Zobrazeno 1 - 10
of 301
pro vyhledávání: '"ILIEV, P. T."'
Autor:
Park, Hyunbae, Jung, Intae, Yajima, Hidenobu, Sorce, Jenny, Shapiro, Paul R., Ahn, Kyungjin, Ocvirk, Pierre, Teyssier, Romain, Yepes, Gustavo, Iliev, Ilian T., Lewis, Joseph S. W.
Recently, NIRSpec PRISM/CLEAR observations by JWST have begun providing rest-frame UV continuum measurements of galaxies at $z\gtrsim7$, revealing signatures of Ly$\alpha$ damping-wing (DW) absorption by the intergalactic medium (IGM). We develop a m
Externí odkaz:
http://arxiv.org/abs/2410.07377
Autor:
Ocvirk, Pierre, Lewis, Joseph S. W., Conaboy, Luke, Dubois, Yohan, Bethermin, Matthieu, Sorce, Jenny G., Aubert, Dominique, Shapiro, Paul R., Dawoodbhoy, Taha, Lee, Joohyun, Teyssier, Romain, Yepes, Gustavo, Gottlöber, Stefan, Iliev, Ilian T., Ahn, Kyungjin, Park, Hyunbae
We investigate the spatial offsets between dust and ultraviolet (UV) emission in high-redshift galaxies using the Cosmic Dawn III (CoDa III) simulation, a state-of-the-art fully coupled radiation-hydrodynamics cosmological simulation. Recent observat
Externí odkaz:
http://arxiv.org/abs/2409.05946
Autor:
Choudhury, Madhurima, Ghara, Raghunath, Zaroubi, Saleem, Ciardi, Benedetta, Koopmans, Leon V. E., Mellema, Garrelt, Shaw, Abinash Kumar, Acharya, Anshuman, Iliev, I. T., Ma, Qing-Bo, Giri, Sambit K.
The high redshift 21-cm signal promises to be a crucial probe of the state of the intergalactic medium (IGM). Understanding the connection between the observed 21-cm power spectrum and the physical quantities intricately associated with the IGM is cr
Externí odkaz:
http://arxiv.org/abs/2407.03523
Autor:
Noble, Leon, Kamran, Mohd, Majumdar, Suman, Murmu, Chandra Shekhar, Ghara, Raghunath, Mellema, Garrelt, Iliev, Ilian T., Pritchard, Jonathan R.
The morphology of the 21-cm signal emitted by the neutral hydrogen present in the intergalactic medium (IGM) during the Epoch of Reionization (EoR) depends both on the properties of the sources of ionizing radiation and on the underlying physical pro
Externí odkaz:
http://arxiv.org/abs/2406.03118
Autor:
Ghara, Raghunath, Shaw, Abinash Kumar, Zaroubi, Saleem, Ciardi, Benedetta, Mellema, Garrelt, Koopmans, Léon V. E., Acharya, Anshuman, Choudhury, Madhurima, Giri, Sambit K., Iliev, Ilian T., Ma, Qing-Bo, Mertens, Florent
Publikováno v:
A&A 687, A252 (2024)
The redshifted 21-cm signal from the epoch of reionization (EoR) directly probes the ionization and thermal states of the intergalactic medium during that period. In particular, the distribution of the ionized regions around the radiating sources dur
Externí odkaz:
http://arxiv.org/abs/2404.11686
Autor:
Giri, Sambit K., Bianco, Michele, Schaeffer, Timothée, Iliev, Ilian T., Mellema, Garrelt, Schneider, Aurel
During the epoch of reionization (EoR), the 21-cm signal allows direct observation of the neutral hydrogen (HI) in the intergalactic medium (IGM). In the post-reionization era, this signal instead probes HI in galaxies, which traces the dark matter d
Externí odkaz:
http://arxiv.org/abs/2403.04838
Autor:
Hirling, Patrick, Bianco, Michele, Giri, Sambit K., Iliev, Ilian T., Mellema, Garrelt, Kneib, Jean-Paul
Detailed modeling of the evolution of neutral hydrogen in the intergalactic medium during the Epoch of Reionization, $5 \leq z \leq 20$, is critical in interpreting the cosmological signals from current and upcoming 21-cm experiments such as the Low-
Externí odkaz:
http://arxiv.org/abs/2311.01492
Autor:
Ma, Qing-Bo, Ghara, Raghunath, Ciardi, Benedetta, Iliev, Ilian T., Koopmans, Léon V. E., Mellema, Garrelt, Mondal, Rajesh, Zaroubi, Saleem
To self-consistently model galactic properties, reionization of the intergalactic medium, and the associated 21-cm signal, we have developed the algorithm polar by integrating the one-dimensional radiative transfer code grizzly with the semi-analytic
Externí odkaz:
http://arxiv.org/abs/2304.09508
Autor:
Dawoodbhoy, Taha, Shapiro, Paul R., Ocvirk, Pierre, Lewis, Joseph S. W., Aubert, Dominique, Sorce, Jenny G., Ahn, Kyungjin, Iliev, Ilian T., Park, Hyunbae, Teyssier, Romain, Yepes, Gustavo
When the first galaxies formed and starlight escaped into the intergalactic medium to reionize it, galaxy formation and reionization were both highly inhomogeneous in time and space, and fully-coupled by mutual feedback. To show how this imprinted th
Externí odkaz:
http://arxiv.org/abs/2302.08523
Autor:
Gan, H., Mertens, F. G., Koopmans, L. V. E., Offringa, A. R., Mevius, M., Pandey, V. N., Brackenhoff, S. A., Ceccotti, E., Ciardi, B., Gehlot, B. K., Ghara, R., Giri, S. K., Iliev, I. T., Munshi, S.
Publikováno v:
A&A 669, A20 (2023)
Detecting the 21-cm signal from the Epoch of Reionisation (EoR) is challenging due to the strong astrophysical foregrounds, ionospheric effects, radio frequency interference and instrumental effects. Understanding and calibrating these effects are cr
Externí odkaz:
http://arxiv.org/abs/2209.07854