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IR STIG Seminar

Infrared Science and Technology Integration Group

DATE

Nov 04, 2024

TIME

3:00pm

COMMUNITY

IR STIG

TYPE

Seminar

The Infrared Milky Way: From the Two Micron Sky Survey to the Roman Galactic Plane Survey

Robert Benjamin (University of Wisconsin – Whitewater)

I will provide an overview of the stellar and star-formation content of the Milky Way Galaxy from an infrared perspective, starting with a historical overview of the infrared missions and ending with the current status of planning and future targets for the Roman Galactic Plane Survey. Approximately one-quarter of the available time during the prime (five year) mission of the Nancy Grace Roman Space Telescope will be available for General Astrophysics Survey, with the remainder of the time divided among three Core Community Surveys: the Galactic Bulge Time Domain Survey(GBTDS), the High Latitude Time Domain Survey (HLTDS), and the High Latitude Wide Area Survey (HLWAS). As the result of a call for “Early Definition Science,” a Roman Galactic Plane Survey was approved as the first General Astrophysics Survey to be community designed. Following a May 2024 call for white papers, science pitches, and self-nominations. The Definition Committee has been been meeting since early September and is currently discussing how to construct the survey to maximize the scientific return to the community; a preliminary design is anticipated by mid January 2025 with plans for community response and feedback shortly thereafter.

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An illustration of Sun-like star HD 181327 and its surrounding debris disk. The star is at top right. It is surrounded by a far larger debris disk that forms an incomplete ellpitical path and is cut off at right. There’s a huge cavity between the star and the disk. The debris disk is shown in shades of light gray. Toward the top and left, there are finer, more discrete points in a range of sizes. The disk appears hazier and smokier at the bottom. The star is bright white at center, with a hazy blue region around it. The background of space is black. The label Artist's Concept appears at lower left.