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-342
J075811.43+235705.9
NGC2481-92 [internal use only]

Coordinates   [GALFIT]:
Equitorial 119.547630 23.951637 [deg]
07:58:11.4321 +23:57:05.8978 [hms dms]
Galactic 197.500671 24.751102 [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]
NGC2481 g 6 2070 0.87 430.00 Full Field
r 6 2070 0.76 908.67
i 6 1380 0.89 669.67

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC2481 at a distance of 32 Mpc.

Magnitudes

Galfit magnitudes
g 18.56
i 18.00
Extinction: SDSS MegaCam
g 0.14 0.14
r 0.10 0.10
i 0.07 0.07
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 24.02
μRe 25.40
⟨ μRe ⟩ 24.80

Structural Parameters


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

Data Unbinned
Sersic Index 1.21
Effective Radius [arcsec]10.02
Axis Ratio 0.79
Position Angle 25.82

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 50.1 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 119.553501, 23.962703 1 44.274.4221.44±0.010.73±0.011.02±0.01 -- 0.01
2 119.550787, 23.965132 0 49.684.9623.14±0.030.45±0.030.91±0.04 -- 0.08

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] ['']
NGC2481 17.2 ETG 32 2157 10 10.66
UGC03960 248.13 ETG 33 2255 17 10.07
NGC2577 348.34 ETG 31 2062 14 10.68
UGC04375 352.88 LTG 31 2061 37 10.49
NGC2592 411.75 ETG 25 1979 12 10.46
NGC2594 412.29 ETG 35 2362 7 10.26
NGC2365 506.89 LTG 41 2278 28 10.94
NGC2357 557.59 LTG 33 2275 22 10.52
UGC03751 611.28 LTG 34 2295 17 10.16
UGC04559 716.04 LTG 32 2085 14 10.31