%0 Generic %1 kamran2021probing %A Kamran, Mohd %A Majumdar, Suman %A Ghara, Raghunath %A Mellema, Garrelt %A Bharadwaj, Somnath %A Pritchard, Jonathan R. %A Mondal, Rajesh %A Iliev, Ilian T. %D 2021 %K library %T Probing IGM Physics during Cosmic Dawn using the Redshifted 21-cm Bispectrum %U http://arxiv.org/abs/2108.08201 %X With the advent of the first luminous sources at Cosmic Dawn (CD), the redshifted 21-cm signal, from the neutral hydrogen in the Inter-Galactic Medium (IGM), is predicted to undergo a transition from absorption to emission against the CMB. Using simulations, we show that the redshift evolution of the sign and the magnitude of the 21-cm bispectrum can disentangle the contributions from Ly$\alpha$ coupling and X-ray heating of the IGM, the two most dominant processes which drive this transition. This opens a new avenue to probe the first luminous sources and the IGM physics at CD.

@misc{kamran2021probing, abstract = {With the advent of the first luminous sources at Cosmic Dawn (CD), the redshifted 21-cm signal, from the neutral hydrogen in the Inter-Galactic Medium (IGM), is predicted to undergo a transition from absorption to emission against the CMB. Using simulations, we show that the redshift evolution of the sign and the magnitude of the 21-cm bispectrum can disentangle the contributions from Ly$\alpha$ coupling and X-ray heating of the IGM, the two most dominant processes which drive this transition. This opens a new avenue to probe the first luminous sources and the IGM physics at CD.}, added-at = {2021-08-19T08:25:33.000+0200}, author = {Kamran, Mohd and Majumdar, Suman and Ghara, Raghunath and Mellema, Garrelt and Bharadwaj, Somnath and Pritchard, Jonathan R. and Mondal, Rajesh and Iliev, Ilian T.}, biburl = {https://www.bibsonomy.org/bibtex/228696e406af78f8f7fca9f3d45277f80/gpkulkarni}, description = {Probing IGM Physics during Cosmic Dawn using the Redshifted 21-cm Bispectrum}, interhash = {809a249cc80e993b39bbf00e43be7f96}, intrahash = {28696e406af78f8f7fca9f3d45277f80}, keywords = {library}, note = {cite arxiv:2108.08201Comment: 5 pages, 2 figures, comments are welcome}, timestamp = {2021-08-19T08:25:33.000+0200}, title = {Probing IGM Physics during Cosmic Dawn using the Redshifted 21-cm Bispectrum}, url = {http://arxiv.org/abs/2108.08201}, year = 2021 }