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Data reduced with OPERA

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Here we present the reduced spectra from the 2015 on-sky tests. The reduction was performed by Lison Malo (CFHT) and Eder Martioli (LNA) using the OPERA pipeline.

!!!IMPORTANT!!!

If you plan to use these reduced spectra for publication, please make sure to acknowledge the work of Lison Malo and Eder Martioli, and to cite Martioli et al. (2012)  and Malo et. al (in prep).

Also, include the usual acknowledgments for papers based on GRACES data.

 

The following table gives brief information about the spectra and previews (that can be displayed by clicking on the related links). The spectra can be dowloaded by clicking on "data" for each file.

 

The format: The reduced spectra are in fits format. To know how to read them, click HERE.

 

 Target

 Information

 Previews and spectra

Feige 66

Spectral mode: 2-fiber

Central wavelength: 700nm

Airmass: 1.106, 1.110 and 1.114, respectively

N20150603G0116 (preview) (data)

N20150603G0117 (preview) (data)

N20150603G0118 (preview) (data)

                              Important note


Spectral mode: 1-fiber

Central wavelength: 700nm

Airmass: 1.028, 1.030 and 1.033, respectively

N20150604G0026 (preview) (data)

N20150604G0027 (preview) (data)

N20150604G0028 (preview) (data)

                              Important note

M 101

 

Spectral mode: 1-fiber

Central wavelength: 900nm

Airmass: 1.436, 1.500 and 1.590, respectively

N20150604G0042 (preview) (data)

N20150604G0043 (preview) (data)

N20150604G0044 (preview) (data)

                              Important note

NGC 6946

 

Spectral mode: 1-fiber

Central wavelength: 900nm

Airmass: 1.873

N20150721G0080 (preview) (data)

                              Important note

NGC 6818

 

Spectral mode: 1-fiber

Central wavelength: 500nm

Airmass: 1.300, 1.394 and 1.563, respectively

N20150721G0055 (preview) (data)

N20150721G0056 (preview) (data)

N20150721G0057 (preview) (data)

                              Important note

J19081716+3924583

 

Spectral mode: 1-fiber

Central wavelength: 700nm

Airmass: 2.035, 2.113 and 2.061, respectively

N20150604G0033 (preview) (data)

N20150604G0034 (preview) (data)

N20150604G0035 (preview) (data)

                              Important note

J19083615+4641212

 

Spectral mode: 1-fiber

Central wavelength: 700nm

Airmass: 1.139, 1.142 and 1.146, respectively

N20150721G0049 (preview) (data)

N20150721G0050 (preview) (data)

N20150721G0051 (preview) (data)

                              Important note

J19093999+4913392


Spectral mode: 1-fiber

Central wavelength: 700nm

Airmass: 1.156, 1.154 and 1.153, respectively

N20150721G0045 (preview) (data)

N20150721G0046 (preview) (data)

N20150721G0047 (preview) (data)

                              Important note

J19101154+3914584

 

Spectral mode: 1-fiber

Central wavelength: 700nm

Airmass: 1.095, 1.099 and 1.104, respectively

N20150721G0052 (preview) (data)

N20150721G0053 (preview) (data)

N20150721G0054 (preview) (data)

                              Important note

HIP 74432

 

Spectral mode: 1-fiber

Central wavelength: 500nm

Airmass: 1.005, 1.004 and 1.002, respectively

N20150604G0036 (preview) (data)

N20150604G0037 (preview) (data)

N20150604G0038 (preview) (data)

                              Important note

 HIP 74434

COMING SOON

Spectral mode: 1-fiber

Central wavelength: 500nm

Airmass: 1.262, 1.278 and 1.258, respectively

N20150809G0046 (preview) (data)

N20150809G0047 (preview) (data)

N20150809G0048 (preview) (data)

                              Important note

 18 Sco

 COMING SOON

Spectral mode: 1-fiber

Central wavelength: 500nm

Airmass: 1.261, 1.240 and 1.246, respectively

N20150809G0049 (preview) (data)

N20150809G0050 (preview) (data)

N20150809G0051 (preview) (data)

                              Important note

 Pallas

 COMING SOON

Spectral mode: 1-fiber

Central wavelength: 500nm

Airmass: 1.027, 1.001 and 1.001, respectively

N20150811G0061 (preview) (data)

N20150811G0062 (preview) (data)

N20150811G0063 (preview) (data)

                              Important note

 CXOGBS J173643.8-282122

 

Spectral mode: 2-fiber

Central wavelength: 700nm

Airmass: 1.505, 1.506 and 1.623, respectively

N20150808G0059 (preview) (data)

N20150808G0060 (preview) (data)

N20150808G0061 (preview) (data)

                              Important note

 

 

About the i.fits files

The fits files can be read using the usual softwares, like python or IDL. They contain multiple columns, and the number of columns depends on the spectroscopic mode. The format follows the standards established by the pipeline Libre-ESpRIT used at CFHT.

 


 

FITS keywords identify the type of reduction and content of the file:


REDUCTIO= 'Intensity'          / Type of reduction
FILENAME                                " Base filename at reduction"
DATE                                    " UTC Date of reduction"
UTIME                                   " UTC time of reduction"
HSTTIME                         " Local time in Hawaii of reduction"
FILENAMO                                " Base filename at acquisition"
DATE                                    " UTC Date of reduction"
UTIME                                   " UTC time of reduction"
HSTTIME                         " Local time in Hawaii of reduction"

 


 

For the 1-fiber spectroscopic mode, the i.fits files have:

Normalized spectra

COL1    = 'Wavelength'         / Normalized
COL2    = 'Intensity'          / Normalized
COL3    = 'ErrorBar'           / Normalized

Unormalized spectra (counts are in electrons)

COL4    = 'Wavelength'         / UnNormalized
COL5    = 'Intensity'          / UnNormalized
COL6    = 'ErrorBar'           / UnNormalized

Normalized and unormalized spectra, but without autoccorection of the wavelength calibration using the telluric lines

COL7    = 'Wavelength'         / Normalized, no autowave correction
COL8    = 'Intensity'          / Normalized, no autowave correction
COL9    = 'ErrorBar'           / Normalized, no autowave correction
COL10   = 'Wavelength'         / UnNormalized, no autowave correction
COL11   = 'Intensity'          / UnNormalized, no autowave correction
COL12   = 'ErrorBar'           / UnNormalized, no autowave correction

 


 

For the2-fiber spectroscopic mode, the i.fits files have:

Normalized spectra

COL1    = 'Wavelength'         / Normalized
COL2    = 'Target    '           / Normalized - Target (science fiber) corrected by the Sky (sky fiber)
COL3    = 'Target+sky'           / Normalized - Target+Sky as observed in the science fiber
COL4    = 'Sky     '           / Normalized - Sky spectrum (sky fiber)
COL5    = 'ErrorBar1'          / Normalized
COL6    = 'ErrorBar2'          / Normalized
COL7    = 'ErrorBar3'          / Normalized

Unormalized spectra (counts are in electrons)

COL8    = 'Wavelength'         / UnNormalized
COL9    = 'Target    '           / UnNormalized - Target (science fiber) corrected by the Sky (sky fiber)
COL10   = 'Star+sky'           / UnNormalized - Target+Sky as observed in the science fiber
COL11   = 'Sky     '           / UnNormalized - Sky spectrum (sky fiber)
COL12   = 'ErrorBar1'          / UnNormalized
COL13   = 'ErrorBar2'          / UnNormalized
COL14   = 'ErrorBar3'          / UnNormalized

Normalized and unormalized spectra, but without autoccorection of the wavelength calibration using the telluric lines

COL15   = 'Wavelength'         / Normalized, no autowave correction
COL16   = 'Target    '           / Normalized, no autowave correction
COL17   = 'Target+sky'           / Normalized, no autowave correction
COL18   = 'Sky     '           / Normalized, no autowave correction
COL19   = 'ErrorBar1'          / Normalized, no autowave correction
COL20   = 'ErrorBar2'          / Normalized, no autowave correction
COL21   = 'ErrorBar3'          / Normalized, no autowave correction
COL22   = 'Wavelength'         / UnNormalized, no autowave correction
COL23   = 'Target    '           / UnNormalized, no autowave correction
COL24   = 'Target+sky'           / UnNormalized, no autowave correction
COL25   = 'Sky     '           / UnNormalized, no autowave correction
COL26   = 'ErrorBar1'          / UnNormalized, no autowave correction
COL27   = 'ErrorBar2'          / UnNormalized, no autowave correction
COL28   = 'ErrorBar3'          / UnNormalized, no autowave correction

 


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