Red Limit Science Analysis Group (Red Limit SAG)

by | Nov 20, 2025 | Climate Change

Cosmic Origins

Science Analysis Group

The Cosmic Origins Program Office has formed the HWO Red Limit Science Analysis Group (SAG) to investigate the science and technology issues that bear upon the red-end of wavelength sensitivity for the observatory.

About Red Limit SAG

To Determine Red-Wavelength Limits Required to Pursue HWO Science Objectives

The Habitable Worlds Observatory (HWO) will be the next flagship mission of NASA Astrophysics capable of addressing fundamental questions concerning galaxy growth, cosmology, the evolution of elements, planetary systems, and more.

The wavelength coverage of this observatory will have important implications for the science cases. The goal of this SAG is to analyze the current science cases for HWO to determine the red-wavelength limits required to pursue the science objectives, how the near-infrared sensitivity affects these science cases, and to synthesize the science cases that call for near-infrared sensitivity.

Habitable Worlds Observatory about To Determine Red-Wavelength Limits Required to Pursue HWO Science Objectives

The SAG will clearly articulate the science that would be lost if this wavelength were not accessible due to design trades in HWO that forfeited this spectral wavelength range, and the technology and mission architecture considerations that bear upon the near-infrared sensitivity of the observatory.

The outcomes of the analysis will be communicated to Communicate to NASA and the astrophysics community through reports to the COPAG Executive Committee, Cosmic Origins IR Science and Technology Interest Group (IR STIG), the HWO Community Science and Instrument Team (CSIT), and the HWO Technology Maturation Project Office (HTMPO). In particular, this Science Analysis Group (SAG) will produce essential input for CSIT and HTMPO deliberations on the importance of near-infrared sensitivity for the goals of Habitable Worlds Observatory.

SAG Membership

Roberta PaladiniKyle CookBenne HolwerdaEstelle JaninSteven Finkelstein

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