Zobrazeno 1 - 10
of 418
pro vyhledávání: '"Babul, Arif"'
We investigate the role of the Simba feedback model on the structure of the Intra-Group Medium (IGrM) in the new Hyenas suite of cutting-edge cosmological zoom-in simulations. Using 34 high-resolution zooms of halos spanning from $10^{13}-10^{14}$ $M
Externí odkaz:
http://arxiv.org/abs/2407.14415
Galaxy groups contain the majority of bound mass with a significant portion of baryons due to the combination of halo mass and abundance (Cui 2024). Hence they serve as a crucial missing piece in the puzzle of galaxy formation and the evolution of la
Externí odkaz:
http://arxiv.org/abs/2406.17012
Autor:
Hough, Renier T., Shao, Zhiwei, Cui, Weiguang, Loubser, S. Ilani, Babul, Arif, Davé, Romeel, Rennehan, Douglas, Kobayashi, Chiaki
The newly updated \texttt{GIZMO} and \texttt{Simba} based simulation, \texttt{Simba-C}, with its new stellar feedback, chemical enrichment, and recalibrated AGN feedback, allows for a detailed study of the intragroup medium X-ray properties. We discu
Externí odkaz:
http://arxiv.org/abs/2406.04761
Autor:
O'Sullivan, Ewan, Rajpurohit, Kamlesh, Schellenberger, Gerrit, Vrtilek, Jan, David, Laurence P., Babul, Arif, Olivares, Valeria, Ubertosi, Francesco, Kolokythas, Konstantinos, Babyk, Iurii, Loubser, Ilani
NGC 777 provides an example of a phenomenon observed in some group-central ellipticals, in which the temperature profile shows a central peak, despite the short central cooling time of the intra-group medium. We use deep Chandra X-ray observations of
Externí odkaz:
http://arxiv.org/abs/2405.13667
Autor:
Sah, Mohit Raj, Mukherjee, Suvodip, Saeedzadeh, Vida, Babul, Arif, Tremmel, Michael, Quinn, Thomas R.
The formation and evolution of supermassive black holes (SMBHs) remains an open question in the field of modern cosmology. The detection of nanohertz (n-Hz) gravitational waves via pulsar timing arrays (PTAs) in the form of individual events and the
Externí odkaz:
http://arxiv.org/abs/2404.14508
Autor:
Saeedzadeh, Vida, Babul, Arif, Mukherjee, Suvodip, Tremmel, Michael, Quinn, Thomas R., Mayer, Lucio
The presence of dual active galactic nuclei (AGN) on scales of a few tens of kpc can be used to study merger-induced accretion on supermassive black holes (SMBHs) and offer insights about SMBH mergers, using dual AGNs as merger precursors. This study
Externí odkaz:
http://arxiv.org/abs/2403.17076
In theoretical models of galaxy evolution, black hole feedback is a necessary ingredient in order to explain the observed exponential decline in number density of massive galaxies. Most contemporary black hole feedback models in cosmological simulati
Externí odkaz:
http://arxiv.org/abs/2309.15898
The formation of supermassive black holes (SMBHs) in the Universe and its role in the properties of the galaxies is one of the open questions in astrophysics and cosmology. Though, traditionally, electromagnetic waves have been instrumental in direct
Externí odkaz:
http://arxiv.org/abs/2309.08683
Autor:
Pearson, James, Serjeant, Stephen, Wang, Wei-Hao, Gao, Zhen-Kai, Babul, Arif, Chapman, Scott, Chen, Chian-Chou, Clements, David L., Conselice, Christopher J., Dunlop, James, Fan, Lulu, Ho, Luis C., Hwang, Ho Seong, Koprowski, Maciej, Michałowski, Michał, Shim, Hyunjin
Bright galaxies at sub-millimetre wavelengths from Herschel are now well known to be predominantly strongly gravitationally lensed. The same models that successfully predicted this strongly lensed population also predict about one percent of faint $4
Externí odkaz:
http://arxiv.org/abs/2309.00888
Autor:
Hough, Renier T., Rennehan, Douglas, Kobayashi, Chiaki, Loubser, S. Ilani, Davé, Romeel, Babul, Arif, Cui, Weiguang
We introduce a new chemical enrichment and stellar feedback model into GIZMO, using the SIMBA sub-grid models as a base. Based on the state-of-the-art chemical evolution model of Kobayashi et al., SIMBA-C tracks 34 elements from H$\rightarrow$Ge and
Externí odkaz:
http://arxiv.org/abs/2308.03436