2000A&AS..147..285P


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.26CEST06:30:52

2000A&AS..147..285P - Astron. Astrophys., Suppl. Ser., 147, 285-290 (2000/December-1)

First images on the sky from a hyper telescope.

PEDRETTI E., LABEYRIE A., ARNOLD L., THUREAU N., LARDIERE O., BOCCALETTI A. and RIAUD P.

Abstract (from CDS):

We show star images obtained with a miniature ``densified pupil imaging interferometer'' also called a hyper-telescope. The formation of such images violates a ``golden rule of imaging interferometers'' which appeared to forbid the use of interferometric arrangements differing from a Fizeau interferometer. These produce useless images when the sub-apertures spacing is much wider than their size, owing to diffraction through the sub-apertures. The hyper-telescope arrangement solves these problems opening the way towards multi-kilometer imaging arrays in space. We experimentally obtain an intensity gain of 24±3x when a densified-pupil interferometer is compared to an equivalent Fizeau-type interferometer and show images of the double star α Gem. The initial results presented confirm the possibility of directly obtaining high resolution and high dynamic range images in the recombined focal plane of a large interferometer if enough elements are used.

Abstract Copyright:

Journal keyword(s): interferometers - double star images - laboratory images - pupil densification

Status at CDS:  

Simbad objects: 2

goto Full paper

goto View the reference in ADS

Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * alf Aur SB* 05 16 41.35871 +45 59 52.7693 1.33 0.88 0.08 -0.52 -0.96 G3III: 1137 0
2 * alf Gem ** 07 34 35.87319 +31 53 17.8160 1.63 1.62 1.58 1.51 1.52 A1V+A2Vm 235 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2000A&AS..147..285P and select 'bookmark this link' or equivalent in the popup menu


2020.05.26-06:30:52

© Université de Strasbourg/CNRS

    • Contact