000002694 001__ 2694
000002694 005__ 20160701171709.0
000002694 0247_ $$2DOI$$a10.1051/eas/1571026
000002694 037__ $$aASTROimport-851
000002694 100__ $$aHrivnak, B. J.
000002694 245__ $$aA Radial Velocity and Light Curve Study of Pulsations and Binarity in Proto-Planetary Nebulae
000002694 260__ $$c2015
000002694 520__ $$aWe have investigated pulsations and searched for binarity in 7 bright proto-planetary nebulae. All are found to pulsate, with dominant periods of 39-132 days. However, no strong evidence of binarity is found in any of them. This implies that any binary companion must have either a very long period (>30 yr) or low mass (0.2 Msun). This appears to rule out Roche lobe overflow as a contribution to the shaping of the surrounding nebula. 
000002694 700__ $$a Lu, W.
000002694 700__ $$a Van de Steene, G.
000002694 700__ $$a Van Winckel, H.
000002694 700__ $$a Sperauskas, J.
000002694 700__ $$a Bohlender, D.
000002694 773__ $$c127-128$$pEAS Publications Series$$v71$$y2015
000002694 85642 $$ahttp://esoads.eso.org/abs/2015EAS....71..127H
000002694 905__ $$apublished in
000002694 980__ $$aNONREF