MAXI J0556-332 is a transient neutron-star Z source
Abstract
We report on ongoing RXTE observations of the X-ray transient MAXI J0556-332. This source was discovered on 2011 January 11 (ATel #3102) and has since been monitored on an almost daily basis with RXTE.
A preliminary X-ray color analysis of ~470 ks of RXTE/PCA data reveals a somewhat chaotic pattern without a clear structure in the color-color (CD) and hardness-intensity (HID) diagrams. However, analysis of shorter time intervals (~5-10 days) reveals tracks that strongly resemble those of the Z sources, the brightest neutron-star low-mass X-ray binaries (LMXBs).- Publication:
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The Astronomer's Telegram
- Pub Date:
- September 2011
- Bibcode:
- 2011ATel.3650....1H
- Keywords:
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- X-ray;
- Binary;
- Neutron Star;
- Transient