NGC4640 Group
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Images & Catalogs
Group Properties
| SGA ID of Primary Galaxy |
Group Name | Group RA (degree) |
Group Dec (degree) |
Group Diameter (arcmin) |
Mosaic Diameter (arcmin) |
Number of Group Members |
|---|---|---|---|---|---|---|
| 204805 | NGC4640_GROUP | 190.7368429 | 12.2915722 | 2.414 | 7.243 | 3 |
Group Members
| SGA ID | Galaxy | Visual Morphology |
RA (degree) |
Dec (degree) |
HyperLeda |
|---|---|---|---|---|---|
| 66026 | PGC214021 | E | 190.7564143 | 12.2851272 | Link | 204805 | NGC4640 | S0-a | 190.7407953 | 12.2869622 | Link | 626898 | PGC042737 | E | 190.7117254 | 12.3086087 | Link |
Image Mosaics
Color mosaics showing the data (left panel), model (middle panel), and residuals (right panel).
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Elliptical Isophote Analysis
Geometry
This table provides several different measurements of the geometry and size of each galaxy.
Tractor |
HyperLeda |
Ellipse Moments |
Surface Brightness Threshold Radii (arcsec) |
Half-light Radii (arcsec) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SGA ID | Galaxy |
Type | n | r(50) (arcsec) | PA (degree) | e | R(25) | PA (degree) | e |
Size (arcsec) | PA (degree) | e |
R(24) | R(25) | R(26) |
g(50) | r(50) | z(50) |
| 66026 | PGC214021 | SER | 3.02 | 3.253 | 81.3 | 0.572 | 14.359 | 77.9 | 0.521 | 14.195 | 81.5 | 0.556 | 11.689 | 14.644 | 17.373 | 3.049 | 3.012 | 3.501 |
| 204805 | NGC4640 | SER | 1.58 | 31.516 | 64.1 | 0.489 | 48.319 | 53.2 | 0.445 | 60.651 | 52.9 | 0.401 | 49.174 | 63.688 | 79.024 | 26.777 | 26.747 | 26.718 |
| 626898 | PGC042737 | SER | 1.56 | 24.709 | 36.8 | 0.406 | 18.626 | 44.1 | 0.444 | 49.418 | 36.8 | 0.406 | 17.154 | 26.300 | 37.317 | 17.671 | 18.140 | 19.529 |
Photometry
This table provides the Tractor model photometry and the cumulative flux measured within the R(24), R(25), and R(26) radii (corresponding to the semi-major axis length of the galaxy at the 24, 25, and 26 magnitude per square arcsec surface brightness threshold, respectively).
| Curve of Growth Photometry | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tractor Photometry | < R(24) | < R(25) | < R(26) | Integrated | ||||||||||||
| SGA ID | Galaxy | g | r | z | g | r | z | g | r | z | g | r | z | g | r | z |
| 66026 | PGC214021 | 16.588 | 15.675 | 15.026 | 16.634 | 15.728 | 15.079 | 16.596 | 15.690 | 15.038 | 16.581 | 15.674 | 15.018 | 16.552 | 15.639 | 14.975 |
| 204805 | NGC4640 | 13.804 | 13.085 | 12.557 | 14.103 | 13.390 | 12.873 | 13.981 | 13.269 | 12.754 | 13.927 | 13.213 | 12.697 | 13.861 | 13.145 | 12.621 |
| 626898 | PGC042737 | 16.131 | 15.490 | 15.089 | 16.932 | 16.291 | 15.877 | 16.567 | 15.932 | 15.472 | 16.385 | 15.740 | 15.283 | 16.147 | 15.483 | 14.982 |
PGC214021 (SGA ID 66026)
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NGC4640 (SGA ID 204805)
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PGC042737 (SGA ID 626898)
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