2005A&A...436..967W


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST10:59:51

2005A&A...436..967W - Astronomy and Astrophysics, volume 436, 967-975 (2005/6-4)

Absolute spectrophotometry of northern compact planetary nebulae.

WRIGHT S.A., CORRADI R.L.M. and PERINOTTO M.

Abstract (from CDS):

We present medium-dispersion spectra and narrowband images of six northern compact planetary nebulae (PNe): BoBn 1, DdDm 1, IC 5117, M 1-5, M 1-71, and NGC 6833. From broad-slit spectra, total absolute fluxes and equivalent widths were measured for all observable emission lines. High signal-to-noise emission line fluxes of Hα, Hβ, [O44Sc III], [N44Sc II], and HeI may serve as emission line flux standards for northern hemisphere observers. From narrow-slit spectra, we derive systemic radial velocities. For four PNe, available emission line fluxes were measured with sufficient signal-to-noise to probe the physical properties of their electron densities, temperatures, and chemical abundances. BoBn 1 and DdDm 1, both type IV PNe, have an Hβ flux over three sigma away from previous measurements. We report the first abundance measurements of M 1-71. NGC 6833 measured radial velocity and galactic coordinates suggest that it is associated with the outer arm or possibly the galactic halo, and its low abundance ([O/H]=1.3x10–4) may be indicative of low metallicity within that region.

Abstract Copyright:

Journal keyword(s): ISM: planetary nebulae: general - techniques: spectroscopic - line: identification - ISM: abundances

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PN BoBn 1 PN 00 37 16.03 -13 42 58.6   16       ~ 125 1
2 PN M 1-5 PN 05 46 50.0109398369 +24 22 02.818353956           ~ 112 1
3 PN DdDm 1 PN 16 40 18.1519945483 +38 42 20.023281608   14.0       sd+G/K 132 0
4 PN M 1-71 PN 19 36 26.9207484077 +19 42 24.018831075           [WC] 79 1
5 NGC 6833 PN 19 49 46.5751757576 +48 57 40.076934646           ~ 166 0
6 IC 5117 PN 21 32 30.97 +44 35 47.5     16.7     ~ 287 0

    Equat.    Gal    SGal    Ecl

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2020.07.12-10:59:51

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