J/A+A/469/575 Spitzer mid-IR spectra of 3 molecular clouds (Berne+, 2007)
Analysis of the emission of very small dust particles from Spitzer
spectro-imagery data using blind signal separation methods.
Berne O., Joblin C., Deville Y., Smith J.D., Rapacioli M., Bernard J.P.,
Thomas J., Reach W., Abergel A.
<Astron. Astrophys. 469, 575 (2007)>
=2007A&A...469..575B 2007A&A...469..575B
ADC_Keywords: Molecular clouds ; Spectra, infrared
Keywords: astrochemistry - dust, extinction - ISM: lines and bands -
reflection nebulae - infrared: ISM - methods: numerical
Abstract:
This work was conducted as part of the SPECPDR program, dedicated to
the study of very small particles and astrochemistry, in
Photo-Dissociation Regions (PDRs). We present the analysis of the
mid-IR spectro-imagery observations of Ced 201, NCG 7023 East and
North-West and rho Ophiuchi West filament.
Using the data from all four modules of the InfraRed Spectrograph
onboard the Spitzer Space Telescope, we produced a spectral cube
ranging from 5 to 35µm, for each one of the observed PDRs. The
resulting cubes were analysed using Blind Signal Separation methods
(NMF and FastICA).
Description:
The files contain the data from Figs.1-4. from the paper.
For synthetic template VSG, PAH0, and PAH+ spectra please contact
Olivier Berne: berne(at)cesr.fr
Objects:
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RA (2000) DE Designation(s)
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22 13 27.0 +70 15 18 CED 201 = LBN 531
21 01 36.9 +68 09 48 NGC 7023 = LBN 487
16 28 06 -24 32 30 rho Oph cloud = LDN 1688
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 111 9 List of spectra
fig1sig1.fit 2880 2 BSS extracted spectra in Ced 201, Signal 1
fig1sig2.fit 2880 2 BSS extracted spectra in Ced 201, Signal 2
fig2sig1.fit 2880 2 BSS extracted spectra in Oph-fil, Signal 1
fig2sig2.fit 2880 2 BSS extracted spectra in Oph-fil, Signal 2
fig3sig1.fit 2880 2 BSS extracted spectra in NGC 7023-E, Signal 1
fig3sig2.fit 2880 2 BSS extracted spectra in NGC 7023-E, Signal 2
fig4sig1.fit 2880 2 BSS extracted spectra in NGC 7023-NW, Signal 1
fig4sig2.fit 2880 2 BSS extracted spectra in NGC 7023-NW, Signal 2
fig4sig3.fit 2880 2 BSS extracted spectra in NGC 7023-NW, Signal 3
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Object name
13- 24 A12 --- FITSfile Name of spectrum, in "sp" subdirectory
27-111 A85 --- Com Comments
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Acknowledgements:
Olivier Berne, berne(at)cesr.fr
(End) Patricia Vannier [CDS] 21-Jun-2007