Výsledky vyhledávání - "galaxies: haloe"

The chemo-dynamical groups of Galactic globular clusters

Autor: Thomas M Callingham, Marius Cautun, Alis J Deason, Carlos S Frenk, Robert J J Grand, Federico Marinacci

Publikováno v: Monthly Notices of the Royal Astronomical Society, 513(3), 4107-4129. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 2022, Vol.513(3), pp.4107-4129 [Peer Reviewed Journal]
Monthly Notices of the Royal Astronomical Society, 513(3), 4107-4129

We introduce a multi-component chemo-dynamical method for splitting the Galactic population of Globular Clusters (GCs) into three distinct constituents: bulge, disc, and stellar halo. The latter is further decomposed into the individual large accreti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef2853c61140b5fbea7328e661d2850c
https://research.rug.nl/en/publications/99faaf22-80ce-447c-bf14-14019b15f298

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Properties of the ionized CGM and IGM: tests for galaxy formation models from the Sunyaev–Zel’dovich effect

Autor: Mark Vogelsberger, Annalisa Pillepich, Dylan Nelson, Houjun Mo, S. H. Lim, Klaus Dolag, Federico Marinacci, David J. Barnes

Publikováno v: Monthly Notices of the Royal Astronomical Society. 504:5131-5143

We present a comparison of the physical properties of the ionized gas in the circumgalactic medium and intergalactic medium (IGM) at z ∼ 0 between observations and four cosmological hydrodynamical simulations: Illustris, TNG300 of the IllustrisTNG

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90458f8c255fa80884a102b2c0678c7c
https://doi.org/10.1093/mnras/stab1172

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Molecular hydrogen in IllustrisTNG galaxies: carefully comparing signatures of environment with local CO and SFR data

Autor: Adam R. H. Stevens, Claudia del P. Lagos, Benedikt Diemer, Federico Marinacci, Mark Vogelsberger, Barbara Catinella, Lars Hernquist, Annalisa Pillepich, Luca Cortese, Dylan Nelson

Publikováno v: Monthly Notices of the Royal Astronomical Society. 502:3158-3178

We examine how the post-processed content of molecular hydrogen (H$_2$) in galaxies from the TNG100 cosmological, hydrodynamic simulation changes with environment at $z\!=\!0$, assessing central/satellite status and host halo mass. We make close comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f17eab48869d3b62c212fdd1bbfbc388
https://doi.org/10.1093/mnras/staa3662

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Predictions for the angular dependence of gas mass flow rate and metallicity in the circumgalactic medium

Autor: Mark Vogelsberger, Freeke van de Voort, Annalisa Pillepich, Celine Peroux, Federico Marinacci, Dylan Nelson, Lars Hernquist

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 499, pp.2462-2473. ⟨10.1093/mnras/staa2888⟩
arXiv

We use cosmological hydrodynamical simulations to examine the physical properties of the gas in the circumgalactic media (CGM) of star-forming galaxies as a function of angular orientation. We utilise TNG50 of the IllustrisTNG project, as well as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a993b120035934dc82eab788b7db50d
https://doi.org/10.1093/mnras/staa2888

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MUSEQuBES: calibrating the redshifts of Ly α emitters using stacked circumgalactic medium absorption profiles

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society: Letters
Monthly Notices of the Royal Astronomical Society: Letters, Oxford Journals, 2020, Monthly Notices of the Royal Astronomical Society, 496 (2), pp.1013-1022. ⟨10.1093/mnras/staa1347⟩
Monthly Notices of the Royal Astronomical Society, 496(2), 1013-1022
Monthly Notices of the Royal Astronomical Society: Letters, 2020, Monthly Notices of the Royal Astronomical Society, 496 (2), pp.1013-1022. ⟨10.1093/mnras/staa1347⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 496 (2), pp.1013-1022. ⟨10.1093/mnras/staa1347⟩
Monthly Notices of the Royal Astronomical Society, 496 (2)

Lyman$-\alpha$ (Ly$\alpha$) emission lines are typically found to be redshifted with respect to the systemic redshifts of galaxies, likely due to resonant scattering of Ly$\alpha$ photons. Here we measure the average velocity offset for a sample of 9

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f14e04a997c1ab149c8f114d4b678b4d
https://doi.org/10.1093/mnras/staa1347

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Validating the methodology for constraining the linear growth rate from clustering anisotropies

Autor: Rigoberto A. Casas-Miranda, Jorge Enrique García-Farieta, Federico Marulli, Lauro Moscardini, Alfonso Veropalumbo

Publikováno v: Monthly Notices of the Royal Astronomical Society. 494:1658-1674

Redshift-space clustering distortions provide one of the most powerful probes to test the gravity theory on the largest cosmological scales. We perform a systematic validation study of the state-of-the-art statistical methods currently used to constr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74e4a4ebc600131de79ff46cc8bde695
https://doi.org/10.1093/mnras/staa791

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Discovery of three new near-pristine absorption clouds at $z=2.6$-4.4

Autor: P Frédéric Robert, Michael T Murphy, John M O’Meara, Neil H M Crighton, Michele Fumagalli

Publikováno v: Monthly Notices of the Royal Astronomical Society

We report the discovery of three new "near-pristine" Lyman Limit Systems (LLSs), with metallicities ~1/1000 solar, at redshifts 2.6, 3.8 and 4.0, with a targeted survey at the Keck Observatory. High resolution echelle spectra of eight candidates yiel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::768009efef90ad08869720682fa10895

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The Cosmic Ultraviolet Baryon Survey (CUBS) V: on the thermodynamic properties of the cool circumgalactic medium at z ≲ 1

Autor: Zhijie Qu, Hsiao-Wen Chen, Gwen C Rudie, Fakhri S Zahedy, Sean D Johnson, Erin Boettcher, Sebastiano Cantalupo, Mandy C Chen, Kathy L Cooksey, David DePalma, Claude-André Faucher-Giguère, Michael Rauch, Joop Schaye, Robert A Simcoe

Publikováno v: Monthly Notices of the Royal Astronomical Society, 516(4), 4882-4897

This paper presents a systematic study of the photoionization and thermodynamic properties of the cool circumgalactic medium (CGM) as traced by rest-frame ultraviolet absorption lines around 26 galaxies at redshift $z\lesssim1$. The study utilizes bo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f5dd234a068d64a69d0378316ce20e9
https://hdl.handle.net/10281/396873

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Cusp or core? Revisiting the globular cluster timing problem in Fornax

Autor: Julio F. Navarro, Noah Meadows, Carlos S. Frenk, Alejandro Benítez-Llambay, Isabel M. E. Santos-Santos

Publikováno v: Monthly notices of the Royal Astronomical Society, 2020, Vol.491(3), pp.3336-3342 [Peer Reviewed Journal]
Monthly Notices of the Royal Astronomical Society

We use N-body simulations to revisit the globular cluster (GC) ``timing problem'' in the Fornax dwarf spheroidal (dSph). In agreement with earlier work, we find that, due to dynamical friction, GCs sink to the center of dark matter halos with a cuspy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95988e34f83135844adb244e24de34e1
https://doi.org/10.1093/mnras/stz3280

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