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Spectral evolution of nova V5558 Sgr (nova Sgr 2007): Pre-maximum and early decline stages
- Source :
-
New Astronomy . Nov2008, Vol. 13 Issue 8, p557-562. 6p. - Publication Year :
- 2008
-
Abstract
- Abstract: The spectral evolution of the slow nova V5558 Sgr has been monitored at the Loiano Observatory, Italy, during the pre-maximum stage and the early decline. The nova exhibited a long pre-maximum stage and several secondary outbursts after the initial maximum. The spectra during the pre-maximum stage showed emission lines of H I and Fe II. The spectra after the first maximum showed intense emission lines of H I, Fe II and emerging He I lines. During a secondary brightening absorption components appeared on H I, He II and Fe II lines. The spectroscopic evolution is similar to the evolution of the slow nova V723 Cas. The estimated distance of V5558 Sgr is 1.3±0.3kpc. [Copyright &y& Elsevier]
- Subjects :
- *STELLAR evolution
*COMPACT objects (Astronomy)
*SPECTRUM analysis
Subjects
Details
- Language :
- English
- ISSN :
- 13841076
- Volume :
- 13
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- New Astronomy
- Publication Type :
- Academic Journal
- Accession number :
- 32558514
- Full Text :
- https://doi.org/10.1016/j.newast.2008.03.001