J/A+AS/136/509 Stellar kinematics in spiral galaxies. II. (Heraudeau+ 1999)
Stellar kinematical data for the central region of spiral galaxies. II.
Heraudeau, P., Simien, F., Maubon, G., Prugniel, P.
<Astron. Astrophys. Suppl. Ser. 136, 509 (1999)>
=1999A&AS..136..509H 1999A&AS..136..509H (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, rotation ; Radial velocities ; Rotational velocities ;
Velocity dispersion
Keywords: galaxies: spiral - galaxies: general - galaxies: kinematics & dynamics
Abstract:
We present a second dataset of absorption spectroscopy on the inner
region of spiral galaxies. We have determined the central velocity
dispersion for 42 Sa-Sc objects and, for 32 of them, stellar rotation
curves and velocity-dispersion profiles. Some of these profiles are
limited to the bulge, some others do reach a region dominated by the
luminosity of the disk. These data are intended to provide basic
material for the study of the mass distribution and dynamical status
in the central regions of spiral galaxies. Although no elaborate
bulge-and-disk photometric decomposition is performed, we estimate the
effects of limited resolution and contamination by disk light on the
central velocity dispersion of the bulge. All the material presented
in this paper, in particular the spectra, is available on-line.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 85 42 Catalog elements and kinematical results
table2.dat 38 42 Log of the observations
table3.dat 37 553 Profiles of velocity dispersion and rotation
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See also:
J/A+A/360/439 : Stellar and ionized gas kinematics in NGC 4672 (Sarzi+, 2000)
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/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: table1.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object identification
11-14 A4 --- Mtype *Morphological type
16-17 I2 h RAh Right Ascension 1950 (hours)
19-20 I2 min RAm Right Ascension 1950 (minutes)
22-25 F4.1 s RAs Right Ascension 1950 (seconds)
27 A1 --- DE- Declination 1950 (sign)
28-29 I2 deg DEd Declination 1950 (degrees)
31-32 I2 arcmin DEm Declination 1950 (minutes)
34-35 I2 arcsec DEs Declination 1950 (seconds)
37-41 F5.2 mag Btc Corrected integrated blue magnitude
43-47 F5.1 arcmin D25 Diameter at 25 B mag/arcsec**2
49-52 F4.2 --- Eps Ellipticity
54-56 I3 deg PA *?=999 Position angle of major axis
58-62 F5.2 mag Mb * Absolute blue magnitude
64-68 I5 km/s HRV Heliocentric radial velocity
69 A1 --- u_HRV Uncertainty flag on HRV
70-72 I3 km/s e_HRV ?=999 Mean error on HRV
74-76 I3 km/s sig0 ?=999 Central velocity dispersion
77 A1 --- u_sig0 Uncertainty flag on sig0
78-80 I3 km/s e_sig0 ?=999 Mean error on sig0
82-85 F4.2 --- fbulge ?=9.99 Resolution effect on bulge kinematics
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Note on Mtype: :
parameters Mtype through -Mb are catalog elements from the LEDA database
(status: LEDA1998).
parameters HRV through fbulge are determinations of the present work
Note on PA:
PA (North --> East) as given in the range [0, 180[ by the LEDA database
(status: LEDA1998).
Note on Mb:
Mb calculated from Btc and kinematical distance modulus, with H=75 km/s/Mpc
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object identification
11-18 A8 "DD/MM/YY" Date Date of observation
20 I1 --- Setup *Spectrograph setup
22-24 I3 deg PA *Position angle of slit
26 I1 --- Nexp Number of exposures
28-30 I3 min Texp Exposure time
32-34 F3.1 arcsec Seeing ? Seeing FWHM
35 A1 --- u_Seeing Uncertainty flag on Seeing
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Note on Setup:
Setup=1 corresponds to a dispersion of 66Å/mm
Setup=2 corresponds to a dispersion of 33Å/mm (not used in the present
subsample; presence of this column is justified by the similarity of
format with Paper I, 1998, Cat. J/A+AS/133/317).
Note on PA:
PA (North --> East) is in the range [0, 360[, and with the following
convention on the subsequent radius r in the profiles (Table 3):
- for 0<PA<180, r<0 corresponds to the eastern side of the galaxy,
- for 180<PA<360, r<0 corresponds to the western side,
- and for PA=0, r<0 is to the North.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object identification
11-13 I3 deg PA *Position angle of slit
15-20 F6.1 arcsec r *Radius (<0 and >0 on opposite semi-axes)
22-25 I4 km/s Vrot *?=999 Proj. mean stellar rotation velocity
27-29 I3 km/s e_Vrot ?=999 Mean error on Vmag
31-33 I3 km/s sigma *?=999 Projected velocity dispersion
35-37 I3 km/s e_sigma ?=999 Mean error on sigma
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Note on Vrot and sigma:
Rotation and dispersion velocities are projected along the line of sight;
rotation values are with respect to the point r=0.
Note on PA and r:
PA (North --> East) is in the range [0, 360[, and with the following
convention:
- for 0<PA<180, r<0 corresponds to the eastern side of the galaxy,
- for 180<PA<360, r<0 corresponds to the western side,
- and for PA=0, r<0 is to the North.
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Acknowledgements: Francois Simien
(End) Patricia Bauer [CDS] 03-May-1999