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Simple Spectral Access use cases, by Mike Fitzpatrick fitz at noao.edu


Thu Jun 19 13:30:52 PDT 2003

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Forgive me for not just lumping these all as "various NOAO spectral
libraries" but I though the different storage formats and associated data
tables would provide for some interesting use cases. Something like a
cutout service might be appropriate for some of the data, the challenging
thing for us however to put all these into an SSA is simply the variety
of local data access methods required.


Cheers,
-Mike


Data Providers (e.g., data centers, archives)

Provider Name: NOAO
Collection: High Resolution Atlas of Arcturus Spectra - 0.92-5.36 microns
Characteristics: 310 ASCII tables of wavenumber vs flux
Storage Format: Text tables
Available online: ftp://ftp.noao.edu/catalogs/arcturusatlas/ir
Comments: Tables contain three flux values (arcturus spectrum,
telluric spectrum and ratio) for both summer and winter
observations. Additional data for atomic and molecular
line identifications. Atlas by Hinkle, Wallace, Livingston,
Valenti, and Harmer.

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Provider Name: NOAO
Collection: High Resolution Atlas of Arcturus Spectra - 3727-9300 A
Characteristics: 57 ASCII tables of wavelength vs flux, also available as
FITS multispec or binary table images. Linear WCS
Storage Format: Text tables, FITS images, or FITS Binary Tables
Available online: ftp://ftp.noao.edu/catalogs/arcturusatlas/visual
Comments: Tables contain three flux values (arcturus spectrum,
solar flux and telluric transmission used to correct solar
flux spectrum). Additional data for atomic and molecular
line identifications. Atlas by Hinkle, Wallace, Valenti,
and Harmer.

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Provider Name: NOAO
Collection: Library of High Resolution Infrared Stellar Spectra in K-Band
Characteristics: Digital spectra for 17 cool stars in the 2.02-2.42 micron
region. The spectra have been corrected for telluric
absorption and are at a resolution >45000. Linear WCS
Storage Format: Text files
Available online: ftp://ftp.noao.edu/catalogs/hiresK/README
Comments: Tables contain one or two spectra and optionally an atmos-
speric transmission function. Wallace and Hinkle 1996 ApJS
107 312.

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Provider Name: NOAO
Collection: Library of Medium Resolution Infrared Stellar Spectra
Characteristics: Spectra of 147 MK standard stars covering the H, J, and K
bands. The spectra have been corrected for telluric absorp-
tion and are at a resolution of 3000. Linear WCS
Storage Format: FITS images
Available online: ftp://ftp.noao.edu/catalogs/medresIR
Comments: Spectra are from five papers by (variously) Wallace, Hinkle,
Meyer, Edwards, and Strom.

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Provider Name: NOAO
Collection: Coude Feed Spectral Library
Characteristics: Spectra of 684 stars observed with the Coudi Feed telescope
and spectrograph at KPNO. The spectra cover the ranges
3820 - 4500 E and 4780 - 5460 E at a resolution of 1.8 A
FWHM (~60 km/sec). Linear WCS
Storage Format: FITS images
Available online: ftp://ftp.noao.edu/catalogs/coudelib
Comments: Library of stellar spectra covering a wide variety of
spectral types, luminosity classes, and metallicities.
Sample selection was based almost entirely on the availabil-
ity of atmospheric parameters for the stars. Leitherer, C.
et al. 1996 PASP, 108, 996.

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Provider Name: NOAO
Collection: Library of Stellar Spectra
Characteristics: 160 1-D spectra covering 3510-7430 A at a resolution of
1.4 A/pix, linear WCS
Storage Format: FITS images
Available online: ftp://ftp.noao.edu/catalogs/jacobyetal.spec/
Comments: Library of stellar spectra covering entire range of spectral
types. G.H. Jacoby, D.A Hunter, and C.A. Christian, "A
Library of Stellar Spectra", in ApJ Supp. 56, 257.

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Provider Name: NOAO
Collection: Optical Spectrophotometric Atlas of SN 1987A
Characteristics: 139 flux-calibrated 1-D spectra at various wavelength
coverages and resolution, linear WCS
Storage Format: FITS images
Available online: ftp://ftp.noao.edu/sn1987a
Comments: Observations from Day 198 to 805, archive consists of CCD
spectra of SN 1987A obtained with the CTIO 1.5m and 4m
telescopes. Additionally, table of observing conditions
for each image and UBVRI photometry

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Provide Name: NOAO
Collection: Atlases of ThAR, FeAr, and HeNeAr comparison spectra
Characteristics: ThAr: covers 3005-10598A @ 0.02 A/pix, ~380000 pixels
FeAr: covers 3000-10900A @ 0.2 A/pix, ~38000 pixels
HeNeAr: covers 3300-11100A @ 0.35 A/pix, ~24000 pixels
Storage Format: FITS images
Available online: http://www.noao.edu/kpno/specatlas/thar/thar.html
http://www.noao.edu/kpno/specatlas/fear/fear.html
http://www.noao.edu/kpno/specatlas/henear/henear.html
Comments: Atlases are currently used in a web service providing
cutout FITS images in a given wavelength range, linelists,
and labeled line identification plots. Linelists also
available as text table