| Proposal ID | 086188 |
| Title | What is powering the enigmatic HAWC source detected up to ~100 TeV |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861880101 |
| DOI | https://doi.org/10.57780/esa-qpwjbob |
| Principal Investigator, PI | Dr Kaya Mori |
| Abstract | 2HWC J1928+177 is a bright Galactic gamma-ray source detected up to 100 TeV. Itis a peculiar HAWC source, as VERITAS and HESS failed to detect its gamma-rayemission and there is no SNR or PWN nearby. At the HAWC source position, thereis a variable X-ray source, potentially associated with a bright IR source. Thenon-thermal X-ray spectrum and the lack of aperiodic variability indicate thatit is a TeV gamma-ray binary. XMM will determine the nature of the X-raycounterpart candidate, constrain its X-ray variability pattern for future TeVobservations and search for other X-ray sources. If the X-ray counterpartcandidate is not a TeV gamma-ray binary and no diffuse X-ray emission is found,the HAWC source would be the most remarkable dark accelerator with no counterpart below 10 TeV. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-11-13T14:11:02Z/2020-11-13T22:31:02Z |
| Version | 18.02_20200221_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 | 2021-12-05T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "nonthermal xray spectrum", "aperiodic variability", "diffuse xray emission", "supernova remnant", "future tev", "enigmatic hawc source", "pwn nearby", "variable xray source", "HESS", "hawc source", "xray variability pattern", "hess failed", "dark accelerator", "xray counterpart candidate", "hawc source position", "xray sources", "gamma ray emission", "bright ir source", "2hwc j1928", "XMM" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Kaya Mori, 2021, 'What is powering the enigmatic HAWC source detected up to ~100 TeV', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-qpwjbob |