HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A

Logan A. Pearce; Jared R. Males; Sebastiaan Y. Haffert; Laird M. Close; Joseph D. Long; Avalon L. McLeod; Justin M. Knight; Alexander D. Hedglen; Alycia J. Weinberger; Olivier Guyon; Maggie Kautz; Kyle Van Gorkom; Jennifer Lumbres; Lauren Schatz; Alex Rodack; Victor Gasho; Jay Kueny; Warren Foster; Katie M. Morzinski; Philip M. Hinz

doi:10.1093/mnras/stad859

HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A

Logan A. Pearce, Jared R. Males, Sebastiaan Y. Haffert, Laird M. Close, Joseph D. Long, Avalon L. McLeod, Justin M. Knight, Alexander D. Hedglen, Alycia J. Weinberger, Olivier Guyon, Maggie Kautz, Kyle Van Gorkom, Jennifer Lumbres, Lauren Schatz, Alex Rodack, Victor Gasho, Jay Kueny, Warren Foster, Katie M. Morzinski, Philip M. Hinz

Research output: Contribution to journal › Article › peer-review

Abstract

We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2λ/D (240 mas) in L′ 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 arcsec with MagAO-X in 2022 April. 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 arcsec 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.

Original language	English (US)
Pages (from-to)	4775-4784
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	521
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stad859
State	Published - May 1 2023

Keywords

(stars:) binaries: visual
methods: data analysis
methods: observational
planets and satellites: detection
stars: statistics

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/mnras/stad859

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Pearce, L. A., Males, J. R., Haffert, S. Y., Close, L. M., Long, J. D., McLeod, A. L., Knight, J. M., Hedglen, A. D., Weinberger, A. J., Guyon, O., Kautz, M., Van Gorkom, K., Lumbres, J., Schatz, L., Rodack, A., Gasho, V., Kueny, J., Foster, W., Morzinski, K. M., & Hinz, P. M. (2023). HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A. Monthly Notices of the Royal Astronomical Society, 521(3), 4775-4784. https://doi.org/10.1093/mnras/stad859

Pearce, LA, Males, JR, Haffert, SY, Close, LM, Long, JD, McLeod, AL, Knight, JM, Hedglen, AD, Weinberger, AJ, Guyon, O, Kautz, M, Van Gorkom, K, Lumbres, J, Schatz, L, Rodack, A, Gasho, V, Kueny, J, Foster, W, Morzinski, KM & Hinz, PM 2023, 'HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A', Monthly Notices of the Royal Astronomical Society, vol. 521, no. 3, pp. 4775-4784. https://doi.org/10.1093/mnras/stad859

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title = "HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A",

abstract = "We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2λ/D (240 mas) in L′ 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 arcsec with MagAO-X in 2022 April. 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 arcsec 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.",

keywords = "(stars:) binaries: visual, methods: data analysis, methods: observational, planets and satellites: detection, stars: statistics",

author = "Pearce, {Logan A.} and Males, {Jared R.} and Haffert, {Sebastiaan Y.} and Close, {Laird M.} and Long, {Joseph D.} and McLeod, {Avalon L.} and Knight, {Justin M.} and Hedglen, {Alexander D.} and Weinberger, {Alycia J.} and Olivier Guyon and Maggie Kautz and {Van Gorkom}, Kyle and Jennifer Lumbres and Lauren Schatz and Alex Rodack and Victor Gasho and Jay Kueny and Warren Foster and Morzinski, {Katie M.} and Hinz, {Philip M.}",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2023",

month = may,

day = "1",

doi = "10.1093/mnras/stad859",

language = "English (US)",

volume = "521",

pages = "4775--4784",

journal = "Monthly Notices of the Royal Astronomical Society",

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TY - JOUR

T1 - HIP 67506 C

T2 - MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A

AU - Pearce, Logan A.

AU - Males, Jared R.

AU - Haffert, Sebastiaan Y.

AU - Close, Laird M.

AU - Long, Joseph D.

AU - McLeod, Avalon L.

AU - Knight, Justin M.

AU - Hedglen, Alexander D.

AU - Weinberger, Alycia J.

AU - Guyon, Olivier

AU - Kautz, Maggie

AU - Van Gorkom, Kyle

AU - Lumbres, Jennifer

AU - Schatz, Lauren

AU - Rodack, Alex

AU - Gasho, Victor

AU - Kueny, Jay

AU - Foster, Warren

AU - Morzinski, Katie M.

AU - Hinz, Philip M.

PY - 2023/5/1

Y1 - 2023/5/1

N2 - We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2λ/D (240 mas) in L′ 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 arcsec with MagAO-X in 2022 April. 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 arcsec 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.

AB - We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2λ/D (240 mas) in L′ 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 arcsec with MagAO-X in 2022 April. 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 arcsec 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.

KW - (stars:) binaries: visual

KW - methods: data analysis

KW - methods: observational

KW - planets and satellites: detection

KW - stars: statistics

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U2 - 10.1093/mnras/stad859

DO - 10.1093/mnras/stad859

M3 - Article

AN - SCOPUS:85160307854

SN - 0035-8711

VL - 521

SP - 4775

EP - 4784

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

HIP 67506 C: MagAO-X confirmation of a new low-mass stellar companion to HIP 67506 A

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