Classification of WR planetary nebulae (Acker+, 2003)

Details Classification of WR planetary nebulae (Acker+, 2003) Classification of WR planetary nebulae (Acker+, 2003)

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..34030659a&link_type=abstract

VizieR On-line Data Catalog: J/A+A/403/659. Originally published in: 2003A&A...403..659A

Physics

Planetary Nebulae, Stars: Wolf-Rayet, Line Profiles

Scientific paper

We analyse 42 emission-line nuclei of Planetary Nebulae (PNe), in the framework of a large spectrophotometric survey of [WC] nuclei of PNe conducted since 1994, using low/medium resolution spectra obtained at ESO and at OHP. We construct a grid of selected line-intensities (normalized to C IV-5806Å=100) ordered by decreasing ionisation potential going from 871 to 24eV. In this grid, the stars appear to belong clearly to prominent O (hot [WO1-4] types) or C (cooler [WC4-11] types) line-sequences, in agreement with the classification of massive WR stars applied to Central Stars of Planetary Nebulae (CSPNe) by Crowther et al. (1998MNRAS.296..367C, CMB98). We propose 20 selected line ratios and the FWHM of CIV and CIII lines as classification diagnostics, which agree well with the 7 line ratios and the FWHM proposed by CMB98.
(3 data files).

Affiliated with

Also associated with

No associations

Rating

Classification of WR planetary nebulae (Acker+, 2003) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Classification of WR planetary nebulae (Acker+, 2003), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classification of WR planetary nebulae (Acker+, 2003) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-988969