A Speckle Interferometric Search for a Companion to the RR Lyrae Star UV Oct
Abstract
We obtained high-resolution, diffraction limited imaging of the candidate binary RR Lyrae UV Oct using Gemini-South/Zorro. We detect no companions between 0"1 and 1"2, with a contrast of Δm ∼ 5 mag, placing a mass constraint for any possible main sequence companion of m < 0.67M⊙.
- Publication:
-
Research Notes of the American Astronomical Society
- Pub Date:
- August 2020
- DOI:
- 10.3847/2515-5172/abb022
- Bibcode:
- 2020RNAAS...4..143S
- Keywords:
-
- RR Lyrae variable stars;
- Speckle interferometry;
- 1410;
- 1552