E. Carinos
A5092574774- Galaxies: Formation, Evolution, Phenomena
- Radio Astronomy Observations and Technology
- Astronomy and Astrophysical Research
- Blind Source Separation Techniques
- Cosmology and Gravitation Theories
- Superconducting and THz Device Technology
- Wireless Communication Networks Research
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Spectroscopy and Chemometric Analyses
- Real-time simulation and control systems
- Astrophysics and Cosmic Phenomena
- Spectroscopy and Quantum Chemical Studies
- Geophysics and Gravity Measurements
- Antenna Design and Optimization
- Astrophysical Phenomena and Observations
Institut de Recherche en Astrophysique et Planétologie
2024
Aix-Marseille Université
2023
Centre National de la Recherche Scientifique
2023
Laboratoire d’Astrophysique de Marseille
2023
Abstract The detection of primordial B modes the cosmic microwave background (CMB) could provide information about early stages Universe's evolution. faintness this signal requires exquisite calibration accuracy and control instrumental systematic effects which otherwise bias measurements. In work, we study impact an imperfect relative polarisation gain on recovered value tensor-to-scalar ratio r for LiteBIRD experiment, through application blind Needlet Internal Linear Combination (NILC)...
Context. Faint galaxies are theorised to have played a major role, perhaps the dominant in reionising Universe. Their properties, as well Lyman- α emitter (LAE) fraction, X LAE , could provide useful insights into this epoch. Aims. We used four clusters of from Lensed Lyman-alpha MUSE Arcs Sample (LLAMAS) that also deep HST photometry select population intrinsically faint Lyman break (LBGs) and LAEs. study interrelation between these two populations, their fraction LBGs display emission....
LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking major advancement exploration of primordial cosmology and fundamental physics. Orbiting Sun-Earth Lagrangian point L2, this JAXA-led strategic L-class mission will conduct comprehensive mapping CMB polarization across entire sky. During its 3-year mission, LiteBIRD employ three telescopes within 15 unique frequency bands (ranging from 34 through 448 GHz),...
We assess the capabilities of LiteBIRD mission to map hot gas distribution in Universe through thermal Sunyaev-Zeldovich (SZ) effect. Our analysis relies on comprehensive simulations incorporating various sources Galactic and extragalactic foreground emission, while accounting for specific instrumental characteristics LiteBIRD, such as detector sensitivities, frequency-dependent beam convolution, inhomogeneous sky scanning, $1/f$ noise. implement a tailored component-separation pipeline SZ...
Large angular scale surveys in the absence of atmosphere are essential for measuring primordial $B$-mode power spectrum Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders magnitude fainter than temperature anisotropies CMB, in-flight calibration instruments and active suppression systematic effects crucial. We investigate effect changing parameters scanning strategy on effectiveness, themselves, ability distinguish by null-tests. Next-generation...
Future cosmic microwave background (CMB) experiments are primarily targeting a detection of the primordial $B$-mode polarisation. The faintness this signal requires exquisite control systematic effects which may bias measurements. In work, we derive requirements on relative calibration accuracy overall polarisation gain ($\Delta g_\nu$) for LiteBIRD experiment, through application blind Needlet Internal Linear Combination (NILC) foreground-cleaning method. We find that minimum variance...
Abstract We assess the capabilities of LiteBIRD mission to map hot gas distribution in Universe through thermal Sunyaev-Zeldovich (SZ) effect. Our analysis relies on comprehensive simulations incorporating various sources Galactic and extragalactic foreground emission, while accounting for specific instrumental characteristics mission, such as detector sensitivities, frequency-dependent beam convolution, inhomogeneous sky scanning, 1/ f noise. implement a tailored component-separation...
Faint galaxies are theorised to have played a major role in reionising the Universe. Their properties as well Lyman-{\alpha} emitter fraction, could provide useful insight into this epoch. We use four galaxy clusters from Lensed Lyman-alpha MUSE Arcs Sample (LLAMAS) which also deep HST photometry select population of intrinsically faint Lyman Break Galaxies (LBGs) and Emitters (LAEs). study interrelation these two populations, their properties, fraction LBGs that display emission. The...