J/ApJS/157/138 UV spectrum of eta Car (Nielsen+, 2005)
The ultraviolet spectrum of eta Carinae: investigation of the ejecta absorption.
Nielsen K.E., Gull T.R., Kober G.V.
<Astrophys. J. Suppl. Ser., 157, 138-146 (2005)>
=2005ApJS..157..138N 2005ApJS..157..138N
ADC_Keywords: Stars, variable ; Spectra, ultraviolet ; Spectroscopy
Keywords: circumstellar matter - line: identification -
stars: individual (η Carinae) - ultraviolet: stars
Abstract:
We have investigated the far- through mid-UV (1150-2360Å) spectrum
of η Carinae during the late stages of its broad maximum using the
Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph
(STIS) moderate dispersion echelle modes. The η Car spectrum is a
mixture of absorption and emission lines from the surrounding nebula
superimposed on broad stellar wind features. This paper provides a
description of the observed spectrum including the wind features, the
interstellar absorption, and the emission spectrum from the
surrounding nebula, but with the emphasis on the absorption spectrum
formed in the foreground ejecta. The ejecta absorption spectrum has a
complicated velocity structure in which two velocity structures, at
-146 and -513km/s, are easily distinguished.The complete spectrum,
with nebular and interstellar line identifications, is available in
the electronic edition of the paper.
Description:
This analysis uses UV spectra between 2000 March and 2003 May acquired
obtained with the E140M (1150-1700Å) and the E230M (1650-2360Å)
gratings.
Objects:
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RA (2000) DE Designation(s)
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10 45 03.6 -59 41 04 eta Car = V* eta Car
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 73 1737 Identified transition in the UV/NUV spectrum of
Eta Car
refs.dat 119 31 References
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See also:
J/ApJS/71/983 : UV spectrum of eta Car (Viotti+ 1989)
J/A+A/304/415 : uvby-Hbeta photometry of Eta Car 1992-94 (van Genderen+, 1995)
J/A+A/343/847 : Geneva Photometry of Eta Car (van Genderen+ 1999)
J/A+A/419/215 : Emission lines of eta Car (Hartman+, 2004)
J/AJ/129/2018 : RXTE scaled fluxes of eta Car (Corcoran+, 2005)
J/ApJS/163/173 : UV spectrum of eta Car in 2003.5 (Gull+, 2006)
J/ApJS/168/289 : NUV spectrum of eta Car in 2003.5 (Nielsen+, 2007)
J/A+A/493/1093 : BVRI light curves of eta Car (Fernandez-Lajus+, 2009)
J/ApJS/181/473 : Eta Carinae: visible and near-IR analysis (Nielsen+, 2009)
J/other/NewA/15.108 : UBVRIHalpha of eta Car in 2009 (Fernandez-Lajus+ 2010)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 0.1nm OWave Observed wavelength in Angstroms
12- 38 A27 --- ID Line identification
40- 47 F8.3 0.1nm LWave Laboratory wavelength in Angstroms
49- 53 I5 km/s HV ? Heliocentric velocity
55- 56 A2 --- f_ID Interstellar or emission line (1)
58- 62 I5 cm-1 Elow ? Lower level transition energy
64- 68 F5.2 [-] log(gf) ? Log of the oscillator strength*statistical
weight
70- 73 A4 --- r_log(gf) References on log(gf)
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Note (1): Flag on ID, defined as follows:
IS = Interstellar line
EM = Emission line. Observed wavelength from Zethson T.
(2001, Ph.D. Thesis, Lund University)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Ref Reference designation
6- 24 A19 --- Bibcode Bibcode
26- 58 A33 --- Aut Author's name
60-119 A60 --- Com Comment
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 22-Aug-2005