| Name | 069439 |
| Title | The new gamma-ray binary system 1FGL J1018.6-5856 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0694390101 |
| DOI | https://doi.org/10.5270/esa-ugavlc7 |
| Author | European Space Agency |
| Description | Fermi-LAT unveiled a 16.6 day modulation in flux and spectral shape in the bright gamma-ray source 1FGL J1018.6-5856. Using Swift/XRT, we singled out the X-ray counterpart as a bright source, displaying a large flux and spectral modulation along the 16.6 day cycle, remarkably stable from one cycle to another, featuring a peculiar flare-like peak in phase with the gamma-ray maximum. With an O6V optical counterpart, 1FGL J1018.6-5856 is a new member of the class of gamma-ray binaries, possibly similar (but with surprising differences!) to LS 5039. We propose a deep XMM-Newton observation devoted to study the sharp flare-like peak. Detailed (time-resolved) spectroscopy and a sensitive search for pulsations will shed light on the physics of such a powerful, enigmatic particle accelerator. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-01-09T12:08:33Z/2013-01-10T19:34:50Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2014-01-29T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2014, The New Gamma-Ray Binary System 1Fgl J1018.6-5856, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ugavlc7 |