Study of ambient environment around Asymptotic Giant Branch Carbon Star: IRAS 01142+6306

Khanal, Laxman; Upadhyay, Devendra Raj; Jha, Ajay Kumar; Aryal, B.

doi:10.3126/bibechana.v16i0.20998

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…These structures are ruled by the bubble and super bubbles produced by the supernova explosion and high-pressure events(citation). Hydrogen is the prominent component in ISM in different forms: Molecular forms(H2), Neutral forms, and ionized form(HII) [5]. Dust in ISM absorbs and re-emits the ultraviolet radiation in the infrared band.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Dust Color Temperature, Planck’s Function, and Dust Mass around PSR J1240-4124

et al. 2022

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The dust properties in the interstellar medium play an important role in structure formation and extinction of highenergy radiation. This study performed an investigation of the physical properties like distribution of dust color temperature, Planck’s function, and dust mass of the cavity around the pulsar PSR J1240-4124 in the IRIS and the AKARI surveys. In our study, the dust color temperature in the IRIS survey is found to be in the range of 23.607 ± 0.012 K to 24.342 ± 0.012 K with an offset of 0.735 K. Such low offset temperature indicates that the isolated cavities are in thermal equilibrium. In the case of the AKARI survey, the dust temperature was found to be in the range of 16.123 ± 0.017 K to 18.802 ± 0.017 K with an offset of 2.679 K. The average dust mass in IRIS survey is found to be 2.1 × 10−4 M⊙ and that of the AKARI is 8.1× 10−4 M⊙. The size of the structure in the IRIS map is 14.62 pc × 6.24 pc and that of the AKARI map is 5.80 pc × 0.17 pc. The angle of inclination for the selected cavity region is found to be 73.330° in IRIS and that of AKARI is 110.260° . We have tried to present the relationship among the different physical parameters and compare the results in the IRIS and the AKARI surveys. Our findings are similar to those obtained in previous studies of other cavity structures around pulsars. This confirms the validity of the existing results for a new cavity around PSR J1240-4124.

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Section: Introductionmentioning

confidence: 99%

Distribution of Dust Color Temperature, Planck’s Function, and Dust Mass around PSR J1240-4124

et al. 2022

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“…These facts suggest that interstellar dust plays an important role in shaping mechanism of ISM. Several authors studied about dust environment around Nebula, Pulsars, AGB stars and white dwarfs using IRAS, IRIS AKARI band and survey they found two digit and very low kelvin dust color temperature [17][18][19][20][21][22][23][24][25][26]. So, we studied the physical properties interstellar dust like dust temperature, distribution of Planck's function, dust mass, and visual extinction, etc.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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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Study of ambient environment around Asymptotic Giant Branch Carbon Star: IRAS 01142+6306

Cited by 2 publications

References 7 publications

Distribution of Dust Color Temperature, Planck’s Function, and Dust Mass around PSR J1240-4124

Distribution of Dust Color Temperature, Planck’s Function, and Dust Mass around PSR J1240-4124

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

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