| Name | 090017 |
| Title | X-raying accretion atmosphere of the most massive spiral in the local universe |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900170101 |
| DOI | https://doi.org/10.57780/esa-dw2qh5s |
| Author | European Space Agency |
| Description | It is a fundamental prediction from the LambdaCDM cosmology that massive galaxies have an extended X-ray emitting corona produced by the accreted gas from the intergalactic space. Massive isolated spirals provide the best place to search for this accreted hot CGM and the missing baryons contained in it. Previous X-ray observations target on massive spirals either too distant or too nearby (M31). We propose mosaic XMM observations covering r<350kpc from the Sombrero, the most massive spiral at d<30Mpc. We will search for signatures of the accretion atmosphere via the radial distributions of the X-ray intensity, as well as the density, temperature, thermal pressure, radiative cooling timescale, and metallicity of the hot gas. We will also quantify the baryon budget of this extended hot CGM. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-06-23T16:22:19Z/2023-01-20T16:21:17Z |
| Version | 20.09_20221024_1724 |
| 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 | 2024-02-10T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2024, X-Raying Accretion Atmosphere Of The Most Massive Spiral In The Local Universe, 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-dw2qh5s |