1998A&A...334.1056S

Query : 1998A&A...334.1056S

1998A&A...334.1056S - Astronomy and Astrophysics, volume 3341056-1059 (1998/6-3)

Solid CO2 towards NGC 7538 IRS1.

STRAZZULLA G., NISINI B., LETO G., PALUMBO M.E. and SARACENO P.

Abstract (from CDS):

We report the observation of the young infrared source NGC 7538 IRS1 with the Short Wavelength Spectrometer (SWS) onboard the ISO satellite in the 2.4-45µm range. The spectrum exhibits several absorption features due to silicates and to molecular species frozen on the refractory dust. In particular the stretching and bending mode of solid CO2 have been identified. In this paper we present a comparison of the observed absorption band at about 15.1µm (660cm–1) attributed to the bending mode of solid CO2 with laboratory spectra of ion irradiated ice mixtures.

Abstract Copyright: ∼

Journal keyword(s): ISM: molecules - dust, extinction - infrared: ISM: lines and bands - ISM: individual objects: [WBN74] NGC 7538 IRS1

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 7538 OpC 23 13 37 +61 30.0           ~ 920 1
2 [WBN74] NGC 7538 IRS 3 Y*? 23 13 43.646 +61 28 14.02           ~ 67 0
3 [WBN74] NGC 7538 IRS 1 Y*O 23 13 45.318 +61 28 11.69           ~ 433 3
4 [WBN74] NGC 7538 IRS 2 Y*? 23 13 45.4691116296 +61 28 19.985984832           ~ 76 0

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