Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry

Daniel Huber; Michael J. Ireland; Timothy R. Bedding; Steve B. Howell; Vicente Maestro; Antoine Ḿerand; Peter G. Tuthill; Timothy R. White; Christopher D. Farrington; P. J. Goldfinger; Harold A. McAlister; Gail H. Schaefer; Judit Sturmann; Laszlo Sturmann; Theo A. ten Brummelaar; Nils H. Turner

doi:10.1111/j.1745-3933.2012.01242.x

Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry

Daniel Huber^*, Michael J. Ireland, Timothy R. Bedding, Steve B. Howell, Vicente Maestro, Antoine Ḿerand, Peter G. Tuthill, Timothy R. White, Christopher D. Farrington, P. J. Goldfinger, Harold A. McAlister, Gail H. Schaefer, Judit Sturmann, Laszlo Sturmann, Theo A. ten Brummelaar, Nils H. Turner

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the Precision Astronomical Visible Observations (PAVO) beam combiner at the Center for High Angular Resolution Astronomy (CHARA) Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 mas (~0.1-113 au) and contrasts <3.5 mag. This result supports the validation of the 1.6R⊕ exoplanet Kepler-21b by Howell et al. and complements the constraints set by adaptive optics imaging, speckle interferometry and radial-velocity observations to rule out false positives due to stellar companions. We conclude that long-baseline interferometry has strong potential to validate transiting extrasolar planets, particularly for future projects aimed at brighter stars and for host stars where radial-velocity follow-up is not available.

Original language	English
Pages (from-to)	L16-L20
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	423
Issue number	1
DOIs	https://doi.org/10.1111/j.1745-3933.2012.01242.x
Publication status	Published - Jun 2012

Access to Document

10.1111/j.1745-3933.2012.01242.x

Cite this

Huber, D., Ireland, M. J., Bedding, T. R., Howell, S. B., Maestro, V., Ḿerand, A., Tuthill, P. G., White, T. R., Farrington, C. D., Goldfinger, P. J., McAlister, H. A., Schaefer, G. H., Sturmann, J., Sturmann, L., ten Brummelaar, T. A., & Turner, N. H. (2012). Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry. Monthly Notices of the Royal Astronomical Society: Letters, 423(1), L16-L20. https://doi.org/10.1111/j.1745-3933.2012.01242.x

@article{cc2d5b3b9da8400195e09655f514cd41,

title = "Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry",

abstract = "We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the Precision Astronomical Visible Observations (PAVO) beam combiner at the Center for High Angular Resolution Astronomy (CHARA) Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 mas (~0.1-113 au) and contrasts <3.5 mag. This result supports the validation of the 1.6R⊕ exoplanet Kepler-21b by Howell et al. and complements the constraints set by adaptive optics imaging, speckle interferometry and radial-velocity observations to rule out false positives due to stellar companions. We conclude that long-baseline interferometry has strong potential to validate transiting extrasolar planets, particularly for future projects aimed at brighter stars and for host stars where radial-velocity follow-up is not available.",

author = "Daniel Huber and Ireland, {Michael J.} and Bedding, {Timothy R.} and Howell, {Steve B.} and Vicente Maestro and Antoine Ḿerand and Tuthill, {Peter G.} and White, {Timothy R.} and Farrington, {Christopher D.} and Goldfinger, {P. J.} and McAlister, {Harold A.} and Schaefer, {Gail H.} and Judit Sturmann and Laszlo Sturmann and {ten Brummelaar}, {Theo A.} and Turner, {Nils H.}",

year = "2012",

month = jun,

doi = "10.1111/j.1745-3933.2012.01242.x",

language = "English",

volume = "423",

pages = "L16--L20",

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

issn = "1745-3933",

publisher = "Oxford University Press",

number = "1",

}

Huber, D, Ireland, MJ, Bedding, TR, Howell, SB, Maestro, V, Ḿerand, A, Tuthill, PG, White, TR, Farrington, CD, Goldfinger, PJ, McAlister, HA, Schaefer, GH, Sturmann, J, Sturmann, L, ten Brummelaar, TA & Turner, NH 2012, 'Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry', Monthly Notices of the Royal Astronomical Society: Letters, vol. 423, no. 1, pp. L16-L20. https://doi.org/10.1111/j.1745-3933.2012.01242.x

TY - JOUR

T1 - Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry

AU - Huber, Daniel

AU - Ireland, Michael J.

AU - Bedding, Timothy R.

AU - Howell, Steve B.

AU - Maestro, Vicente

AU - Ḿerand, Antoine

AU - Tuthill, Peter G.

AU - White, Timothy R.

AU - Farrington, Christopher D.

AU - Goldfinger, P. J.

AU - McAlister, Harold A.

AU - Schaefer, Gail H.

AU - Sturmann, Judit

AU - Sturmann, Laszlo

AU - ten Brummelaar, Theo A.

AU - Turner, Nils H.

PY - 2012/6

Y1 - 2012/6

N2 - We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the Precision Astronomical Visible Observations (PAVO) beam combiner at the Center for High Angular Resolution Astronomy (CHARA) Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 mas (~0.1-113 au) and contrasts <3.5 mag. This result supports the validation of the 1.6R⊕ exoplanet Kepler-21b by Howell et al. and complements the constraints set by adaptive optics imaging, speckle interferometry and radial-velocity observations to rule out false positives due to stellar companions. We conclude that long-baseline interferometry has strong potential to validate transiting extrasolar planets, particularly for future projects aimed at brighter stars and for host stars where radial-velocity follow-up is not available.

AB - We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the Precision Astronomical Visible Observations (PAVO) beam combiner at the Center for High Angular Resolution Astronomy (CHARA) Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 mas (~0.1-113 au) and contrasts <3.5 mag. This result supports the validation of the 1.6R⊕ exoplanet Kepler-21b by Howell et al. and complements the constraints set by adaptive optics imaging, speckle interferometry and radial-velocity observations to rule out false positives due to stellar companions. We conclude that long-baseline interferometry has strong potential to validate transiting extrasolar planets, particularly for future projects aimed at brighter stars and for host stars where radial-velocity follow-up is not available.

UR - http://www.scopus.com/inward/record.url?scp=84868131076&partnerID=8YFLogxK

U2 - 10.1111/j.1745-3933.2012.01242.x

DO - 10.1111/j.1745-3933.2012.01242.x

M3 - Article

AN - SCOPUS:84868131076

SN - 1745-3933

VL - 423

SP - L16-L20

JO - Monthly Notices of the Royal Astronomical Society: Letters

JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

ER -

Validation of the exoplanet Kepler-21b using PAVO/CHARA long-baseline interferometry

Abstract

Access to Document

Other files and links

Fingerprint

Cite this