J/A+A/526/A6 Central stars of galactic planetary nebulae (Weidmann+, 2011)
Central stars of planetary nebulae: new spectral classifications and catalogue.
Weidmann W.A., Gamen R.
<Astron. Astrophys., 526, A6 (2011)>
=2011A&A...526A...6W 2011A&A...526A...6W
ADC_Keywords: Planetary nebulae ; Spectral types
Keywords: surveys - planetary nebulae: general - stars: evolution
Abstract:
There are more than 3000 confirmed and probable known Galactic
planetary nebulae (PNe), but central star spectroscopic information is
available for only 13% of them.
We undertook a spectroscopic survey of central stars of PNe at low
resolution and compiled a large list of central stars for which
information was dispersed in the literature.
We present a catalogue of 492 confirmed and probable CSPN and provide
a preliminary spectral classification for 45 central star of PNe. This
revises previous values of the proportion of CSPN with atmospheres
poor in hydrogen in at least 30% of cases and provide statistical
information that allows us to infer the origin of H-poor stars.
Based on data collected at the Complejo Astronomico El Leoncito
(CASLEO), which is operated under agreement between the Consejo
Nacional de Investigaciones Cientificas y Tecnicas de la Republica
Argentina y Universidades Nacionales de La Plata, Cordoba y San Juan,
Argentina.
Description:
We observed 45 PNs using the 2.15m telescope at Casleo, Argentina,
between 2005 November and 2008 December.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 157 492 Catalogue of CSPN (central stars of planetary
nebulae) (tables 4 and 5 of the paper)
refs.dat 123 116 References
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See also:
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
V/127 : MASH Catalogues of Planetary Nebulae (Parker+ 2006-2008)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- PNG PNG name
13- 34 A22 --- Name Main designation
35 A1 --- f_PNG [*] * indicates possible PN
36- 37 I2 h RAh Right ascension (J2000.0)
39- 40 I2 min RAm Right ascension (J2000.0)
42- 45 F4.1 s RAs Right ascension (J2000.0)
47 A1 --- DE- Declination sign (J2000.0)
48- 49 I2 deg DEd Declination (J2000.0)
51- 52 I2 arcmin DEm Declination (J2000.0)
54- 57 F4.1 arcsec DEs Declination (J2000.0)
59- 96 A38 --- SpT Spectral type of central star (1)
98-110 A13 --- r_SpT Reference for spectral type
113-142 A30 --- SpT2 Second spectral type of central star (1)
144-149 A6 --- r_SpT2 Reference for second spectra type
151-157 A7 --- RB Binary reference (2)
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Note (1): We use only two spectral classification if is it necessary, for
example when the spectral classification are very different. We indicated as
H-rich when the authors observed absorption of the Balmer series. In some
cases the authors do not give the spectral type of the CS, but they describe
the identified lines. We also include the CSPN with the indications done by
Miszalski et al. (2008, Cat. V/127) in the MASHII catalogue:
Blue, [WR] or wels. Note that the Blue aspect of CSPN images in MASHII is not
based on spectroscopic study.
Note (2): The reference that indicates whether the star is part of a binary
system (nothing if not). Although some CSPN are of a late MK spectral type,
it is accepted that the excitation source of the PN (if star and nebulae
physically associated) is a hitherto undetected hot star (Lutz
1977A&A....60...93L 1977A&A....60...93L). In those cases, we include the label bc-CSPN,
corresponding to binarity for the cool CSPN.
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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- 7 A7 --- Ref Reference code
9- 27 A19 --- BibCode BibCode
29- 53 A25 --- Aut Author's name
55-123 A69 --- Com Comments
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Acknowledgements:
Walter Weidmann, walter(at)mail.oac.uncor.edu
(End) Walter Weidmann [OAC, Argentina], Patricia Vannier [CDS] 29-Apr-2011