000002355 001__ 2355
000002355 005__ 20160701171704.0
000002355 037__ $$aASTROimport-512
000002355 100__ $$aLampens, P.
000002355 245__ $$aδ Scuti Stars in Stellar Systems: the Interest of HD 220392 and HD 220391
000002355 260__ $$c2000
000002355 520__ $$aThe very wide double star CCDM 23239-5349 is an interesting study case of a pulsating star within a common origin pair or wide binary. Both stars are located in the Delta Scuti instability strip. Based on data obtained at La Silla (Chile), at the Swiss 0.7m and the ESO 0.5m telescopes, we found two periodicities of about 4.7 and 5.5 cycles per day (cpd) with amplitudes of 0.014 and 0.011 mag, respectively, for HD 220392, the brightest member of the system. The most dominant periodicity was also detected in the Hipparcos Epoch Photometry data. A similar period search on the (smaller) dataset obtained for the 1 mag fainter B-component, HD 220391, however shows no periodic behaviour with an amplitude significantly above the noise level of the data (about 0.006 mag). 
000002355 700__ $$a van Camp, M.
000002355 773__ $$c403$$pDelta Scuti and Related Stars$$v210$$y2000
000002355 85642 $$ahttp://esoads.eso.org/abs/2000ASPC..210..403L
000002355 905__ $$apublished in
000002355 980__ $$aNONREF