Zobrazeno 1 - 10
of 1 171
pro vyhledávání: '"Frenk, Carlos S."'
Autor:
Lu, Shengdong, Frenk, Carlos S., Bose, Sownak, Lacey, Cedric G., Cole, Shaun, Baugh, Carlton M., Helly, John C.
Observations with the James Webb Space Telescope have revealed a high abundance of bright galaxies at redshift, $z\gtrsim 12$, which has been widely interpreted as conflicting with the $\Lambda$CDM model. In Cowley et al. (2018) predictions were made
Externí odkaz:
http://arxiv.org/abs/2406.02672
The dark matter subhalos orbiting in a galactic halo perturb the orbits of stars in thin stellar streams. Over time the random velocities in the streams develop non-Gaussian wings. The rate of velocity increase is approximately a random walk at a rat
Externí odkaz:
http://arxiv.org/abs/2405.18522
Autor:
Amvrosiadis, Aristeidis, Lange, Samuel, Nightingale, James, He, Qiuhan, Frenk, Carlos S., Oman, Kyle A., Smail, Ian, Swinbank, Mark A., Fragkoudi, Francesca, Gadotti, Dimitri A., Cole, Shaun, Borsato, Edoardo, Robertson, Andrew, Massey, Richard, Cao, Xiaoyue, Li, Ran
We examine the morphological and kinematical properties of SPT-2147, a strongly lensed, massive, dusty, star-forming galaxy at $z = 3.762$. Combining data from JWST, HST, and ALMA, we study the galaxy's stellar emission, dust continuum and gas proper
Externí odkaz:
http://arxiv.org/abs/2404.01918
Autor:
Zheng, Haonan, Bose, Sownak, Frenk, Carlos S., Gao, Liang, Jenkins, Adrian, Liao, Shihong, Springel, Volker, Wang, Jie, White, Simon D. M.
The Voids-within-Voids-within-Voids (VVV) project used dark-matter-only simulations to study the abundance and structure of dark matter haloes over the full mass range populated in the standard $\Lambda\mathrm{CDM}$ cosmology. Here we explore how bar
Externí odkaz:
http://arxiv.org/abs/2403.17044
Autor:
He, Qiuhan, Nightingale, James W., Amvrosiadis, Aris, Robertson, Andrew, Cole, Shaun, Frenk, Carlos S., Massey, Richard, Li, Ran, Cao, Xiaoyue, Lange, Samuel C., França, João Paulo C.
In a strong gravitational lensing system, the distorted light from a source is analysed to infer the properties of the lens. However, light emitted by the lens itself can contaminate the image of the source, introducing systematic errors in the analy
Externí odkaz:
http://arxiv.org/abs/2403.16253
Autor:
Elbers, Willem, Frenk, Carlos S., Jenkins, Adrian, Li, Baojiu, Helly, John C., Kugel, Roi, Schaller, Matthieu, Schaye, Joop, Braspenning, Joey, Kwan, Juliana, McCarthy, Ian G., Salcido, Jaime, van Daalen, Marcel P., Vandenbroucke, Bert, Pascoli, Silvia
Large-scale structure surveys have reported measurements of the density of matter, $\Omega_\mathrm{m}$, and the amplitude of clustering, $\sigma_8$, that are in tension with the values inferred from observations of the cosmic microwave background. Wh
Externí odkaz:
http://arxiv.org/abs/2403.12967
Autor:
Pizzati, Elia, Hennawi, Joseph F., Schaye, Joop, Schaller, Matthieu, Eilers, Anna-Christina, Wang, Feige, Frenk, Carlos S., Elbers, Willem, Helly, John C., Mackenzie, Ruari, Matthee, Jorryt, Bordoloi, Rongmon, Kashino, Daichi, Naidu, Rohan P., Yue, Minghao
Recent observations from the EIGER JWST program have measured for the first time the quasar-galaxy cross-correlation function at $z\approx6$. The auto-correlation function of faint $z\approx6$ quasars was also recently estimated. These measurements p
Externí odkaz:
http://arxiv.org/abs/2403.12140
EIGER VI. The Correlation Function, Host Halo Mass and Duty Cycle of Luminous Quasars at $z\gtrsim6$
Autor:
Eilers, Anna-Christina, Mackenzie, Ruari, Pizzati, Elia, Matthee, Jorryt, Hennawi, Joseph F., Zhang, Haowen, Bordoloi, Rongmon, Kashino, Daichi, Lilly, Simon J., Naidu, Rohan P., Simcoe, Robert A., Yue, Minghao, Frenk, Carlos S., Helly, John C., Schaller, Matthieu, Schaye, Joop
We expect luminous ($M_{1450}\lesssim-26.5$) high-redshift quasars to trace the highest density peaks in our universe, and therefore to reside in proto-clusters encompassing an abundance of galaxies in close vicinity. Here, we present observations of
Externí odkaz:
http://arxiv.org/abs/2403.07986
The 21-cm spectral line widths, $w_{50}$, of galaxies are an approximate tracer of their dynamical masses, such that the dark matter halo mass function is imprinted in the number density of galaxies as a function of $w_{50}$. Correcting observed numb
Externí odkaz:
http://arxiv.org/abs/2401.11878
Autor:
Broxterman, Jeger C., Schaller, Matthieu, Schaye, Joop, Hoekstra, Henk, Kuijken, Konrad, Helly, John C., Kugel, Roi, Braspenning, Joey, Elbers, Willem, Frenk, Carlos S., Kwan, Juliana, McCarthy, Ian G., Salcido, Jaime, van Daalen, Marcel P., Vandenbroucke, Bert
Publikováno v:
MNRAS, Volume 529, Issue 3, April 2024, Pages 2309-2326
Weak gravitational lensing convergence peaks, the local maxima in weak lensing convergence maps, have been shown to contain valuable cosmological information complementary to commonly used two-point statistics. To exploit the full power of weak lensi
Externí odkaz:
http://arxiv.org/abs/2312.08450