A5074706051- Radio Astronomy Observations and Technology
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Astrophysics and Star Formation Studies
- Dark Matter and Cosmic Phenomena
- Galaxies: Formation, Evolution, Phenomena
- Advanced Chemical Physics Studies
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Molecular Spectroscopy and Structure
- Superconducting and THz Device Technology
- Atmospheric Ozone and Climate
- Ionosphere and magnetosphere dynamics
- Astro and Planetary Science
- Advanced Computational Techniques and Applications
- Solar and Space Plasma Dynamics
- Climate variability and models
- Satellite Image Processing and Photogrammetry
- Geophysics and Gravity Measurements
- Radio, Podcasts, and Digital Media
University of Manchester
2011-2021
Formation of stars is now believed to be tightly linked the dynamical evolution interstellar filaments in which they form. In this paper we analyze density structure and kinematics a small network infrared dark filaments, SDC13, observed both dust continuum molecular line emission with IRAM 30m telescope. These observations reveal presence 18 compact sources amongst two most massive, MM1 MM2, are located at intersection point parsec-long filaments. The dense gas velocity dispersion along...
Context. The understanding of the formation process massive stars ( ≳ 8 M⊙) is limited by a combination theoretical complications and observational challenges. high UV luminosities give rise to chemical complexity in their natal molecular clouds affect dynamical properties circumstellar envelopes.
Cosmological Birefringence (CB) is a phenomenon, caused by parity violating modifications to electrodynamics, whereby the linear polarisation angle of light changes as photons traverse vacuum. It possible use number different analysis techniques constrain this effect using Cosmic Microwave Background (CMB) observations. We investigate two methods constraining direction dependent birefringence for present and future CMB experiments including BICEP/Keck, Simons Observatory (SO), LiteBIRD ....
We present the first detailed case study using quadratic estimators (QE) to diagnose and remove systematics in observed Cosmic Microwave Background (CMB) maps. In this work we focus on temperature polarization leakage. use an iterative QE analysis systematics, analogy de-lensing, recovering primordial B-mode signal systematic introduce a new Gaussian filtering scheme crucial stable convergence of cleaning procedure validate with comparisons semi-analytical forecasts. limitations method by...