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-262
J031154.46-045335.2
NGC1248-113 [internal use only]

Coordinates   [GALFIT]:
Equitorial 47.976933 -4.893124 [deg]
03:11:54.4639 -04:53:35.2478 [hms dms]
Galactic 185.641296 -49.838417 [deg]

Morph: dE
Notes: This galaxy is a UDG candidate.
This galaxy shows tidal features (may not be visible in cutouts).

This galaxy can be found in the following image:

Field Filter Nexp Texp IQ Background Image Link
[s] [''] [ADUs]
NGC1248 g 7 2415 1.35 878.86 Full Field
r 7 2415 0.95 754.43
i 7 1610 0.53 975.71

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC1248 at a distance of 30 Mpc.

Magnitudes

Galfit magnitudes
g 20.04
r 19.43
Extinction: SDSS MegaCam
g 0.32 0.30
r 0.22 0.22
i 0.16 0.16
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 26.84
μRe 28.23
⟨ μRe ⟩ 27.63

Structural Parameters


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

Data Unbinned
Sersic Index 1.49
Effective Radius [arcsec]18.56
Axis Ratio 0.26
Position Angle 85.00

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 92.8 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 47.981032, -4.874921 0 67.163.6223.84±0.050.78±0.061.21±0.06 -- 0.01
2 47.984834, -4.914268 0 81.234.3823.37±0.030.73±0.031.00±0.03 -- 0.04
3 47.954960, -4.905443 0 90.424.8722.10±0.010.47±0.010.80±0.01 -- 0.04

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] ['']
NGC1248 24.02 ETG 30 2217 16 10.47
PGC012130 71.24 LTG 32 2319 24 10.20
NGC1222 124.44 ETG 33 2422 13 10.40
NGC1253 128.67 LTG 16 1713 51 10.03
NGC1266 160.2 ETG 30 2170 20 10.48
NGC1289 203.55 ETG 38 2792 18 10.70
NGC1320 222.75 LTG 37 2663 14 10.70
NGC1321 223.52 LTG 39 2848 9 10.49
NGC1121 370.41 ETG 35 2558 7 10.39
NGC1087 464 LTG 21 1517 44 10.50