Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Elahi, Pascal J."'
We present AstroLink, an efficient and versatile clustering algorithm designed to hierarchically classify astrophysically-relevant structures from both synthetic and observational data sets. We build upon CluSTAR-ND, a hierarchical galaxy/(sub)halo f
Externí odkaz:
http://arxiv.org/abs/2312.14632
Autor:
Stevens, Adam R. H., Brown, Toby, Diemer, Benedikt, Pillepich, Annalisa, Hernquist, Lars, Nelson, Dylan, Bahé, Yannick M., Boselli, Alessandro, Davis, Timothy A., Elahi, Pascal J., Ellison, Sara L., Jiménez-Donaire, María J., Roberts, Ian D., Spekkens, Kristine, Villanueva, Vicente, Watts, Adam B., Wilson, Christine D., Zabel, Nikki
It has been shown in previous publications that the TNG100 simulation quantitatively reproduces the observed reduction in each of the total atomic and total molecular hydrogen gas for galaxies within massive halos, i.e.~dense environments. In this Le
Externí odkaz:
http://arxiv.org/abs/2310.08023
We present CluSTAR-ND, a fast hierarchical galaxy/(sub)halo finder that produces {\bf Clu}stering {\bf S}tructure via {\bf T}ransformative {\bf A}ggregation and {\bf R}ejection in {\bf N}-{\bf D}imensions. It is designed to improve upon Halo-OPTICS -
Externí odkaz:
http://arxiv.org/abs/2201.10694
Autor:
Brown, Toby, Wilson, Christine D., Zabel, Nikki, Davis, Timothy A., Boselli, Alessandro, Chung, Aeree, Ellison, Sara L., Lagos, Claudia D. P., Stevens, Adam R. H., Cortese, Luca, Bahé, Yannick M., Bisaria, Dhruv, Bolatto, Alberto D., Cashmore, Claire R., Catinella, Barbara, Chown, Ryan, Diemer, Benedikt, Elahi, Pascal J., Hani, Maan H., Jiménez-Donaire, María J., Lee, Bumhyun, Leidig, Katya, Mok, Angus, Olsen, Karen Pardos, Parker, Laura C., Roberts, Ian D., Smith, Rory, Spekkens, Kristine, Thorp, Mallory, Tonnesen, Stephanie, Vienneau, Evan, Villanueva, Vicente, Vogel, Stuart N., Wadsley, James, Welker, Charlotte, Yoon, Hyein
We present the Virgo Environment Traced in CO (VERTICO) survey, a new effort to map $^{12}$CO($2-1$), $^{13}$CO($2-1$), and C$^{18}$O($2-1$) in 51 Virgo Cluster galaxies with the Atacama Compact Array, part of the Atacama Large Millimeter/submillimet
Externí odkaz:
http://arxiv.org/abs/2111.00937
We build upon Ordering Points To Identify Clustering Structure (OPTICS), a hierarchical clustering algorithm well-known to be a robust data-miner, in order to produce Halo-OPTICS, an algorithm designed for the automatic detection and extraction of al
Externí odkaz:
http://arxiv.org/abs/2012.04823
Autor:
Poulton, Rhys J. J., Power, Chris, Robotham, Aaron S. G., Elahi, Pascal J., Lagos, Claudia del P.
Predicting the merger timescale ($\tau_{\rm merge}$) of merging dark matter halos, based on their orbital parameters and the structural properties of their hosts, is a fundamental problem in gravitational dynamics that has important consequences for
Externí odkaz:
http://arxiv.org/abs/2010.08786
Upcoming measurements of the highly redshifted 21cm line with next-generation radio telescopes such as HERA and SKA will provide the intriguing opportunity to probe dark matter (DM) physics during the Epoch of Reionization (EoR), Cosmic Dawn, and the
Externí odkaz:
http://arxiv.org/abs/2009.11298
Autor:
Qiu, Yisheng, Mutch, Simon J., Elahi, Pascal J., Poulton, Rhys J. J., Power, Chris, Wyithe, J. Stuart B.
Resolving faint galaxies in large volumes is critical for accurate cosmic reionisation simulations. While less demanding than hydrodynamical simulations, semi-analytic reionisation models still require very large N-body simulations in order to resolv
Externí odkaz:
http://arxiv.org/abs/2007.14624
The standard cosmological paradigm currently lacks a detailed account of physics in the dark sector, the dark matter and energy that dominate cosmic evolution. In this paper, we consider the distinguishing factors between three alternative models - w
Externí odkaz:
http://arxiv.org/abs/1912.10595
For astronomers to make a significant contribution to the reduction of climate change-inducing greenhouse gas emissions, we first must quantify our sources of emissions and review the most effective approaches for reducing them. Here we estimate that
Externí odkaz:
http://arxiv.org/abs/1912.05834