| Name | 090460 |
| Title | X-raying an Odd Radio Circle near the LMC |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0904600101 |
| DOI | https://doi.org/10.57780/esa-[xxxxxxx] |
| Author | European Space Agency |
| Description | We propose a deep 100 ks observation of the Odd Radio Circle (ORC) J0624-6948, a low-surface brightness radio ring, lying between the Galactic plane and the Large Magellanic Cloud (LMC). With a diameter of 3.3 arcmin, a flatter radio spectral index, the lack of a prominent central galaxy as a possible host, and a larger apparent size compared to other ORCs, it is likely a supernova remnant in a rarefied environment, either from an isolated type Ia SN or a hypervelocity runaway massive star. The proposed observation will look for the faint extended X-ray counterpart expected, providing key physical parameters such as age and ambient density, and help to ascertain the type of progenitor. Alternative scenarios can be explored by characterising the point-source population within the ORC. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-03-15T22:39:46Z/2023-03-17T06:23:06Z |
| Version | 20.10_20230417_1156 |
| 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 | 2024-04-25T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2024, X-Raying An Odd Radio Circle Near The Lmc, 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-[xxxxxxx] |