Proposal ID | 069439 |
Title | The new gamma-ray binary system 1FGL J1018.6-5856 |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0694390101 |
DOI | https://doi.org/10.5270/esa-ugavlc7 |
Principal Investigator, PI | Dr Andrea De Luca |
Abstract | Fermi-LAT unveiled a 16.6 day modulation in flux and spectral shape in thebright gamma-ray source 1FGL J1018.6-5856. Using Swift/XRT, we singled out theX-ray counterpart as a bright source, displaying a large flux and spectralmodulation along the 16.6 day cycle, remarkably stable from one cycle toanother, featuring a peculiar flare-like peak in phase with the gamma-raymaximum. With an O6V optical counterpart, 1FGL J1018.6-5856 is a new member ofthe class of gamma-ray binaries, possibly similar (but with surprisingdifferences!) to LS 5039. We propose a deep XMM-Newton observation devoted tostudy the sharp flare-like peak. Detailed (time-resolved) spectroscopy and asensitive search for pulsations will shed light on the physics of such a powerful, enigmatic particle accelerator. |
Publications |
|
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 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. |
Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
Date Published | 2014-01-29T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "ls 5039", "bright source", "gamma ray maximum", "spectral modulation", "xray counterpart", "shed light", "enigmatic particle accelerator", "sensitive search", "1fgl j1018", "J1018.6", "XMM-Newton", "gamma ray binary", "spectral shape", "o6v optical counterpart", "sharp flare", "fermi lat unveiled", "time resolved spectroscopy", "XMM", "deep xmm newton" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Andrea De Luca, 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 |