Observations of the AGB star IRC+10216 from milliarcsec to arcmin spatial scales

被引：0
|
作者：
Leao, Izan C. [1 ,2 ]
de Laverny, Patrick [1 ]
Mekarnia, Djamel [1 ]
De Medeiros, Jose R. [2 ]
Vandame, Benoit [3 ]
机构：
[1] Observ Cote Azur, Dpt Cassiopee, F-06003 Nice, France
[2] Univ Fed Rio Grande do Norte, Dept Fis, Natal, RN, Brazil
[3] European Southern Observ, Garching, Germany
来源：
WHY GALAXIES CARE ABOUT AGB STARS: THEIR IMPORTANCE AS ACTORS AND PROBES | 2007年 / 378卷
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P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the dusty circumstellar envelope of the AGB star IRC+10216 as observed with the ESO/NACO and FORS1 instruments. On milli-arcsecond scales, the regions close to the central star appear very asymmetric and their morphology strongly varies from the J to the L bands. Temporal variations are also reported. On arcmin scales, the arclet structure found in the very extended envelope is resolved into very thin shells owing to the very good spatial resolution of our image. A global view obtained by combining both scales is also presented.
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页码：309 / +
页数：2
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