Spectroscopic study of Of^+^ supergiants

DOI

The transition from early Of stars to WN-type objects is poorly understood. O-type supergiants with emission lines (OIf^+^) are considered to be intermediate between these two classes. The scope of this paper is to investigate the spectral variability of three Of^+^ supergiants. We constituted spectral time series of unprecedented quality for our targets (~200 spectra in total), essentially in the blue domain, covering timescales from a few hours up to a few years. Temporal Variance Spectrum and Fourier analyses were performed in order to characterize their spectral variability.

Cone search capability for table J/ApJ/704/964/table3 (Stellar parameters of HD 14947, HD 15570, and HD 16691, and estimated minimum and maximum rotation periods)

Identifier
DOI http://doi.org/10.26093/cds/vizier.17040964
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/704/964
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/704/964
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/704/964
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/704/964
Provenance
Creator De Becker M.; Rauw G.; Linder N.
Publisher CDS
Publication Year 2011
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Physics; Stellar Astronomy