no code implementations • 24 Feb 2021 • Soheil Koushan, Simon P. Driver, Sabine Bellstedt, Luke J. Davies, Aaron S. G. Robotham, Claudia del P Lagos, Abdolhosein Hashemizadeh, Danail Obreschkow, Jessica E. Thorne, Malcolm Bremer, B. W. Holwerda, Andrew M. Hopkins, Matt J. Jarvis, Malgorzata Siudek, Rogier A. Windhorst
We present a revised measurement of the optical extragalactic background light (EBL), based on the contribution of resolved galaxies to the integrated galaxy light (IGL).
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
no code implementations • 17 Dec 2020 • Eliab D. Malefahlo, Matt J. Jarvis, Mario G. Santos, Sarah V. White, Nathan J. Adams, Rebecca A. A. Bowler
Beyond $z\sim 2$, we find that the SFG RLF exhibits a negative evolution ($L^*$ moves to lower luminosities) due to the decrease in low stellar-mass sources in our stellar mass-limited sample at high redshifts.
Astrophysics of Galaxies
1 code implementation • 12 Apr 2016 • Ibrahim A. Almosallam, Matt J. Jarvis, Stephen J. Roberts
The predictive variance of the model takes into account both the variance due to data density and photometric noise.
Instrumentation and Methods for Astrophysics I.2.6
no code implementations • 20 May 2015 • Ibrahim A. Almosallam, Sam N. Lindsay, Matt J. Jarvis, Stephen J. Roberts
The proposed framework reaches a mean absolute $\Delta z = 0. 0026(1+z_\textrm{s})$, over the redshift range of $0 \le z_\textrm{s} \le 2$ on the simulated data, and $\Delta z = 0. 0178(1+z_\textrm{s})$ over the entire redshift range on the SDSS DR12 survey, outperforming the standard ANNz used in the literature.
2 code implementations • 9 Mar 2015 • Jonathan T. L. Zwart, Mario Santos, Matt J. Jarvis
Measuring radio source counts is critical for characterizing new extragalactic populations, brings a wealth of science within reach and will inform forecasts for SKA and its pathfinders.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics