Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Quang H. Tran, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Elias K. Oakes | Summary: We determine the distance to the Sculptor Dwarf Spheroidal via three Population II stellar distance indicators: (a) the Tip of the Red Giant Branch (TRGB), (b) RR Lyrae variables […]
Kavli Affiliate: Misao Sasaki | First 5 Authors: Pisin Chen, Misao Sasaki, Dong-han Yeom, Junggi Yoon, | Summary: The information loss paradox remains unresolved ever since Hawking’s seminal discovery of black hole evaporation. In this essay, we revisit the entanglement entropy via Euclidean path integral (EPI) and allow for the branching of semi-classical histories during […]
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Dan Kondo, Robert McGehee, Tom Melia, Hitoshi Murayama, | Summary: We present a model of self-interacting dark matter based on QCD-like theories and inspired by the proximity of $a_0(980pm 20)$ to the $Kbar{K}(990)$ threshold. Dark matter is comprised of dark pions which self-scatter via the $sigma$ resonance […]
Kavli Affiliate: Feng Yuan | First 5 Authors: Yoshitaka Hatta, Bo-Wen Xiao, Feng Yuan, , | Summary: Inspired by a recent study of Iancu, Mueller and Triantafyllopoulos [1] and earlier papers by Golec-Biernat and Wusthoff [2,3], we propose semi-inclusive diffractive deep inelastic scattering (SIDDIS) to investigate the gluon tomography in the nucleon and nuclei at […]
Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Joshua J. Ziegler, Thomas D. P. Edwards, Anna M. Suliga, Irene Tamborra, Shunsaku Horiuchi | Summary: We explore the assumption, widely used in many astrophysical calculations, that the stellar initial mass function (IMF) is universal across all galaxies. By considering both a canonical Salpeter-like IMF and a […]
Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Martti H. K. Kristiansen, Saul A. Rappaport, Andrew M. Vanderburg, Thomas L. Jacobs, Hans Martin Schwengeler | Summary: This article presents the history of the Visual Survey Group (VSG) – a Professional-Amateur (Pro-Am) collaboration within the field of astronomy working on data from several space missions […]
Kavli Affiliate: Andrew M. Vanderburg | First 5 Authors: Martti H. K. Kristiansen, Saul A. Rappaport, Andrew M. Vanderburg, Thomas L. Jacobs, Hans Martin Schwengeler | Summary: This article presents the history of the Visual Survey Group (VSG) – a Professional-Amateur (Pro-Am) collaboration within the field of astronomy working on data from several space missions […]
Kavli Affiliate: Luis C. Ho | First 5 Authors: Bethan A. Williams, Daniel L. Walker, Steven N. Longmore, A. T. Barnes, Cara Battersby | Summary: Young massive clusters (YMCs) are compact ($lesssim$1 pc), high-mass (>10${}^4$ M${}_{odot}$) stellar systems of significant scientific interest. Due to their rarity and rapid formation, we have very few examples of […]
Kavli Affiliate: Pau Amaro Seoane | First 5 Authors: Sebastiano von Fellenberg, Stefan Gillessen, Julia Stadler, Michi Bauböck, Reinhard Genzel | Summary: We present a large ${sim 30" times 30"}$ spectroscopic survey of the Galactic Center using the SINFONI IFU at the VLT. Combining observations of the last two decades we compile spectra of over […]