2000A&A...354L..17M

Query : 2000A&A...354L..17M

2000A&A...354L..17M - Astronomy and Astrophysics, volume 354L17-20 (2000/2-1)

New PAH mode at 16.4 µm.

MOUTOU C., VERSTRAETE L., LEGER A., SELLGREN K. and SCHMIDT W.

Abstract (from CDS):

The detection of a new 16.4µm emission feature in the ISO-SWS spectra of NGC 7023, M17, and the Orion Bar is reported. Previous laboratory experiments measured a mode near this wavelength in spectra of PAHs (Polycyclic Aromatic Hydrocarbons), and so we suggest the new interstellar 16.4µm feature could be assigned to low-frequency vibrations of PAHs. The best carrier candidates seem to be PAH molecules containing pentagonal rings.

Abstract Copyright: ∼

Journal keyword(s): ISM: abundances - ISM: dust, extinction - ISM: reflection nebulae

Simbad objects: 5

goto View the references in ADS

Number of rows : 5
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 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 1004 0
2 NAME M 17 SW SFR 18 20 23.1 -16 11 43           ~ 281 0
3 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
4 NGC 7023 OpC 21 01 36.9 +68 09 48           ~ 739 0
5 HD 200775 Ae* 21 01 36.9205762896 +68 09 47.789578836 7.34 7.754 7.427 8.13   B2Ve 582 0

To bookmark this query, right click on this link: simbad:objects in 2000A&A...354L..17M and select 'bookmark this link' or equivalent in the popup menu