T
T. P. Adhikari
Researcher at Polish Academy of Sciences
Publications - 40
Citations - 516
T. P. Adhikari is an academic researcher from Polish Academy of Sciences. The author has contributed to research in topics: Emission spectrum & Active galactic nucleus. The author has an hindex of 12, co-authored 39 publications receiving 431 citations. Previous affiliations of T. P. Adhikari include Inter-University Centre for Astronomy and Astrophysics.
Papers
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Journal ArticleDOI
Modeling of the Quasar Main Sequence in the Optical Plane
Swayamtrupta Panda,Bozena Czerny,T. P. Adhikari,Krzysztof Hryniewicz,Conor Wildy,Joanna Kuraszkiewicz,Marzena Śniegowska +6 more
TL;DR: In this paper, a physically motivated model was proposed to explain the distribution of quasars in the optical plane, where a hard X-ray power law uniquely tight to the disk at the basis of observational scaling, and the Broad Line Region distance was determined also from observational scaling.
Journal ArticleDOI
Modelling of the quasar main sequence in the optical plane
Swayamtrupta Panda,Bozena Czerny,T. P. Adhikari,Krzysztof Hryniewicz,Conor Wildy,Joanna Kuraszkiewicz,Marzena Śniegowska +6 more
TL;DR: In this article, the authors use a physically motivated model to explain the distribution of quasars in the optical plane and conclude that there is no single simple driver behind the sequence, as neither the Eddington ratio nor broad band spectrum shape plays the dominant role.
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The dust origin of the Broad Line Region and the model consequences for AGN unification scheme
Bozena Czerny,Justyna Modzelewska,Francesco Petrogalli,Wojtek Pych,T. P. Adhikari,Piotr T. Życki,K. Hryniewicz,Magdalena Krupa,Agnieszka Świe¸toń,Marek Nikolajuk +9 more
TL;DR: In this article, a simple physical mechanism was proposed for the formation of the Low Ionization Line part of the Broad Line Region in Active Galactic Nuclei, where the local effective temperature of a non-illuminated accretion disk drops below 1000 K and allows for dust formation.
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The intermediate-line region in active galactic nuclei
T. P. Adhikari,Agata Różańska,Bozena Czerny,Krzysztof Hryniewicz,Gary J. Ferland,Gary J. Ferland +5 more
TL;DR: In this article, the authors show that the observed suppression of the gap between the broad line region and the narrow line region in some AGN can be fully explained by an increase of the gas density in the emitting region, which is consistent with the density of upper layers of an accretion disk atmosphere.
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Absorption Measure Distribution in Mrk 509
TL;DR: In this paper, the authors modeled the absorption measure distribution (AMD) with a single-zone absorber in pressure equilibrium, and found theoretical AMD that matched the observed AMD determined on the basis of the 600 ks reflection grating spectrometer XMM-Newton spectrum of Mrk 509.