1994A&A...285..739E

Query : 1994A&A...285..739E

1994A&A...285..739E - Astronomy and Astrophysics, volume 285739-750 (1994/5-3)

The multi-gaussian expansion method: a tool for building realistic photometric and kinematical models of stellar systems II. Application to the central region of the Sombrero Galaxy (NGC 4594).

EMSELLEM E., MONNET G., BACON R. and NIETO J.-L.

Abstract (from CDS):

We have applied the Multi-Gaussian Expansion (MGE) technique for a photometric analysis of a new high resolution R' image of the central region of NGC 4594 (M 104). The deconvolved image reveals a nucleus offset by about 0.2 arcsec. from the bulge, and a bright unresolved nuclear disk. Oblate self-gravitating dynamical models have been derived, again using the MGE formalism described in Paper I, and compared to previously published mean velocity and velocity dispersion profiles. They imply a centrally condensed dark mass of about 1.0x109 M☉, and a tangentially anisotropic cold inner disk.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: NGC 4594 - galaxies: structure - galaxies: luminosity function, mass function - galaxies: kinematics and dynamics of - galaxies: nuclei - image processing

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2

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