High spatial resolution observations of the IRC+10216 source at 2.2 and 3.7 microns by multiplex coding

Details High spatial resolution observations of the IRC+10216 source at 2.2 and 3.7 microns by multiplex coding High spatial resolution observations of the IRC+10216 source at 2.2 and 3.7 microns by multiplex coding

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...76....5d&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 76, no. 1, Nov. 1988, p. 5-13. In French.

Astronomy and Astrophysics

Astrophysics

2

Carbon Stars, Coding, Infrared Stars, Stellar Envelopes, Stellar Spectrophotometry, Atmospheric Turbulence, High Resolution, Image Analysis, Spatial Resolution, Stellar Atmospheres

Scientific paper

Several hundred images of the infrared source IRC +10216 have been obtained with a Walsh-Hadamard coding technique, at wavelengths 2.2 μm, 3.7 μm and 4.8 μm with the 3.6 m European Southern Observatory (ESO) telescope. Interlaced exposures of the star R Leo were taken in order to determine the spread function of the instrument on a point source. The source IRC +10216 was clearly resolved at 2.2 and 3.7 μm. The shape of the image has been determined. The values are in agreement with values found by using other techniques.

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