J/ApJ/656/168 Spectrophotometry in NGC 5253 (Lopez-Sanchez+, 2007)
The localized chemical pollution in NGC 5253 revisited:
results from deep echelle spectrophotometry.
Lopez-Sanchez A.R., Esteban C., Garcia-Rojas J., Peimbert M., Rodriguez M.
<Astrophys. J., 656, 168-185 (2007)>
=2007ApJ...656..168L 2007ApJ...656..168L
ADC_Keywords: Galaxies, spectra ; Spectrophotometry
Keywords: galaxies: abundances - galaxies: clusters: individual (NGC 5253) -
galaxies: kinematics and dynamics - galaxies: starburst
Abstract:
We present echelle spectrophotometry of the blue compact dwarf galaxy
NGC 5253 obtained with the VLT UVES. We have measured the intensities
of a large number of permitted and forbidden emission lines in four
zones of the central part of the galaxy. We detect faint CII and OII
recombination lines, the first time that these are unambiguously
detected in a dwarf starburst galaxy. The physical conditions of the
ionized gas have been derived using a large number of different line
intensity ratios.
Description:
The observations were made on 2003 March 30 with the Ultraviolet
Visual Echelle Spectrograph (UVES) at the Very Large Telescope (VLT)
Kueyen unit in Cerro Paranal Observatory (Chile).
Objects:
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RA (2000) DE Designation(s)
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13 39 55.9 -31 38 24 Knot A = KSRWR HII-2
13 39 56.0 -31 38 26 Knot B = KSRWR HII-1
13 39 56.0 -31 38 28 Knot C = KSRWR UV-1
13 39 55.5 -31 38 32 Knot D = KSRWR UV-2
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 95 181 Dereddened line intensity ratios (I(Hβ)=100)
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See also:
J/ApJ/603/503 : HST photometry in NGC 5253 and NGC 3077 (Harris+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 0.1nm Lambda Wavelength
10- 17 A8 --- Ion Ion identification
19- 26 A8 --- Mult Multiplet identification
28- 33 F6.3 --- FLambda Reddening curve normalized to Hβ using
the Seaton (1979MNRAS.187p..73S 1979MNRAS.187p..73S) law
35- 41 F7.3 --- ARatio ? The HII-2 region (knot A) intensity ratio
42 A1 --- u_ARatio Uncertainty flag on ARatio
44- 49 F6.3 --- e_ARatio ? Uncertainty in ARatio
51- 57 F7.3 --- BRatio ? The HII-1 region (knot B) intensity ratio
58 A1 --- u_BRatio Uncertainty flag on BRatio
60- 65 F6.3 --- e_BRatio ? Uncertainty in BRatio
67- 73 F7.3 --- CRatio ? The UV-1 region (knot C) intensity ratio
74 A1 --- u_CRatio Uncertainty flag on CRatio
76- 81 F6.3 --- e_CRatio ? Uncertainty in CRatio
83- 89 F7.3 --- DRatio ? The UV-2 region (knot D) intensity ratio
90 A1 --- u_DRatio Uncertainty flag on DRatio
92- 95 F4.2 --- e_DRatio ? Uncertainty in DRatio
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 10-Dec-2008