A new approach to the generalization of Planck’s law of black-body radiation

Choudhury, Sreeja Loho; Paul, R. K.

doi:10.1016/j.aop.2018.06.004

Cited by 20 publications

(8 citation statements)

References 13 publications

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“…A blackbody is defined as an object perfectly capable of absorbing all incident radiation on it of any frequency. Planck's radiation law relates the intensity of radiation produced at a given temperature to either frequency or wavelength 34 , 35 . where h, T, k, c, ν are Planck’s constant, absolute temperature, Boltzmann’s constant, speed of light (in vacuum) and frequency respectively.…”

Section: Methodsmentioning

confidence: 99%

Investigation on CMB monopole and dipole using blackbody radiation inversion

Dhal

Paul

2023

Sci Rep

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The COBE/FIRAS dataset is used to calculate the Cosmic Microwave Background temperature and the uncertainty using the Blackbody Radiation Inversion (BRI) method. In this research work, the procedure is somewhat comparable to the mixing of weighted blackbodies in the case of the dipole. The temperature and its spreading for the monopole and dipole, respectively, are 2.741 ± 0.018 K and 2.748 ± 0.270 K. This dipole spreading exceeds the spreading predicted by taking relative motion into account (i.e., 3.3 × 10−3 K). The comparison of the probability distributions for the monopole spectrum, dipole spectrum, and their resultant is also displayed. It is shown that the distribution is symmetrically orientated. We estimated the µ and y-distortions by interpreting the spreading as the distortion and found that they are of the order of 10−4 and 10−5, respectively, for the monopole spectrum and 10−2 for the dipole spectrum. The paper also highlights the effectiveness of the BRI method and hints at future applications in the thermal nature of the early universe.

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Section: Methodsmentioning

confidence: 99%

Investigation on CMB monopole and dipole using blackbody radiation inversion

Dhal

Paul

2023

Sci Rep

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“…( 16). The latter is a controversial issue [21,[37][38][39], as different averaging methods are useable and are employed in this statistics [21]. These different methods have their own benefits and shortcomings, and indeed, their correctness and accessibility situations are still unsolved and need more attentions and observations [21].…”

Section: B Tsallis Black Holementioning

confidence: 99%

The third law of thermodynamics and black holes

Moradpour,

Ziaie,

Lobo

et al. 2021

Preprint

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Working in the framework of generalized statistics, the problem of availability of the third law of thermodynamics in the black hole physics is studied by focusing on Schwarzschild black hole which easily and clearly exposes the violation of this law in common the approach based on Bekenstein entropy. Additionally, it is addressed that some inconsistencies between the predictions of quantum field theory and those of thermodynamics on the black hole temperature may be reconciled by using the thermodynamics laws in order to broaden energy definition. It claims that thermodynamics should be employed as a powerful tool in looking for more comprehensive energy definitions in high energy physics, still mysterious.

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“…However, black bodies do not exist in real life, and the radiation in ideal and real life conditions is different, but the relationship between temperature and frequency corresponding to the black body radiation theory still exists. In this study, through the characteristics of Planck’s black body radiation law and Stefan–Boltzmann’s law [ 9 , 10 ], the degradation compensation coefficient of the measured object and the lens machine was obtained [ 11 ]. Take the black body radiant energy density whose wavelength is the independent variable as the measurement basis.…”

Section: Introductionmentioning

confidence: 99%

Compensation for Vanadium Oxide Temperature with Stereo Vision on Long-Wave Infrared Light Measurement

Lin¹,

Yao²

2022

Sensors

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In this paper, using automated optical inspection equipment and a thermal imager, the position and the temperature of the heat source or measured object can effectively be grasped. The high-resolution depth camera is with the stereo vision distance measurement and the low-resolution thermal imager is with the long-wave infrared measurement. Based on Planck’s black body radiation law and Stefan–Boltzmann law, the binocular stereo calibration of the two cameras was calculated. In order to improve the measured temperature error at different distances, equipped with Intel Real Sense Depth Camera D435, a compensator is proposed to ensure that the measured temperature of the heat source is correct and accurate. From the results, it can be clearly seen that the actual measured temperature at each distance is proportional to the temperature of the thermal image vanadium oxide, while the actual measured temperature is inversely proportional to the distance of the test object. By the proposed compensation function, the compensation temperature at varying vanadium oxide temperatures can be obtained. The errors between the average temperature at each distance and the constant temperature of the test object at 39 °C are all less than 0.1%.

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A new approach to the generalization of Planck’s law of black-body radiation

Cited by 20 publications

References 13 publications

Investigation on CMB monopole and dipole using blackbody radiation inversion

Investigation on CMB monopole and dipole using blackbody radiation inversion

The third law of thermodynamics and black holes

Compensation for Vanadium Oxide Temperature with Stereo Vision on Long-Wave Infrared Light Measurement

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