J/A+A/360/439 Stellar and ionized gas kinematics in NGC 4672 (Sarzi+, 2000)
NGC 4672: A new case of an early-type disk galaxy with an
orthogonally decoupled core.
Sarzi M., Corsini E.M., Pizzella A., Vega Beltran J.C., Cappellari M.,
Funes J.G., Bertola F.
<Astron. Astrophys. 360, 439 (2000)>
=2000A&A...360..439S 2000A&A...360..439S
ADC_Keywords: Galaxies, rotation ; Radial velocities ; Velocity dispersion
Keywords: galaxies: individual: NGC 4672 - galaxies: kinematics and dynamics -
galaxies: spiral - galaxies: formation - galaxies: structure
Abstract:
We report the case of the early-type disk galaxy NGC 4672 as a new
example of a galaxy characterized by the orthogonal geometrical
decoupling between bulge and disk. The morphological features of this
galaxy are discussed as well as the velocity curves and velocity
dispersion profiles of stars and ionized gas along both its major and
minor axis. We conclude that NGC 4672 has structural (i.e. a bulge
elongated perpendicularly to the disk) and kinematical (i.e. a stellar
core rotating perpendicularly to the disk) properties similar to those
of the Sa NGC 4698. The presence of the isolated core suggests that
the disk component is the end result of the acquisition of external
material in polar orbits around a pre-existing oblate spheroid as in
the case of the ring component of AM 2020-504, the prototype of polar
ring ellipticals.
Objects:
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RA (2000) DE Designation(s)
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12 46 16.0 -41 42 19 NGC 4672
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables.dat 31 94 NGC 4672 major and minor axis stellar and
ionized gas kinematics (tables 3-6 of the paper)
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See also:
J/A+A/374/394 : Gas and stars kinematics in disc galaxies (Vega Beltran+ 2001)
J/A+AS/105/433 : Kinematical data of 14 early-type galaxies (Longo+ 1994)
J/A+AS/133/317 : Stellar kinematics in spiral galaxies (Heraudeau+ 1998)
J/A+AS/136/509 : Stellar kinematics in spiral galaxies. II. (Heraudeau+ 1999)
J/A+AS/122/521 : Kinematical data on early-type galaxies. I. (Simien+ 1997)
J/A+AS/126/15 : Kinematical data on early-type galaxies. II. (Simien+ 1997)
J/A+AS/126/519 : Kinematical data on early-type galaxies. III. (Simien+ 1997)
J/A+AS/131/287 : Kinematical data on early-type galaxies. IV. (Simien+ 1998)
J/A+AS/145/263 : Kinematical data on early-type galaxies. V. (Simien+, 2000)
J/A+AS/131/105 : NGC 6221 ionized gas kinematics (Vega Beltran+ 1998)
J/A+AS/127/117 : Kinematics of galaxies (Prugniel+ 1998)
J/A+A/382/488 : Stellar and ionized gas kinematics in NGC 2855 (Corsini+ 2002)
Byte-by-byte Description of file: tables.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Axis Data along major (maj) or minor (min) axis
5 A1 --- Kin [sg] Followed data concerns
s: stellar kinematics or
g: ionized gas kinematics
7- 12 F6.2 arcsec r Galactocentric distance
14- 17 I4 km/s HRV Heliocentric radial velocity
19- 20 I2 km/s e_HRV Heliocentric radial velocity error
22- 24 I3 km/s sigma Velocity dispersion
26- 27 I2 km/s e_sigma Velocity dispersion error
29 I1 --- Run [1/2]? Observing run (1=1998;2=1999)
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Acknowledgements: Marc Sarzi
(End) Patricia Bauer [CDS] 30-Aug-2000