A new study towards PSR J1826-1334 and PSR J1826-1256 in the region of HESS J1825-137 and HESS J1826-130

Abstract

Aims. The goal of this paper is to detect synchrotron emission from the relic electrons of the crushed pulsar wind nebula (PWN) HESS J1825-137 and to investigate the origin of the $\gamma$-ray emission from HESS J1826-130.\\ Methods. The study of HESS J1825-137 was carried out on the basis of new radio observations centred at the position of PSR J1826-1334 performed with the Karl G. Jansky Very Large Array at 1.4 GHz in configurations B and C. To investigate the nature of HESS J1826-130, we reprocessed unpublished archival data obtained with XMM-Newton.\\ Results. The new radio continuum image towards PSR J1826-1334 reveals a bright radio source, with the pulsar located in its centre, which suggests that this feature could be the radio counterpart of the compact component of the PWN detected at high energy. The new 1.4 GHz radio data do not reveal emission with an extension comparable with that observed in $\gamma$-rays for the HESS J1825-137 source. On the other hand, the XMM-Newton study of the region including PSR J1826-1256 reveals an elongated non-thermal X-ray emitting nebula with the pulsar located in the northern border and a tail towards the peak of the very high energy source. The spectrum is characterized by a power law with a photon index going from 1.6 around the pulsar to 2.7 in the borders of the nebula, a behaviour consistent with synchrotron cooling of electrons. From our X-ray analysis we propose that HESS J1826-130 is likely produced by the PWN powered by PSR J1826-1256 via the inverse Compton mechanism.

9 pages, 5 figures, 4 tables. Accepted for publication in the Astronomy & Astrophysics Journal. The quality of the images has been degraded

References in corpus (6)

• The ATNF Pulsar Catalogue
• Kinematic Distances to Molecular Clouds identified in the Galactic Ring Survey
• Energy dependent gamma-ray morphology in the Pulsar wind nebula HESSJ1825-137
• Chandra Observation of PSR B1823-13 and its Pulsar Wind Nebula
• Turn-over in pulsar spectra around 1 GHz
• Search for radio counterpart of the Fermi/VERITAS PWN candidate in the SNR CTA 1

Cited by in corpus (12)

• On the TeV Halo Fraction in gamma-ray bright Pulsar Wind Nebulae
• Energy dependent morphology of the pulsar wind nebula HESS J1825-137 with Fermi-LAT
• A pulsar wind nebula origin of the LHAASO-detected UHE gamma-ray sources
• Search for continuous gravitational waves from ten H.E.S.S. sources using a hidden Markov model
• An extreme particle accelerator in the Galactic plane: HESS J1826$-$130
• Galactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide
• X-ray studies of the gamma-ray pulsar J1826-1256 and its pulsar wind nebula with Chandra and XMM-Newton
• The power-law component of the X-ray emissions from pulsar wind nebulae and their pulsars
• Radio study of HESS J1857+026. Gamma-rays from a superbubble?
• Pulsars as candidates of LHAASO sources J2226+6057, J1908+0621 and J1825-1326
• The Eel Pulsar Wind Nebula: a PeVatron-Candidate Origin for HAWC J1826-128 and HESS J1826-130
• Pulsars as candidates of LHAASO sources J2226+6057, J1908+0621 and J1825-1326: The leptonic origin