J/ApJ/889/21 Galactic planetary nebulae with Gaia data (Stanghellini+, 2020)
The population of Galactic planetary nebulae: a study of distance scales and
central stars based on the second Gaia release.
Stanghellini L., Bucciarelli B., Lattanzi M.G., Morbidelli R.
<Astrophys. J., 889, 21-21 (2020)>
=2020ApJ...889...21S 2020ApJ...889...21S (SIMBAD/NED BibCode)
ADC_Keywords: Planetary nebulae; Parallaxes, trigonometric
Keywords: planetary nebulae: general
Abstract:
We matched the astrometry of central stars (CSs) of spectroscopically
confirmed Galactic planetary nebulae (PNe) with DR2 Gaia parallaxes
(p), finding 430 targets in common with p>0 and |σp/p|<1. A
catalog of PNe whose CSs have DR2 Gaia parallaxes is presented in
Table 1. We compared DR2 parallaxes with those in the literature,
finding good correlation between the two samples. We used PNe
parallaxes to calibrate the Galactic PN distance scale. Restricting
the sample to objects with 20% parallax accuracy, we derive the
distance scale
log(Rpc)=-(0.226±0.0155)xlog(SHβ)-(3.920±0.215), which
represents a notable improvement with respect to previous ones. We
found that the ionized mass versus optical thickness distance scale
for Galactic PNe is not as constrained by the Gaia calibrators, but
gives important insight into the nature of the PNe, and is essential
to define the domain for our distance scale application. We placed the
CSs whose distance has been determined directly by parallax on the HR
diagram, and found that their location on the
post-asymptotic-giant-branch (AGB) H-burning evolutionary tracks is
typical for post-AGB stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 102 430 Catalog of DR2 parallaxes, derived parallax distances
and ancillary parameters for Galactic PNe
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See also:
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/A+AS/94/399 : Absolute fluxes and distances of PN (Cahn+, 1992)
J/ApJS/92/125 : Post-AGB evolution (Vassiliadis+, 1994)
J/ApJ/459/606 : Distances of planetary nebulae (Schneider+ 1996)
J/A+A/405/627 : Angular dimensions of 312 planetary nebulae (Tylenda+, 2003)
J/A+A/408/1029 : Coordinates of Galactic planetary nebulae (Kerber+, 2003)
J/ApJ/689/194 : Distances of galactic planetary nebulae (Stanghellini+, 2008)
J/A+A/588/A25 : Post-AGB & CSPNe evolutionary models (Miller Bertolami, 2016)
J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diag (Gaia Collaboration, 2018)
J/A+A/616/L2 : Planetary Nebulae distances in Gaia DR2 (Kimeswenger+, 2018)
J/A+A/630/A150 : Astrometric data for 211 GAPN (Gonzalez-Santamaria+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- PNG PN identifier (LLL.l+BB.b)
12- 30 I19 --- Gaia Gaia DR2 identifier
32- 37 F6.4 mas plx [0.04/8] Gaia DR2 parallax
39- 44 F6.4 mas e_plx [0.02/1.2] Uncertainty in plx
46- 47 A2 --- M Nebular morphology code (1)
49- 54 F6.2 arcsec theta [0.23/600]? Angular radius, θ
56- 61 F6.2 [mW/m2] logFHb [-14.6/-9.3]? log Hβ integrated flux;
in erg/s/cm2 units
63- 66 F4.2 [mW/m2] e_logFHb [0.01/0.6]? Uncertainty in logFHb
68- 72 F5.2 --- calpha [-1.03/4]? Extinction constant, Cα
74- 77 F4.2 --- e_calpha [0.01/1.2]? Uncertainty in calpha
79- 84 F6.3 [pc] logRpc [-3.4/0.63]? log linear nebula radius
calculated from the angular radius and parallax
86- 90 F5.3 [pc] E_logRpc [0.08/1.8]? Upper uncertainty in logRpc
92- 96 F5.3 [pc] e_logRpc [0.1/0.4]? Lower uncertainty in logRpc
98 A1 --- r_theta Reference for the angular radius (2)
99 A1 --- --- [,]
100 A1 --- r_logFHb Reference for the Hβ integrated flux (2)
101 A1 --- --- [,]
102 A1 --- r_calpha Reference for the extinction constant (2)
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Note (1): Nebular morphology code as follows:
R = Round;
E = Elliptical;
BC = Bipolar Core;
B = Bipolar;
P = Pointsymmetric.
Note (2): References as follows:
1 = This study;
2 = Stanghellini et al. (2016ApJ...830...33S 2016ApJ...830...33S);
3 = Tylenda et al. (2003, J/A+A/405/627);
4 = Cahn et al. (1992, J/A+AS/94/399);
5 = Acker et al. (1992secg.book.....A 1992secg.book.....A);
* = missing reference.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 08-Jul-2021