A coronagraph with a variable-diameter occulting disk

Authors
Bourget, P Veiga, CH Martins, RV
Citation
P. Bourget et al., A coronagraph with a variable-diameter occulting disk, PUB AST S P, 113(782), 2001, pp. 436-438
Citations number
6
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN journal
00046280 → ACNP
Volume
113
Issue
782
Year of publication
2001
Pages
436 - 438
Database
ISI
SICI code
0004-6280(200104)113:782<436:ACWAVO>2.0.ZU;2-L
Abstract
In order to optimize the occulting process of a classical Lyot coronagraph for imaging faint satellites next to Jovian planets, we designed a coronagr aph with a variable-diameter occulting disk (Hg mask). We present the descr iption of the Hg-mask coronagraph developed at the Observatorio Nacional, R io de Janeiro. and the imaging test on Neptune's satellite Proteus.