Zobrazeno 1 - 10
of 103
pro vyhledávání: '"DUTTA, JAYANTA"'
Autor:
Kundu, Sukalpa, Dutta, Jayanta
Recent numerical simulations have shown that the unstable disk within the central regime of the primordial gas cloud fragments to form multiple protostars on several scales. Their evolution depends on the mass accretion phenomenon, interaction with t
Externí odkaz:
http://arxiv.org/abs/2402.18197
Autor:
Raghuvanshi, Shubham, Dutta, Jayanta
It has been argued that the low-mass primordial stars ($m_{\rm Pop III}\,\leq 0.8\,M_\odot$) are likely to enter the main sequence and hence possibly be found in the present-day Galaxy. However, due to limitations in existing numerical capabilities,
Externí odkaz:
http://arxiv.org/abs/2208.10789
Semi-supervised object detection methods are widely used in autonomous driving systems, where only a fraction of objects are labeled. To propagate information from the labeled objects to the unlabeled ones, pseudo-labels for unlabeled objects must be
Externí odkaz:
http://arxiv.org/abs/2203.05983
Recent numerical simulations have suggested the probability of a fraction of the primordial stars to be ejected from the cluster of their origin. We explore the possibility that some of these can remain on the main sequence till the present epoch. We
Externí odkaz:
http://arxiv.org/abs/1912.08099
Deep learning has shown promising results on many machine learning tasks but DL models are often complex networks with large number of neurons and layers, and recently, complex layer structures known as building blocks. Finding the best deep model re
Externí odkaz:
http://arxiv.org/abs/1801.08577
Recent numerical simulations have suggested the probability of a fraction of the primordial stars being ejected from the cluster of their origin. We explore the possibility that some of these can remain on the main sequence until the present epoch. W
Externí odkaz:
http://arxiv.org/abs/1712.06912
Autor:
Dutta, Jayanta
It is generally believed that angular momentum is distributed during the gravitational collapse of the primordial star forming cloud. However, so far there has been little understanding of the exact details of the distribution. We use the modified ve
Externí odkaz:
http://arxiv.org/abs/1512.01656
Autor:
Dutta, Jayanta
Publikováno v:
A&A 585, A59 (2016)
The thermodynamical evolution of gas during the collapse of the primordial star-forming cloud depends significantly on the initial degree of rotation. However, there is no clear understanding of how the initial rotation can affect the heating and coo
Externí odkaz:
http://arxiv.org/abs/1511.00285
Autor:
Dutta, Jayanta
Publikováno v:
The Astrophysical Journal, Volume 811, Issue 2, article id. 98, 6 pp. (2015)
The collapse of the primordial gas in the density regime $\sim 10^{8}\hbox{--}10^{10}$ cm$^{-3}$ is controlled by the three-body $\rm H_2$ formation process, in which the gas can cool faster than free-fall time $\hbox{--}$ a condition proposed as the
Externí odkaz:
http://arxiv.org/abs/1510.08589
It has been shown that the behaviour of primordial gas collapsing in a dark matter minihalo can depend on the adopted choice of 3-body H$_2$ formation rate. The uncertainties in this rate span two orders of magnitude in the current literature, and so
Externí odkaz:
http://arxiv.org/abs/1503.08932