Helioseismology with PICARD

• Main Authors: Corbard, T, Salabert, D, Boumier, P, Appourchaux, T, Hauchecorne, A, Journoud, P, Nunge, A, Gelly, B, Hochedez, J. F, Irbah, A, Meftah, M, Renaud, C, Turck-Chièze, S
• Format: Journal Article
• Language: English
• Published: 02-03-2013
• Subjects: Physics - Solar and Stellar Astrophysics
• DOI: 10.48550/arxiv.1301.6940

2013, Journal of Physics Conference Series,440, 012025 PICARD is a CNES micro-satellite launched in June 2010 (Thuillier at al.
2006). Its main goal is to measure the solar shape, total and spectral
irradiance during the ascending phase of the activity cycle. The SODISM
telescope onboard PICARD also allows us to conduct a program for
helioseismology in intensity at 535.7 nm (Corbard et al. 2008). One-minute
cadence low-resolution full images are available for a so-called medium-$l$
program, and high-resolution images of the limb recorded every 2 minutes are
used to study mode amplification near the limb in the perspective of g-mode
search. First analyses and results from these two programs are presented here.