Fourier transform emission spectra of the (000)-(000) band of the lambda 4051.6 band of C-3

A  Tanabashi; T  Hirao; T  Amano; P F  Bernath

Fourier transform emission spectra of the (000)-(000) band of the lambda 4051.6 band of C-3

A Tanabashi, T Hirao, T Amano, P F Bernath

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The (000) -(000) band of the 4051.6 &ANGS; group ((A) over tilde (1)&UPi;(u)-(X) over tilde (1)&USigma;(+)(g)) of C-3 was recorded in emission with a Bruker IFS 120HR Fourier transform (FT) spectrometer at the University of Waterloo. The band was excited by a microwave discharge in isopropanol ( less than a few mtorr) diluted in helium ( 2 torr). Our new FT data provide more reliable and accurately calibrated transition wavenumbers than those from the grating spectra given by Gausset and co-workers. Analysis of our new spectrum combined with the data by McCall and coworkers confirmed that the lower J levels in the (A) over tilde state were strongly perturbed, as reported by Gausset and coworkers. The unidentified lines observed by McCall and coworkers could be attributed to extra transitions to an unknown perturbing state.

Original language	English
Pages (from-to)	1116-1120
Number of pages	5
Journal	The Astrophysical Journal
Volume	624
Issue number	2
Publication status	Published - 10 May 2005

Keywords

astrochemistry
ISM : clouds
ISM : molecules
methods : laboratory
molecular data
TRANSLUCENT SIGHT LINES
LASER SPECTROSCOPY
IRC+10216
SYSTEM

Cite this

@article{6e3edf6b0223457e8bb0bd3250bfc16b,

title = "Fourier transform emission spectra of the (000)-(000) band of the lambda 4051.6 band of C-3",

abstract = "The (000) -(000) band of the 4051.6 &ANGS; group ((A) over tilde (1)&UPi;(u)-(X) over tilde (1)&USigma;(+)(g)) of C-3 was recorded in emission with a Bruker IFS 120HR Fourier transform (FT) spectrometer at the University of Waterloo. The band was excited by a microwave discharge in isopropanol ( less than a few mtorr) diluted in helium ( 2 torr). Our new FT data provide more reliable and accurately calibrated transition wavenumbers than those from the grating spectra given by Gausset and co-workers. Analysis of our new spectrum combined with the data by McCall and coworkers confirmed that the lower J levels in the (A) over tilde state were strongly perturbed, as reported by Gausset and coworkers. The unidentified lines observed by McCall and coworkers could be attributed to extra transitions to an unknown perturbing state.",

keywords = "astrochemistry, ISM : clouds, ISM : molecules, methods : laboratory, molecular data, TRANSLUCENT SIGHT LINES, LASER SPECTROSCOPY, IRC+10216, SYSTEM",

author = "A Tanabashi and T Hirao and T Amano and Bernath, {P F}",

year = "2005",

month = may,

day = "10",

language = "English",

volume = "624",

pages = "1116--1120",

journal = "The Astrophysical Journal",

issn = "1538-4357",

publisher = "IOP Publishing",

number = "2",

}

TY - JOUR

T1 - Fourier transform emission spectra of the (000)-(000) band of the lambda 4051.6 band of C-3

AU - Tanabashi, A

AU - Hirao, T

AU - Amano, T

AU - Bernath, P F

PY - 2005/5/10

Y1 - 2005/5/10

N2 - The (000) -(000) band of the 4051.6 &ANGS; group ((A) over tilde (1)&UPi;(u)-(X) over tilde (1)&USigma;(+)(g)) of C-3 was recorded in emission with a Bruker IFS 120HR Fourier transform (FT) spectrometer at the University of Waterloo. The band was excited by a microwave discharge in isopropanol ( less than a few mtorr) diluted in helium ( 2 torr). Our new FT data provide more reliable and accurately calibrated transition wavenumbers than those from the grating spectra given by Gausset and co-workers. Analysis of our new spectrum combined with the data by McCall and coworkers confirmed that the lower J levels in the (A) over tilde state were strongly perturbed, as reported by Gausset and coworkers. The unidentified lines observed by McCall and coworkers could be attributed to extra transitions to an unknown perturbing state.

AB - The (000) -(000) band of the 4051.6 &ANGS; group ((A) over tilde (1)&UPi;(u)-(X) over tilde (1)&USigma;(+)(g)) of C-3 was recorded in emission with a Bruker IFS 120HR Fourier transform (FT) spectrometer at the University of Waterloo. The band was excited by a microwave discharge in isopropanol ( less than a few mtorr) diluted in helium ( 2 torr). Our new FT data provide more reliable and accurately calibrated transition wavenumbers than those from the grating spectra given by Gausset and co-workers. Analysis of our new spectrum combined with the data by McCall and coworkers confirmed that the lower J levels in the (A) over tilde state were strongly perturbed, as reported by Gausset and coworkers. The unidentified lines observed by McCall and coworkers could be attributed to extra transitions to an unknown perturbing state.

KW - astrochemistry

KW - ISM : clouds

KW - ISM : molecules

KW - methods : laboratory

KW - molecular data

KW - TRANSLUCENT SIGHT LINES

KW - LASER SPECTROSCOPY

KW - IRC+10216

KW - SYSTEM

M3 - Article

SN - 1538-4357

VL - 624

SP - 1116

EP - 1120

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

ER -