000002261 001__ 2261
000002261 005__ 20160706142709.0
000002261 0247_ $$2DOI$$a10.1088/2041-8205/728/1/L20
000002261 037__ $$aASTROimport-418
000002261 100__ $$aWright, D. J.
000002261 245__ $$aDetermination of the Inclination of the Multi-planet Hosting Star HR 8799 Using Asteroseismology
000002261 260__ $$c2011
000002261 520__ $$aDirect imaging of the HR 8799 system was a major achievement in the study of exoplanets. HR 8799 is a γ Doradus variable and asteroseismology can provide an independent constraint on the inclination. Using 650 high signal-to-noise, high-resolution, full visual wavelength spectroscopic observations obtained over two weeks at Observatoire de Haute Provence with the SOPHIE spectrograph, we find that the main frequency in the radial velocity data is 1.9875 day-1. This frequency corresponds to the main frequency as found in previous photometric observations. Using the FAMIAS software to identify the pulsation modes, we find that this frequency is a prograde ell = 1 sectoral mode and obtain the constraint that inclination i >~ 40°. Based on observations obtained at the Observatoire de Haute-Provence which is operated by the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientifique of France.
000002261 700__ $$aChené, A.-N.
000002261 700__ $$aDe Cat, P.
000002261 700__ $$aMarois, C.
000002261 700__ $$aMathias, P.
000002261 700__ $$aMacintosh, B.
000002261 700__ $$aIsaacs, J.
000002261 700__ $$aLehmann, H.
000002261 700__ $$aHartmann, M.
000002261 773__ $$cL20$$i1$$pThe Astrophysical Journal$$v728$$y2011
000002261 85642 $$ahttp://esoads.eso.org/abs/2011ApJ...728L..20W
000002261 905__ $$apublished in
000002261 980__ $$aREFERD