J/ApJS/163/173 UV spectrum of eta Car in 2003.5 (Gull+, 2006)
Eta Carinae across the 2003.5 minimum: the character and variability of the
ejecta absorption in the near-ultraviolet.
Gull T.R., Kober G.V., Nielsen K.E.
<Astrophys. J. Suppl. Ser., 163, 173-183 (2006)>
=2006ApJS..163..173G 2006ApJS..163..173G
ADC_Keywords: Stars, variable ; Spectra, ultraviolet ; Spectroscopy
Keywords: circumstellar matter - line: identification -
stars: individual (eta Carinae) - ultraviolet: stars
Abstract:
We present Hubble Space Telescope (HST) Space Telescope Imaging
Spectrograph (STIS) high-resolution near-ultraviolet (NUV) spectra of
Car's central source recorded before, during and after the 2003.5
spectroscopic minimum. Our focus is on the narrow absorption lines
formed in multiple circumstellar shells, superimposed on the broad
P Cygni stellar wind features, and how they respond to the flux
variations of Car across the minimum. Over 30 separate narrow-line
velocity components are identified: three around 146km/s, many
between 323 and 587km/s, and a few exceeding 1000km/s.
Description:
The echelle spectra presented in this atlas were obtained between 2001
October 1 and 2004 March 6 with the STIS E230H grating positioned at
selected spectral intervals to span the 2380-3160Å spectral region,
with an evolved progression of apertures at HST-imposed position
angles.
Objects:
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RA (2000) DE Designation(s)
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10 45 03.6 -59 41 04 eta Car = HD 93308
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 72 743 Identified transitions in the NUV spectrum
of eta Carinae
list.dat 39 13 List of spectra, with 7 pixel extraction
sp/* . 13 *Echelle spectra
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Note on sp/*: The data is processed using the CALSTIS software and it is
only an extracted part of the spectrum. In this paper we have used a 7
pixel (0.0875") extraction from the original 0.2x0.3 or 0.2x0.2
HST/STIS aperture too avoid scattered light from the surrounding
nebula. The raw data can be downloaded from the MAST web page.
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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/157/138 : UV spectrum of eta Car (Nielsen+, 2005)
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: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 F8.3 0.1nm LambdaO Observed wavelength in Angstroms
10- 34 A25 --- Line Line identification
36- 43 F8.3 0.1nm LambdaL Laboratory wavelength in Angstroms
45- 48 I4 km/s HV ? Heliocentric velocity
50- 54 A5 --- Note Line peculiarities (1)
56- 61 I6 cm-1 Elow Energy for transition lower level
63- 67 F5.2 [-] log(gf) ? Log of oscillator strength*statistical weight
69- 72 A4 --- r_log(gf) Reference on log(gf) (2)
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Note (1): Flag as follows:
IS = Interstellar line
EM = Emission line. Observed wavelength from
Zethson T. (2001, Ph.D. Thesis, Lund University)
a = Wavelength from Arvidsson K. 2003, Master Thesis, Lund University
b = Wavelength from Johansson S. private communication
c = Blended with OH 3079.23; log(gf) values reflects the sum of both lines
Note (2): References as follows:
B89 = Biemont et al., 1989A&A...209..391B 1989A&A...209..391B
F88 = Fuhr J.R., Martin G.A. and Wiese W.L. 1988,
J. Phys. Chem. Ref. Data 17, Suppl 4, Cat. VI/72
G73 = Garz T., 1973A&A....26..471G 1973A&A....26..471G
G75 = Goly A., Moity J. and Weniger S., 1975A&A....38..259G 1975A&A....38..259G
G94 = Gonzalez A.M., Ortiz M. & Campos J. 1994, Can. J. Phys. 72, 57
K = Kurucz R.L. unpublished extrapolations
K75 = Kurucz R.L. and Peytremann E 1975, SAO Special Report 362
K88 = Kurucz R.L. 1988, Trans IAU XXB M McNally, ed., Dordrecht: Kluwer, 168
K88m = Kurucz R.L. Data base for molecules:
http://kurucz.harvard.edu/LINELISTS/
K00 = Kling R. and Greismann U., 2000ApJ...531.1173K 2000ApJ...531.1173K
K01 = Kling R., Schnabel R. and Greismann U., 2001ApJS..134..173K 2001ApJS..134..173K
M75 = Mitchell C.J. 1975, J. Phys. B 8, 25
M88 = Martin G.A., Fuhr J.R. and Wiese W.L. 1988,
J. Phys. Chem. Ref. Data 17, Suppl 3, Cat. VI/72
M98 = Mullman K.L., Cooper J.C. and Lawler J.E., 1998ApJ...495..503M 1998ApJ...495..503M
N05 = Nilsson et al. J. Phys. B submitted
O91 = O'Brien et al. 1991, J. Opt. Soc. Am. B8, 1185
P01a = Pickering J.C., Johansson S. and Smith P.L. 2001,
Cat. J/A+A/377/361
P01b = Pickering J.C., Thorne, A.P. and Perez R., 2001ApJS..132..403P 2001ApJS..132..403P
R96 = Roueff E., 1996MNRAS.279L..37R 1996MNRAS.279L..37R
R98 = Rasssen A.J.J. and Uylings P.H.M. Data available at:
ftp://ftp.wins.uva.nl/pub/orth/iron/FeII.E1
T88 = Theodosiou C.E. and Curtis L.J. 1988, Phys. Rev. A 38, 4435s
W66 = Wiese W.L., Smith M.W. and Miles B.M. 1969, NSRDS-NBS 22
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 4 I4 0.1nm Lambda STIS band central wavelength
6- 15 A10 "DD/MM/YYYY" Obs.Date Date of observation
17- 39 A23 --- FileName Name of the file spectrum file in
sp subdirectory
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Byte-by-byte Description of file: sp/*
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Bytes Format Units Label Explanations
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1- 9 F9.4 0.1nm Lambda Wavelength
11- 24 E14.9 10mW/m2/nm Flux Flux in units of erg/s/cm2/Å
26- 38 E13.9 10mW/m2/nm e_Flux Error in Flux
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 02-Oct-2008