Kavli Affiliate: W. L. Kimmy Wu | First 5 Authors: Daniel Green, Joshua T. Ruderman, Benjamin R. Safdi, Jessie Shelton, Ana Achúcarro | Summary: We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. This Report is prepared as the TF09 "Astrophysics and Cosmology" […]
Kavli Affiliate: Grzegorz M. Madejski | First 5 Authors: Ioannis Liodakis, Alan P. Marscher, Iván Agudo, Andrei V. Berdyugin, Maria I. Bernardos | Summary: Blazars are active galactic nuclei that launch collimated, powerful jets of magnetized relativistic plasma. Their primary jet, whose emission typically spans from low-frequency radio to very high-energy ($gtrsim0.1$ TeV) $gamma$-rays (Blandford […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: David J. Schlegel, Juna A. Kollmeier, Greg Aldering, Stephen Bailey, Charles Baltay | Summary: In this white paper, we present the MegaMapper concept. The MegaMapper is a proposed ground-based experiment to measure Inflation parameters and Dark Energy from galaxy redshifts at $2<z<5$. In order to achieve […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: David J. Schlegel, Simone Ferraro, Greg Aldering, Charles Baltay, Segev BenZvi | Summary: In this white paper, we present an experimental road map for spectroscopic experiments beyond DESI. DESI will be a transformative cosmological survey in the 2020s, mapping 40 million galaxies and quasars and capturing […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Ethan O. Nadler, Philip Mansfield, Yunchong Wang, Xiaolong Du, Susmita Adhikari | Summary: We present Symphony, a compilation of $262$ cosmological, cold dark matter-only zoom-in simulations spanning four decades of host halo mass, from $10^{11}~M_{mathrm{odot}}$ to $10^{15}~M_{mathrm{odot}}$. This compilation includes three existing simulation suites at the […]
Kavli Affiliate: Bruce Macintosh | First 5 Authors: Brittany E. Miles, Beth A. Biller, Polychronis Patapis, Kadin Worthen, Emily Rickman | Summary: We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is a $<$20 M$_mathrm{Jup}$ widely separated ($sim$8arcsec, a = 150 au), young, planetary-mass companion that shares photometric colors […]
Kavli Affiliate: Bruce Macintosh | First 5 Authors: Aarynn L. Carter, Sasha Hinkley, Jens Kammerer, Andrew Skemer, Beth A. Biller | Summary: We present JWST Early Release Science (ERS) coronagraphic observations of the super-Jupiter exoplanet, HIP 65426 b, with the Near-Infrared Camera (NIRCam) from 2-5 $mu$m, and with the Mid-Infrared Instrument (MIRI) from 11-16 $mu$m. […]
Kavli Affiliate: Bruce Macintosh | First 5 Authors: Aarynn L. Carter, Sasha Hinkley, Jens Kammerer, Andrew Skemer, Beth A. Biller | Summary: We present JWST Early Release Science (ERS) coronagraphic observations of the super-Jupiter exoplanet, HIP 65426 b, with the Near-Infrared Camera (NIRCam) from 2-5 $mu$m, and with the Mid-Infrared Instrument (MIRI) from 11-16 $mu$m. […]
Kavli Affiliate: Kent Irwin | First 5 Authors: Didier Barret, Vincent Albouys, Jan-Willem den Herder, Luigi Piro, Massimo Cappi | Summary: The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile observatory designed to address the Hot […]
Kavli Affiliate: Arlene Aleman | First 5 Authors: Arlene Aleman, Bruce Macintosh, Mary Anne Limbach, Mark Marley, Jeffrey Chilcote | Summary: Direct imaging characterization of extrasolar planets is often done at low spectral resolution. We model the spectrograph for the Gemini Planet Imager upgrade (GPI 2.0) and assess the instrument’s potential for allowing observers to […]