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Detection of optical bursts from the transient X-ray source XTE J2123-0581
C. D. Gneiding (1) - J. E. Steiner (1,2) - D. Cieslinski (3)
(1) Laboratório Nacional de Astrofísica/CNPq,
CP 21, 37500-000 Itajubá, Brazil (e-mail: clemens@lna.br)
(2) Instituto Astronômico e Geofísico,
Universidade de São Paulo,
CP 9638, 01065-970
São Paulo, Brazil (e-mail: steiner@lna.br)
(3) Instituto Nacional de Pesquisas Espaciais,
CP 515, 12201-970
São José dos Campos, Brazil (e-mail: deo@das.inpe.br)
Abstract:
We report the detection of four large optical bursts from the transient
X-ray burster XTE J2123-058. This is the third case of detection of
optical bursts in an X-ray transient during the active phase; the
bursts are recorded with high time resolution and signal-to-noise. The
total duration of the bursts is about 80 seconds and the amplitudes vary
from 0.7 to 1 magnitude.
X-rays: stars - stars: individual: XTE J2123-058 - X-rays: bursts