HIGH-RESOLUTION OSCILLATOR STRENGTH MEASUREMENTS FOR THE A(V')-X(0) BANDS OF CARBON-MONOXIDE WITH 11-LESS-THAN-OR-EQUAL-TO-V'LESS-THAN-OR-EQUAL-TO-14

被引:7
作者
SMITH, PL
STARK, G
YOSHINO, K
ITO, K
机构
[1] WELLESLEY COLL,DEPT PHYS,WELLESLEY,MA 02181
[2] NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY,TSUKUBA,IBARAKI 305,JAPAN
关键词
ISM; MOLECULES; MOLECULAR DATA; ULTRAVIOLET;
D O I
10.1086/187493
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Band oscillator strengths (f-values) for four bands of the Fourth Positive system (A1PI-X1SIGMA+) of CO have been determined from high-resolution (lambda/DELTAlambda almost-equal-to 150,000) absorption spectra. The bands, (14, 0) through (11, 0), are at wavelengths between 121 and 127 nm. Our f-values for the (I 1, 0) and (I 2, 0) bands support those of Chan, Cooper, & Brion (1993), which have been shown to be consistent with observations of CO in the clouds in the line of sight, to zeta Oph. Our f-values for the (13, 0) and (14, 0) bands are the first directly measured values for these bands.
引用
收藏
页码:L143 / L145
页数:3
相关论文
共 23 条
[11]   INTERSTELLAR CARBON-MONOXIDE TOWARD ZETA-OPHIUCHI [J].
LAMBERT, DL ;
SHEFFER, Y ;
GILLILAND, RL ;
FEDERMAN, SR .
ASTROPHYSICAL JOURNAL, 1994, 420 (02) :756-771
[12]  
LARSSON M, 1983, ASTRON ASTROPHYS, V128, P291
[13]   ABSOLUTE GENERALIZED OSCILLATOR STRENGTHS FOR 4 ELECTRONIC TRANSITIONS IN CARBON MONOXIDE [J].
LASSETTR.EN ;
SKERBELE, A .
JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (04) :1597-&
[14]   EXPERIMENTAL DETERMINATION OF OSCILLATOR STRENGTHS FOR CO A1PI[-X1SIGMA+ BANDS [J].
MEYER, VD ;
LASSETTR.EN .
JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (04) :1608-&
[15]  
MORTON DC, 1994, IN PRESS APJS
[16]   Intensities of electronic transitions in molecular spectra I. Introduction [J].
Mulliken, RS .
JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (01) :14-20
[17]   FRACTIONATION OF CO IN THE DIFFUSE CLOUDS TOWARD ZETA OPHIUCHI [J].
SHEFFER, Y ;
FEDERMAN, SR ;
LAMBERT, DL ;
CARDELLI, JA .
ASTROPHYSICAL JOURNAL, 1992, 397 (02) :482-491
[18]   FOURTH POSITIVE SYSTEM OF CARBON MONOXIDE OBSERVED IN ABSORPTION AT HIGH RESOLUTION IN VACUUM ULTRAVIOLET REGION [J].
SIMMONS, JD ;
BASS, AM ;
TILFORD, SG .
ASTROPHYSICAL JOURNAL, 1969, 155 (1P1) :345-&
[19]   HIGH-RESOLUTION PHOTOABSORPTION CROSS-SECTIONS OF E1-PI-X1-SIGMA+ VIBRATIONAL BANDS OF (CO)-C-12 AND (CO)-C-13 [J].
STARK, G ;
SMITH, PL ;
ITO, K ;
YOSHINO, K .
ASTROPHYSICAL JOURNAL, 1992, 395 (02) :705-709
[20]   HIGH-RESOLUTION ABSORPTION CROSS-SECTION MEASUREMENTS OF CARBON-MONOXIDE AT 20-K BETWEEN 96.7 AND 98.8 NANOMETERS [J].
STARK, G ;
YOSHINO, K ;
SMITH, PL ;
ESMOND, JR ;
ITO, K ;
STEVENS, MH .
ASTROPHYSICAL JOURNAL, 1993, 410 (02) :837-842