR J1810+1744: Companion Darkening and a Precise High Neutron Star Mass

Posted by klaurent Stanford

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 […]


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The Parallax Zero-Point of Gaia Early Data Release 3 from LAMOST Primary Red Clump Stars

Posted by klaurent Peking

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 […]


Continue.. The Parallax Zero-Point of Gaia Early Data Release 3 from LAMOST Primary Red Clump Stars