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-1975
J150321.34+012551.4
NGC5831-v16 [internal use only]

Coordinates   [GALFIT]:
Equitorial 225.838898 1.430935 [deg]
15:03:21.3361 +01:25:51.367 [hms dms]
Galactic 359.432770 49.264908 [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]
NGC5831 g 7 2415 0.87 700.14 Full Field
r 7 2415 1.04 1057.14

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC5831 at a distance of 26 Mpc.

Magnitudes

Galfit magnitudes
g 19.23
r 18.74
Extinction: SDSS MegaCam
g 0.18 0.17
r 0.13 0.13
i 0.09 0.09
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 25.18
μRe 26.56
⟨ μRe ⟩ 25.96

Structural Parameters


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

Data Unbinned
Sersic Index 1.60
Effective Radius [arcsec]12.54
Axis Ratio 0.87
Position Angle -38.04

Properties of the nucleus

RA, Dec [deg]225.8389, 1.4309
offset [arcsec]0.04
mg24.62
(g-r)00.32

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 62.7 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 225.833655, 1.433699 0 21.341.719.78±0.000.47±0.00 -- -- 0.00

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] ['']
NGC5831 17.05 ETG 26 1645 25 10.79
NGC5839 33.81 ETG 22 1220 17 10.32
NGC5813 36.35 ETG 31 1956 58 11.35
NGC5845 41.67 ETG 25 1472 6 10.48
NGC5846 48.12 ETG 24 1712 59 11.32
NGC5838 50.82 ETG 22 1341 25 10.96
NGC5850 56.97 LTG 38 2556 68 11.24
NGC5806 57.3 LTG 21 1359 32 10.60
NGC5854 95.33 ETG 26 1663 18 10.63
NGC5869 112.86 ETG 25 2065 20 10.62