Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Grainge, Keith J B"'
Autor:
Perrott, Yvette C., SM, Gopika, Edge, Alastair C., Grainge, Keith J. B., Green, David A., Saunders, Richard D. E.
The cool-core galaxy cluster RXJ1720.1+2638 hosts extended radio emission near the cluster core, known as a minihalo. The origin of this emission is still debated and one piece of the puzzle has been the question of whether the supermassive black hol
Externí odkaz:
http://arxiv.org/abs/2211.09948
Autor:
Perrott, Yvette C., Carvalho, Pedro, Elwood, Patrick J., Grainge, Keith J. B., Green, David A., Javid, Kamran, Jin, Terry Z., Rumsey, Clare, Saunders, Richard D. E.
RXJ1720.1+2638 is a cool-core, 'relaxed-appearing' cluster with a minihalo previously detected up to 8.4 GHz, confined by X-ray-detected cold fronts. We present observations of the minihalo at 13 - 18 GHz with the Arcminute Microkelvin Imager telesco
Externí odkaz:
http://arxiv.org/abs/2109.08233
Autor:
Javid, Kamran, Olamaie, Malak, Perrott, Yvette C., Carvalho, Pedro, Grainge, Keith J. B., Hobson, Michael P., Rumsey, Clare, Saunders, Richard D. E.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 483, Issue 3, March 2019, Pages 3529 to 3544
We present a comparison of mass estimates for $54$ galaxy cluster candidates from the second Planck catalogue (PSZ2) of Sunyaev-Zel'dovich sources. We compare the mass values obtained with data taken from the Arcminute Microkelvin Imager (AMI) radio
Externí odkaz:
http://arxiv.org/abs/1805.01991
Autor:
Perrott, Yvette C., Cantwell, Therese M., Carey, Steve H., Elwood, Patrick J., Feroz, Farhan, Grainge, Keith J. B., Green, David A., Hobson, Michael P., Javid, Kamran, Jin, Terry Z., Pooley, Guy G., Razavi-Ghods, Nima, Rumsey, Clare, Saunders, Richard D. E., Scaife, Anna M. M., Schammel, Michel P., Scott, Paul F., Shimwell, Timothy W., Titterington, David J., Waldram, Elizabeth M.
The Arcminute Microkelvin Imager (AMI) carried out a blind survey for galaxy clusters via their Sunyaev-Zel'dovich effect decrements between 2008 and 2011. The first detection, known as AMI-CL J0300+2613, has been reobserved with AMI equipped with a
Externí odkaz:
http://arxiv.org/abs/1709.05136
Autor:
Hickish, Jack, Razavi-Ghods, Nima, Perrott, Yvette C., Titterington, David J., Carey, Steve H., Scott, Paul F., Grainge, Keith J. B., Scaife, Anna M. M., Alexander, Paul, Saunders, Richard D. E., Crofts, Mike, Javid, Kamran, Rumsey, Clare, Jin, Terry Z., Ely, John A., Shaw, Clive, Northrop, Ian G., Pooley, Guy, D'Alessandro, Robert, Doherty, Peter, Willatt, Greg P.
The Arcminute Microkelvin Imager (AMI) telescopes located at the Mullard Radio Astronomy Observatory near Cambridge have been significantly enhanced by the implementation of a new digital correlator with 1.2 MHz spectral resolution. This system has r
Externí odkaz:
http://arxiv.org/abs/1707.04237
Autor:
Rumsey, Clare, Perrott, Yvette C., Olamaie, Malak, Saunders, Richard D. E., Hobson, Michael P., Stroe, Andra, Schammel, Michel P., Grainge, Keith J. B.
AMI observations towards CIZA J2242+5301, in comparison with observations of weak gravitational lensing and X-ray emission from the literature, are used to investigate the behaviour of non-baryonic dark matter (NBDM) and gas during the merger. Analys
Externí odkaz:
http://arxiv.org/abs/1706.02239
Autor:
Olamaie, Malak, Hobson, Michael P., Feroz, Farhan, Grainge, Keith J. B., Lasenby, Anthony, Perrott, Yvette C., Rumsey, Clare, Saunders, Richard D. E.
A new method is presented for modelling the physical properties of galaxy clusters. Our technique moves away from the traditional approach of assuming specific parameterised functional forms for the variation of physical quantities within the cluster
Externí odkaz:
http://arxiv.org/abs/1705.10712
Autor:
Rumsey, Clare, Olamaie, Malak, Perrott, Yvette C., Russell, Helen R., Feroz, Farhan, Grainge, Keith J. B., Handley, Will J., Hobson, Michael P., Saunders, Richard D. E., Schammel, Michel P.
Using Arcminute Microkelvin Imager (AMI) SZ observations towards ten CLASH clusters we investigate the influence of cluster mergers on observational galaxy cluster studies. Although selected to be largely relaxed, there is disagreement in the literat
Externí odkaz:
http://arxiv.org/abs/1604.06120
Autor:
Perrott, Yvette C., Scaife, Anna M. M., Green, David A., Grainge, Keith J. B., Hurley-Walker, Natasha, Jin, Terry Z., Rumsey, Clare, Titterington, David J.
The Arcminute Microkelvin Imager Galactic Plane Survey (AMIGPS) provides mJy-sensitivity, arcminute-resolution interferometric images of the northern Galactic plane at $\approx$ 16 GHz. The first data release covered $76^{\circ} \lessapprox \ell \les
Externí odkaz:
http://arxiv.org/abs/1508.00741
Autor:
Consortium, AMI, Shimwell, Timothy W., Carpenter, John M., Feroz, Farhan, Grainge, Keith J. B., Hobson, Michael P., Hurley-Walker, Natasha, Lasenby, Anthony N., Olamaie, Malak, Perrott, Yvette C., Pooley, Guy G., Rodriguez-Gonzalvez, Carmen, Rumsey, Clare, Saunders, Richard D. E., Schammel, Michel P., Scott, Paul F., Titterington, David J., Waldram, Elizabeth M.
We present CARMA observations of a massive galaxy cluster discovered in the AMI blind SZ survey. Without knowledge of the cluster redshift a Bayesian analysis of the AMI, CARMA and joint AMI & CARMA uv-data is used to quantify the detection significa
Externí odkaz:
http://arxiv.org/abs/1305.6655