English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

During cosmic dawn, the thermal history of the universe is well studied, anda study of this era can give us some of the most useful insight into theuniverse before the recombination epoch. Its precise modeling and futurehigh-precision measurements will be a valuable tool for determining the thermalhistory of the universe. In the present work, we study the thermal andionization history of IGM in the presence of decaying magnetic fields viaambipolar and turbulent decay, Baryon-Dark matter (BDM) interaction, includingthe DM decay/annihilation. The BDM interaction cross-sections considered are ofthe form $\sigma=\sigma_0 v^{n}$, where $n=-2$ and $n=-4$. In this work, weshow that in the current scenario, the decay/annihilation of the DM particleshave a considerable impact on the temperature and ionization histories at lowredshift. With the addition of the concept of fractional interaction, whichstates that if a fraction of the DM particles interacts with the baryons, thetemperature and ionization fraction of the baryons show a strong dependence onthe percentage of DM particles interacting with the baryons. We have alsostudied the interesting consequences of the present scenario on the thermalSunyaev-Zeldovich (tSZ) effect. We show that the highest value of the absolutevalue of the mean $y-$parameter in the current DM decay/annihilation scenariois well within the values derived from experimental data such as PLANCK, FIRAS,and PIXIE. Later we calculate the bound on the ordinary magnetic fieldsoriginating from the Dark photons.

Thermal SZ effect in a magnetized IGM dominated by interacting DM decay/annihilation during dark ages