SIMBAD references

1996A&A...315L.265C - Astronomy and Astrophysics, volume 315L265-268 (1996/11-2)

The ISO/LWS spectrum of the Egg nebula, AFGL 2688.

COX P., GONZALEZ-ALFONSO E., BARLOW M.J., LIU X.-W., LIM T., SWINYARD B.M., CERNICHARO J., OMONT A., CAUX E., GRY C., GRIFFIN M.J., BALUTEAU J.-P., CLEGG P.E., SIDHER S., PEQUIGNOT D., NGUYEN-Q-RIEU, KING K.J., ADE P.A.R., TOWLSON W.A., EMERY R.J., FURNISS I., JOUBERT M., SKINNER C.J., COHEN M., ARMAND C., BURGDORF M., EWART D., DI GIORGIO A., MOLINARI S., TEXIER D., TRAMS N., UNGER S.J., GLENCROSS W.M., LORENZETTI D., NISINI B., ORFEI R., SARACENO P. and SERRA G.

Abstract (from CDS):

We present an ISO Long Wavelength Spectrometer (LWS) grating spectrum of the carbon-rich proto-planetary nebula AFGL 2688 between 43 and 194µm. The far-infrared spectrum of AFGL 2688 is dominated by strong rotational transitions of CO which are detected from J=14-13 up to J=23-22. The atomic fine structure lines [O I] and [C II] are not detected. This is consistent with the cool central star of AFGL 2688 not having yet photodissociated the molecular gas ejected during the AGB phase. The far-infrared CO emission in AFGL 2688 appears to originate in shocked dense gas at a temperature of ∼400K.

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Journal keyword(s): planetary nebulae: general - planetary nebulae: individual (AFGL 2688) - interstellar medium: molecules

Simbad objects: 3

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