J/A+A/540/A133 η Car emission spectrum (1700-10400Å) (Zethson+, 2012)
η Carinae: linelist for the emission spectrum of the Weigelt blobs in the
1700 to 10400Å wavelength region.
Zethson T., Johansson S., Hartman H., Gull T.R.
<Astron. Astrophys. 540, A133 (2012)>
=2012A&A...540A.133Z 2012A&A...540A.133Z
ADC_Keywords: Stars, variable ; Spectroscopy
Keywords: line: identification - circumstellar matter -
stars: kinematics and dynamics - stars: individual: eta Carinae
Abstract:
We present line identifications in the 1700 to 10400Å region for
the Weigelt blobs B and D, located 0.1" to 0.3" NNW of η Carinae.
The aim of this work is to characterize the behavior of these
luminous, dense gas blobs in response to the broad high-state and the
short low-state of η Carinae during its 5.54-year spectroscopic
period.
Description:
The spectra were recorded in a low state (March 1998) and an early
high state (February 1999) with the Hubble Space Telescope/Space
Telescope Imaging Spectrograph (HST/STIS) from 1640 to 10400Å using
the 52"x0.1" aperture centered on Eta Carinae at position angle,
PA=332 degrees. Extractions of the reduced spectrum including both
Weigelt B and D, 0.28" in length along the slit, were used to identify
the narrow, nebular emission lines, measure their wavelengths and
estimate their fluxes.
A linelist of 2500 lines is presented for the high and low states of
the combined Weigelt blobs B and D.
Objects:
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RA (2000) DE Designation(s)
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10 45 03.59 -59 41 04.3 eta Car = HR 4210
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablec1.dat 103 2537 Identifications of 2500 emission lines in the
wavelength region 1700-10400Å from the STIS
spectra of the Weigelt blobs recorded in
March 1998 and February 1999
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See also:
J/A+A/304/415 : eta Car uvby-Hbeta phot. 1992-94 (van Genderen+, 1995)
J/A+A/343/847 : eta Car Geneva Photometry (van Genderen+ 1999)
J/A+A/419/215 : Sr filament emission lines near eta Car (Hartman+, 2004)
J/AJ/129/2018 : RXTE scaled fluxes of eta Car (Corcoran+, 2005)
J/A+A/493/1093 : BVRI light curves of eta Car (Fernandez-Lajus+, 2009)
J/other/NewA/15.108 : UBVRIHa of eta Car in 2009 (Fernandez-Lajus+ 2010)
J/ApJS/71/983 : UV spectrum of eta Car (Viotti+ 1989)
J/ApJS/157/138 : UV spectrum of eta Car (Nielsen+, 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/ApJS/181/473 : Analysis of the spectrum of eta Car (Nielsen+, 2009)
Byte-by-byte Description of file: tablec1.dat
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Bytes Format Units Label Explanations
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1- 8 F8.2 0.1nm lambdaO ? Observed wavelength (given in vacuum) (1)
9 A1 --- --- [-]
10- 11 I2 --- n_lambdaO ? Last 2 digits (wihtout decimals) for
wavelength interval
12 A1 --- u_lambdaO [?]
14- 20 F7.1 --- Int ? Intensity (in relative units)
22- 40 A19 --- Line Line identification
42- 73 A32 --- Trans Transition
75- 82 F8.2 0.1nm lambdaL ? Laboratory wavelength (given in vacuum) (1)
84-103 A20 --- Com Comments (2)
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Note (1): The identifications for the region 2424-2706Å are improved using
the line list by Nielsen et al. (2007, Cat. J/ApJS/168/289) based on high
resolution HST/STIS spectra. The identifications and laboratory wavelengths
are retrieved from the Kurucz database (Kurucz, 2001,
http://cfaku5.harvard.edu/atoms.html). The laboratory wavelengths for parity
forbidden lines are Ritz wavelengths derived from energy levels in the NIST
Atomic Spectra Database (2006).
Note (2): Comments used as follows:
Not in 98 = The feature is not present in the 1998 observation
Not in 99 = The feature is not present in the 1999 observation
Lyα = Primary H Lyα pumped fluorescence transition
Lyα sec. = Secondary H Lyα pumped fluorescence transition
4p-4s = A 4p-4s transition, discussed in section 5.5
Si III] = Fluorescence line pumped by Si III
(Hartman & Johansson, 2000A&A...359..627H 2000A&A...359..627H)
He II = Fluorescence line pumped by He II
(Hartman & Johansson, 2000A&A...359..627H 2000A&A...359..627H)
N IV] = Fluorescence line pumped by N IV]
(Hartman & Johansson, 2000A&A...359..627H 2000A&A...359..627H)
rd_sh = red shoulder due to extended stellar wind is noticeable out
to +400km/s
bl_sh = blue shoulder due to extended stellar wind is noticeable
out to -400km/s
? = the feature is weak and may not be a true emission line
?id = The identification is regarded as uncertain
?Eu = the upper level has an excitation energy >10eV, and the excitation
mechanism is questionable
?wl = Plausible identification, but the radial velocity differs from
the mean, -45km/s, by >15km/s
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Apr-2012