A dataset provided by the European Space Agency

Name: Probing a PeV Accelerator: Origin of Very High-Energy Gamma Rays from W50
Published: 2021-04-21T00:00:00Z

Proposal ID	084049
Title	Probing a PeV Accelerator: Origin of Very High-Energy Gamma Rays from W50
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840490101
DOI	https://doi.org/10.57780/esa-tktokdf
Principal Investigator, PI	Prof Samar Safi-Harb
Abstract	Recently, very high energy TeV gamma-rays have been detected from the extendedsource W50/SS433 using the High-Altitude Water Cherenkov Observatory (HAWC).Multi-wavelength observations suggest that the extended lobes of W50 are beingimpacted by the SS433 jets tens of parsecs away. X-ray emission is found to fillthe radio lobe out to the radio ears, softening away from the black hole andwith evidence of hard X-rays in the innermost regions pointing to an extremeaccelerator. We propose a joint XMM/NuSTAR observation of the HAWC emission,coincident with the inner eastern lobe of W50. This broadband X-ray study will,for the first time, resolve and constrain both the non-thermal and thermal X-rayemission, providing a key insight into the nature of this Galactic PeVatron.
Publications	Hard X-Ray Emission from the Eastern Jet of SS 433 Powering the W50 Manatee Nebula: Evidence for Particle Reacceleration \|Safi-Harb Samar Mac Intyre Brydyn et al. \| ApJ \| 935-163 \| 2022 \| 2022ApJ...935..163S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...935..163S X-Ray Polarization of the Eastern Lobe of SS 433 \|Kaaret Philip Ferrazzoli Riccardo et al. \| ApJ \| 961-L12 \| 2024 \| 2024ApJ...961L..12K \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...961L..12K From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R An X-Ray Shell Reveals the Supernova Explosion for Galactic Microquasar SS 433 \|Chi Yi-Heng Huang Jiahui et al. \| ApJ \| 975-L28 \| 2024 \| 2024ApJ...975L..28C \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...975L..28C
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2020-03-24T19:06:26Z/2020-03-25T14:18:06Z
Version	18.02_20200221_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	2021-04-21T00:00:00Z
Last Update	2025-08-04
Keywords	"XMM", "multi wavelength", "hard xray", "NuSTAR", "radio lobe", " softening", "broadband xray", "key insight", "innermost region", "hawc emission", "ss433 jets tens", "source w50", "ears '", "xray emission", "galactic pevatron", "thermal xray emission", "energy gamma rays"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Samar Safi-Harb, 2021, 'Probing a PeV Accelerator: Origin of Very High-Energy Gamma Rays from W50', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-tktokdf