Ultraviolet Extinction Sky Survey (UVESS): a mission concept for probing the interstellar medium in the Milky Way and Local Group galaxies

Joice Mathew; Andrew Battisti; Israel Vaughn; Shubhangi Jain; Rekhesh Mohan; Jayant Murthy

doi:10.1117/12.3020936

21 August 2024 Ultraviolet Extinction Sky Survey (UVESS): a mission concept for probing the interstellar medium in the Milky Way and Local Group galaxies

Joice Mathew, Andrew Battisti, Israel Vaughn, Shubhangi Jain, Rekhesh Mohan, Jayant Murthy

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130933K (2024) https://doi.org/10.1117/12.3020936
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The 2175 Å bump shows considerable variations in its strength, width, and central wavelength when observed along different sightlines in the Milky Way and other galaxies. These variations offer valuable insights into the composition, size distribution, and processing of interstellar dust grains along different sightlines. This paper introduces a mission concept called UVESS (Ultra Violet Extinction Sky Survey) aimed at exploring the composition of the interstellar medium (ISM) within both the Milky Way and nearby Local Group Galaxies by mapping the variation of UV extinction curve slopes and the 2175 Å feature across a majority of the sky to gain insights into the makeup of the ISM. Recent advancements in UV instrumentation and technologies pave the way for the development of high-throughput instruments in compact form factors. In this paper, we outline mission science goals and instrument concept tailored for a small satellite-based platform dedicated to the study of UV extinction.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Joice Mathew, Andrew Battisti, Israel Vaughn, Shubhangi Jain, Rekhesh Mohan, and Jayant Murthy "Ultraviolet Extinction Sky Survey (UVESS): a mission concept for probing the interstellar medium in the Milky Way and Local Group galaxies", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130933K (21 August 2024); https://doi.org/10.1117/12.3020936

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