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-2184
J230234.76+155844.9
NGC7454-35 [internal use only]

Coordinates   [GALFIT]:
Equitorial 345.644836 15.979139 [deg]
23:02:34.7597 +15:58:44.8998 [hms dms]
Galactic 88.227615 -39.446594 [deg]

Morph: dE
Notes: This galaxy is a UDG candidate.

This galaxy can be found in the following images:

Field Filter Nexp Texp IQ Background Image Link
[s] [''] [ADUs]
NGC7454 u 7 4900 1.09 209.57 Full Field
g 12 4140 0.95 821.14
r 12 4140 0.73 478.08
i 6 1380 0.87 556.00
NGC7465 u 7 4900 1.09 209.57 Full Field
g 12 4140 1.20 284.42
r 12 4140 0.73 478.08
i 6 1380 0.87 556.00

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC7465 at a distance of 29 Mpc.

Magnitudes

Galfit magnitudes
g 19.39
r 19.18
i 19.06
Extinction: SDSS MegaCam
g 0.31 0.30
r 0.22 0.21
i 0.16 0.16
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 25.17
μRe 26.55
⟨ μRe ⟩ 25.96

Structural Parameters


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

Data Unbinned
Sersic Index 1.20
Effective Radius [arcsec]11.61
Axis Ratio 0.80
Position Angle 69.24

HI Data

No HI data was found for this dwarf.

Globular Clusters

No globular cluster candidates found within 58.05 arcsec (5*Re) of the dwarf.

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] ['']
NGC7465 8.17 ETG 29 1960 8 10.44
NGC7463 10.28 LTG 35 2341 15 10.30
NGC7454 32.43 ETG 23 2020 26 10.51
NGC7448 36.33 LTG 29 2194 24 10.65
NGC7497 161.3 LTG 26 1708 49 10.51
UGC12300 193.91 LTG 34 2294 13 10.16
NGC7479 222.06 LTG 31 2381 48 11.03
NGC7625 268.26 LTG 25 1633 18 10.56
PGC071531 436.98 ETG 30 2030 8 10.01
NGC7347 444.13 LTG 33 2239 15 10.06