K. H. Young et al 2004 ApJ 616 L51 doi:10.1086/420883
K. H. Young1, T. R. Hunter1, D. J. Wilner1, M. A. Gurwell1, J. W. Barrett1, R. Blundell1, R. Christensen2, D. Fong2, N. Hirano3, P. T. P. Ho1,3, S. Y. Liu3, K. Y. Lo3,4, R. Martin3, S. Matsushita3, J. M. Moran1, N. Ohashi3, D. C. Papa1, N. Patel1, F. Patt3, A. Peck2, C. Qi1, M. Saito1,5, A. Schinckel2, H. Shinnaga2, T. K. Sridharan1, S. Takakuwa2, C. E. Tong1 and D. V. Trung3
Show affiliationsWe present imaging observations of the evolved star IRC +10216 in the CS J = 14-13 line at 685.4 GHz and the associated submillimeter continuum at ~2'' resolution made with the partially constructed Submillimeter Array. The CS J = 14-13 line emission from the stellar envelope is well resolved both spatially and spectrally. The strong central concentration of the line emission provides direct evidence that CS is a parent molecule that forms close to the stellar photosphere, in accord with previous images of the lower excitation CS J = 2-1 line and inferences from unresolved observations of vibrationally excited transitions. The continuum emission is dominated by a compact, unresolved component, consistent with the photospheric emission, that accounts for ~20% of the broadband 450 μm flux. These are the first interferometer imaging observations made in the semitransparent 450 μm atmospheric window.
astrochemistry; circumstellar matter; stars: individual (IRC+10216); techniques: interferometric
Issue 1 (2004 November 20)
Received 2004 January 15, accepted for publication 2004 March 8
Published 2004 October 28
K. H. Young et al 2004 ApJ 616 L51
T Dobrowolski 2002 Class. Quantum Grav. 19 3153
B S Acharya 2002 Class. Quantum Grav. 19 5619
Delphine Cabaret and Christian Brouder 2009 J. Phys.: Conf. Ser. 190 012003
Yuyang Liu et al 2006 Nanotechnology 17 3259
J M Kaniauskas and Z B Rudzikas 1980 J. Phys. B: At. Mol. Phys. 13 3521
M T Flores-Arias et al 2009 J. Opt. A: Pure Appl. Opt. 11 125301
L Chassagne et al 2007 Meas. Sci. Technol. 18 3267
F J Acevedo Rodriguez et al 2009 Meas. Sci. Technol. 20 125202
Inese I. Ivans et al. 2006 ApJ 645 613