|Title||Speca, the Spiral-host Episodic radio galaxy possibly tracing Cluster Accretion|
|Author||Dr Ananda Hota|
|Description||We recently discovered a unique radio-loud AGN, Speca, the optically dominant member of a small cluster at z=0.137. Speca is the second spiral-host large radio galaxy and also the second radio galaxy with three pairs of lobes. The outermost, relic lobes, separated by virgul1.3 Mpc, show an unexpectedly flat radio spectral index and a high fraction of linear polarization. These suggest large-scale shock-like dynamical processes acting in the cluster outskirts. From the distribution of member galaxies we rule out a cluster merger and are investigating the possibility of accretion (shock) from filaments. We wish to image the cluster environment of Speca with XMM to understand the AGN-cluster eco-system as it evolves via accretion, merger and feedback processes.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2014-01-23T00:00:00Z, 069451, 17.56_20190403_1200. https://doi.org/10.5270/esa-ybvigld|