J/ApJ/771/114 Spectral analysis of 100 evolved PNe from SPM (Pereyra+, 2013)
The deceleration of nebular shells in evolved planetary nebulae.
Pereyra M., Richer M.G., Lopez J.A.
<Astrophys. J., 771, 114 (2013)>
=2013ApJ...771..114P 2013ApJ...771..114P
ADC_Keywords: Planetary nebulae ; Spectra, red
Keywords: evolution; ISM: kinematics and dynamics; planetary nebulae: general;
stars: evolution
Abstract:
We have selected a group of 100 evolved planetary nebulae (PNe) and
study their kinematics based upon spatially-resolved, long-slit,
echelle spectroscopy. The data have been drawn from the San Pedro
Martir Kinematic Catalogue of PNe (SPM Catalogue). The aim is to
characterize in detail the global kinematics of PNe at advanced stages
of evolution with the largest sample of homogenous data used to date
for this purpose. The results reveal two groups that share kinematics,
morphology, and photo-ionization characteristics of the nebular shell
and central star luminosities at the different late stages under
study. The typical flow velocities we measure are usually larger than
seen in earlier evolutionary stages, with the largest velocities
occurring in objects with very weak or absent [NII]λ6584 line
emission, by all indications the least evolved objects in our sample.
The most evolved objects expand more slowly. This apparent
deceleration during the final stage of PNe evolution is predicted by
hydrodynamical models, but other explanations are also possible. These
results provide a template for comparison with the predictions of
theoretical models.
Description:
Every object in this sample was selected from the SPM Catalogue (Lopez
et al. 2012RMxAA..48....3L 2012RMxAA..48....3L). This catalogue contains high resolution
spectra of 614 galactic and 211 extragalactic PNe, observed over
several years from the Observatorio Astronomico Nacional in the Sierra
de San Pedro Martir (OAN-SPM) in Ensenada, B.C., Mexico. The
observations were obtained with the Manchester Echelle Spectrograph.
The spectral resolution is 11km/s, easily resolving the internal
kinematics of typical PNe.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 69 100 Evolved planetary nebula sample
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See also:
V/127 : MASH Catalogues of Planetary Nebulae (Parker+ 2006-2008)
IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
J/A+A/567/A12 : Chemical abundances in Galactic PNe (Garcia-Hernandez+, 2014)
J/A+A/563/A63 : Optical spectra of new low-excitation PNe (Hsia+, 2014)
J/A+A/561/A119 : Spectra of stars and planetary nebulae (Moni Bidin+, 2014)
J/MNRAS/431/2 : Hα fluxes of Galactic planetary nebulae (Frew+, 2013)
J/A+A/541/A98 : Interacting planetary nebulae (Ali+, 2012)
J/A+A/526/A6 : Central stars of galactic planetary nebulae (Weidmann+, 2011)
J/ApJ/714/1096 : Galactic planetary nebulae (Stanghellini+, 2010)
J/PASP/120/380 : Spatial orientation of planetary nebulae (Weidmann+, 2008)
J/ApJ/689/194 : Distances of galactic planetary nebulae (Stanghellini+, 2008)
J/A+A/479/155 : Proper motions of Galactic Planetary Nebulae (Kerber+, 2008)
J/A+A/408/1029 : Coordinates of Galactic planetary nebulae (Kerber+, 2003)
J/A+A/405/627 : Angular dimensions of 312 planetary nebulae (Tylenda+, 2003)
J/AN/323/484 : Accurate coordinates of Planetary Nebulae (Kohoutek+, 2002)
J/other/RMxAA/37.115 : Optical coordinates of southern PNe (Kimeswenger+, 2001)
J/ApJS/117/361 : PNe in NRAO VLA Sky Survey (Condon+ 1998)
J/A+AS/132/13 : Planetary nebulae radial velocities (Durand+ 1998)
J/A+AS/106/559 : HeII4686 line intensities of PN (Tylenda+, 1994)
J/ApJS/92/125 : Post-AGB evolution (Vassiliadis+, 1994)
J/A+AS/94/399 : Absolute fluxes and distances of PN (Cahn+, 1992)
http://kincatpn.astrosen.unam.mx/ : The SPM Kinematic Cat. of PNe home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Planetary nebula name
16 I1 --- f_Name [1/3]? Individual remark (1)
18- 28 A11 --- PNG PN G name (LLL.l+BB.b) if any
30- 31 I2 km/s VNII [9/48]? Bulk flow velocity from [NII]6584
(±2km/s)
33 A1 --- u_VNII [:] Uncertainty flag on VNII (1)
35- 36 I2 km/s VHa [12/54]? Bulk flow velocity from Hα
(±2km/s)
38- 40 A3 --- u_VHa [:, *] Uncertainty flag(s) on VHa (1)
42- 43 I2 km/s VOIII [18/58]? Bulk flow velocity from [OIII]5007
(±2km/s)
44 A1 --- u_VOIII [:] Uncertainty flag on VOIII (1)
46- 52 A7 --- NII? Is [NII]6584 emission present?
54- 55 A2 --- Group [HE M] Evolutionary group: Heighly Evolved (HE)
or Mature (M)
57- 60 F4.2 [Lsun] logL [1.6/4]? Luminosity for the central star
(from Frew 2008PhDT.......109F 2008PhDT.......109F)
62- 65 F4.2 [K] logT [4.7/5.3]? Log of temperature
67- 69 I3 --- I(HeII) [7/155]? HeII4686 intensity (Hβ=100).
(from Tylenda et al. 1994, J/A+AS/106/559)
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Note (1): Flag as follows:
1 = Slit position is not at center of the PN. Lower limit for Vflow.
2 = Upper limit for Vflow.
3 = In the original paper, PNG198.9-06.1 (=Kn 40) was a misprint for
G198.6-06.7; corrected at CDS.
* = Vflow measurement obtained from the FWHM of a Gaussian fit.
: = Very faint PN. Velocity measurements must be treated carefully.
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 23-Jan-2015