| Proposal ID | 092132 |
| Title | The unknown giant: a backyard beacon of large-scale structure formation |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0921320101 |
| DOI | https://doi.org/10.57780/esa-tekwvsv |
| Principal Investigator, PI | Dr Quirino DAmato |
| Abstract | In the ROSAT all-sky survey we serendipitously discovered an extended (~22x8arcmin), irregular-shaped, X-ray diffuse emission located in H-ATLAS GAMA12field. The only nearby galaxy overdensities are two small groups of 3 galaxieseach, spectroscopically confirmed at z=0.073 and z=0.11, located at the edge ofthe X-ray emission. In addition, an NVSS/FIRST radio-galaxy is located exactlyalong the direction that connects the two brightest spots of the X-ray emissionand is not detected in any optical-to-FIR band. We propose a very cheap XMMobservation (14ks) of the entire X-ray emission that may correspond to arelatively nearby unvirialized large-scale structure, thanks to which we willmeasure its redshift, disentangle its morphological components, and unveil its emission mechanisms. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-12-09T10:54:03Z/2023-12-09T18:20:43Z |
| Version | 21.51_20241115_1113 |
| 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 | 2024-12-21T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Quirino D'Amato, 2024, 'The unknown giant: a backyard beacon of large-scale structure formation', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-tekwvsv |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |