Emission line flaring in the SW Sex old nova V533 Herculis

Bibcode
2002AIPC..637..558R
DOI
10.1063/1.1518263
Rodríguez-Gil, Pablo; Martínez-Pais, Ignacio G.
Bibliographical reference

CLASSICAL NOVA EXPLOSIONS: International Conference on Classical Nova Explosions. AIP Conference Proceedings, Volume 637, pp. 558-561 (2002).

Advertised on:
11
2002
Number of authors
2
IAC number of authors
2
Citations
1
Refereed citations
0
Description
We present high time resolution spectroscopy of the non-eclipsing old nova V533 Herculis (N Her 1963). It is the second nova remnant affected by the `SW Sex syndrome'. A modulation of the equivalent width of the emission lines with a period of 23.33 min has been detected. This, together with the strong He II λ4686 emission characteristic of magnetic systems, leads us to link this period to the spin of a magnetic white dwarf. Similar flaring activity has been recorded in other SW Sex stars, namely, the old nova BT Mon, LS Peg and DW UMa, supporting the idea of these systems being magnetic accretors. Stationary emission features are also observed in the Balmer lines, which we attribute to the ejected nova shell.
Type
Non-refereed
Novae
Dwarf novae
Recurrent novae
Faint blue stars

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