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-1855
J142204.34+033511.7
NGC5574-164 [internal use only]

Coordinates   [GALFIT]:
Equitorial 215.518066 3.586586 [deg]
14:22:04.336 +03:35:11.7081 [hms dms]
Galactic 349.476807 58.017754 [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]
NGC5574 g 14 4830 1.05 721.79 Full Field
r 7 2415 0.93 981.14

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC5574 at a distance of 23 Mpc.

Magnitudes

Galfit magnitudes
g 18.67
r 18.27
Extinction: SDSS MegaCam
g 0.12 0.11
r 0.08 0.08
i 0.06 0.06
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 24.84
μRe 26.23
⟨ μRe ⟩ 25.63

Structural Parameters


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

Data Unbinned
Sersic Index 0.95
Effective Radius [arcsec]13.90
Axis Ratio 0.73
Position Angle -50.14

Properties of the nucleus

RA, Dec [deg]215.5181, 3.5865
offset [arcsec]0.64

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 69.5 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 215.513874, 3.589044 0 17.481.2623.16±0.020.80±0.02 -- -- 0.02
2 215.521317, 3.582396 0 19.071.3723.98±0.030.70±0.04 -- -- -0.04
3 215.513139, 3.593233 0 29.772.1423.34±0.020.46±0.03 -- -- 0.08
4 215.522647, 3.570301 0 60.894.3823.62±0.020.38±0.04 -- -- 0.06

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] ['']
NGC5577 15.66 LTG 25 1489 33 10.20
NGC5576 24.24 ETG 25 1506 22 10.97
NGC5574 27 ETG 23 1589 13 10.23
NGC5566 33.34 LTG 25 1507 34 11.15
NGC5560 38.57 LTG 28 1729 19 10.41
NGC5638 115.77 ETG 26 1652 28 10.83
IC1024 144.7 ETG 24 1479 11 10.05
NGC5661 217.63 LTG 36 2354 13 9.94
NGC5584 238.49 LTG 26 1638 45 10.17
NGC5690 246.45 LTG 28 1753 28 10.61