Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Tittley, Eric"'
Autor:
Massey, Richard, Harvey, David, Liesenborgs, Jori, Richard, Johan, Stach, Stuart, Swinbank, Mark, Taylor, Peter, Williams, Liliya, Clowe, Douglas, Courbin, Frederic, Edge, Alastair, Israel, Holger, Jauzac, Mathilde, Joseph, Remy, Jullo, Eric, Kitching, Thomas D., Leonard, Adrienne, Merten, Julian, Nagai, Daisuke, Nightingale, James, Robertson, Andrew, Romualdez, Luis Javier, Saha, Prasenjit, Smit, Renske, Tam, Sut Ieng, Tittley, Eric
We present integral field spectroscopy of galaxy cluster Abell 3827, using ALMA and VLT/MUSE. It reveals an unusual configuration of strong gravitational lensing in the cluster core, with at least seven lensed images of a single background spiral gal
Externí odkaz:
http://arxiv.org/abs/1708.04245
Autor:
Massey, Richard, Williams, Liliya, Smit, Renske, Swinbank, Mark, Kitching, Thomas, Harvey, David, Jauzac, Mathilde, Israel, Holger, Clowe, Douglas, Edge, Alastair, Hilton, Matt, Jullo, Eric, Leonard, Adrienne, Liesenborgs, Jori, Merten, Julian, Mohammed, Irshad, Nagai, Daisuke, Richard, Johan, Robertson, Andrew, Saha, Prasenjit, Santana, Rebecca, Stott, John, Tittley, Eric
Publikováno v:
MNRAS 449 (2015) 3393
Galaxy cluster Abell 3827 hosts the stellar remnants of four almost equally bright elliptical galaxies within a core of radius 10kpc. Such corrugation of the stellar distribution is very rare, and suggests recent formation by several simultaneous mer
Externí odkaz:
http://arxiv.org/abs/1504.03388
Publikováno v:
Science, Vol. 347 no. 6229 pp. 1462-1465 (2015)
Collisions between galaxy clusters provide a test of the non-gravitational forces acting on dark matter. Dark matter's lack of deceleration in the `bullet cluster collision' constrained its self-interaction cross-section \sigma_DM/m < 1.25cm2/g (68%
Externí odkaz:
http://arxiv.org/abs/1503.07675
Publikováno v:
MNRAS (December 11, 2014) Vol. 445: 2462-2475
We perform cosmological simulations of the intergalactic medium (IGM) at redshift z ~ 3 using the numerical gravity-hydrodynamics codes GADGET-3 and Enzo for the purpose of modelling the gaseous environments of galaxies. We identify haloes in the sim
Externí odkaz:
http://arxiv.org/abs/1410.5812
Autor:
Harvey, David, Tittley, Eric, Massey, Richard, Kitching, Thomas D., Taylor, Andy, Pike, Simon R., Kay, Scott T., Lau, Erwin T., Nagai, Daisuke
We develop a statistical method to measure the interaction cross-section of Dark Matter, exploiting the continuous minor merger events in which small substructures fall into galaxy clusters. We find that by taking the ratio of the distances between t
Externí odkaz:
http://arxiv.org/abs/1310.1731
Autor:
Harvey, David, Massey, Richard, Kitching, Thomas, Taylor, Andy, Jullo, Eric, Kneib, Jean-Paul, Tittley, Eric, Marshall, Philip J.
Publikováno v:
2013MNRAS.433.1517H
Direct evidence for the existence of dark matter and measurements of its interaction cross-section have been provided by the physical offset between dark matter and intra- cluster gas in merging systems like the Bullet Cluster. Although a smaller sig
Externí odkaz:
http://arxiv.org/abs/1305.2117
The first major star-forming galaxies and Active Galactic Nuclei will produce Balmer and higher order extended haloes during the Epoch of Reionization through the scattering of Lyman resonance line photons off the surrounding neutral intergalactic ga
Externí odkaz:
http://arxiv.org/abs/1201.5499
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 401, Issue 1, pp. 77-87 (2010).
We examine the temperature structure of the intergalactic medium IGM) surounding a hard radiation source, such as a Quasi-Stellar Object (QSO), as it responds to the onset of helium reionization by the source. We model the reionization using a radiat
Externí odkaz:
http://arxiv.org/abs/1004.4765
Autor:
Tittley, Eric R., Meiksin, Avery
We examine the temperature structure of the IGM due to the passage of individual ionisation fronts using a radiative transfer (RT) code coupled to a particle-mesh (PM) N-body code. Multiple simulations were performed with different spectra of ionisin
Externí odkaz:
http://arxiv.org/abs/astro-ph/0605317