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-478
J091252.04+595913.2
NGC2768-73 [internal use only]

Coordinates   [GALFIT]:
Equitorial 138.216827 59.986988 [deg]
09:12:52.0375 +59:59:13.1561 [hms dms]
Galactic 155.499802 40.726547 [deg]

Morph: dEN
Notes: This galaxy is a tidal dwarf candidate.
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]
NGC2768 g 14 4830 1.01 534.14 Full Field
r 7 2415 1.12 597.14
i 7 1610 0.67 1946.29

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC2768 at a distance of 22 Mpc.

Magnitudes

Galfit magnitudes
g 17.49
r 16.92
i 16.57
Extinction: SDSS MegaCam
g 0.14 0.13
r 0.10 0.09
i 0.07 0.07
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 24.55
μRe 25.93
⟨ μRe ⟩ 25.33

Structural Parameters


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

Data Unbinned
Sersic Index 1.14
Effective Radius [arcsec]20.94
Axis Ratio 0.49
Position Angle -67.11

Properties of the nucleus

RA, Dec [deg]138.2173, 59.9872
offset [arcsec]1.15
mg24.81
(g-i)01.29

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 104.7 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 138.226647, 59.969012 0 67.093.223.72±0.020.82±0.031.13±0.03 -- 0.02
2 138.213039, 60.008202 1 76.673.6620.93±0.000.59±0.000.67±0.00 -- 0.01
3 138.166559, 59.996881 0 97.254.6424.33±0.030.51±0.050.75±0.07 -- 0.06
4 138.211420, 59.959592 0 99.114.7323.02±0.010.50±0.020.69±0.03 -- -0.01

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] ['']
NGC2768 9.79 ETG 22 1353 63 11.20
NGC2742 49.35 LTG 23 1289 45 10.50
NGC2726 59.56 LTG 26 1518 18 10.22
NGC2685 151.99 ETG 17 875 26 10.42
NGC2654 177.46 LTG 23 1347 26 10.67
NGC2880 192.56 ETG 21 1554 21 10.50
NGC2950 236.66 ETG 15 1322 15 10.48
NGC2710 277.11 LTG 39 2526 20 10.32
UGC05408 386.62 ETG 46 2998 7 10.12
NGC2701 389.49 LTG 36 2326 32 10.56