SIMBAD references

2018ApJ...867...55X - Astrophys. J., 867, 55-55 (2018/November-1)

HESS J1640-465 a gamma-ray emitting pulsar wind nebula?

XIN Y.-L., LIAO N.-H., GUO X.-L., YUAN Q., LIU S.-M., FAN Y.-Z. and WEI D.-M.

Abstract (from CDS):

HESS J1640-465 is an extended TeV γ-ray source, and whether its γ-ray emission is from the shell of a supernova remnant (SNR) or a pulsar wind nebula (PWN) is still under debate. We reanalyze the GeV γ-ray data in the field of HESS J1640-465 using eight years of Pass 8 data recorded by the Fermi Large Area Telescope. An extended GeV γ-ray source positionally coincident with HESS J1640-465 is found. Its photon spectrum can be described by a power law with an index of 1.42 ± 0.19 in the energy range of 10-500 GeV and smoothly connects with the TeV spectrum of HESS J1640-465. The broadband spectrum of HESS J1640-465 can be well fit by a leptonic model with a broken power-law spectrum of electrons with an exponential cut off at ∼300 TeV. The spectral properties of HESS J1640-465 are broadly consistent with the characteristics of other sources identified as PWNe, such as the correlations between high-energy luminosity ratios and the physical parameters of pulsar, including the spin-down luminosity {dot}E and the characteristic age τc. All of these pieces of evidence support that the γ-ray emission of HESS J1640-465 may originate from the PWN powered by PSR J1640-4631 rather than the shell of the SNR G338.3-0.0.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): gamma rays: general - gamma rays: ISM - ISM: individual objects: HESS J1640-465 - ISM: supernova remnants - pulsars: general - radiation mechanisms: non-thermal

Nomenclature: Paragr. 2.2: [XLG2018] Source A (Nos A-B). Fig. 1, Table 1: [XLG2018] NewPtsN (Nos 1-9).

Status at CDS : Acronym for new objects described in the dictionary of nomenclature and being created in SIMBAD.

Simbad objects: 19

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