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Amanda Wasserman Pre-Lim - "Uncovering Transient Physics and Optimizing Cosmological Inference with a Recommendation Engine for Rapid-Response Spectroscopy"

Event Type
Other
Sponsor
Department of Astronomy
Location
Atlas Room
Date
Apr 3, 2023   11:00 am  
Speaker
Amanda Wasserman
Views
3
Originating Calendar
Astronomy Department Events Calendar

The Vera Rubin Observatory’s (VRO) Legacy Survey of Space and Time (LSST) will observe over 10^6 transients per year, increasing the number of yearly discovered transients by a factor of 100 (Zˇeljko Ivezi ́c et al. 2019). With scarce spectroscopic resources, an expected 0.1% will be followed up spectroscopically (Hsu et al. 2022), despite being necessary for probing supernova progenitor physics and accurately estimating cosmological parameters. Due to the incoming immense quantity of transient sources, we require a method to determine what subset of the discovered supernovae should be investigated further. I propose adapting and implementing the Recommendation System for Spectroscopic Follow-up (RESSPECT) to select the most scientifically useful supernovae (Ishida et al. 2018; Kennamer et al. 2020). Additionally, we require the means to follow up on these supernovae. In preparation for LSST, I have triggered observations using the Gemini Multi-Object Spectrograph on transients discovered by precursor wide-field surveys. I will describe my previous, current, and proposed work to rapidly follow up on interesting transient objects and use their spectra to uncover transient physics and optimize cosmological inference by creating a purer training sample of type Ia supernovae. 

https://illinois.zoom.us/j/4713660438?pwd=U3E5ZVRNenlteVB0Ujh5VGRaNXFvUT09

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