Aldebaran b's temperate past uncovered in planet search data

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Aldebaran b's temperate past uncovered in planet search data. / Farr, Will M.; Pope, Benjamin J. S.; Davies, Guy R.; North, Thomas S. H.; White, Timothy R.; Barrett, Jim W.; Miglio, Andrea; Lund, Mikkel N.; Antoci, Victoria; Andersen, Mads Fredslund; Grundahl, Frank; Huber, Daniel.

In: The Astrophysical Journal, Vol. 865 , No. 2, L20, 01.10.2018.

Research output: Contribution to journalArticlepeer-review

Harvard

Farr, WM, Pope, BJS, Davies, GR, North, TSH, White, TR, Barrett, JW, Miglio, A, Lund, MN, Antoci, V, Andersen, MF, Grundahl, F & Huber, D 2018, 'Aldebaran b's temperate past uncovered in planet search data', The Astrophysical Journal, vol. 865 , no. 2, L20. https://doi.org/10.3847/2041-8213/aadfde

APA

Farr, W. M., Pope, B. J. S., Davies, G. R., North, T. S. H., White, T. R., Barrett, J. W., Miglio, A., Lund, M. N., Antoci, V., Andersen, M. F., Grundahl, F., & Huber, D. (2018). Aldebaran b's temperate past uncovered in planet search data. The Astrophysical Journal, 865 (2), [L20]. https://doi.org/10.3847/2041-8213/aadfde

Vancouver

Author

Farr, Will M. ; Pope, Benjamin J. S. ; Davies, Guy R. ; North, Thomas S. H. ; White, Timothy R. ; Barrett, Jim W. ; Miglio, Andrea ; Lund, Mikkel N. ; Antoci, Victoria ; Andersen, Mads Fredslund ; Grundahl, Frank ; Huber, Daniel. / Aldebaran b's temperate past uncovered in planet search data. In: The Astrophysical Journal. 2018 ; Vol. 865 , No. 2.

Bibtex

@article{feda10ad897f45b59a83e2e4d02a48fe,
title = "Aldebaran b's temperate past uncovered in planet search data",
abstract = "The nearby red giant Aldebaran is known to host a gas giant planetary companion from decades of ground-based spectroscopic radial velocity measurements. Using Gaussian Process-based Continuous Auto-Regressive Moving Average models, we show that these historic data also contain evidence of acoustic oscillations in the star itself, and verify this result with further dedicated ground-based spectroscopy using the SONG telescope and space-based photometry with the Kepler Space Telescope. From the frequency of these oscillations we determine the mass of Aldebaran to be 1.16 ± 0.07 M⊙, and note that this implies its planet will have been subject to insolation comparable to the Earth for some of the star's main sequence lifetime. Our approach to sparse, irregularly sampled time series astronomical observations has the potential to unlock asteroseismic measurements for thousands of stars in archival data, and push to lower-mass planets around red giant stars.",
keywords = "astro-ph.SR, astro-ph.EP, methods: data analysis, methods: statistical, planets and satellites: individual (Aldebaran b), stars: individual (Aldebaran), stars: oscillations (including pulsations), techniques: radial velocities",
author = "Farr, {Will M.} and Pope, {Benjamin J. S.} and Davies, {Guy R.} and North, {Thomas S. H.} and White, {Timothy R.} and Barrett, {Jim W.} and Andrea Miglio and Lund, {Mikkel N.} and Victoria Antoci and Andersen, {Mads Fredslund} and Frank Grundahl and Daniel Huber",
note = "24 pages, 7 figures (including appendices); submitted to ApJL; paper text, figures, data, and code at https://github.com/farr/Aldebaran",
year = "2018",
month = oct,
day = "1",
doi = "10.3847/2041-8213/aadfde",
language = "English",
volume = "865 ",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing Ltd",
number = "2",

}

RIS

TY - JOUR

T1 - Aldebaran b's temperate past uncovered in planet search data

AU - Farr, Will M.

AU - Pope, Benjamin J. S.

AU - Davies, Guy R.

AU - North, Thomas S. H.

AU - White, Timothy R.

AU - Barrett, Jim W.

AU - Miglio, Andrea

AU - Lund, Mikkel N.

AU - Antoci, Victoria

AU - Andersen, Mads Fredslund

AU - Grundahl, Frank

AU - Huber, Daniel

N1 - 24 pages, 7 figures (including appendices); submitted to ApJL; paper text, figures, data, and code at https://github.com/farr/Aldebaran

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The nearby red giant Aldebaran is known to host a gas giant planetary companion from decades of ground-based spectroscopic radial velocity measurements. Using Gaussian Process-based Continuous Auto-Regressive Moving Average models, we show that these historic data also contain evidence of acoustic oscillations in the star itself, and verify this result with further dedicated ground-based spectroscopy using the SONG telescope and space-based photometry with the Kepler Space Telescope. From the frequency of these oscillations we determine the mass of Aldebaran to be 1.16 ± 0.07 M⊙, and note that this implies its planet will have been subject to insolation comparable to the Earth for some of the star's main sequence lifetime. Our approach to sparse, irregularly sampled time series astronomical observations has the potential to unlock asteroseismic measurements for thousands of stars in archival data, and push to lower-mass planets around red giant stars.

AB - The nearby red giant Aldebaran is known to host a gas giant planetary companion from decades of ground-based spectroscopic radial velocity measurements. Using Gaussian Process-based Continuous Auto-Regressive Moving Average models, we show that these historic data also contain evidence of acoustic oscillations in the star itself, and verify this result with further dedicated ground-based spectroscopy using the SONG telescope and space-based photometry with the Kepler Space Telescope. From the frequency of these oscillations we determine the mass of Aldebaran to be 1.16 ± 0.07 M⊙, and note that this implies its planet will have been subject to insolation comparable to the Earth for some of the star's main sequence lifetime. Our approach to sparse, irregularly sampled time series astronomical observations has the potential to unlock asteroseismic measurements for thousands of stars in archival data, and push to lower-mass planets around red giant stars.

KW - astro-ph.SR

KW - astro-ph.EP

KW - methods: data analysis

KW - methods: statistical

KW - planets and satellites: individual (Aldebaran b)

KW - stars: individual (Aldebaran)

KW - stars: oscillations (including pulsations)

KW - techniques: radial velocities

U2 - 10.3847/2041-8213/aadfde

DO - 10.3847/2041-8213/aadfde

M3 - Article

VL - 865

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - L20

ER -