Discovery of mHz QPOs and burst rate evolution in the active Terzan 5 neutron star transient

Linares, M.; Altamirano, D.; Watts, A.; van der Klis, M.; Wijnands, R.; Homan, J.; Casella, P.; Patruno, A.; Armas-Padilla, M.; Cavecchi, Y.; Degenaar, N.; Kalamkar, M.; Kaur, R.; Yang, Y.; Rea, N.
Referencia bibliográfica

The Astronomer's Telegram, #2958

Fecha de publicación:
10
2010
Número de autores
15
Número de autores del IAC
0
Número de citas
18
Número de citas referidas
17
Descripción
We report on RXTE observations of the neutron star transient currently active in Terzan 5 (also known as IGR J17480-2446; ATels #2919, #2920, #2922, #2924, #2929, #2932, #2933, #2937, #2939, #2940, #2946), which has recently turned into a Z source (Altamirano et al., ATel #2952). The X-ray burst rate has increased gradually (see also ATels #2939, #2952) from October 13th (recurrence time of at least 55 min) to October 16th (recurrence time of 8 to 6 min), accompanied by a gradual increase in the persistent flux (2-16 keV intensity increasing from ~0.1 Crab to ~0.5 Crab).