The Hawaii Two-0 Survey (H20) is a 20 deg2 deep Subaru Hyper-SuprimeCam imaging & Keck DEIMOS spectroscopic survey of the two primary Euclid Deep Calibration Fields (NEP and EDFF).
Euclid Launch
The European Space Agency Euclid Mission expected to launch as early as July, 2023.
Catalogue Release
The first H20 data catalogue release planned for Fall, 2022.
Subaru
Hyper Suprime-Cam
Subaru Telescope is the 8.2-meter (320 in) flagship telescope of the National Astronomical Observatory of Japan.
Keck
DEIMOS/MOSFIRE
The twin 10-meter Keck Observatory telescopes are among the world’s most scientifically productive optical and infrared telescopes.
CFHT
MegaCam
The CFH Telescope is a 3.2-meter optical/infrared telescope that is a joint facility of Canada, France, and Hawaii.
H20 News
Upcoming Catalogue Release
Fall, 2022
The first H20 data catalogue is expected to be completed and released within the coming months.
NEP Coverage Nearing Completion
October, 2022
CFHT imaging at 100% completion, with HSC imaging and Keck spectroscopy at ~90% and 80% completion respectively.
H20 Overview Paper Submitted
September 27, 2022
“Euclid preparation. Cosmic Dawn Survey: The Hawaii 20-deg2 (H20) Survey Overview” (McPartland et al. 2022) submitted to the Euclid Consortium Editorial Board.
Grey Murphree’s 699-1 Project Completed
September 16, 2022
Grey’s project, “Measing Linear Galaxy Bias at High Redshift”, is completed and was successfully evaluated by the GROG.
2021 REU Project Presented at AAS
June 14 2022
Isabella Valdes’s 2021 REU project, “Analysis of ~1500 Massive High-Redshift Galaxies in the Hawaii Twenty Square Degree Survey”, presented at the Summer 2022 AAS conference.
Science Goals
Galaxy Evolution
Probe the assembly of massive galaxies by tracing the evolution of their stellar mass function with >500,000 galaxies at 3 < z < 6 and including several thousand at z > 6.
Stellar Mass Functions
Link the stellar mass of galaxies to their dark matter halos via clustering, for testing of cosmological models.
Dark Energy
Constrain the properties of dark energy using the non-linear power spectrum at high-redshift.
Galaxy Formation
Identify the earliest sites of galaxy formation and reionization, and spectroscopically confirm high-escape fraction candidates.
Quenching in the Early Universe
Identify and confirm the first galaxies to quench their star formation.