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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The $Fermi$ blazar observations show a strong correlation between$\gamma$-ray luminosities and spectral indices. BL Lac objects are lessluminous with harder spectra than flat-spectrum radio quasars (FSRQs).Interestingly FSRQs are evident to exhibit a Keplerian disc component alongwith a powerful jet. We compute the jet intrinsic luminosities by beamingcorrections determined by different cooling mechanisms. Observed $\gamma$-rayluminosities and spectroscopic measurements of broad emission lines suggest acorrelation of the accretion disc luminosity with jet intrinsic luminosity.Also, theoretical and observational inferences for these jetted sourcesindicate a signature of hot advective accretion flow and a dynamically dominantmagnetic field at jet-footprint. Indeed it is difficult to imagine the powerfuljet launching from a geometrically thin Keplerian disc. We propose amagnetized, advective disc-outflow symbiosis with explicit cooling to address aunified classification of blazars by controlling both the mass accretion rateand magnetic field strength. The large scale strong magnetic fields influencethe accretion dynamics, remove angular momentum from the infalling matter, helpin the formation of strong outflows/jets, and lead to synchrotron emissionssimultaneously. We suggest that the BL Lacs are more optically thin andmagnetically dominated than FSRQs at the jet-footprint to explain theirintrinsic $\gamma$-ray luminosities.

FSRQ/BL Lac dichotomy as the magnetized advective accretion process around black holes: a unified classification of blazars