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-1216
J121510.19+071840.4
NGC4191-101 [internal use only]

Coordinates   [GALFIT]:
Equitorial 183.792450 7.311216 [deg]
12:15:10.1893 +07:18:40.3761 [hms dms]
Galactic 277.811035 68.395836 [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]
NGC4191 g 7 2415 0.77 805.29 Full Field
r 7 2415 0.66 1016.43

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC4191 at a distance of 39 Mpc.

Magnitudes

Galfit magnitudes
g 20.02
r 19.48
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 25.94
μRe 27.32
⟨ μRe ⟩ 26.72

Structural Parameters


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

Data Unbinned
Sersic Index 0.66
Effective Radius [arcsec]12.35
Axis Ratio 0.51
Position Angle -41.11

Properties of the nucleus

RA, Dec [deg]183.7926, 7.3110
offset [arcsec]1.15
mg23.85
(g-r)0-0.09

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 61.75 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 183.790454, 7.323276 0 44.003.5623.74±0.030.53±0.04 -- -- 0.05

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] ['']
NGC4191 20.87 ETG 39 2646 11 10.55
NGC4224 22.61 LTG 39 2603 26 11.05
NGC4235 30.55 LTG 36 2410 27 11.08
NGC4233 34.66 ETG 34 2306 15 10.86
NGC4180 35.52 LTG 17 2096 14 10.11
IC3102 50.22 LTG 17 2235 31 10.14
NGC4215 55.7 ETG 32 2011 15 10.68
NGC4276 77.15 LTG 39 2618 23 10.22
NGC4260 95.96 LTG 38 1958 34 11.05
NGC4261 109.11 ETG 31 2212 38 11.38