2022
DOI: 10.1093/mnras/stac773
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The 2018 failed outburst of H 1743 – 322: Insight-HXMT, NuSTAR, and NICER views

Abstract: We studied the 2018 outburst of the black hole transient H 1743−322 with a series of Insight-HXMT, NICER and NuSTAR observations, covering the 1–120 keV band. With our broad-band X-ray spectral modelling, we confirm that the source remained in the low/hard state throughout the month-long outburst, although it became marginally softer at peak flux. We detected Type-C Quasi-periodic Oscillations (QPOs) and followed the evolution of their properties. The QPO frequency increased from ∼0.1 to ∼0.4 Hz during the ris… Show more

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Cited by 11 publications
(9 citation statements)
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“…The most recent failed-transition outburst of H1743-322, monitored by Insight-HXMT in 2018, has been reported by Wang et al (2022). Different from the outbursts presented above, this outburst remained in the LHS and never showed a significant hysteresis trace in the HID throughout the observed stage (see Figure 10(a)).…”
Section: Possible Relations Between Rms Differences and Hysteresis Ef...mentioning
confidence: 69%
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“…The most recent failed-transition outburst of H1743-322, monitored by Insight-HXMT in 2018, has been reported by Wang et al (2022). Different from the outbursts presented above, this outburst remained in the LHS and never showed a significant hysteresis trace in the HID throughout the observed stage (see Figure 10(a)).…”
Section: Possible Relations Between Rms Differences and Hysteresis Ef...mentioning
confidence: 69%
“…Type C QPOs usually appear in the HIMS, a stage that shows the significant transition in both the timing and spectral domains Remillard & McClintock 2006), where the properties of the type C QPO, like central frequency and fractional rms, evolve in a large value range. Previous studies have presented that the fractional rms of type C QPOs varies with the frequency (see Motta et al 2015;van Doesburgh & van der Klis 2020;Zhang et al 2020;Wang et al 2022). Here, we analyze a number of type C QPO samples across different outbursts of H1743-322 and present the QPO fractional rms dependence on fundamental frequency in both the rise and decay phases in Figure 5(a) for comparisons.…”
Section: Qpo Rms Dependence On Frequencymentioning
confidence: 97%
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“…In this model, the multiplicative constant is used to quantify the cross-calibration uncertainties between the three instruments of Insight-HXMT. The component thcomp is a novel thermal Comptonization convolution model to describe the broadband X-ray power-law continuum, which is presented as a replacement for the nthcomp model (Zdziarski et al 1996(Zdziarski et al , 2020Dziełak et al 2021;Wang et al 2022). To use the thcomp convolution model, we extend the energy grid from 0.1 keV to 500 keV with the XSPEC command ENERGIES to treat the limited response matrices at high or low energies.…”
Section: Spectral Changes During the Transitions Between Different Ki...mentioning
confidence: 99%
“…In this model, the multiplicative constant is used to quantify the cross-calibration uncertainties between the three instruments of Insight-HXMT. The component thcomp is a novel thermal Comptonization convolution model to describe the broadband X-ray power-law continuum, which is presented as a replacement for the nthcomp model (Zdziarski et al 1996(Zdziarski et al , 2020Dziełak et al 2021;Wang et al 2022). To use the thcomp convolution model, we extend the energy grid from 0.1 keV to 500 keV with the XSPEC command ENERGIES to treat with the limited response matrices at high or low energies.…”
Section: Spectral Changes During the Transitions Between Different Ki...mentioning
confidence: 99%