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-365
J082133.61+222806.0
NGC2577-49 [internal use only]

Coordinates   [GALFIT]:
Equitorial 125.390045 22.468332 [deg]
08:21:33.6107 +22:28:05.9942 [hms dms]
Galactic 201.109283 29.301165 [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]
NGC2577 g 7 2415 0.69 1007.00 Full Field
r 7 2415 0.66 1060.57
i 7 1610 0.55 1534.00

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of NGC2577 at a distance of 31 Mpc.

Magnitudes

Galfit magnitudes
g 19.58
r 18.81
i 18.34
Extinction: SDSS MegaCam
g 0.16 0.15
r 0.11 0.11
i 0.08 0.08
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 25.05
μRe 26.44
⟨ μRe ⟩ 25.84

Structural Parameters


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

Data Unbinned
Sersic Index 1.37
Effective Radius [arcsec]10.08
Axis Ratio 0.87
Position Angle -17.24

Properties of the nucleus

RA, Dec [deg]125.3901, 22.4683
offset [arcsec]0.14
mg23.35
(g-i)00.77
(g-r)00.41

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 50.4 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 125.383299, 22.464205 0 26.902.6723.30±0.020.66±0.030.95±0.03 -- -0.02
2 125.403194, 22.466494 0 44.264.3921.40±0.000.55±0.000.78±0.01 -- 0.00

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] ['']
NGC2577 16.92 ETG 31 2062 14 10.68
UGC04375 25.44 LTG 31 2061 37 10.49
NGC2594 219.12 ETG 35 2362 7 10.26
NGC2592 223.52 ETG 25 1979 12 10.46
NGC2481 344.56 ETG 32 2157 10 10.66
UGC04559 550.06 LTG 32 2085 14 10.31
UGC03960 571.08 ETG 33 2255 17 10.07
NGC2648 575.4 LTG 30 2060 17 10.82
NGC2735 599.09 LTG 37 2450 10 10.52
NGC2750 631.79 LTG 39 2674 37 10.64