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-1413
J124122.31-042755.8
PGC042549-153 [internal use only]

Coordinates   [GALFIT]:
Equitorial 190.342941 -4.465491 [deg]
12:41:22.3072 -04:27:55.7678 [hms dms]
Galactic 298.151642 58.312798 [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]
PGC042549 g 7 2415 0.72 705.43 Full Field
r 7 2415 0.74 844.00

Distance Estimates

No distance estimates have been found.
We have assumed the dwarf is a satellite of PGC042549 at a distance of 41 Mpc.

Magnitudes

Galfit magnitudes
g 19.39
r 18.62
Extinction: SDSS MegaCam
g 0.09 0.09
r 0.06 0.06
i 0.05 0.05
SDSS values from IRSA, MegaCam values transformed following Gwyn 2008.
Surface Brightness
μ0 26.21
μRe 27.60
⟨ μRe ⟩ 27.00

Structural Parameters


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

Data Unbinned
Sersic Index 0.65
Effective Radius [arcsec]16.47
Axis Ratio 0.87
Position Angle -29.77

HI Data

No HI data was found for this dwarf.

Globular Clusters

Globular cluster candidates within 82.35 arcsec (5Re) of the dwarf:

ID RA, Dec Gaia SepSepg (g-r) (g-i) (u-g) IC
Flag [''][1/Re]
1 190.360100, -4.476502 0 73.524.4623.49±0.020.63±0.03 -- -- 0.05
2 190.363444, -4.458088 0 78.044.7421.37±0.000.77±0.00 -- -- 0.03

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] ['']
PGC042549 32.67 ETG 41 2822 11 10.40
NGC4602 41.63 LTG 35 2539 39 10.98
NGC4604 51.09 LTG 39 2658 13 9.93
NGC4546 96.77 ETG 14 1057 25 10.63
NGC4691 123.06 LTG 16 1110 26 10.31
NGC4697 134.45 ETG 11 1252 62 10.88
NGC4684 136.84 ETG 13 1560 21 10.20
NGC4690 195.05 ETG 40 2765 18 10.50
NGC4642 231.07 LTG 39 2644 21 10.35
NGC4653 237.16 LTG 39 2631 40 10.50