We have identified a central compact object (CCO) in the newly identifiedsupernova remnant G308.3-1.4. An interesting periodicity candidate of 1.4 hourshas been found in a short exposure by Chandra. Together with its fluxvariability, this object resembles the well-known CCO associated with RCW 103.However, different from the case in RCW 103, optical/IR counterpart of the CCOin G308.3-1.4 is unambiguously identified and its spectral energy distributionsuggests it as a promising compact binary candidate. We propose a XMM-Newtonobservation to confirm the nature of this object so as to search for the directevidence of a compact binary survived in a supernova.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-08-04T22:59:37Z/2012-08-05T17:18:15Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Prof Chung Yue Hui, 2013, 'Confirming the compact X-ray binary in a new supernova remnant G308.3-1.4', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xuskdtx
