Dust Properties of Super-Nova Remnant (Crab Nebula) Using AKARI Survey

Authors

  • A.K. Jha Central Department of Physics, Tribhuvan University, Nepal
  • A. Yadav Central Department of Physics, Tribhuvan University, Nepal
  • D.R. Upadhyay Department of Physics, Amrit Campus, Tribhuvan University, Nepal
  • B. Aryal Central Department of Physics, Tribhuvan University, Nepal

DOI:

https://doi.org/10.3126/jnphyssoc.v7i4.42933

Keywords:

AKARI, Crab Nebula, Dust Color Temperature, Dust mass, Visual Extinction

Abstract

We present the distribution of dust color temperature, Planck's function, dust mass, and visual extinction in the far-infrared (140 μm and 90 μm) AKARI surveys of the Crab Nebula using Sky View Virtual Observatory. With a systematic search of a supernova remnants, we found Crab Nebula at R. A. (J2000) / Decl. (J2000) = 05h 34' 31.94"/+22° 00' 52.20". The maximum flux is found to be 145.94 MJysr-1 at 140 μm and 177.01 MJysr-1 at 90 μm wavelength. The total dust mass of the Supernova remnant is estimated to be 6.11×1039 kg (3.07×109 Mʘ) and the dust color temperature is found in the range between 31.16 K to 47.11 K with mean value of temperature of 38.07 K. Similarly we obtained the value of Planck’s function in the range of 3.96 × 10-15 Wm-2sr-1Hz-1 to 1.96 × 10-14 Wm-2sr-1Hz-1 with average value 9.59 × 10-15 Wm-2sr-1Hz-1. The value of visual extinction ranges from 9.21 × 10-14 mag to 2.70 × 10-13 mag with mean value of 1.57 × 10-13 mag. The distribution trend of flux, dust color temperature, and Planck’s function are nearly similar, whereas dust mass and visual extinction follow an inverse relationship with the previous three parameters.

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Published

2021-12-31

How to Cite

Jha, A., Yadav, A., Upadhyay, D., & Aryal, B. (2021). Dust Properties of Super-Nova Remnant (Crab Nebula) Using AKARI Survey . Journal of Nepal Physical Society, 7(4), 64–70. https://doi.org/10.3126/jnphyssoc.v7i4.42933

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