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Pearce, Logan A; Males, Jared R; Haffert, Sebastiaan Y; Close, Laird M; Long, Joseph D; McLeod, Avalon L; Knight, Justin M; Hedglen, Alexander D; Weinberger, Alycia J; Guyon, Olivier; Kautz, Maggie; Kyle Van Gorkom; Lumbres, Jennifer; Schatz, Lauren; Rodack, Alex; Gasho, Victor; Kueny, Jay; Foster, Warren; Morzinski, Katie M; Hinz, Philip M
arXiv.org, 03/2023Paper, Journal Article
We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2\(\lambda\)/D (240~mas) in L\(^{\prime}\) in MagAO/Clio imaging using the binary differential imaging technique. Several additional indirect signals showed that the candidate signal merited follow-up: significant astrometric acceleration in Gaia DR3, Hipparcos-Gaia proper motion anomaly, and overluminosity compared to single main sequence stars. We confirmed the companion, HIP 67506 C, at 0.1" with MagAO-X in April, 2022. We characterized HIP 67506 C MagAO-X photometry and astrometry, and estimated spectral type K7-M2; we also re-evaluated HIP 67506 A in light of the close companion. Additionally we show that a previously identified 9" companion, HIP 67506 B, is a much further distant unassociated background star. We also discuss the utility of indirect signposts in identifying small inner working angle candidate companions.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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