JWST Observations of RR Lyrae in Leo P

Name: JWST Observations of RR Lyrae in Leo P
Uploaded: 2026-10-20T10:02:51.742955+00:00
Duration: 249 s
Description: Researchers used co-spatial HST and JWST observations of RR Lyrae stars in Leo P to test if JWST could provide distance measurements using established HST methods. They found consistent results, yielding a distance modulus of $\mu=26.01 \pm 0.04$ (1.60 $\pm$ 0.03 Mpc). The study suggests Leo P likely falls in the Oosterhoff gap, demonstrating JWST's potential for RR Lyrae studies.

Researchers used co-spatial HST and JWST observations of RR Lyrae stars in Leo P to test if JWST could provide distance measurements using established HST methods. They found consistent results, yielding a distance modulus of $\mu=26.01 \pm 0.04$ (1.60 $\pm$ 0.03 Mpc). The study suggests Leo P likely falls in the Oosterhoff gap, demonstrating JWST's potential for RR Lyrae studies.

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