Search Results - "Garsden, H"

A 21-cm power spectrum at 48 MHz, using the Owens Valley Long Wavelength Array by Garsden, H, Greenhill, L, Bernardi, G, Fialkov, A, Price, D C, Mitchell, D, Dowell, J, Spinelli, M, Schinzel, F K

“…ABSTRACT The Large-aperture Experiment to detect the Dark Age (LEDA) was designed to measure the 21-cm signal from neutral hydrogen at Cosmic Dawn, z ≈ 15–30…”
Get full text

Antenna beam characterization for the global 21-cm experiment LEDA and its impact on signal model parameter reconstruction by Spinelli, M, Kyriakou, G, Bernardi, G, Bolli, P, Greenhill, L J, Fialkov, A, Garsden, H

“…ABSTRACT Cosmic dawn, the onset of star formation in the early universe, can in principle be studied via the 21-cm transition of neutral hydrogen, for which a…”
Get full text

Spectral index of the Galactic foreground emission in the 50–87 MHz range by Spinelli, M, Bernardi, G, Garsden, H, Greenhill, L J, Fialkov, A, Dowell, J, Price, D C

“…ABSTRACT Total-power radiometry with individual meter-wave antennas is a potentially effective way to study the Cosmic Dawn (z ∼ 20) through measurement of the…”
Get full text

Design and characterization of the Large-aperture Experiment to Detect the Dark Age (LEDA) radiometer systems by Price, D C, Greenhill, L J, Fialkov, A, Bernardi, G, Garsden, H, Barsdell, B R, Kocz, J, Anderson, M M, Bourke, S A, Craig, J, Dexter, M R, Dowell, J, Eastwood, M W, Eftekhari, T, Ellingson, S W, Hallinan, G, Hartman, J M, Kimberk, R, Lazio, T Joseph W, Leiker, S, MacMahon, D, Monroe, R, Schinzel, F, Taylor, G B, Tong, E, Werthimer, D, Woody, D P

Get full text

Gravitational microlensing of a reverberating quasar broad-line region - I. Method and qualitative results by Garsden, H., Bate, N. F., Lewis, G. F.

“…The kinematics and morphology of the broad emission-line region (BELR) of quasars are the subject of significant debate. The two leading methods for…”
Get full text

Probing planetary mass dark matter in galaxies: gravitational nanolensing of multiply imaged quasars by Garsden, H., Bate, N. F., Lewis, G. F.

“…Gravitational microlensing of planetary-mass objects (or 'nanolensing', as it has been termed) can be used to probe the distribution of mass in a galaxy that…”
Get full text

Gravitational microlensing as a probe of the electron-scattering region in Q2237+0305 by Kedziora, D. J., Garsden, H., Lewis, G. F.

“…Recent observations have provided strong evidence for the presence of an electron-scattering region (ESR) within the central regions of active galactic nuclei…”
Get full text

The water maser in MG 0414+0534: the influence of gravitational microlensing by Garsden, H., Lewis, G. F., Harvey-Smith, L.

“…Water masers have been observed in several high-redshift active galactic nuclei, including the gravitationally lensed quasar MG 0414+0534. This quasar is…”
Get full text

Computational advances in gravitational microlensing: A comparison of CPU, GPU, and parallel, large data codes by Bate, N.F., Fluke, C.J., Barsdell, B.R., Garsden, H., Lewis, G.F.

“…To assess how future progress in gravitational microlensing computation at high optical depth will rely on both hardware and software solutions, we compare a…”
Get full text

Spectral index of the Galactic foreground emission in the 50-87 MHz range with LEDA by Spinelli, M., Bernardi, G., Garsden, H., Greenhill, L.J., Fialkov, A., Dowell, J., Price, D.C.

“…Total power radiometry with individual meter-wave antennas is a potentially effective means to detect the brightness temperature from the 21 cm line of neutral…”
Get full text

Erratum: Spectral index of the Galactic foreground emission in the 50–87 MHz range by Spinelli, M, Bernardi, G, Garsden, H, Greenhill, L J, Fialkov, A, Dowell, J, Price, D C

Get full text

Probing planetary mass dark matter in galaxies: gravitational nanolensing of multiply imaged quasars: Gravitational nanolensing of quasar dark matter by Garsden, H., Bate, N. F., Lewis, G. F.

Get full text

Gravitational microlensing of a reverberating quasar broad-line region - I. Method and qualitative results: Microlensing of a reverberating BELR by Garsden, H., Bate, N. F., Lewis, G. F.

Get full text

PySE: Software for extracting sources from radio images by Carbone, D., Garsden, H., Spreeuw, H., Swinbank, J.D., van der Horst, A.J., Rowlinson, A., Broderick, J.W., Rol, E., Law, C., Molenaar, G., Wijers, R.A.M.J.

“…PySE is a Python software package for finding and measuring sources in radio telescope images. The software was designed to detect sources in the LOFAR…”
Get full text

Gravitational microlensing as a probe of the electron-scattering region in Q2237+0305: Microlensing of the electron-scattering region by Kedziora, D. J., Garsden, H., Lewis, G. F.

Get full text

The water maser in MG 0414+0534: the influence of gravitational microlensing: The water maser in MG 0414+0534 by Garsden, H., Lewis, G. F., Harvey-Smith, L.

Get full text

Development and application of an accurate and flexible automatic aligner by Vonwiller, J, Cleirigh, C, Garsden, H, Kumpf, K, Mountstephens, R, Rogers, I

“…Large databases are useful tools for speech technology research. Their usefulness is greatly enhanced if the data is annotated with time aligned labels. This…”
Get full text

Web-based acquisition, storage, and retrieval of biomedical signals by Lovell, N.H., Magrabi, F., Celler, B.G., Huynh, K., Garsden, H.

“…The Web allows ubiquitous access to distributed databases through standard browser technology. However, appropriate middleware software needs to be developed…”
Get full text

Antenna beam characterisation for the global 21cm experiment LEDA and its impact on signal model parameter reconstruction by Spinelli, M, Kyriakou, G, Bernardi, G, Bolli, P, Greenhill, L. J, Fialkov, A, Garsden, H

“…Cosmic Dawn, the onset of star formation in the early universe, can in principle be studied via the 21cm transition of neutral hydrogen, for which a…”
Get full text

Mitigating calibration errors from mutual coupling with time-domain filtering of 21 cm cosmological radio observations by Charles, N, Kern, N. S, Pascua, R, Bernardi, G, Bester, L, Smirnov, O, Acedo, E. d. L, Abdurashidova, Z, Adams, T, Aguirre, J. E, Baartman, R, Beardsley, A. P, Berkhout, L. M, Billings, T. S, Bowman, J. D, Bull, P, Burba, J, Byrne, R, Carey, S, Chen, K, Choudhuri, S, Cox, T, DeBoer, D. R, Dexter, M, Dillon, J. S, Dynes, S, Eksteen, N, Ely, J, Ewall-Wice, A, Fritz, R, Furlanetto, S. R, Gale-Sides, K, Garsden, H, Gehlot, B. K, Ghosh, A, Gorce, A, Gorthi, D, Halday, Z, Hazelton, B. J, Hewitt, J. N, Hickish, J, Huang, T, Jacobs, D. C, Josaitis, A, Kerrigan, J, Kittiwisit, P, Kolopanis, M, Lanman, A, Liu, A, Ma, Y. -Z, MacMahon, D. H. E, Malan, L, Malgas, K, Malgas, C, Marero, B, Martinot, Z. E, McBride, L, Mesinger, A, Mohamed-Hinds, N, Molewa, M, Morales, M. F, Murray, S, Nikolic, B, Nuwegeld, H, Parsons, A. R, Patra, N, Plante, P. L, Qin, Y, Rath, E, Razavi-Ghods, N, Riley, D, Robnett, J, Rosie, K, Santos, M. G, Sims, P, Singh, S, Storer, D, Swarts, H, Tan, J, Wilensky, M. J, Williams, P. K. G, Wyngaarden, P. v, Zheng, H

“…The 21 cm transition from neutral Hydrogen promises to be the best observational probe of the Epoch of Reionisation (EoR). This has led to the construction of…”
Get full text