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J/ApJS/86/713 IR spectroscopy of ices (Hudgins+, 1993)
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Mid- and far-infrared spectroscopy of ices: optical constants and integrated
absorbances
Hudgins D.M., Sandford S.A., Allamandola L.J., Tielens A.G.G.M.
<Astrophys. J. Suppl. Ser. 86, 713 (1993)>
=1993ApJS...86..713H (SIMBAD/NED Reference)
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ADC_Keywords: Interstellar medium; Spectra, infrared
Keywords: line: identification - molecular data
Abstract:
Laboratory spectra through the mid-infrared (4000 to 500cm^-1
[2.5-20 micron]) have been used to calculate the optical constants
(n and k) and integrated absorption coefficients (A) for a variety of
pure and mixed molecular ices of relevance to astrophysics. The ices
studied were H2O, CH3OH, CO2, OCS, CH4, CO2+CH4, CO2+OCS, CO+CH4,
CO+OCS, O2+CH4, O2+OCS, N2+CH4, N2+OCS, H2O+CH4, H2O+OCS, and
H2O+CH3OH+CO+NH3. In addition, the measurements have been extended
through the far-infrared (500 to 50cm^1 [20-200 micron]) for the H2O,
CH3OH, and H2O+CH3OH+NH3 ices.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fig2 29 23178 H2O:CH3OH:CO:NH3 = 100:10:1:1 Ice Mixture
(Weak Interstellar Mix) percentage transmission
fig3 29 23178 H2O:CH3OH:CO:NH3 = 100:50:1:1 Ice Mixture
(Strong Interstellar Mix) percentage transmission
fig4 29 19548 Pure CH3OH Ice percentage transmission
fig5 29 23175 Pure H2O Ice percentage transmission
fig6 29 16797 Pure CH4 Ice percentage transmission
fig7 29 14520 Pure CO2 Ice percentage transmission
fig8 29 7467 Pure OCS Ice percentage transmission
fig9 29 20736 CO:CH4 = 20:1 Ice Mixture percentage transmission
fig10 29 3736 CO:OCS = 20:1 Ice Mixture percentage transmission
fig11 29 34215 CO2:CH4= 20:1 Ice Mixture percentage transmission
fig12 29 21774 CO2:OCS= 20:1 Ice Mixture percentage transmission
fig13 29 22398 H2O:CH4= 20:1 Ice Mixture percentage transmission
fig14 29 18150 H2O:OCS= 20:1 Ice Mixture percentage transmission
fig15 29 21780 H2O:OCS= 2:1 Ice Mixture percentage transmission
fig16 29 9954 N2:CH4 = 20:1 Ice Mixture percentage transmission
fig17 29 9540 N2:OCS = 20:1 Ice Mixture percentage transmission
fig18 29 14931 O2:CH4 = 20:1 Ice Mixture percentage transmission
fig19 29 9538 O2:OCS = 20:1 Ice Mixture percentage transmission
table2 35 23175 H2O:CH3OH:CO:NH3 = 100:10:1:1 Ice Mixture
(Weak Interstellar Mix) optical constants
table3 35 23175 H2O:CH3OH:CO:NH3 = 100:50:1:1 Ice Mixture
(Strong Interstellar Mix) optical constants
table4 35 19546 Pure CH3OH Ice optical constants
table5 35 8868 Pure H2O Ice optical constants
table6 35 13992 Pure CH4 Ice optical constants
table7 35 14520 Pure CO2 Ice optical constants
table8 35 7776 Pure OCS Ice optical constants
table9 35 14092 CO:CH4 = 20:1 Ice Mixture optical constants
table10 35 7468 CO:OCS = 20:1 Ice Mixture optical constants
table11 45 21775 CO2:CH4 = 20:1 Ice Mixture optical constants
table12 35 11873 CO2:OCS = 20:1 Ice Mixture optical constants
table13 35 14520 H2O:CH4 = 20:1 Ice Mixture optical constants
table14 35 12100 H2O:OCS = 20:1 Ice Mixture optical constants
table15 35 21774 H2O:OCS = 2:1 Ice Mixture optical constants
table16 35 7466 N2:CH4 = 20:1 Ice Mixture optical constants
table17 35 9540 N2:OCS = 20:1 Ice Mixture optical constants
table18 35 10890 O2:CH4 = 20:1 Ice Mixture optical constants
table19 35 4770 O2:OCS = 20:1 Ice Mixture optical constants
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Byte-by-byte Description of file: fig*
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Bytes Format Units Label Explanations
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2- 4 I3 K Temp Temperature
8- 15 F8.3 cm-1 nu Frequency
23- 29 F7.3 % %T Percentage of transmission
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Byte-by-byte Description of file: table2 table3 table4 table5 table6 table7
Byte-by-byte Description of file: table8 table9 table10 table12 table13 table14
Byte-by-byte Description of file: table15 table16 table17 table18 table19
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Bytes Format Units Label Explanations
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2- 4 I3 K Temp Temperature
7- 14 F8.3 cm-1 nu Frequency
16- 24 F9.7 --- n Real part of the index of refraction (1)
25- 35 F11.8 --- k []? Imaginary part of the index of refraction
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Note (1): The index of refraction is the complex number n + ik
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Byte-by-byte Description of file: table11
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Bytes Format Units Label Explanations
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1- 3 I3 K Temp Temperature
5- 12 F8.3 cm-1 nu1 Frequency nu1
18- 24 F7.5 --- n(nu1) Real part of the index of refraction for
frequency nu1 (1)
27- 34 F8.3 cm-1 nu2 []? Frequency nu2
35- 46 F12.9 --- k(nu2) []? Imaginary part of the index of refraction
for frequency nu2
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Note (1): The index of refraction is the complex number n + ik
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(End) Patricia Bauer [CDS] 16-Sep-1994