A smaller radius for the transiting exoplanet wasp-10b

John Asher Johnson, Joshua Nathan Winn, Nicole E. Cabrera, Joshua A. Carter

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

We present the photometry of WASP-10 during a transit of its short-period Jovian planet. We employed the novel point-spread function shaping capabilities of the Orthogonal Parallel Transfer Imaging Camera mounted on the UH 2.2 m telescope to achieve a photometric precision of 4.7 × 10-4 per 1.3 minute sample. With this new light curve, in conjunction with stellar evolutionary models, we improve on existing measurements of the planetary, stellar, and orbital parameters. We find a stellar radius R = 0.698 0.012 R and a planetary radius RP = 1.080 0.020 R Jup. The quoted errors do not include any possible systematic errors in the stellar evolutionary models. Our measurement improves the precision of the planet's radius by a factor of 4, and revises the previous estimate downward by 16% (2.5σ, where σ is the quadrature sum of the respective confidence limits). Our measured radius of WASP-10b is consistent with previously published theoretical radii for irradiated Jovian planets.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume692
Issue number2
DOIs
StatePublished - Jan 1 2009

Fingerprint

extrasolar planets
wasp
planet
radii
planets
stellar models
confidence limits
point spread functions
transit
quadratures
systematic errors
light curve
photometry
cameras
telescopes
orbitals
estimates

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Instrumentation: detectors
  • Planetary systems
  • Stars: individual (WASP-10)
  • Techniques: photometric

Cite this

Johnson, John Asher ; Winn, Joshua Nathan ; Cabrera, Nicole E. ; Carter, Joshua A. / A smaller radius for the transiting exoplanet wasp-10b. In: Astrophysical Journal. 2009 ; Vol. 692, No. 2.
@article{f4f2f483b42643138e3fd96bb841167c,
title = "A smaller radius for the transiting exoplanet wasp-10b",
abstract = "We present the photometry of WASP-10 during a transit of its short-period Jovian planet. We employed the novel point-spread function shaping capabilities of the Orthogonal Parallel Transfer Imaging Camera mounted on the UH 2.2 m telescope to achieve a photometric precision of 4.7 × 10-4 per 1.3 minute sample. With this new light curve, in conjunction with stellar evolutionary models, we improve on existing measurements of the planetary, stellar, and orbital parameters. We find a stellar radius R = 0.698 0.012 R and a planetary radius RP = 1.080 0.020 R Jup. The quoted errors do not include any possible systematic errors in the stellar evolutionary models. Our measurement improves the precision of the planet's radius by a factor of 4, and revises the previous estimate downward by 16{\%} (2.5σ, where σ is the quadrature sum of the respective confidence limits). Our measured radius of WASP-10b is consistent with previously published theoretical radii for irradiated Jovian planets.",
keywords = "Instrumentation: detectors, Planetary systems, Stars: individual (WASP-10), Techniques: photometric",
author = "Johnson, {John Asher} and Winn, {Joshua Nathan} and Cabrera, {Nicole E.} and Carter, {Joshua A.}",
year = "2009",
month = "1",
day = "1",
doi = "https://doi.org/10.1088/0004-637X/692/2/L100",
language = "English (US)",
volume = "692",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

A smaller radius for the transiting exoplanet wasp-10b. / Johnson, John Asher; Winn, Joshua Nathan; Cabrera, Nicole E.; Carter, Joshua A.

In: Astrophysical Journal, Vol. 692, No. 2, 01.01.2009.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A smaller radius for the transiting exoplanet wasp-10b

AU - Johnson, John Asher

AU - Winn, Joshua Nathan

AU - Cabrera, Nicole E.

AU - Carter, Joshua A.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We present the photometry of WASP-10 during a transit of its short-period Jovian planet. We employed the novel point-spread function shaping capabilities of the Orthogonal Parallel Transfer Imaging Camera mounted on the UH 2.2 m telescope to achieve a photometric precision of 4.7 × 10-4 per 1.3 minute sample. With this new light curve, in conjunction with stellar evolutionary models, we improve on existing measurements of the planetary, stellar, and orbital parameters. We find a stellar radius R = 0.698 0.012 R and a planetary radius RP = 1.080 0.020 R Jup. The quoted errors do not include any possible systematic errors in the stellar evolutionary models. Our measurement improves the precision of the planet's radius by a factor of 4, and revises the previous estimate downward by 16% (2.5σ, where σ is the quadrature sum of the respective confidence limits). Our measured radius of WASP-10b is consistent with previously published theoretical radii for irradiated Jovian planets.

AB - We present the photometry of WASP-10 during a transit of its short-period Jovian planet. We employed the novel point-spread function shaping capabilities of the Orthogonal Parallel Transfer Imaging Camera mounted on the UH 2.2 m telescope to achieve a photometric precision of 4.7 × 10-4 per 1.3 minute sample. With this new light curve, in conjunction with stellar evolutionary models, we improve on existing measurements of the planetary, stellar, and orbital parameters. We find a stellar radius R = 0.698 0.012 R and a planetary radius RP = 1.080 0.020 R Jup. The quoted errors do not include any possible systematic errors in the stellar evolutionary models. Our measurement improves the precision of the planet's radius by a factor of 4, and revises the previous estimate downward by 16% (2.5σ, where σ is the quadrature sum of the respective confidence limits). Our measured radius of WASP-10b is consistent with previously published theoretical radii for irradiated Jovian planets.

KW - Instrumentation: detectors

KW - Planetary systems

KW - Stars: individual (WASP-10)

KW - Techniques: photometric

UR - http://www.scopus.com/inward/record.url?scp=64849108753&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=64849108753&partnerID=8YFLogxK

U2 - https://doi.org/10.1088/0004-637X/692/2/L100

DO - https://doi.org/10.1088/0004-637X/692/2/L100

M3 - Article

VL - 692

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

ER -