A5071056669- Radio Astronomy Observations and Technology
- Astrophysics and Cosmic Phenomena
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Geophysics and Gravity Measurements
- Space Exploration and Technology
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Superconducting and THz Device Technology
University of Manchester
2020-2024
ABSTRACT We present QUIJOTE intensity and polarization maps in four frequency bands centred around 11, 13, 17, 19 GHz, covering approximately 29 000 deg2, including most of the northern sky region. These result from 9000 h observations taken between May 2013 June 2018 with first multifrequency instrument (MFI), have angular resolutions 1°, sensitivities within range 35–40 µK per 1° beam, being a factor ∼2–4 worse intensity. discuss data processing pipeline employed, basic characteristics...
This work focuses on the study of anomalous microwave emission (AME), an important mechanism between 10 and 60,GHz whose polarisation properties are not yet fully understood is therefore a potential contaminant for future cosmic background (CMB) observations. We used new QUIJOTE-MFI maps at 11, 13, 17, 19,GHz obtained from combination public wide survey data additional 1800,h dedicated raster scan observations together with other ancillary data, including WMAP Planck to AME in three Galactic...
Anomalous Microwave Emission (AME) is a significant component of Galactic diffuse emission in the frequency range $10$-$60\,$GHz and new window into properties sub-nanometre-sized grains interstellar medium. We investigate morphology AME $\approx10^{\circ}$ diameter $\lambda$ Orionis ring by combining intensity data from QUIJOTE experiment at $11$, $13$, $17$ $19\,$GHz C-Band All Sky Survey (C-BASS) $4.76\,$GHz, together with 19 ancillary datasets between $1.42$ $3000\,$GHz. Maps physical...
We present early results from the COMAP Galactic Plane Survey conducted between June 2019 and April 2021, spanning $20^\circ<\ell<40^\circ$ in longitude $|b|<1.\!\!^{\circ}5$ latitude with an angular resolution of $4.5^{\prime}$. The full survey will span $\ell \sim 20^{\circ}$- $220^{\circ}$ be first large-scale radio continuum at $30$ GHz sub-degree resolution. initial part survey, including diffuse emission spectral energy distributions (SEDs) HII regions supernova remnants. Using low...
The C-Band All-Sky Survey (C-BASS) has observed the Galaxy at 4.76GHz with an angular resolution of $0.73^\circ$ full-width half-maximum, and detected Galactic synchrotron emission high signal-to-noise ratio over entire northern sky ($\delta > -15^{\circ}$). We present results a spatial correlation analysis foregrounds mid-to-high ($b 10^\circ$) latitudes using preliminary version C-BASS intensity map. jointly fit for synchrotron, dust, free-free components between $20$ $1000$GHz look...
ABSTRACT The Andromeda galaxy (M 31) is our closest neighbouring spiral galaxy, making it an ideal target for studying the physics of interstellar medium in a very similar to own. Using new observations M 31 at 4.76 GHz by C-Band All-Sky Survey (C-BASS), and all available radio data 1° resolution, we produce integrated spectrum put constraints on synchrotron spectral index anomalous microwave emission (AME) from 31. We use aperture photometry modelling fit 31, subtract comprehensive model...
Abstract Anomalous Microwave Emission (AME) is a major component of Galactic emission in the frequency band 10–60 GHz and commonly modelled as rapidly rotating spinning dust grains. The photodissociation region (PDR) at boundary λ-Orionis H ii has been identified by several recent analyses one brightest dust-emitting sources sky. We investigate Barnard 30 dark cloud, cloud embedded within PDR. use total-power observations from CO Mapping Array Project (COMAP) pathfinder instrument 26–34GHz...
The Andromeda galaxy (M31) is our closest neighbouring spiral galaxy, making it an ideal target for studying the physics of interstellar medium in a very similar to own. Using new observations M31 at 4.76GHz by C-Band All-Sky Survey (C-BASS), and all available radio data $1^\circ$ resolution, we produce integrated spectrum put constraints on synchrotron spectral index anomalous microwave emission (AME) from M31. We use aperture photometry modelling fit M31, subtract comprehensive model...
Anomalous Microwave Emission (AME) is a major component of Galactic emission in the frequency band 10 to 60 GHz and commonly modelled as rapidly rotating spinning dust grains. The photodissociation region (PDR) at boundary $\lambda$-Orionis Hii has been identified by several recent analyses one brightest emitting sources sky. We investigate Barnard 30 dark cloud, cloud embedded within PDR. use total-power observations from CO Mapping Array Project (COMAP) pathfinder instrument 26 34GHz with...
We present a point-source detection algorithm that employs the second order Spherical Mexican Hat wavelet filter (SMHW2), and use it on C-BASS northern intensity data to produce catalogue of point-sources. This allows us cross-check flux-density scale against existing source surveys, provides basis for mask which will be used in subsequent cosmic microwave background (CMB) analyses. The SMHW2 entire sky at once, avoiding complications from edge effects arising when filtering small patches....