A search for starlight reflected from HD 75289b

Christopher Leigh; Andrew Collier Cameron; Stephane Udry; Jean-François Donati; Keith Douglas Horne; David James; Alan Penny

A search for starlight reflected from HD 75289b

Christopher Leigh, Andrew Collier Cameron, Stephane Udry, Jean-François Donati, Keith Douglas Horne, David James, Alan Penny

School of Physics and Astronomy

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

Abstract

We have used a Doppler tomographic analysis to conduct a deep search for the starlight reflected from the planetary companion to HD 75289. In four nights on VLT(UT2)/UVES in 2003 January, we obtained 684 high-resolution echelle spectra with a total integration time of 26 h. We establish an upper limit on the geometric albedo of the planet p < 0.12 (to the 99.9 per cent significance level) at the most probable orbital inclination i &SIME; 60&DEG;, assuming a grey albedo, a Venus-like phase function and a planetary radius R-p = 1.6 R-Jup. We are able to rule out some combinations of the predicted planetary radius and atmospheric albedo models with high, reflective cloud decks.

Original language	English
Pages (from-to)	L16-L20
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society
Volume	346
Issue number	2
Publication status	Published - 1 Dec 2003

Keywords

techniques : spectroscopic
stars : individual : HD 75289
planetary systems
EXTRASOLAR GIANT PLANETS
G-TYPE STARS
CORALIE SURVEY
PARENT STARS
TAU-BOOTIS
F-TYPE
COMPANIONS
ATMOSPHERES
SPECTRA
ALBEDO

Cite this

@article{2097c035c35c4d9b8b106d9107b01cb7,

title = "A search for starlight reflected from HD 75289b",

abstract = "We have used a Doppler tomographic analysis to conduct a deep search for the starlight reflected from the planetary companion to HD 75289. In four nights on VLT(UT2)/UVES in 2003 January, we obtained 684 high-resolution echelle spectra with a total integration time of 26 h. We establish an upper limit on the geometric albedo of the planet p < 0.12 (to the 99.9 per cent significance level) at the most probable orbital inclination i &SIME; 60&DEG;, assuming a grey albedo, a Venus-like phase function and a planetary radius R-p = 1.6 R-Jup. We are able to rule out some combinations of the predicted planetary radius and atmospheric albedo models with high, reflective cloud decks.",

keywords = "techniques : spectroscopic, stars : individual : HD 75289, planetary systems, EXTRASOLAR GIANT PLANETS, G-TYPE STARS, CORALIE SURVEY, PARENT STARS, TAU-BOOTIS, F-TYPE, COMPANIONS, ATMOSPHERES, SPECTRA, ALBEDO",

author = "Christopher Leigh and Cameron, {Andrew Collier} and Stephane Udry and Jean-Fran{\c c}ois Donati and Horne, {Keith Douglas} and David James and Alan Penny",

year = "2003",

month = dec,

day = "1",

language = "English",

volume = "346",

pages = "L16--L20",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

TY - JOUR

T1 - A search for starlight reflected from HD 75289b

AU - Leigh, Christopher

AU - Cameron, Andrew Collier

AU - Udry, Stephane

AU - Donati, Jean-François

AU - Horne, Keith Douglas

AU - James, David

AU - Penny, Alan

PY - 2003/12/1

Y1 - 2003/12/1

N2 - We have used a Doppler tomographic analysis to conduct a deep search for the starlight reflected from the planetary companion to HD 75289. In four nights on VLT(UT2)/UVES in 2003 January, we obtained 684 high-resolution echelle spectra with a total integration time of 26 h. We establish an upper limit on the geometric albedo of the planet p < 0.12 (to the 99.9 per cent significance level) at the most probable orbital inclination i &SIME; 60&DEG;, assuming a grey albedo, a Venus-like phase function and a planetary radius R-p = 1.6 R-Jup. We are able to rule out some combinations of the predicted planetary radius and atmospheric albedo models with high, reflective cloud decks.

AB - We have used a Doppler tomographic analysis to conduct a deep search for the starlight reflected from the planetary companion to HD 75289. In four nights on VLT(UT2)/UVES in 2003 January, we obtained 684 high-resolution echelle spectra with a total integration time of 26 h. We establish an upper limit on the geometric albedo of the planet p < 0.12 (to the 99.9 per cent significance level) at the most probable orbital inclination i &SIME; 60&DEG;, assuming a grey albedo, a Venus-like phase function and a planetary radius R-p = 1.6 R-Jup. We are able to rule out some combinations of the predicted planetary radius and atmospheric albedo models with high, reflective cloud decks.

KW - techniques : spectroscopic

KW - stars : individual : HD 75289

KW - planetary systems

KW - EXTRASOLAR GIANT PLANETS

KW - G-TYPE STARS

KW - CORALIE SURVEY

KW - PARENT STARS

KW - TAU-BOOTIS

KW - F-TYPE

KW - COMPANIONS

KW - ATMOSPHERES

KW - SPECTRA

KW - ALBEDO

UR - http://www.scopus.com/inward/record.url?scp=0344585402&partnerID=8YFLogxK

UR - http://www.blackwell-synergy.com/journals/resolver.asp?bibcode=2003MNRAS.346L..16L&format=

M3 - Article

SN - 0035-8711

VL - 346

SP - L16-L20

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

A search for starlight reflected from HD 75289b

Abstract

Keywords

Other files and links

Fingerprint

Cite this