J/A+A/395/753 Spectroscopy of Coma early-type galaxies. II. (Wegner+, 2002)
Spatially resolved spectroscopy of Coma cluster early-type galaxies.
II. The minor axis dataset.
Wegner, G., Corsini, E.M., Saglia, R.P., Bender, R., Merkl, D.,
Thomas, D., Thomas, J., Mehlert, D.
<Astron. Astrophys. 395, 753 (2002)>
=2002A&A...395..753W 2002A&A...395..753W
ADC_Keywords: Clusters, galaxy ; Spectroscopy ; Velocity dispersion
Keywords: galaxies: elliptical and lenticular, cD - kinematics and dynamics -
stellar content - abundances - formation
Abstract:
We present minor axis, offset major axis and one diagonal long slit
spectra for 10 E and S0 galaxies of the Coma cluster drawn from a
magnitude-limited sample studied before. We derive rotation curves,
velocity dispersion profiles and the H3 and H4 coefficients of the
Hermite decomposition of the line of sight velocity distribution.
Moreover, we derive the line index profiles of Mg, Fe and Hbeta line
indices and assess their errors. The data will be used to construct
dynamical models of the galaxies and study their stellar populations.
Description:
Table 3 (table3.dat) gives spatially resolved kinematic parameters
(v, σ, H3, H4) for the sample galaxies as well as Table 4
(table4.dat) gives their measured line indices (Hβ, [MgFe], <Fe>,
Mgb, Mg2).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 76 190 Kinematic parameters
table4.dat 85 190 Line indices
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See also:
J/A+AS/141/449 : Paper I. The database. (Mehlert+, 2000)
VII/118 : NGC 2000.0 (Sky Publishing, ed. Sinnott, 1988)
VII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+, 1983)
VII/174 : Catalog of morpho. types in 55 rich clusters of gal.
(Dressler, 1980)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [GMP]
5- 8 I4 --- GMP GMP number (Cat. VII/42)
10- 15 F6.2 arcsec r Major axis distance from galaxy center
17- 22 F6.1 km/s v(r) Line of sight mean velocity
24- 27 F4.1 km/s e_v(r) Error of v(r)
29- 33 F5.1 km/s sigma Line of sight velocity dispersion
35- 38 F4.1 km/s e_sigma Error of sigma
40- 45 F6.3 --- H3 3. order coeff. of Gaussian Hermite
decomposition of the line of sight velocity
distribution (LOSVD)
47- 51 F5.3 --- e_H3 Error of H3
53- 58 F6.3 --- H4 4. order coeff. of Gaussian Hermite
decomposition of the LOSVD
60- 64 F5.3 --- e_H4 Error of H4
66- 68 I3 deg PA Slit position angle
70- 72 F3.1 arcsec Offset Slit offset with respect to the galaxy center
74 I1 --- Run Observing run
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [GMP]
5- 8 I4 --- GMP GMP number (Cat. VII/42)
10- 15 F6.2 arcsec r Major axis distance from galaxy center
17- 21 F5.3 0.1nm Hbeta Hβ absorption index
23- 27 F5.3 0.1nm e_Hbeta Error of Hbeta
29- 33 F5.3 0.1nm [MgFe] Absorption index [MgFe]
35- 39 F5.3 0.1nm e_[MgFe] Error of [MgFe]
41- 45 F5.3 0.1nm <Fe> Absorption index <Fe>
47- 51 F5.3 0.1nm e_<Fe> Error of <Fe>
53- 57 F5.3 0.1nm Mgb Absorption index Mgb
59- 63 F5.3 0.1nm e_Mgb Error of Mgb
65- 69 F5.3 mag Mg2 ? Absorption index Mg2
71- 75 F5.3 mag e_Mg2 ? Error of Mg2
77- 79 I3 deg PA Slit position angle
81- 83 F3.1 arcsec Offset Slit offset with respect to the galaxy center
85 I1 --- Run Observing run
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Acknowledgements: Enrico Maria Corsini ,
Roberto Saglia
(End) Patricia Bauer [CDS] 19-Sep-2002