Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Ren, Keven"'
Flavour-violating couplings of Higgs boson with stop and scharm quarks could be very important as in addition to lifting the mass of the Higgs boson by a few GeV, it could also play a vital phenomenological role in reducing the Supersymmetry breaking
Externí odkaz:
http://arxiv.org/abs/2209.04134
Autor:
Ren, Keven, Trenti, Michele
Modeling the evolution of the number density distribution of quasars through the Quasar Luminosity Function (QLF) is critical to improve our understanding of the connection between black holes, galaxies and their halos. Here we present a novel semi-e
Externí odkaz:
http://arxiv.org/abs/2110.03853
Significant clustering around the rarest luminous quasars is a feature predicted by dark matter theory combined with number density matching arguments. However, this expectation is not reflected by observations of quasars residing in a diverse range
Externí odkaz:
http://arxiv.org/abs/2106.07027
Autor:
Marshall, Madeline A., Mechtley, Mira, Windhorst, Rogier A., Cohen, Seth H., Jansen, Rolf A., Jiang, Linhua, Jones, Victoria R., Wyithe, J. Stuart B., Fan, Xiaohui, Hathi, Nimish P., Jahnke, Knud, Keel, William C., Koekemoer, Anton M., Marian, Victor, Ren, Keven, Robinson, Jenna, Röttgering, Huub J. A., Ryan Jr., Russell E., Scannapieco, Evan, Schneider, Donald P., Schneider, Glenn, Smith, Brent M., Yan, Haojing
We report on a Hubble Space Telescope search for rest-frame ultraviolet emission from the host galaxies of five far-infrared-luminous $z\simeq{}6$ quasars and the $z=5.85$ hot-dust free quasar SDSS J0005-0006. We perform 2D surface brightness modelin
Externí odkaz:
http://arxiv.org/abs/2007.13859
The Quasar Luminosity Function (QLF) offers insight into the early co-evolution of black holes and galaxies. It has been characterized observationally up to redshift $z\sim6$ with clear evidence of a double power-law shape, in contrast to the Schecht
Externí odkaz:
http://arxiv.org/abs/2004.07412
Autor:
Whitler, Lily R., Mason, Charlotte A., Ren, Keven, Dijkstra, Mark, Mesinger, Andrei, Pentericci, Laura, Trenti, Michele, Treu, Tommaso
The reionization of hydrogen is closely linked to the first structures in the universe, so understanding the timeline of reionization promises to shed light on the nature of these early objects. In particular, transmission of Lyman alpha (Ly$\alpha$)
Externí odkaz:
http://arxiv.org/abs/1911.03499
The Ultraviolet Luminosity Function (UVLF) is a key observable for understanding galaxy formation from cosmic dawn. There has been considerable debate on whether Schechter-like LFs (characterized by an exponential drop-off at the bright end) that wel
Externí odkaz:
http://arxiv.org/abs/1905.04848
The most luminous galaxies at high-redshift are generally considered to be hosted in massive dark-matter halos of comparable number density, hence residing at the center of overdensities/protoclusters. We assess the validity of this assumption by inv
Externí odkaz:
http://arxiv.org/abs/1802.06802
Publikováno v:
In ISPRS Journal of Photogrammetry and Remote Sensing November 2021 181:20-26
Autor:
Giles, Anna Barbara1 (AUTHOR) agiles239@gmail.com, Ren, Keven2 (AUTHOR), Davies, James Edward2 (AUTHOR), Abrego, David1 (AUTHOR), Kelaher, Brendan1 (AUTHOR)
Publikováno v:
Remote Sensing. May2023, Vol. 15 Issue 9, p2238. 16p.