Galactic Redshift and Size part II
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After a fairly long time collecting galaxies with a known redshift, I came up with a project for showing galaxy sizes from apparent size and redshift. To find any trends and changes with galactic size and redshift, I made collections of galaxies sorted by redshift, and used angular size and a number of calculators to guess their size.
The below images show the true size of the galaxies relative to one another; where a pixel is 100 light years. The larger the picture is, the larger the galaxy itself is. Expect more galaxy images later.
Redshift = 0.002-0.005
AGZ0001jqm
redshift = 0.002378
Lateral apparent size = 60 arcseconds
Distance = 33.3 mly
Size = 9,700 ly
Image:
1 pixel = 100 light yearsAGZ0001v9e
redshift = 0.003065
Lateral apparent size = 200 arcseconds
Distance = 42.9 mly
Size = 41,600 ly
Image:
AGZ0001uqy
redshift = 0.003079
Lateral apparent size = 100 arcseconds
Distance = 43.0 mly
Size = 20,800 ly
Image:
AGZ0002bi7
redshift = 0.003172
Lateral apparent size = 200 arcseconds
Distance = 44.3 mly
Size = 43,000 ly
Image:
AGZ0001wd8
redshift = 0.003422
Lateral Apparent size = 180 arcseconds
Distance = 47.8 mly
Size = 41,700 ly
Image:
AGZ00034kx
redshift = 0.003446
Lateral apparent size = 90 arcseconds
Distance = 48.2 mly
Size = 21,000 ly
Image:
AGZ0005ddq
redshift = 0.004640
Vertical apparent size = 120 arcseconds
Distance = 61.7 mly
Size = 37,600 ly
Image:
Posted
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by
JeanTate
in response to planetaryscience's comment.
Interesting project, planetaryscience! 😃
You may find this old GZ forum OOTD thread of some interest for your project: Wednesday, 16th May, 2012: Seeing Is Believing (Or Is It?)
Posted
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Thanks for the link. The final goal(s) of my project is(are) to confirm an already found trend of nearer galaxies being of a larger size, a trend in morphology, color, and distance, and to find previously unknown extremely large galaxies.
Redshift = 0.005-0.01
AGZ0002crr
redshift = 0.005390
Vertical apparent size = 240 arcseconds
Distance = 75.1 mly
Size = 87,400 ly
Image:
AGZ00022vx
redshift = 0.006414
Vertical apparent size = 70 arcseconds
Distance = 89.2 mly
Size = 30,300 ly
Image:
AGZ0002aq8
redshift = 0.007474
Vertical apparent size = 60 arcseconds
Distance = 103.8 mly
Size = 30,200 ly
Image:
AGZ0005gi6
redshift = 0.008889
Lateral apparent size = 200 arcseconds
Distance = 123.2 mly
Size = 119,500 ly
Image:
AGZ0005yw5
redshift = 0.009990
Vertical apparent size = 100 arcseconds
Distance = 138.2 mly
Size = 67,000 ly
Image:
Posted
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to do list:
AGZ0002sex 0.010545
AGZ00045py 0.011468
AGZ0004bgq 0.012108
AGZ0005kyi 0.012555
AGZ0002jz9 0.012759
AGZ0001mt2 0.012799
AGZ0004j1y 0.0012809
AGZ0004bgo 0.012906
AGZ0001yqv 0.013099
AGZ0004ft1 0.013656
AGZ0002xp1 0.013709
AGZ00060na 0.013759
AGZ00014i0 0.013893
AGZ000277t 0.014407
AGZ0001oea 0.14647
AGZ0002k0h 0.014793
AGZ0003och 0.014924
AGZ00048xr 0.015271
AGZ0002q6a 0.015714
AGZ00047wp 0.015794
AGZ0002lao 0.015946
AGZ00046o6 0.016058
AGZ0003k38 0.016154
AGZ00032zd 0.016241
AGZ00062ep 0.016261
AGZ0005l9t 0.016348
AGZ0005sdv 0.016561
AGZ0005k0c 0.016591
AGZ000271y 0.016595
AGZ0002a2w 0.016725
AGZ0004sny 0.017149
AGZ0005kkb 0.017180
AGZ0004hzv 0.017279
AGZ0002qq3 0.017425
AGZ00063s0 0.017489
AGZ000615z 0.017505
AGZ0001ybw 0.017535
AGZ0001rkk 0.017609
AGZ0001qz7 0.017748
AGZ0002sp8 0.017772
AGZ0005qjp 0.018049
AGZ0005ckn 0.018139
AGZ0003aau 0.018303
AGZ0003kqm 0.018416
AGZ0004fpg 0.018419
AGZ0005076 0.018503
AGZ0001nlw 0.018622
AGZ0002jtv 0.018718
AGZ0002bo8 0.019240
AGZ0005nu5 0.019402
AGZ000573a 0.019473
AGZ000361x 0.019503
AGZ00040sy 0.019997Posted
