Data Use Policy

All the images from the survey and the continuum-subtracted images will be made public eventually through this page. For now, all the CASU pipeline products are available together with most of the continuum-subtracted images.

Please cite the UWIFE survey paper (Lee et al. 2014, MNRAS, submitted) if you are using any of the data in a publication.

UWIFE Data Access

The site for raw data access can be temporarily down.

Pipeline images

The pipeline processed [Fe II] images are located under "data/uwife/casu_pipeline" directory, whose listing may look like below.

README                             uwife_20120623_20120708
reduced                            uwife_20120623_20120708_old
status                             uwife_20120623_20120708v2
uwife_20120620_20120622            uwife_20120709_20120713
uwife_20120620_20120622_old        uwife_20120724_20120730
uwife_20120620_20120622v2          uwife_20120814_20120824
uwife_20120620_20120622_w44_short  uwife_20120913_20120916

The files are further divided into subdirectories according to their observed dates. For example, uwife_20120913_20120916 contains

w20120913_00153_sf_st_cat.fits  w20120914_01474_sf_st.fit
w20120913_00153_sf_st_conf.fit  w20120914_01486_sf_st_cat.fits
w20120913_00153_sf_st.fit       w20120914_01486_sf_st_conf.fit
w20120913_00165_sf_st_cat.fits  w20120914_01486_sf_st.fit
...
w20120914_01462_sf_st.fit       w20120916_00239_sf_st_conf.fit
w20120914_01474_sf_st_cat.fits  w20120916_00239_sf_st.fit
w20120914_01474_sf_st_conf.fit

The file name represent the date of observation and the run id. Files ending "_sf_st.fit" are images. These FITS image files have 4 extensions corresponding to 4 chips (w, x, y and z). Note that the images are rice-compressed. You may find this page helpful. Files ending with "_sf_st_cat.fits" are catalog of detected sources, and the files with "_sf_st_conf.fit" are confidence maps.

For each tile (a single square in the coverage maps), which is about $50'\times50'$, there are 4 fits files where each file contains 4 images, i.e., total of 16 images for a single tile. For example, 4 files associated with tile number 129 are

w20120626_00631_sf_st.fit
w20120626_00643_sf_st.fit
w20120626_00655_sf_st.fit
w20120626_00667_sf_st.fit

The mapping information between tile number and the associated files can be found from the info files, which can be downloaded from the link below.

You will see files named like uwife0033_FeII_l15_50:129.info which contains lines similar to below.

[FeII]
0_0 : w20120626_00631_sf_st.fit
1_0 : w20120626_00643_sf_st.fit
0_1 : w20120626_00655_sf_st.fit
1_1 : w20120626_00667_sf_st.fit
....
w20120626_00631_sf_st.fit : sftp://gems0_public@103.8.230.221:wfcam/uwife_20120623_20120708/w20120626_00631_sf_st.fit
....

It lists associated file names for each filter, and the urls to download those files. 0_0, 0_1, 1_0 and 1_1 are sequence name, i.e., a single tile is consist of 4 sequences.

Continuum subtracted images

To find the image you want, go to the Table page of this website and identify which tile contains your target.

The following nomenclature is adopted from UKIRT WFCAM. Please refer to the focal plane layout shown in Figure 1.1a (link).

For each tile number, you will find four sequences (0_0, 1_0, 0_1, 1_1). Download the FITS images and determine which sequence you need.

The final step is to identify which detector (among the four shown in Figure 1.1a) corresponds to your region of interest. The numbers 1, 2, 3, and 4 in Figure 1.1a correspond to w, x, y, and z in the UWIFE data (southwest, southeast, northeast, and northwest, respectively).

You are now ready to download the continuum-subtracted [Fe II] image. The file naming convention is as follows:

https://archive.kasi.re.kr/kgmt/uwife/starsub-compressed/uwife(1)_FeII_S(2)v0_(3)_starsub.fits.fz

For example, if you wish to download an image with the following parameters (1) tile = 002, (2) sequence = 1_1, (3) detector = z, enter the following URL in the browser address bar:
https://archive.kasi.re.kr/kgmt/uwife/starsub-compressed/uwife002_FeII_S1_1v0_z_starsub.fits.fz

For further questions, please contact yskim916@gmail.com