Limit on graviton mass using stacked galaxy cluster catalogs from SPT-SZ, Planck-SZ and SDSS-redMaPPer
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2018.09.017
Abstract: In the last few years, there has been a resurgence of interest in obtaining observational bounds on the graviton mass, following the detection of gravitational waves, because of the versatility of massive graviton theories in… read more here.
Keywords: mass; galaxy cluster; mass using; cluster catalogs ... See more keywords
Nonparametric Estimation of Galaxy Cluster Emissivity and Detection of Point Sources in Astrophysics With Two Lasso Penalties
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the American Statistical Association"
DOI: 10.1080/01621459.2020.1796676
Abstract: Abstract Astrophysicists are interested in recovering the three-dimensional gas emissivity of a galaxy cluster from a two-dimensional telescope image. Blurring and point sources make this inverse problem harder to solve. The conventional approach requires in… read more here.
Keywords: emissivity; point sources; galaxy cluster; astrophysics ... See more keywords
On a possible cosmological evolution of galaxy cluster YX−YSZE scaling relation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2020/12/027
Abstract: An important result from self-similar models that describe the process of galaxy cluster formation is the simple scaling relation $Y_{SZE}D_{A}^{2}/C_{XSZE}Y_X= C$. In this ratio, $Y_{SZE}$ is the integrated Sunyaev-Zel'dovich effect flux of a cluster, its… read more here.
Keywords: xsze; galaxy cluster; relation; scaling relation ... See more keywords
A high coverage view of the thermodynamics and metal abundance in the outskirts of the nearby galaxy cluster Abell 2199
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2204
Abstract: We present a joint Suzaku and XMM-Newton analysis of the outskirts of the nearby galaxy cluster Abell 2199, the only nearby galaxy cluster to be observed with near complete azimuthal coverage with Suzaku. Using the… read more here.
Keywords: cluster abell; thermodynamics; galaxy cluster; outskirts nearby ... See more keywords
SuperModel predictions in the outskirts of the galaxy cluster Zwicky 3146
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa759
Abstract: The relaxed galaxy cluster Zwicky 3146 is analyzed via the SuperModel, a tool already tested on many clusters since 2009. In particular, this analysis is focused on the intracluster medium X-ray temperature data measured by… read more here.
Keywords: cluster zwicky; galaxy cluster; zwicky 3146; cluster ... See more keywords
An extreme case of galaxy and cluster co-evolution at z = 0.7
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2725
Abstract: We report the discovery of eMACS J0252.4−2100 (eMACS J0252), a massive and highly evolved galaxy cluster at z = 0.703. Our analysis of Hubble Space Telescope imaging and VLT/MUSE and Keck/DEIMOS spectroscopy of the system finds a… read more here.
Keywords: galaxy; emacs j0252; evolution; extreme case ... See more keywords
A variable active galactic nucleus at z = 2.06 triply-imaged by the galaxy cluster MACS J0035.4-2015
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1321
Abstract: We report the discovery of a triply imaged active galactic nucleus (AGN), lensed by the galaxy cluster MACS J0035.4-2015 (zd = 0.352). The object is detected in Hubble Space Telescope imaging taken for the RELICS… read more here.
Keywords: triply imaged; emission; object; galaxy cluster ... See more keywords
CLASH: accurate photometric redshifts with 14 HST bands in massive galaxy cluster cores
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1243
Abstract: We present accurate photometric redshifts for galaxies observed by the Cluster Lensing And Supernova survey with Hubble (CLASH). CLASH observed 25 massive galaxy cluster cores with the Hubble Space Telescope in 16 filters spanning 0.2–1.7… read more here.
Keywords: photometric redshifts; massive galaxy; cluster cores; galaxy cluster ... See more keywords
AMI SZ observation of galaxy-cluster merger CIZA J2242+5301: perpendicular flows of gas and dark matter
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1429
Abstract: 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.… read more here.
Keywords: j2242 5301; merger; dark matter; galaxy cluster ... See more keywords
An off-axis galaxy cluster merger: Abell 0141
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty036
Abstract: We present structural analysis results of Abell 0141 (z = 0.23) based on X-ray data. The X-ray luminosity map demonstrates that Abell 0141 (A0141) is a bimodal galaxy cluster, which is separated on the sky by… read more here.
Keywords: cluster; galaxy cluster; sub clusters; abell 0141 ... See more keywords
The role of multiple images and model priors in measuringH0 from supernova Refsdal in galaxy cluster MACS J1149.5+2223
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3113
Abstract: Multiple image gravitational lensing systems with measured time delays provide a promising one-step method for determining $H_0$. MACS J1149, which lenses SN Refsdal into a quad S1-S4, and two other widely separated images, SX and… read more here.
Keywords: multiple images; galaxy; galaxy cluster; macs j1149 ... See more keywords