MATLAS dwarfs - properties of individual galaxies



dwarf, stretch 1, BW dwarf, stretch 2, color dwarf, stretch 3, BW The galaxy at three different stretches.


Basic Information

IDs: MATLAS-1957
J150154.71+013733.0
NGC5813-53 [internal use only]

Coordinates   [GALFIT]:
Equitorial 225.477936 1.625834 [deg]
15:01:54.7061 +01:37:33.0038 [hms dms]
Galactic 359.282898 49.663273 [deg]

Morph: dEN
Notes: This galaxy is a UDG candidate.

This galaxy can be found in the following image:

Field Filter Nexp Texp IQ Background Image Link
[s] [''] [ADUs]
NGC5813 g 7 2415 0.76 931.43 Full Field
r 7 2415 0.69 1503.14

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC5813 at a distance of 31 Mpc.

Magnitudes

Galfit magnitudes
g 18.46
Extinction: SDSS MegaCam
g 0.19 0.18
r 0.13 0.13
i 0.10 0.09
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 24.06
μRe 25.45
⟨ μRe ⟩ 24.85

Structural Parameters


Galfit modeling, input
  Cleaned input image
Galfit modeling, model
  Galfit model
Galfit modeling, residual
  Residual image

Data Unbinned
Sersic Index 0.86
Effective Radius [arcsec]10.67
Axis Ratio 0.84
Position Angle -67.32

Properties of the nucleus

RA, Dec [deg]225.4778, 1.6260
offset [arcsec]0.29

The nucleus was not well modeled by Galfit. However, the coordinates were either: (a) extracted from Galfit if the model was centered, or (b) determined manually with ds9.

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 53.35 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 225.472766, 1.629238 0 22.292.0923.32±0.050.84±0.07 -- -- 0.02
2 225.481531, 1.630884 0 22.302.0923.62±0.060.48±0.11 -- -- 0.02

Local Environment

The ten nearest on-sky neighbors from ATLAS3D parent (ETG+LTG) catalog:

Galaxy separation Morph Dist Vel Re log(M*/M☉)
['] [Mpc] [km/s] ['']
NGC5813 11.78 ETG 31 1956 58 11.35
NGC5806 32.7 LTG 21 1359 32 10.60
NGC5831 41.07 ETG 26 1645 25 10.79
NGC5839 53.17 ETG 22 1220 17 10.32
NGC5838 60.01 ETG 22 1341 25 10.96
NGC5845 61.5 ETG 25 1472 6 10.48
NGC5846 68.62 ETG 24 1712 59 11.32
NGC5850 78.37 LTG 38 2556 68 11.24
NGC5854 104.77 ETG 26 1663 18 10.63
NGC5869 137.44 ETG 25 2065 20 10.62