J/AZh/81/333 Spectral analysis of V510 Pup (Klochkova+, 2004)
Kinematics of the envelope of the post-AGB star V510 Pup -
nucleus of a future planetary nebula.
Klochkova V.G., Chentsov E.L.
<Astron. Zh. 81, 333 (2004)>
=2004AZh....81..333K 2004AZh....81..333K
=2004ARep...48..301K 2004ARep...48..301K
ADC_Keywords: Stars, variable; Spectroscopy ; Radial velocities
Abstract:
We have carried out a detailed identification of lines in the optical
spectrum of the post-AGB star V510Pup associated with the infrared
source IRAS08005-2356. Absorbtion lines of the ions FeII, TiII, CrII,
YII are presented at wavelengths from 4549 to 8546 A. The absorptions
YII and other s-process elements are anomalously strong.
There is also strong in the circumstellar C2 Swan bands. The
profiles of most of the lines (of hydrogen and metals) display
absorption-emission P Cyg type profiles. All the absorption lines are
shifted toward shorter wavelengths, suggesting an outflow of stellar
material. The expansion velocity of the envelope derived from the Swan
bands arising there is Vexp=42km/s. The highest wind velocity
determined from the absorptional wings of FeII(42) P Cygni profiles
reachs 240km/s. Based on the star's kinematic characteristics and the
amount of interstellar absorption, the distance to this object is
d∼3-4kpc.
Objects:
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RA (2000) DE Designation(s)
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08 02 40.7 -24 04 43 V510 Pup = IRAS 08005-2356
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 400 Spectral feature of V510 Pup and the residual
intensity and radial velocity derived from
various features
table2.dat 73 13 Average heliocentric radial velocities for
groups of lines and some individual lines
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Ident Identification of spectral line
20- 26 F7.2 0.1nm Lambda Wavelength expressed in Angstroem
27 A1 --- u_Lambda Uncertainty flag on Lambda
28 I1 --- Date [1/2] Observation date code:
1: 19/11/2002, 2: 23/11/1997
30- 33 F4.2 --- Resa ?=- First residual line intensity
34 A1 --- u_Resa Uncertainty flag on Res1
35 A1 --- --- [/]
36- 39 F4.2 --- Resb ?=- Second residual line intensity
40 A1 --- u_Resb Uncertainty flag on Res2
44- 45 I2 km/s RVa ? First radial velocity
46 A1 --- u_RVa Uncertainty flag on RV1
47 A1 --- --- [/]
48- 50 I3 km/s RVb ? Second radial velocity
51 A1 --- u_RVb Uncertainty flag on RV2
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 F3.1 --- Group Groups of lines (1.0: r->1; 0.6: r∼0.6)
5- 24 A20 --- Lines Identification of the lines
26- 42 A17 --- n_Lines Note on the lines
43- 45 I3 km/s RV2a ? Radial velocity on 23/11/1997
46 A1 --- u_RV2a Uncertainty flag on RV2a
47 A1 --- --- [/]
48- 50 I3 km/s RV2b ? Second value of radial velocity on 23/11/1997
52 I1 km/s e_RV2a ? rms uncertainty on RV2a
54- 55 I2 km/s RV1a ? Radial velocity on 19/11/2002
56 A1 --- --- [/]
57- 59 I3 km/s RV1b ? Second value of radial velocity on 19/11/2002
61 I1 km/s e_RV1a ? rms uncertainty on RV1a
63- 66 F4.1 km/s RV3 ? Radial velocity from other authors
67 A1 --- --- [-]
68- 69 I2 km/s RV4 ? Second radial velocity from other authors
73 I1 --- r_RV4 [1/4]? References for RV3 and RV4 values (1)
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Note (1): References for RV3 and RV4 values as follows:
1 = Slijkhuis et al., 1991A&A...248..547S 1991A&A...248..547S
2 = Bakker et al., 1997, Cat. J/A+A/323/469
3 = Te Lintel Hekkert, 1991, Cat. J/A+AS/90/327
4 = Hobbs, 1978ApJS...38..129H 1978ApJS...38..129H
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(End) Veta Avedisova [INASAN] 19-Apr-2005