Sample Galaxies

  • GLGA stv has been update for WISE data. Now, users can switch back and forth between different WISE bands and choose different types of masks.
  • Each band can also be masked separately.

These are my photometry of 25 galaxies using WISE data in w1, w2, w3, w4 bands. I compared my results with previous results. Most deviant points are due to the bad background masking, and probably not being able to see all the foreground sources in colourful images. I found out that when using W1 band for masking helps users to see more details in the image. For challenging galaxies, users better to open images in ds9 and play with contrast/bias values to see the details. Also having a look at SDSS/Pan-STARRS colourful images helps lot.

In the next version, I am going to add the possibility to bring up optical images more easily.

The upcoming features to STV:

  • Opening optical images, when they are available in the data-base. There is already something available which is not enough.
  • Expanding or Shrinking the background annulus, it's useful in case of WISE photometry, when most of the annulus is masked by foreground objects. Also WISE has low resolution, sometimes we need to have more background pixel to have a better statistics.
  • The ability to display centroid on ds9 images. To see what has been already masked out and what has not.
  • the ability to produce a single circular region in ds9 and import it to STV as a new masking centroid
  • Probably adding more dialogue boxes to avoid users to visit his/her terminal frequently

no PGC w1 w2 w3 w4 * w1.ehsan w2.ehsan w3.ehsan w4.ehsan profile images
1 698 11.197 11.73 9.928 8.956 * 11.167 11.774 9.892 8.961 profile images
2 23110 11.773 12.419 11.557 10.68 * 11.746 12.359 11.553 10.637 profile images
3 23086 11.847 12.476 11.659 11.486 * 11.845 12.473 11.63 11.506 profile images
4 23362 11.841 12.502 12.169 12.018 * 11.828 12.451 12.11 11.969 profile images
5 23232 12.321 12.789 11.426 11.046 * 12.263 12.811 11.371 10.982 profile images
6 10927 12.157 12.716 11.84 11.687 * 12.179 12.76 11.854 11.688 profile images
7 23169 12.504 13.001 11.697 11.258 * 12.495 12.93 11.627 11.183 profile images
8 23319 13.248 13.918 12.402 11.661 * 13.234 13.914 12.39 11.479 profile images
9 23326 13.306 13.777 11.895 11.49 * 13.329 13.771 11.894 11.521 profile images
10 23289 13.152 13.617 12.14 11.989 * 13.169 13.626 12.142 11.966 profile images
11 11150 13.349 13.968 13.198 12.574 * 13.364 13.995 13.202 12.853 profile images
12 11255 13.045 13.509 11.507 11.107 * 13.057 13.485 11.52 11.06 profile images
13 10943 13.31 13.942 12.994 13.111 * 13.313 13.912 13.107 12.951 profile images
14 11074 13.463 14.02 12.796 12.36 * 13.461 13.982 12.772 12.287 profile images
15 11136 13.396 13.971 13.076 13.15 * 13.385 13.943 13.086 13.032 profile images
16 10913 13.829 14.418 13.8 13.211 * 13.555 14.352 13.133 12.24 profile images
17 23443 14.189 14.786 13.145 12.619 * 14.137 14.703 13.139 12.733 profile images
18 23662 14.536 15.09 13.729 13.453 * 14.458 14.94 13.776 13.76 profile images
19 1713 14.581 15.416 15.098 14.612 * 14.572 15.388 15.085 14.235 profile images
20 23589 14.423 14.902 13.542 12.612 * 14.303 14.847 13.354 12.589 profile images
21 23146 14.336 14.937 13.976 14.368 * 14.246 14.84 13.738 14.338 profile images
22 11102 14.149 14.581 12.998 12.798 * 14.154 14.523 12.983 12.68 profile images
23 23338 14.982 15.611 14.787 13.952 * 14.996 15.384 14.745 13.777 profile images
24 23374 15.414 15.995 14.882 13.667 * 15.4 16.123 14.846 13.697 profile images
25 23661 15.657 16.341 15.648 14.344 * 15.629 16.392 15.613 14.271 profile images
Last modified 4 years ago Last modified on Sep 29, 2016, 10:35:46 PM

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