Do neutrinos contribute to total dark energy

Singh, Kh. Manglem; Mahanta, K. L.

doi:10.1007/s10509-016-2669-4

Cited by 7 publications

(2 citation statements)

References 56 publications

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“…And some of the works that(worth mentioning) may be mentioned in these fields are those of Sen and Seshadri (2003), Chimanto and Feinsteim (2004), Myrzakulov (2011), Sahni and Starobinsky (2000), Ellis (2003), Padmanabhan (2002a,b), Sen (2003Sen ( ,2005 2015b)obtained also some models of the universe containing dark energy with interesting results and properties. Manihar and Mahanta (2016)obtained as a result of their investigation(study) that there is high possibility of the energy produced from the neutrinos might constitute to the dark energy prevalent in this universe.…”

Section: Introductionmentioning

confidence: 99%

Harnessing Dark Energy in Five-dimensional Brans-Dicke Universe

Singh¹,

Singh²

2019

Preprint

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In trying to explain the present accelerated expansion of the universe in the light of a five-dimensional Brans-Dicke theory, it is found that the fifth dimension itself here acts as a source of dark energy. It may be taken as a curvature-induced form of dark energy, in one case of which it behaves similar to that form of dark energy arising out of the cosmological constant which is the most commonly accepted form of dark energy. It is also found that this new type of dark energy is free from big rip singularity, and may be taken as a viable form of dark energy which can explain some of physical mysteries of the universe.

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Section: Introductionmentioning

confidence: 99%

Harnessing Dark Energy in Five-dimensional Brans-Dicke Universe

Singh¹,

Singh²

2019

Preprint

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“…To name a few, Adhav et al (2011aAdhav et al ( , 2011b, Bagla et al (1996), Bali and Singh (2012), Caldwell (2002), Chimento and Feinstein (2004), Ellis (2003), Gupta and Pradhan (2010), Jassal (2003), Katore et al (2011Katore et al ( , 2012, Mahanta et al (2014), Mishra and Sahoo (2014), Myrzakulov (2012), Nojiri et al (2005), Padmanabhan (2002aPadmanabhan ( , 2002b, Pradhan (2013), Rao and Neelima (2013), Rao et al (2012), Reddy et al (2012Reddy et al ( , 2013, Saha and Yadav (2012), Sahni et al (2008), Sahni and Starobinsky (2000), Sahoo and Mishra (2014), Samanta (2013a), Samanta et al (2013bSamanta et al ( , 2014, Sen (2005), Sen and Scherrer (2005) and Sen and Seshadri (2003) studied the different candidates of dark energy. Whereas, Singh and Mahanta (2016), Singh [2014, 2015a] and Singh et al (2015b) explored some new results involving dark energy.…”

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confidence: 99%

Can Dark Energy Neutralize the Global Warming?

2017

IJRTER

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Global warming is a present hazard threatening human life on earth, disturbing the ecological balance of the whole universe. In this context, we investigate, in this problem, the relation of dark energy, if there is any, with such a dangerous warming scenario. We try to see whether dark energy can be helpful in solving such an alarming problem and can it reduce or neutralize such a hazard by interacting with the different factors causing global warming. In our study, we first try to find out some types of energy which can make the universe expand faster than the present rate so that it helps in cooling it down and it is found that some of this types of energy will be transformed into dark energy. It is also seen that there is a real interaction between the dark energy and the energy produced by other the components of the universe. And there is possibility that some part of the dark energy contained in this universe can be transformed into other forms of energy so that their reaction with the other components of the universe is such that the global pressure decreases and the energy causing most amount of heat be decreased. Also, our study shows that the kind of dark energy which can neutralize global warming is in the form of quintessence.Keywords Global warming, Dark energy, Greenhouse effect, Radiation, Conservation of energy.I. INTRODUCTION It is no wonder that the universe undergoes through cycles of warm and cold periods, and we are now probably in the middle of a warm period. Thinking of global warming, it can be visualized that even though on a thousand years time scale, we are heading towards higher temperature, on a one lakh year time scale, we are actually heading for another cold era. From history, it seems that the cycles of warm and cold eras occur approximately every one lakh year.In the natural process, radiation from the sun is absorbed by the earth and global energy balance is maintained by re-radiating this energy to space as infra red or long wave radiation. The intervening atmosphere absorbs and emits the long wave radiation. But, the whole energy emitted by the surface does not escape to space. As the earth's surface is hotter than the atmosphere, more energy is absorbed by the atmosphere than it emits upward to space. Thus, the energy trapped in the atmosphere causes greenhouse effect which plays a considerable role in global warming. Deep knowledge about greenhouse effect is interesting as it concerns feedbacks among the various elements of the climate system and these feedbacks seem to play a good role in enhancing or diminishing small external perturbations in the radiation balance of the universe.The global warming may be also due to the accelerated expansion of the universe (partly), thus, indirectly depending on the dark energy, as the presence of dark energy is the main cause of the accelerating expansion. The sun is far away from the earth and most of the power it radiates just goes into the blackness of the universe, not to the earth. It is at this junction that we can th...

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Dark energy and its manifestations

Singh

Samanta

2019

New Astronomy

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In a four dimensional manifold formalism we study the evolutionary behavior as well as the ultimate fate of the universe, in the course of which the contribution of dark energy in these phases are investigated. At one stage we get a situation (a condition) where the dark energy contained dominates other types of energies available in this universe. In the model universes we obtain here the dark energy is found to be of ΛCDM and quintessence types-which bear testimony to being real universes. In one of the cases where the equation of state between the fluid pressure and density is of the type of the van der Waals equation, it is found that our universe may end in dust. And, also, it is seen that the behavior of the deceleration parameter is almost compatible with the recent observation.

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Do neutrinos contribute to total dark energy

Cited by 7 publications

References 56 publications

Harnessing Dark Energy in Five-dimensional Brans-Dicke Universe

Harnessing Dark Energy in Five-dimensional Brans-Dicke Universe

Can Dark Energy Neutralize the Global Warming?

Dark energy and its manifestations

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