Star Formation Across Cosmic Time (SFACT) survey
Abstract
SFACT (Star Formation Across Cosmic Time) is a novel large-scale survey designed to detect emission-line galaxies in a range of redshift windows. These data can be used to study star formation rates at multiple epochs simultaneously. Using the WIYN 3.5m telescope, this survey detects thousands of emission-line galaxies at nine distinct redshift windows up to z=1. It does this by targeting the Hα (λ6563), [OII] (λ3727), and [OIII] (λ5007) emission lines with three custom narrowband filters; additional filters are planned that will extend the survey to higher redshifts. Images are also taken with r, i, and g broadband filters; all six images are combined to create deep images of each survey field. A custom pipeline has been developed to identify and measure objects of interest, resulting in a uniform selection of candidates across all narrowband filters. Spectroscopic follow-up is also performed to confirm detections as emission-line galaxies. SFACT has detected objects ranging from HII regions in nearby galaxies to distant compact galaxies to quasars. My dissertation work includes analysis of the SFACT data in order to study star formation rate densities of galaxies across all nine redshift windows. I will be presenting preliminary results derived from our earliest survey fields.
- Publication:
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American Astronomical Society Meeting Abstracts
- Pub Date:
- January 2023
- Bibcode:
- 2023AAS...24142704S