235 citations · 656 across the 16 of their papers we have counts for
16 papers
Halo-driven Origin and Evolution of Overmassive Black Holes and Little Red Dots
Ritik Sharma, Mahavir Sharma
We present a theoretical model in which the recently detected overmassive black holes (OBHs), and potentially Little Red Dots (LRDs), arise during a halo-driven transient phase pre…
The model of feedback-regulated galaxy formation
Mahavir Sharma, Tom Theuns
We present the model of galaxy formation, in which a galaxy's star formation rate is set by the balance between energy injected by feedback from massive stars and energy los…
Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo
Jinmi Yoon, Timothy C. Beers, Sarah Dietz +6
Understanding the evolution of carbon and iron in the Milky Way's halo is of importance because these two elements play crucial roles constraining star formation, Galactic assembly…
The chemical imprint of the bursty nature of Milky Way's progenitors
Mahavir Sharma, Tom Theuns, Carlos Frenk
Carbon enhanced metal poor (CEMP) stars with low abundances of neutron capture elements (CEMP-no stars) are ubiquitous among metal poor stars in the Milky Way. Recent observations…
The duration of reionization constrains the ionizing sources
Mahavir Sharma, Tom Theuns, Carlos Frenk
We investigate how the nature of the galaxies that reionized the Universe affects the duration of reionization. We contrast two sets of models: one in which galaxies on the faint s…
CEMPlifying reionization
Mahavir Sharma, Tom Theuns, Carlos Frenk
The massive stars that ionised the Universe have short lifetimes and can only be studied near the time of formation, but any low mass stars that formed contemporaneously might be o…
Origins of carbon-enhanced metal-poor stars
Mahavir Sharma, Tom Theuns, Carlos S. Frenk +1
We investigate the nature of carbon-enhanced metal poor (CEMP) stars in Milky Way (MW) analogues selected from the EAGLE cosmological hydrodynamical simulation. The stellar evoluti…
Winds of change: reionization by starburst galaxies
Mahavir Sharma, Tom Theuns, Carlos Frenk +4
We investigate the properties of the galaxies that reionized the Universe and the history of cosmic reionization using the "Evolution and Assembly of GaLaxies and their environment…
The brighter galaxies reionised the Universe
Mahavir Sharma, Tom Theuns, Carlos S. Frenk +4
Hydrogen in the Universe was (re)ionised between redshifts and . The nature of the sources of the ionising radiation is hotly debated, with faint galaxi…
Interaction of galactic wind with halo gas and the origin of multiphase extraplanar material
Mahavir Sharma, Biman B. Nath, Indranil Chattopadhyay +1
We study the interaction of galactic wind with hot halo gas using hydrodynamical simulations. We find that the outcome of this interaction depends crucially on the wind injection d…
Signature of outflows in strong MgII absorbers in quasar sightlines
Mahavir Sharma, Biman B. Nath, Hum Chand
We report a correlation between velocity offset (beta = v/c) of strong Mg II absorption systems and the bolometric luminosity (L_bol) of quasars in SDSS-DR7. We find that, beta sho…
Supernovae and AGN driven galactic outflows
Mahavir Sharma, Biman B. Nath
We present analytical solutions for winds from galaxies with NFW dark matter halo. We consider winds driven by energy and mass injection from multiple supernovae, as well as moment…
Simulation of radiation driven wind from disc galaxies
Indranil Chattopadhyay, Mahavir Sharma, Biman B. Nath +1
We present 2-D hydrodynamic simulation of rotating galactic winds driven by radiation. We study the structure and dynamics of the cool and/or warm component( K) whic…
Galactic winds driven by cosmic-ray streaming
M. Uhlig, C. Pfrommer, M. Sharma +3
Galactic winds are observed in many spiral galaxies with sizes from dwarfs up to the Milky Way, and they sometimes carry a mass in excess of that of newly formed stars by up to a f…
The roles of radiation and ram pressure in driving galactic winds
Mahavir Sharma, Biman B. Nath
We study gaseous outflows from disk galaxies driven by the combined effects of ram pressure on cold gas clouds and radiation pressure on dust grains. Taking into account the gravit…
Dust-driven wind from disk galaxies
Mahavir Sharma, Biman B. Nath, Yuri Shchekinov
We study gaseous outflows from disc galaxies driven by radiation pressure on dust grains. We include the effect of bulge and dark matter halo and show that the existence of such an…