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: Astrophysical Journal Letters, Vol. 865, No. 2, 20, 01.10.2018.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-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', Astrophysical Journal Letters, vol. 865, no. 2, 20. 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., ... Huber, D. (2018). Aldebaran b's Temperate Past Uncovered in Planet Search Data. Astrophysical Journal Letters, 865(2), [20]. https://doi.org/10.3847/2041-8213/aadfde

CBE

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. Astrophysical Journal Letters. 865(2). https://doi.org/10.3847/2041-8213/aadfde

MLA

Farr, Will M. et al. "Aldebaran b's Temperate Past Uncovered in Planet Search Data". Astrophysical Journal Letters. 2018. 865(2). https://doi.org/10.3847/2041-8213/aadfde

Vancouver

Farr WM, Pope BJS, Davies GR, North TSH, White TR, Barrett JW et al. Aldebaran b's Temperate Past Uncovered in Planet Search Data. Astrophysical Journal Letters. 2018 Oct 1;865(2). 20. https://doi.org/10.3847/2041-8213/aadfde

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: Astrophysical Journal Letters. 2018 ; Vol. 865, No. 2.

Bibtex

@article{8d773319851543dbae42bbb4147e0e34,
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-circle dot, 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 = "methods: data analysis, methods: statistical, planets and satellites: individual (Aldebaran b), stars: individual (Aldebaran), stars: oscillations (including pulsations), techniques: radial velocities, RADIAL-VELOCITY VARIATIONS, LONG SECONDARY PERIODS, RED GIANTS, SPACED DATA, STARS, DIAMETER, LINE, ASTEROSEISMOLOGY, CONFIRMATION, VARIABILITY",
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",
year = "2018",
month = "10",
day = "1",
doi = "10.3847/2041-8213/aadfde",
language = "English",
volume = "865",
journal = "The Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP 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

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-circle dot, 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-circle dot, 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 - 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

KW - RADIAL-VELOCITY VARIATIONS

KW - LONG SECONDARY PERIODS

KW - RED GIANTS

KW - SPACED DATA

KW - STARS

KW - DIAMETER

KW - LINE

KW - ASTEROSEISMOLOGY

KW - CONFIRMATION

KW - VARIABILITY

U2 - 10.3847/2041-8213/aadfde

DO - 10.3847/2041-8213/aadfde

M3 - Journal article

VL - 865

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

SN - 2041-8205

IS - 2

M1 - 20

ER -