X-Ray Ejecta Kinematics of the Galactic Core-Collapse Supernova Remnant G292.0+1.8

Bhalerao, Jayant; Park, Sangwook; Dewey, Daniel; Hughes, John P.; Mori, Koji; Lee, Jae Joon

doi:10.1088/0004-637x/800/1/65

Cited by 22 publications

(47 citation statements)

References 41 publications

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“…Observationally, PWN G21.5-0.9 is detected in radio Wilson & Weiler 1976;Becker & Kundu 1976), IR (Gallant & Tuffs 1998, 1999, X-ray (De Rosa et al 2009;Tsujimoto et al 2011;Nynka et al 2014), and TeV γ-ray bands by HESS . Although Wang et al (1986) suggested that the age of PWN G21.5-0.9 is about 2000 yr because it might be the historical supernova of radius of the PWN is about 3 pc (Bhalerao et al 2015). Observationally, G292.0+1.8 has been observed in radio band (Gaensler & Wallace 2003), X-ray band (Hughes et al 2001), and GeV band with an upper limit (Ackermann et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Although the age of G292.0+1.8 is uncertain, R pwn ≈ 3.0 pc is given in Bhalerao et al (2015). With T age = 2700 yr , which is larger than 1600 yr given in Murdin & Clark (1979) and 2500 yr in Martin et al (2014), our results show that R pwn = 3.12 pc and B pwn ≈ 24 µG, which are consistent with R pwn = 3.5 pc and B pwn = 16 µG obtained by and R pwn = 3.5 pc and B pwn = 21 µG by Martin et al (2014).…”

Section: Group 2: Evolved Pwnementioning

confidence: 99%

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Multiband nonthermal radiative properties of pulsar wind nebulae

Zhu

Zhang

Fang

2018

A&A

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Aims. The nonthermal radiative properties of 18 pulsar wind nebulae (PWNe) are studied in the 1D leptonic model. Methods. The dynamical and radiative evolution of a PWN in a nonradiative supernova remnant are self-consistently investigated in this model. The leptons (electrons/positrons) are injected with a broken power-law form, and nonthermal emission from a PWN is mainly produced by time-dependent relativistic leptons through synchrotron radiation and inverse Compton process. Results. Observed spectral energy distributions (SEDs) of all 18 PWNe are reproduced well, where the indexes of low-energy electron components lie in the range of 1.0-1.8 and those of high-energy electron components in the range of 2.1-3.1. Our results show that F X /F γ > 10 for young PWNe; 1 < F X /F γ ≤ 10 for evolved PWNe, except for G292.0+1.8; and F X /F γ ≤ 1 for mature/old PWNe, except for CTA 1. Moreover, most PWNe are particle-dominated. Statistical analysis for the sample of 14 PWNe further indicate that (1) not all pulsar parameters have correlations with electron injection parameters, but electron maximum energy and PWN magnetic field correlate with the magnetic field at the light cylinder, the potential difference at the polar cap, and the spindown power; (2) the spin-down power positively correlates with radio, X-ray, bolometric, and synchrotron luminosities, but does not correlate with gamma-ray luminosity; (3) the spin-down power positively correlates with radio, X-ray, and γ-band surface brightness; and (4) the PWN radius and the PWN age negatively correlate with X-ray luminosity, the ratio of X-ray to gamma-ray luminosities, and the synchrotron luminosity.

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Section: Discussionmentioning

confidence: 99%

Section: Group 2: Evolved Pwnementioning

confidence: 99%

Multiband nonthermal radiative properties of pulsar wind nebulae

Zhu

Zhang

Fang

2018

A&A

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“…These line EWs are generally enhanced close to the projected position of the RS. 1 1 The projected position of the RS at r RS ∼ 130 and CD at r CD ∼ 220 are 1D approximations, estimated based on G292's kinematic structure in X-rays (Bhalerao et. al.…”

Section: Spatial Structure Of Ejecta Elements and Nei Plasma Parametersmentioning

confidence: 99%

“…The ejecta in G292 are characterized by high velocity (v radial 1000 km s −1 ) knots and filaments, also known as fast-moving knots or FMKs (Ghavamian et al 2005;Bhalerao et. al.…”

Section: Introductionmentioning

confidence: 99%

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Detailed X-Ray Mapping of the Shocked Ejecta and Circumstellar Medium in the Galactic Core-collapse Supernova Remnant G292.0+1.8

Bhalerao

Park

Schenck

et al. 2019

ApJ

Self Cite

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G292.0+1.8 (G292) is a young (∼3000 yr), Galactic textbook-type core-collapse supernova remnant (CCSNR). It is characterized by X-ray, optical and infrared emission from ejecta and circumstellar medium (CSM) features, and contains a pulsar (PSR J1124-5916) and pulsar wind nebula that have been observed in X-rays and radio. Previous studies have revealed a complex, dynamically evolving, oxygen-rich remnant, a striking relic from the explosion of a massive star. Here, using our deep (530 ks) Chandra ACIS data, we present high spatial-resolution maps (based on a regional grid size of a few arcsec) of the shocked CSM and metal-rich ejecta in G292. We make the first Chandra-detection of Fe-rich ejecta in G292. We identify the X-ray counterpart of the northern equatorial belt, a component of a ring-like CSM structure identified earlier in the infrared band. We show the detailed spatial distributions of ejecta enriched in O, Ne, Mg, Si, S and Fe. We find that the bulk of the Si, S and Fe-rich X-ray-emitting ejecta are located in the northwestern hemisphere of the remnant, opposite to the pulsar's projected angular displacement to the southeast from the SNR's center. This suggests that the pulsar's kick may have originated from gravitational and hydrodynamic forces during an asymmetric explosion, rather than from anisotropic neutrino emission. Based on abundance ratios and our estimated CSM and ejecta masses, we constrain the progenitor mass to 13 M M 30 M

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Young Supernova Remnants: Probing the Ejecta and the Circumstellar Medium

Vink

2020

Astronomy and Astrophysics Library

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X-Ray Ejecta Kinematics of the Galactic Core-Collapse Supernova Remnant G292.0+1.8

Cited by 22 publications

References 41 publications

Multiband nonthermal radiative properties of pulsar wind nebulae

Multiband nonthermal radiative properties of pulsar wind nebulae

Detailed X-Ray Mapping of the Shocked Ejecta and Circumstellar Medium in the Galactic Core-collapse Supernova Remnant G292.0+1.8

Young Supernova Remnants: Probing the Ejecta and the Circumstellar Medium

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