Gemini Science Archive

Gemini Science Archive Gemini GMOS System Verification Data

Gemini GMOS System Verification Data

Data taken as part of GMOS System Verification (SV) or for other engineering purposes that are deemed to be of scientific value are made public after an assessment period typically not longer than 2 months. You are encouraged to take these datasets and assess or use them yourself.

The available GMOS data packages are listed below. The table includes the data package reference name, (astronomical) target name and a brief summary of the data. The description is contained within the data package itself. Click on the hyperlinks to download the raw or processed data (generally the processing was taken to a state that allowed quality assessment and therefore may not represent the best possible reduction e.g. for scientific analysis).

The data sets are saved as gzipped tar files, and should be saved to disk. Smaller programs are distributed as one file containing both raw and reduced image. For larger programs there will be one file containing all the reduced images and documentation, while the raw data are distributed in gzipped tar files, one for each night's data. Calibration data, including calibration unit flats, darks, and standard star measurements are available in separate gzipped tar files. You may retrieve these files by using "shift+click" or "right-click" plus choose "save" from your browser's menu.

In addition to the gzipped tar data sets, preview images and final co-adds (JPEG or FITS formats) are available for some data. The text files that describe the data (distributed with the tar files) are also available. Observing Tool (OT) files in XML format are available for some programs.

Useful Links:

Data Package Name/
Release Date
Program Title Text Summary Preview Data Packages
GN-2001B-SV-58

October 12 2004
Metallicity of AndV GN-2001B-SV-58 Summary
GN-2001B-SV-58 OT file
AndV(25% of full size)
M2(20% of full size)
NGC288(20% of full size)
NGC2914(25% of full size)
NGC2914 MOS
NGC2914 MOS sky subtracted

Raw imaging data (995 Mb)
Raw MOS data (305 Mb)
GN-2001B-SV-58 Reduced data (379 Mb)

GMOS-N System Verification observations of AndV, NGC2419, NGC288, and M2. Imaging of all 4 targets and MOS observations of AndV, NGC288 and NGC2419 were obtained. Only the imaging observations are used in the reference given below.
Observations obtained:

column1 column2 column3 column4
AndV g',r',i' 9x150sec,9x100sec,9x100sec fwhm=0.59,0.54,0.54 arcsec
NGC2419 g',r',i' 4x90sec,4x45sec,4x45sec fwhm=0.69,0.67,0.58 arcsec
NGC288 g',i' 7x6sec,8x3sec fwhm=0.89,0.69 arcsec
M2 g',i' 8x6sec,8x3sec fwhm=0.98,1.07 arcsec
AndV MOS R831 10x30min fwhm=1.00 arcsec
NGC2419 MOS R831 3x500sec fwhm=1.15 arcsec
NGC288 MOS R831 9x20sec fwhm=1.5 arcsec

Reference: Davidge, T.J., Da Costa, G.S., Jorgensen, I., Allington-Smith, J.R. 2002, AJ, 124, 886
PIs: Gary Da Costa
 

GN-2001B-SV-67

Aug 15 2002
High-redshift galaxies in the field of the z=4 QSO PMN2314+0201 GN-2001B-SV-67 Summary
GN-2001B-SV-67OT file
GN-2001B-SV-67 FITS g'-band (16Mb)
GN-2001B-SV-67 FITS r'-band (16Mb)
GN-2001B-SV-67 FITS i'-band (16Mb)
GN-2001B-SV-67 JPEG color (50% of full size)

GN-2001B-SV-67 Raw data (386 Mb)
GN-2001B-SV-67 Reduced data (77 Mb)

GMOS-N commissioning and SV observations of the field around the z=0.4 QSO PMN2314+0201.
Observations obtained:

column1 column2 column3
g'-band 6x900sec fwhm=0.69 arcsec
r'-band 14x600sec fwhm=0.68 arcsec
i'-band 12x300sec fwhm=0.46 arcsec

Reference for coordinates and finding chart: Hook et al. 2002 A&A, 391, 509
PIs: Isobel Hook and Gemini Staff

GN-2001B-SV-69

October 7 2004
Imaging of M33 and NGC2403 GN-2001B-SV-69 Summary
GN-2001B-SV-69 OT file
M33 (25% of full size)
M33 background (25% of full size)
NGC2403 (25% of full size)
NGC2403 backgorund (25% of full size)

GN-2001B-SV-69 Raw data (1050 Mb)
GN-2001B-SV-69 Reduced data (268 Mb)

GMOS-N System Verification observations of the halo of M33 and NGC2403.
Observations obtained:

column1 column2 column3 column4
M33 g',r',i',z' 8x60sec,6x60sec+13x5sec,6x60sec,6x60sec fwhm=1.04,1.00,0.91,0.74 arcsec
M33-bkg g',r',i',z' 6x60sec,6x60sec,12x60sec,6x60sec fwhm=0.94,0.85,0.71,0.66 arcsec
NGC2403 g',r',i',z' 2x900sec,2x400sec,6x400sec,24x200sec fwhm=0.92,0.89,0.73,0.79 arcsec
NGC2403-bkg g',r',i',z' 2x900sec,6x400sec,6x400sec,12x200sec fwhm=0.92,0.55,0.49,0.87 arcsec

Reference: Davidge, T.J. 2003, AJ, 125, 3046
PIs: Tim Davidge
 

GN-2001B-SV-101

April 18 2002
Imaging and MOS observations of the open star cluster NGC6940 GN-2001B-SV-101 Summary GN-2001B-SV-101 FITS (gzip'ed) imaging
GN-2001B-SV-101 JPEG imaging (20% of full size)

GN-2001B-SV-101 FITS MOS
All data (356 Mb)

GMOS-N commissioning observations of the open cluster NGC6940. The observations include r'-band imaging (3x30sec) with a fwhm of 0.7 arcsec, and MOS observations with two different grating configurations both with an exposure time of 2x300sec. The data are released to serve as a sample dataset of imaging and MOS observations from GMOS-N.
PIs: Gemini Staff

GN-2001B-SV-102

May 11 2002
Imaging of the spiral galaxy NGC628 GN-2001B-SV-102 Summary GN-2001B-SV-102 FITS g'-band (69Mb)
GN-2001B-SV-102 FITS r'-band (69Mb)
GN-2001B-SV-102 FITS i'-band (69Mb)
GN-2001B-SV-102 JPEG color (25% of full size)

GN-2001B-SV-102 Raw data (345 Mb)
GN-2001B-SV-102 Reduced data (206 Mb)

GMOS-N commissioning observations of the spiral galaxy NGC628. These observations were used for the press_release announcing the commissioning of GMOS-N. The data are released to serve as a sample dataset of imaging observations from GMOS-N. Observations obtained:

column1 column2 column3
g'-band 4x240sec fwhm=0.67 arcsec
r'-band 4x120sec fwhm=0.56 arcsec
i'-band 4x120sec fwhm=0.57 arcsec

PIs: Gemini Staff

GN-2001B-SV-104

October 7 2004
Imaging of WHDF GN-2001B-SV-104 Summary GN-2001B-SV-104 JPEG color (20% of full size)

GN-2001B-SV-104 Raw data (778 Mb)
GN-2001B-SV-104 Reduced data (253 Mb)

GMOS-N commissioning observations of the William Herschel Deep field. MOS observations of this field were attempted as part of GMOS-N System Verification, but no science quality observations were obtained in MOS mode.
Observations obtained:

column1 column2 column3
g'-band 6x300sec fwhm=0.86 arcsec
r'-band 6x300sec fwhm=0.67 arcsec
i'-band 6x300sec fwhm=0.67 arcsec
z'-band 6x300sec fwhm=0.74 arcsec

See the William Herschel Deep Field web site at Durham, UK, for more information on this field.
PIs: Gemini Staff
 

GN-2002B-SV-73

June 5 2003
GMOS IFU observations of emission line sources - Herbig Haro Objects GN-2002B-SV-73 Summary
GN-2002B-SV-73 OT file
GN-2002B-SV-73 FITS Data cube (110Mb)
GN-2002B-SV-73 FITS H-alpha image (72kb)
GN-2002B-SV-73 JPEG slice of data cube
GN-2002B-SV-73 JPEG H-alpha image

GN-2002B-SV-73 Raw data (584 Mb)
Reduced data part 1 (1028 Mb)
Reduced data part 2 (1754 Mb)

GMOS-N SV observations of Herbig Haro Object 32. Observations obtained:

column1 column2 column3
IFU one-slit mode 6x600sec fwhm=0.55 arcsec
IFU one-slit mode 12x900sec fwhm=0.50 arcsec

References: Beck et al. (2003, in prep.), Raga et al. (2003, in prep.)
PI: Tracy Beck

GS-2003A-SV-228

  May 25 2003
Imaging of Hickson Compact Group 87
GS-2003A-SV-228 Summary GS-2003A-SV-228 FITS g'-band (69Mb)
GS-2003A-SV-228 FITS r'-band (69Mb)
GS-2003A-SV-228 FITS i'-band (69Mb)
GS-2003A-SV-228 JPEG color (14Kb)

GS-2003A-SV-228 Raw data (345 Mb)
GS-2003A-SV-228 Reduced data (209 Mb)

GMOS-S commissioning observations of the Hickson Compact Group 87 (HCG87). These observations were used for the press release announcing the commissioning of GMOS-S. The data are released to serve as a sample dataset of imaging observations from GMOS-S. Observations obtained:

column1 column2 column3
g'-band 3x300sec fwhm=0.51 arcsec
r'-band 3x180sec fwhm=0.39 arcsec
i'-band 6x120sec fwhm=0.36 arcsec

PIs: Gemini Staff

GN-CAL20011225

October 7 2004
Baseline calibrations GN-CAL20011225 Summary GN-CAL20011225 Flat fields
GN-CAL20011225 Bias
GN-CAL20011225 Reduced (557 Mb)

Baseline calibration data for GMOS-N System Verification observations. The released data contain the reduced bias frames and imaging twilight flats for observations obtained in the period December 18-26, 2001.
 

GN-CAL20011122

October 7 2004
Baseline calibrations GN-CAL20011122 Summary GN-CAL20011122 Flat fields
GN-CAL20011122 Bias
GN-CAL20011122 Reduced (426 Mb)

Baseline calibration data for GMOS-N System Verification observations. The released data contain the reduced bias frames and imaging twilight flats for observations obtained in the period November 10-22, 2001. The calibrations can also be used for science observations taken in the period October 21-November 9, 2001.
 

GN-CAL20010910

April 18 2002
Baseline calibrations GN-CAL20010910 Summary GN-CAL20010910 Flat fields
GN-CAL20010910 Bias
GN-CAL20010910 Reduced (421 Mb)

Baseline calibration data for GMOS-N commissioning observations. The released data contain the reduced bias frames and imaging twilight flats for observations between August 7 and September 10, 2001. The raw data are not released.

GN-CAL20010830

August 19 2002
Baseline calibrations GN-CAL20010830 Summary GN-CAL20010830 Flat fields GN-CAL20010830 Reduced (350 Mb)

Baseline calibration data for GMOS-N commissioning observations. The released data contain the reduced dome imaging flat fields for observations between August 7 and September 10, 2001. The raw data are not released.

GN-CAL20010820

June 27 2002
Baseline calibrations GN-CAL20010820 Summary See the figures on the GMOS web pages

GN-CAL20010820 Reduced data (117 Mb)

Baseline calibration data for GMOS-N commissioning observations. The released data contain typical fringe frames in the i'-filter and the z'-filter. The fringe frames were derived from science data obtained on August 20, 2001. The raw data will be released as part of GN-2001B-SV-104.

GS-CAL20030524

May 24 2003
Baseline calibrations GS-CAL20030524 Summary GS-CAL20030524 Flat fields
GS-CAL20030524 Bias
GS-CAL20030524 Fringe frames

GS-CAL20030524 Reduced data (664 Mb)

Baseline calibration data for GMOS-S System Verification observations. The released data contain the reduced bias frames, imaging twilight flats and fringe frame in i' filter for observations obtained in the period May 24-30, 2003.

PIs: Gemini Staff