| Proposal ID | 030408 |
| Title | Simultaneous XMM--HESS observations: testing the X-ray--TeV connection in BLLacs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304080301 |
| DOI | https://doi.org/10.5270/esa-88tqsa8 |
| Principal Investigator, PI | Dr Luigi Costamante |
| Abstract | We propose to perform a set of simultaneous X-ray--TeV observations on 2 TeVblazars in the southern hemisphere. We ask for 2 pointings of 20 and 15 ks each,on 2 consecutive XMM revolutions, matching the H.E.S.S. visibility window. Thisstrategy maximizes the simultaneous coverage (4-5hrs),to sample the shortestvariability timescales, and will allow to observe the source in 2 differentstates, as given by the characteristics flaring timescale of TeV blazars (one tofew days). Our goal is to strongly test and constrain the emission modelsstudying with unprecedented detail the changes in the particle distribution onthese two scales, shedding light onto the acceleration mechanism and allowing todisentangle EBL absorption effects from the blazar intrinsic TeV spectra. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-06-13T00:16:19Z/2005-09-28T23:24:47Z |
| 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 | 2006-10-21T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "strategy maximizes", "xmm hess", "acceleration mechanism", "consecutive xmm revolutions", "characteristics flaring timescale", "xray tev connection", "shedding light", "southern hemisphere", "xray tev", "particle distribution", "tev spectra", "tev blazar", "XMM", "emission models", "HESS", "visibility window", "shortest variability timescales" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Luigi Costamante, 2006, 'Simultaneous XMM--HESS observations: testing the X-ray--TeV connection in BLLacs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-88tqsa8 |