X-Ray spectral evolution of PSR~J2032+4127 during the 2017 periastron passage
arXiv:1907.05685 · doi:10.3847/1538-4357/ab31a7
Abstract
We report X-ray data analysis results obtained from Chandra, XMM-Newton, NuSTAR and Swift observations of PSR J2032+4127 taken before, during, and after the periastron on 2017 November 13. We found the first clear evidence of a change in the X-ray spectral index over the passage period, thanks to a broad and sensitive spectral coverage by XMM-Newton and NuSTAR. We analysed the joint XMM-Newton and NuSTAR observation epochs with power-law and broken power-law model. We have obtained change in spectral parameters before and after the periastron passage for both models. The spectra get softened after the passage. The evolution of the spectral index and break energy before and after the periastron may indicate a change in the physical state of shock-accelerated electrons.
arXiv comment11 Pages, 4 Figures, Published in The Astrophysical Journal
References in corpus (34)
- On the Absorption of X-rays in the Interstellar Medium
- The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
- The Swift X-ray Telescope
- The European Photon Imaging Camera on XMM-Newton: The MOS Cameras
- The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
- The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
- Chandra X-Ray Observatory (CXO):Overview
- NuSTAR Observations of the Bullet Cluster: Constraints on Inverse Compton Emission
- Theory of high-energy emission from the pulsar/Be-star system PSR 125963 I: radiation mechanisms and interaction geometry
- Gamma-ray absorption in massive X-ray binaries
- Modeling interaction of relativistic and nonrelativistic winds in binary system PSR 1259-63/SS2883. I.Hydrodynamical limit
- Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
- Inverse Compton Emission of TeV Gamma Rays from PSR B1259-63
- Study of the Spectral and Temporal Characteristics of X-Ray Emission of the Gamma-Ray Binary LS 5039 with Suzaku
- Relativistic Doppler-boosted emission in gamma-ray binaries
- Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron
- Post-Periastron Gamma Ray Flare from PSR B1259-63/LS 2883 as a Result of Comptonization of the Cold Pulsar Wind
- Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period
- Multi-wavelength Observations of the Binary System PSR B1259-63/LS~2883 around the 2014 Periastron Passage
- Modeling high-energy light curves of the PSR B1259-63/LS 2883 binary based on 3-D SPH simulations
- Gamma-ray flare activity from PSR B1259-63 during 2014 periastron passage and comparison to its 2010 passage
- Suzaku Observations of PSR B1259-63: A New Manifestation of Relativistic Pulsar Wind
- A Luminous and Highly-variable Gamma-ray Flare Following the 2017 Periastron of PSR B1259-63/LS 2883
- High-Energy emissions from the Pulsar/Be binary system PSR J2032+4127/MT91 213
- Swift, XMM-Newton, and NuSTAR observations of PSR J2032+4127/MT91 213
- High-energy observations of PSR B1259-63/LS 2883 through the 2014 periastron passage: connecting X-rays to the GeV flare
- Gamma Ray Signal from the Pulsar Wind in the Binary Pulsar system PSR B1259-63/LS2883
- Modelling the multi-wavelength emissions from PSR B1259-63/LS 2883: the effects of the stellar disc on shock radiations
- The hour-timescale GeV flares of PSR B1259-63 in 2017
- Spectral analysis in orbital/superorbital phase space and hints of superorbital variability in the hard X-rays of LS I +61 303
- X-ray mapping of the stellar wind in the binary PSR J2032+4127/MT91 213
- The X-ray modulation of PSR J2032+4127/MT91 213 during the Periastron Passage in 2017
- The semicentennial binary system PSR J2032+4127 at periastron: X-ray photometry, optical spectroscopy and SPH modelling
- Gamma-rays from the binary system containing PSR J2032+4127 during its periastron passage