A dataset provided by the European Space Agency

Name 030407
Title X-ray characterization of the FIRST Flat Spectrum Sample
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304070101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304070201
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304070701
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304071201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304071301
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304071801

DOI https://doi.org/10.5270/esa-l9xfg9c
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
Temporal Coverage 2005-04-04T03:59:55Z/2006-08-19T07:38:39Z
Version 17.56_20190403_1200
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 2007-09-12T00:00:00Z
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