Browsing by Author "Jarvis, Matt J."
Now showing items 1-6 of 6
-
Cosmological 3D Hi Gas Map with HETDEX Lyα Emitters and eBOSS QSOs at z = 2: IGM-Galaxy/QSO Connection and a ∼ 40-Mpc Scale Giant Hii Bubble Candidate
Jarvis, Matt J.; Mukae, Shiro; Ouchi, Masami (IOP Publishing, 2020)We present cosmological (30−400 Mpc) distributions of neutral hydrogen (H i) in the intergalactic medium (IGM) traced by Lyα emitters (LAEs) and QSOs at z = 2.1–2.5, selected with the data of the ongoing Hobby–Eberly ... -
Extragalactic magnetism with sofia (salsa legacy program). vii. a tomographic view of far-infrared and radio polarimetric observations through mhd simulations of galaxies
Martin-Alvarez, Sergio; Jarvis, Matt J.; Lopez-Rodriguez, Enrique (IOP Publishing, 2024)The structure of magnetic fields in galaxies remains poorly constrained, despite the importance of magnetism in the evolution of galaxies. Radio synchrotron and far-infrared (FIR) polarization and polarimetric observations ... -
First HETDEX Spectroscopic Determinations of Lyα and UV Luminosity Functions at z=2–3: Bridging a Gap between Faint AGNs and Bright Galaxies
Jarvis, Matt J. (The Astrophysical Journal, 2021)We present Lyα and ultraviolet (UV)-continuum luminosity functions (LFs) of galaxies and active galactic nuclei (AGNs) at z = 2.0–3.5 determined by the untargeted optical spectroscopic survey of the Hobby–Eberly Telescope ... -
A flexible method for estimating luminosity functions via Kernel Density Estimation
Jarvis, Matt J.; Yuan, Zunli; Wang, Jiancheng (IOP Publishing, 2020)We propose a flexible method for estimating luminosity functions (LFs) based on kernel density estimation (KDE), the most popular nonparametric density estimation approach developed in modern statistics, to overcome ... -
Measuring the HI mass function below the detection threshold
Pan, Hengxing; Jarvis, Matt J.; Santos, Mario G. (Royal Astronomical Society, 2020)We present a Bayesian stacking technique to directly measure the H I mass function (HIMF) and its evolution with redshift using galaxies formally below the nominal detection threshold. We generate galaxy samples over several ... -
Non-Gaussianity constraints using future radio continuum surveys and the multitracer technique
Camera, Stefano; Gomes, Zahra; Jarvis, Matt J. (Oxford University Press, 2019)Tighter constraints on measurements of primordial non-Gaussianity (PNG) will allow the differentiation of inflationary scenarios. The cosmic microwave background bispectrum – the standard method of measuring the local ...