Astrophysics – Page 546 – Kavli Institute Pre-Print Publications

The stellar mass in and around isolated central galaxies: connections to the total mass distribution through galaxy-galaxy lensing in the Hyper Suprime-Cam survey

Posted by klaurent April 12, 2021Tokyo

Kavli Affiliate: Naoki Yasuda | First 5 Authors: Wenting Wang, Xiangchong Li, Jingjing Shi, Jiaxin Han, Naoki Yasuda | Summary: Using photometric galaxies from the HSC survey, we measure the stellar mass density profiles for satellite galaxies as a function of the projected distance, $r_p$, to isolated central galaxies (ICGs) selected from SDSS/DR7 spectroscopic galaxies […]

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Cosmological Evolution of Fermi-LAT Gamma-ray Blazars Using Novel Nonparametric Methods

Posted by klaurent April 10, 2021Stanford

Kavli Affiliate: Vahe Petrosian | First 5 Authors: Houdun Zeng, Vahé Petrosian, Tingfeng Yi, , | Summary: Multi-wavelength analyses of spectra of active galactic nuclei (AGNs) provide useful information on the physical processes in the accretion disk and jets of black holes. This, however, is limited to bright sources and may not represent the population […]

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Measurement of the Ionization Yield of Neutron-Induced Proton Recoils in Tetramethylsilane

Posted by klaurent April 10, 2021Stanford

Kavli Affiliate: Giorgio Gratta | First 5 Authors: Shuoxing Wu, Brian Lenardo, Giorgio Gratta, , | Summary: We report on a low energy measurement of the ionization yield in a Tetramethylsilane Time Projection Chamber (TPC) using 2.8 MeV neutrons from a deuterium-deuterium neutron generator. The proton recoil charge yield is measured at four different electric […]

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Correcting correlation functions for redshift-dependent interloper contamination

Posted by klaurent April 9, 2021Tokyo

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Daniel J. Farrow, Ariel G. Sánchez, Robin Ciardullo, Erin Mentuch Cooper, Dustin Davis | Summary: The construction of catalogues of a particular type of galaxy can be complicated by interlopers contaminating the sample. In spectroscopic galaxy surveys this can be due to the misclassification of an emission […]

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FastEMRIWaveforms: New tools for millihertz gravitational-wave data analysis

Posted by klaurent April 9, 2021MIT

Kavli Affiliate: Scott A. Hughes | First 5 Authors: Michael L. Katz, Alvin J. K. Chua, Lorenzo Speri, Niels Warburton, Scott A. Hughes | Summary: We present the FastEMRIWaveforms (FEW) package, a collection of tools to build and analyze extreme mass ratio inspiral (EMRI) waveforms. Here, we expand on the Physical Review Letter that introduced […]

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A Real Time Processing System for Big Data in Astronomy: Applications to HERA

Posted by klaurent April 8, 2021MIT

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Paul La Plante, Peter K. G. Williams, Matthew Kolopanis, Joshua S. Dillon, Adam P. Beardsley | Summary: As current- and next-generation astronomical instruments come online, they will generate an unprecedented deluge of data. Analyzing these data in real time presents unique conceptual and computational challenges, and […]

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On the size distribution of spots within sunspot groups

Posted by klaurent April 8, 2021Stanford

Kavli Affiliate: Robert Cameron | First 5 Authors: Sudip Mandal, Natalie A. Krivova, Robert Cameron, Sami K. Solanki, | Summary: Size distribution of sunspots provides key information about the generation and emergence processes of the solar magnetic field. Previous studies on the size distribution have primarily focused on either the whole group or individual spot […]

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The Tiny (g-2) Muon Wobble from Small-$μ$ Supersymmetry

Posted by Chicago

Kavli Affiliate: Marcela Carena | First 5 Authors: Sebastian Baum, Marcela Carena, Nausheen R. Shah, Carlos E. M. Wagner, | Summary: A new measurement of the muon anomalous magnetic moment has been reported by the Fermilab Muon g-2 collaboration and shows a $4.2sigma$ departure from the most precise and reliable calculation of this quantity in […]

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Muon $g-2$ in Gauge Mediation without SUSY CP Problem

Posted by klaurent April 7, 2021Tokyo

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Masahiro Ibe, Shin Kobayashi, Yuhei Nakayama, Satoshi Shirai, | Summary: We discuss gauge mediated supersymmetry breaking models which explain the observed muon anomalous magnetic moment and the Higgs boson mass simultaneously. The successful explanation requires the messenger sector which violates the relation motivated by the grand unification […]

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Warm Jupiters in TESS Full-Frame Images: A Catalog and Observed Eccentricity Distribution for Year 1

Posted by klaurent April 5, 2021MIT

Kavli Affiliate: Edward H. Morgan | First 5 Authors: Jiayin Dong, Chelsea X. Huang, Rebekah I. Dawson, Daniel Foreman-Mackey, Karen A. Collins | Summary: Warm Jupiters — defined here as planets larger than 6 Earth radii with orbital periods of 8–200 days — are a key missing piece in our understanding of how planetary systems […]

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