|Title||X-ray characterization of the FIRST Flat Spectrum Sample|
|Author||Dr Giovanni Fossati|
|Description||The FIRST Flat Spectrum Sample (FFSS) is a deep radio-selected sample, unbiased with respect to x-ray emission. It is designed to enable us to determine the true census of the different types of blazars, resolving a long-standing uncertainty, and the first step towards understanding how Nature makes jets. This proposal aims to determine the "type" of FIRST blazars, which is easily determined from radio-optical-X color and basic information about X-ray spectrum (hardness ratios). We propose to complete the x-ray characterization of a first FFSS subsample by observing the remaining 13 sources for which no X-ray information currently exists. With this information we will be able to answer the key question: "What kind of jets does Nature make?"|
|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, 2007-09-12T00:00:00Z, 030407, 17.56_20190403_1200. https://doi.org/10.5270/esa-l9xfg9c|