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-1245
J121733.68+060059.9
NGC4215-20 [internal use only]

Coordinates   [GALFIT]:
Equitorial 184.390350 6.016628 [deg]
12:17:33.6839 +06:00:59.8596 [hms dms]
Galactic 280.525665 67.402794 [deg]

Morph: dE
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]
NGC4215 g 7 2415 0.79 911.57 Full Field
r 7 2415 0.67 1288.14

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC4215 at a distance of 32 Mpc.

Magnitudes

Galfit magnitudes
g 19.44
r 19.13
Extinction: SDSS MegaCam
g 0.06 0.06
r 0.04 0.04
i 0.03 0.03
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 25.74
μRe 27.13
⟨ μRe ⟩ 26.53

Structural Parameters


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

Data Unbinned
Sersic Index 0.77
Effective Radius [arcsec]14.75
Axis Ratio 0.51
Position Angle -89.28

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 73.75 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 184.386333, 6.004681 0 45.353.0723.93±0.050.65±0.07 -- -- -0.04
2 184.379674, 6.026123 0 51.283.4823.20±0.020.45±0.03 -- -- 0.01
3 184.388497, 6.033100 0 59.674.0522.79±0.010.55±0.02 -- -- 0.03
4 184.407252, 6.015757 1 60.594.1120.52±0.000.55±0.00 -- -- 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] ['']
NGC4249 25.88 ETG 39 2618 13 10.10
NGC4260 27.44 LTG 38 1958 34 11.05
NGC4257 28.93 LTG 41 2756 11 10.25
NGC4261 29.58 ETG 31 2212 38 11.38
NGC4264 32.02 ETG 38 2518 14 10.51
NGC4215 33.76 ETG 32 2011 15 10.68
IC3102 40.45 LTG 17 2235 31 10.14
NGC4266 42.98 LTG 17 1536 19 9.97
NGC4259 46.96 ETG 37 2497 8 10.19
NGC4270 47.35 ETG 35 2331 16 10.79