III/242 ISO Astrophysical Spectroscopic Database (Jourdain de Muizon, 2005)
ISO Astrophysical Spectroscopic Database
Jourdain de Muizon Marie
<(Test version, Oct. 2005) >
ADC_Keywords: Spectra, infrared
Mission_Name: ISO
Keywords: Infrared ; Spectroscopy ; Planets ; Protostars; Stars ;
Interstellar Medium ; Galaxies
Description:
This database will eventually contain all the published infrared lines
observed by ISO, the Infrared Space Observatory. At this stage only a
few percent of the total content is included but it is increasing
steadily. Thus what is presented at this stage is a beta-version of
the final product.
ISO - the Infrared Space Observatory - was operational during about 28
months, between November 1995 and May 1998, until its cooling fluid
(liquid helium) burnt out (Kessler et al. 1996A&A...315L..27K 1996A&A...315L..27K). It
was the first far-infrared satellite equipped with two medium and
high resolution spectrometers, SWS (Short Wavelength Spectrometer,
2.38-45.2µm, de Graauw et al. 1996A&A...315L..49D 1996A&A...315L..49D) and LWS
(Long Wavelength Spectrometer, 43-197µm, Clegg et al.
1996A&A...315L..38C 1996A&A...315L..38C). Both spectrometers could be operated in grating
or Fabry-Perot mode. In addition, the two other ISO instruments also
provided spectroscopic data: ISOCAM (the ISO Camera, Cesarsky et al.
1996A&A...315L..32C 1996A&A...315L..32C) had a CVF (Circular Variable Filter) mode in
3 bands covering the range 2.3-17.3µm, and ISOPHOT (The Imaging
Photo-Polarimeter, Lemke et al. 1996A&A...315L..64L 1996A&A...315L..64L) had a dual
grating spectrometer (PHOT-S) with resolving power of order 90 in two
bands (2.5-4.9µm and 5.8-11.6µm). Detailed information about ISO
and its four ISO instruments can be found in "The ISO Handbook"
available on-line at http://www.iso.vilspa.esa.es/
The novelty, the richness and the unicity of the ISO spectroscopic
data is what motivated us in compiling this data in a systematic and
homogeneous way in order to make it available to the whole
astronomical community. No other past, current or foreseen space
project will overwrite this data, hence the importance of this
compilation. In addition, queries on the database content will be a
useful tool for the preparation of follow-up observations with other
space, airborne or ground-based observatories such as Herschel, SOFIA,
ALMA, VLT and more.
In this early version, the database is very incomplete. It contains
about 3000 lines which represents only a few percent of the total.
Each observed and published ISO spectroscopic line corresponds to a
physical line in IASD with up to 39 parameter/information fields. The
description of the various columns is given below.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
iasd.dat 972 3015 The ISO Astrophysical Spectroscopic Database
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See also:
VI/111 : ISO Observation Log (ISO Data Centre, 2004)
Byte-by-byte Description of file: iasd.dat
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Bytes Format Units Label Explanations
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2- 9 I8 --- TDT Number that identifies an ISO observation
in ISO log (Cat. VI/111)
10 A1 --- --- [0]
12- 13 I2 h RAh Actual Pointing Right Ascension J2000 (hours) (1)
14 A1 --- --- [:]
15- 16 I2 min RAm Actual Pointing Right Ascension J2000 (minutes)
17 A1 --- --- [:]
18- 22 F5.2 s RAs Actual Pointing Right Ascension J2000 (seconds)
24 A1 --- DE- Actual Pointing Declination J2000 (sign)
25- 26 I2 deg DEd Actual Pointing Declination J2000 (degrees) (1)
27 A1 --- --- [:]
28- 29 I2 arcmin DEm Actual Pointing Declination J2000 (minutes)
30 A1 --- --- [:]
31- 35 F5.2 arcsec DEs Actual Pointing Declination J2000 (seconds)
37- 38 I2 d Obs.D Start day/time of observation (UTC)
40- 42 A3 "month" Obs.M Start day/time of observation (UTC)
44- 47 I4 yr Obs.Y Start day/time of observation (UTC)
49- 50 I2 h Obs.h Start day/time of observation (UTC)
51 A1 --- --- [:]
52- 53 I2 min Obs.m Start day/time of observation (UTC)
54 A1 --- --- [:]
55- 56 I2 s Obs.s Start day/time of observation (UTC)
58- 60 A3 --- AOT Astronomical Observing Template number (4)
63- 78 A16 --- Target Target Name, as given by the observer
94-120 A27 --- Name2 Another Source Name from Simbad (5)
125-151 A27 --- Name3 Another Source Name from Simbad
156-181 A26 --- Name4 Another Source Name from Simbad
187-216 A30 --- Type1 Source Type, generally from Simbad
218-247 A30 --- Type2 Another Source Type
249-256 A8 --- Mode Observing mode, specifies the observing mode
within the AOT, if applicable (6)
264 A1 --- Ext [PE] Source Extent: "P" for point source,
"E" for extended source
299 A1 --- sp [LFB] Spectral Line Type (2)
322-327 F6.2 um cLambda Central Wavelength, in micron
331-340 F10.3 GHz Freq Frequency, in GHz
346-354 F9.4 cm-1 sigma Wavenumber, in inverse centimeter
356-358 A3 --- EmA "ABS" for absorption, "EM" for emission
369-375 F7.2 --- FWHM ? Line Width (FWHM) as given in the article
377-380 A4 --- x_FWHM Line Width Unit as given in the relevant article
404-408 I5 --- R Resolving Power (λ/deltaλ)
410-421 A12 --- Apert Instrument aperture, taken from the ISO Handbook
443-450 E8.3 W/m2 Flux ? Line/Feature Flux as given in the relevant
article, converted to W/m2
461-468 E8.2 cm-2 nH ? Column Density as given in the relevant article
487-493 F7.2 --- S/N ? Signal-to-Noise Ratio, given or calculated from
the relevant article
495-505 E11.4 --- pInt ? Line Peak Intensity as given in the relevant
article, expressed in x_pInt units
512-519 A8 --- x_pInt Peak Intensity Unit (see pInt)
551-554 F4.2 --- L/C ? Line to Continuum Ratio, from the relevant
article (7)
560-563 F4.2 mag Op ? Opacity, in case of an absorption feature
565-569 A5 --- Phase Physical phase of the observed specie
e.g. GAS, SOLID, SOL/G, DUST
571 I1 --- Det [1,3] Detection Flag: 3 = quantitative detection,
2 = qualitative detection, 1 = upper limit
586-617 A32 --- Element The chemical component responsible for the
relevant spectral line
619-650 A32 --- Trans The electronic, or vibration, rotation, ...
transition of the line
666-671 F6.2 um tLambda ? Nominal laboratory or theoretical wavelength
of the line, in micron
682-691 F10.3 GHz tFreq ? Nominal laboratory or theoretical frequency
of the line, in GHz
704-712 F9.4 cm-1 tSigma ? Nominal laboratory or theoretical wavenumber
of the line, in inverse centimeter
714-732 A19 --- Bibcode The reference code of the article (3)
734-972 A239 --- Comment Additonal useful information or parameters
which could not fit in any of the other columns
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Note (1): in most cases the ISO position except in case of a map
Note (2): mode is "L" for spectral line, "F" for spectral feature,
"B" for molecular band
Note (3): the 19-digit code from which the data in this line has been taken,
as given in the Astrophysical Data System and in Simbad
(http://adsabs.harvard.edu/ads_abstracts.html)
Note (4): Each AOT name refers to a specific observation configuration
with the relevant instrument. It is composed of a letter (C for
ISO_CAM, S for ISO_SWS, L for ISO_LWS and P for ISO_PHOT) and a
number. IASD includes all the AOT names of SWS (S01, S02, S06, S07
and S99) and of LWS (L01, L02, L03 and L04), but only one AOT name of
CAM (C04, for CAM spectrophotometric mode) and one of PHOT (P40, for
PHOT-S, the grating spectrometer of ISOPHOT).
Note (5): Another source name, equally of more famous than the "Target"
name given by the observer, often the IRAS Name, or the "target" name
corrected in case the observer had entered it wrongly. This name comes
from Simbad.
Note (6): An IDA observational parameter which adds a precision to the
AOT name. For example, it can be "pointing" of "raster" for LWS
AOT names and "Speed1", "Speed2", "Speed3", or "Speed4" for SWS
AOT names.
Note (7): Line-to-continuum ratio, either as given by the authors of
the relevant article, or calculated if the peak of the line and the
corresponding continuum flux densities are given in a table or in a
figure.
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History:
The essential of this catalog and documentation was prepared by
Marie JOURDAIN de MUIZON.
Send your comments to:
(End) Francois Ochsenbein [CDS] 18-Oct-2005