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-1177
J120545.86+615644.0
NGC4036-157 [internal use only]

Coordinates   [GALFIT]:
Equitorial 181.441071 61.945564 [deg]
12:05:45.8568 +61:56:44.0328 [hms dms]
Galactic 132.126617 54.359810 [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]
NGC4036 g 7 2415 0.98 413.43 Full Field
r 7 2415 0.99 506.14

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC4036 at a distance of 25 Mpc.

Magnitudes

Galfit magnitudes
g 18.36
r 17.79
Extinction: SDSS MegaCam
g 0.07 0.07
r 0.05 0.05
i 0.04 0.04
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 24.70
μRe 26.08
⟨ μRe ⟩ 25.48

Structural Parameters


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

Data Unbinned
Sersic Index 0.61
Effective Radius [arcsec]13.22
Axis Ratio 0.82
Position Angle 31.84

Properties of the nucleus

RA, Dec [deg]181.4397, 61.9451
offset [arcsec]2.82

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 66.1 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 181.441366, 61.945156 0 1.740.1323.28±0.020.58±0.03 -- -- 0.01
2 181.440978, 61.951232 0 20.211.5323.23±0.020.44±0.04 -- -- 0.03
3 181.453199, 61.938281 1 33.462.5320.23±0.000.52±0.00 -- -- 0.01
4 181.431233, 61.957979 0 47.513.5922.96±0.010.40±0.02 -- -- 0.07

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] ['']
NGC4041 27.56 LTG 23 1234 22 10.66
NGC4036 30.62 ETG 25 1385 29 11.07
NGC3945 118.11 ETG 23 1281 28 11.04
UGC07179 123.36 LTG 41 2630 15 10.64
NGC4205 126.79 LTG 25 1417 17 9.94
NGC3835 191.78 LTG 39 2466 18 10.68
NGC3796 207.74 ETG 23 1250 11 10.05
NGC4521 219.67 ETG 40 2511 16 10.88
NGC3838 289.1 ETG 24 1308 11 10.32
NGC3757 300.91 ETG 23 1245 9 10.17