Hubble space telescope time-series photometry of the transiting planet of HD 209458

Timothy M. Brown, David Charbonneau, Ronald L. Gilliland, Robert W. Noyes, Adam Burrows

Research output: Contribution to journalArticle

413 Citations (Scopus)

Abstract

We have observed four transits of the planet of HD 209458 using the STIS spectrograph on the Hubble Space Telescope (HST). Summing the recorded counts over wavelength between 582 and 638 nm yields a photometric time series with 80 s time sampling and relative precision of about 1.1 × 10-4 per sample. The folded light curve can be fitted within observational errors using a model consisting of an opaque circular planet transiting a limb-darkened stellar disk. In this way we estimate the planetary radius Rp = 1.347 ± 0.060 RJup, the orbital inclination i = 86°.6 ± 0°.14, the stellar radius R* = 1.146 ± 0.050 R⊙, and one parameter describing the stellar limb darkening. Our estimated radius is smaller than those from earlier studies but is consistent within measurement errors and also with theoretical estimates of the radii of irradiated Jupiter-like planets. Satellites or rings orbiting the planet would, if large enough, be apparent from distortions of the ligh: curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R⊕ and 3 M⊕, respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric precision attained in this experiment confirms the feasibility of photometric detection of Earth-sized planets circling Sun-like stars.

Original languageEnglish (US)
Pages (from-to)699-709
Number of pages11
JournalAstrophysical Journal
Volume552
Issue number2 PART 1
DOIs
StatePublished - May 10 2001

Fingerprint

Hubble Space Telescope
photometry
planets
planet
time series
radii
limb
transit
rings
limb darkening
Jupiter
estimates
limbs
Jupiter (planet)
irregularities
light curve
inclination
spectrographs
sun
wavelength

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Brown, T. M., Charbonneau, D., Gilliland, R. L., Noyes, R. W., & Burrows, A. (2001). Hubble space telescope time-series photometry of the transiting planet of HD 209458. Astrophysical Journal, 552(2 PART 1), 699-709. https://doi.org/10.1086/320580
Brown, Timothy M. ; Charbonneau, David ; Gilliland, Ronald L. ; Noyes, Robert W. ; Burrows, Adam. / Hubble space telescope time-series photometry of the transiting planet of HD 209458. In: Astrophysical Journal. 2001 ; Vol. 552, No. 2 PART 1. pp. 699-709.
@article{435d1cb801cf4ebc9944882bcf0a3ecf,
title = "Hubble space telescope time-series photometry of the transiting planet of HD 209458",
abstract = "We have observed four transits of the planet of HD 209458 using the STIS spectrograph on the Hubble Space Telescope (HST). Summing the recorded counts over wavelength between 582 and 638 nm yields a photometric time series with 80 s time sampling and relative precision of about 1.1 × 10-4 per sample. The folded light curve can be fitted within observational errors using a model consisting of an opaque circular planet transiting a limb-darkened stellar disk. In this way we estimate the planetary radius Rp = 1.347 ± 0.060 RJup, the orbital inclination i = 86°.6 ± 0°.14, the stellar radius R* = 1.146 ± 0.050 R⊙, and one parameter describing the stellar limb darkening. Our estimated radius is smaller than those from earlier studies but is consistent within measurement errors and also with theoretical estimates of the radii of irradiated Jupiter-like planets. Satellites or rings orbiting the planet would, if large enough, be apparent from distortions of the ligh: curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R⊕ and 3 M⊕, respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric precision attained in this experiment confirms the feasibility of photometric detection of Earth-sized planets circling Sun-like stars.",
author = "Brown, {Timothy M.} and David Charbonneau and Gilliland, {Ronald L.} and Noyes, {Robert W.} and Adam Burrows",
year = "2001",
month = "5",
day = "10",
doi = "10.1086/320580",
language = "English (US)",
volume = "552",
pages = "699--709",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2 PART 1",

}

Brown, TM, Charbonneau, D, Gilliland, RL, Noyes, RW & Burrows, A 2001, 'Hubble space telescope time-series photometry of the transiting planet of HD 209458', Astrophysical Journal, vol. 552, no. 2 PART 1, pp. 699-709. https://doi.org/10.1086/320580

Hubble space telescope time-series photometry of the transiting planet of HD 209458. / Brown, Timothy M.; Charbonneau, David; Gilliland, Ronald L.; Noyes, Robert W.; Burrows, Adam.

In: Astrophysical Journal, Vol. 552, No. 2 PART 1, 10.05.2001, p. 699-709.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Hubble space telescope time-series photometry of the transiting planet of HD 209458

AU - Brown, Timothy M.

AU - Charbonneau, David

AU - Gilliland, Ronald L.

AU - Noyes, Robert W.

AU - Burrows, Adam

PY - 2001/5/10

Y1 - 2001/5/10

N2 - We have observed four transits of the planet of HD 209458 using the STIS spectrograph on the Hubble Space Telescope (HST). Summing the recorded counts over wavelength between 582 and 638 nm yields a photometric time series with 80 s time sampling and relative precision of about 1.1 × 10-4 per sample. The folded light curve can be fitted within observational errors using a model consisting of an opaque circular planet transiting a limb-darkened stellar disk. In this way we estimate the planetary radius Rp = 1.347 ± 0.060 RJup, the orbital inclination i = 86°.6 ± 0°.14, the stellar radius R* = 1.146 ± 0.050 R⊙, and one parameter describing the stellar limb darkening. Our estimated radius is smaller than those from earlier studies but is consistent within measurement errors and also with theoretical estimates of the radii of irradiated Jupiter-like planets. Satellites or rings orbiting the planet would, if large enough, be apparent from distortions of the ligh: curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R⊕ and 3 M⊕, respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric precision attained in this experiment confirms the feasibility of photometric detection of Earth-sized planets circling Sun-like stars.

AB - We have observed four transits of the planet of HD 209458 using the STIS spectrograph on the Hubble Space Telescope (HST). Summing the recorded counts over wavelength between 582 and 638 nm yields a photometric time series with 80 s time sampling and relative precision of about 1.1 × 10-4 per sample. The folded light curve can be fitted within observational errors using a model consisting of an opaque circular planet transiting a limb-darkened stellar disk. In this way we estimate the planetary radius Rp = 1.347 ± 0.060 RJup, the orbital inclination i = 86°.6 ± 0°.14, the stellar radius R* = 1.146 ± 0.050 R⊙, and one parameter describing the stellar limb darkening. Our estimated radius is smaller than those from earlier studies but is consistent within measurement errors and also with theoretical estimates of the radii of irradiated Jupiter-like planets. Satellites or rings orbiting the planet would, if large enough, be apparent from distortions of the ligh: curve or from irregularities in the transit timings. We find no evidence for either satellites or rings, with upper limits on satellite radius and mass of 1.2 R⊕ and 3 M⊕, respectively. Opaque rings, if present, must be smaller than 1.8 planetary radii in radial extent. The high level of photometric precision attained in this experiment confirms the feasibility of photometric detection of Earth-sized planets circling Sun-like stars.

UR - http://www.scopus.com/inward/record.url?scp=0035837693&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035837693&partnerID=8YFLogxK

U2 - 10.1086/320580

DO - 10.1086/320580

M3 - Article

AN - SCOPUS:0035837693

VL - 552

SP - 699

EP - 709

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 PART 1

ER -

Brown TM, Charbonneau D, Gilliland RL, Noyes RW, Burrows A. Hubble space telescope time-series photometry of the transiting planet of HD 209458. Astrophysical Journal. 2001 May 10;552(2 PART 1):699-709. https://doi.org/10.1086/320580