Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Keven Ren"'
Publikováno v:
Remote Sensing, Vol 15, Iss 9, p 2238 (2023)
Coral reefs and their associated marine communities are increasingly threatened by anthropogenic climate change. A key step in the management of climate threats is an efficient and accurate end-to-end system of coral monitoring that can be generally
Externí odkaz:
https://doaj.org/article/1c96a3bf28b34534912e5ccbe140b844
Publikováno v:
ISPRS Journal of Photogrammetry and Remote Sensing. 181:20-26
Sun glint contamination is a significant problem for high-resolution remote sensing over aquatic environments. Sun glint is a particular issue for researchers using aerial imagery to assess shallow water benthic communities, as it may be wrongly clas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::835cc6cac908dc7e2d30810424c17396
https://doi.org/10.1016/j.isprsjprs.2021.09.004
https://doi.org/10.1016/j.isprsjprs.2021.09.004
Autor:
Lily R Whitler, Andrei Mesinger, Michele Trenti, Tommaso Treu, Mark Dijkstra, Keven Ren, Charlotte Mason, Laura Pentericci
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:3602-3613
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b5face29b0f4a49783646383412701b
https://doi.org/10.1093/mnras/staa1178
https://doi.org/10.1093/mnras/staa1178
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48e2470415ebfa879e77c4ec908f3ec9
http://arxiv.org/abs/2106.07027
http://arxiv.org/abs/2106.07027
Autor:
Keven Ren, Michele Trenti
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14f916b79bbce108079ce12b3f6cc433
Autor:
B. Smith, Seth H. Cohen, Rolf A. Jansen, J. S. Robinson, J. S. B. Wyithe, Donald P. Schneider, Rogier A. Windhorst, M. Mechtley, V. Marian, R. E. Ryan, X. Fan, Nimish P. Hathi, H. J. A. Röttgering, Evan Scannapieco, V. R. Jones, Anton M. Koekemoer, Linhua Jiang, Haojing Yan, William C. Keel, Glenn Schneider, Madeline A. Marshall, Knud Jahnke, Keven Ren
Publikováno v:
The Astrophysical Journal, 900(1), 21
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69bd385b1defc5cd408a97ea486d8582
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1e6ac9c20d98de5250518e9c6cc073d
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8383e23e7a6c06af285bb5351bfca6f
http://arxiv.org/abs/1802.06802
http://arxiv.org/abs/1802.06802
Publikováno v:
Astrophysical Journal; 3/20/2018, Vol. 856 Issue 1, p1-1, 1p