A dataset provided by the European Space Agency

Proposal ID 020639
Title INVESTIGATING THE X-RAY EMISSION FROM THE RADIO LOBES OF PICTOR A
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206390101

DOI https://doi.org/10.5270/esa-x4k03oe
Principal Investigator, PI Dr PAOLA GRANDI
Abstract An extended X-ray emission from the eastern radio lobe of Pictor A wasdiscovered in AO1. The X-ray spectrum is well described by both a thermal and anon-thermal model.The X-ray emission could be produced by circum-galactic gasshocked by the supersonic expanding radio lobe or, alternatively,by IC of CMBphotons by relativistic electrons in the lobe.If the X-ray emission isnon-thermal,the magnetic field in the lobe is estimated to be significativelylower than the equipartition value. We propose to re-observe Pictor A for 50ksec in order to:1)definitively establish the X-ray non-thermal/thermal natureof the radio lobe radiation and 2) check the equipartition assumption in theradio lobes.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-01-14T04:26:32Z/2005-01-14T19:21:46Z
Version 17.56_20190403_1200
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 2006-06-21T00:00:00Z
Last Update 2025-01-27
Keywords "xray nonthermal", "radio lobes", "magnetic field", "radio lobe radiation", "relativistic electrons", "equipartition value", "xray emission", "nonthermal model", "xray spectrum", "radio lobe", "cmb photons"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr PAOLA GRANDI, 2006, 'INVESTIGATING THE X-RAY EMISSION FROM THE RADIO LOBES OF PICTOR A', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x4k03oe