Articles written in Journal of Astrophysics and Astronomy

    • Probing the epoch of reionization using synergies of line intensity mapping


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      The epoch of reionization (EoR) remains a poorly understood cosmic era for the most part. Yet, efforts are still going on to probe and understand this epoch. We present a review of the latest developments in the techniques (especially line-intensity mapping) to study the EoR and try to highlight the contribution of the Indian community in this field. Line-emissions like [Hi]21 cm, Lyman-α, [Cii]158 $\mu$m and their role as tracers in probing the EoR are discussed. While the [Hi]21 cm is an excellent probe of the early inter-galactic medium (IGM), the others are mainly targeted to do an unresolved and large-scale survey of the reionizingsources. Techniques to model these signals include simulations and machine learning approaches along with the challenge to tackle foregrounds or interlopers. We also discuss synergy opportunities among various tracers that we mention. Synergy addresses different aspects of the problem, which is otherwise difficult or impossibleto tackle. They include statistics like cross-power spectrum, cross-bispectrum and other techniques, such as follow-up studies. We present updates on the relevant experiments; these include upper limits on the [Hi]21 cm power spectrum along with some highlights on high-redshift galaxy surveys. Finally, we highlight on what can be improved further within the community: applying machine learning and simulations based on hydrodynamic and radiative-transfer techniques. Next-generation experiments also need to be conceived to address issues, which are currently beyond our reach.

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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