A5046579083- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
Ludwig-Maximilians-Universität München
2022
Institute of Astronomy and Astrophysics, Academia Sinica
2020-2022
National Tsing Hua University
2020-2022
Max Planck Institute for Extraterrestrial Physics
2022
Abstract We present confusion-limited SCUBA-2 450 μ m observations in the COSMOS-CANDELS region as part of James Clerk Maxwell Telescope Large Program Ultra Deep Imaging EAO Survey. Our maps at and 850 cover an area arcmin 2 . achieved instrumental noise levels σ = 0.59 mJy beam −1 0.09 deepest each map. The corresponding confusion are estimated to be 0.65 0.36 Above 4 (3.5 ) threshold, we detected 360 (479) sources 237 (314) m. derive blank-field number counts m, covering flux-density range...
We model dust evolution in Milky Way-like galaxies by post-processing the IllustrisTNG cosmological hydrodynamical simulations order to predict dust-to-gas ratios and grain size distributions. treat grain-size-dependent growth destruction processes using a 64-bin discrete without spatially resolving each galaxy. Our broadly reproduces observed dust--metallicity scaling relation nearby galaxies. The distribution is dominated large grains at $z\gtrsim 3$ small-grain abundance rapidly increases...
We investigate a kinematic scaling relation between the baryonic mass and flat velocity dispersion, i.e. mass-velocity dispersion (MVDR), from brightest cluster galaxies (BCGs) to galaxy clusters. In our studies, of BCGs is mainly estimated by photometry. The profiles are explored with integrated field unit (IFU) Mapping Nearby Galaxies at Apache Point Observatory (MaNGA). For first time, we reveal two significant results 54 MaNGA BCGs: (1) profiles; (2) tight empirical on BCG-cluster scale...
Abstract Although it is generally accepted that massive galaxies form in a two-phased fashion, beginning with rapid mass buildup through intense starburst activities followed by primarily dry mergers mainly deposit stellar at outskirts, the late time growth of brightest cluster (BCGs), most universe, still not well understood. Several independent measurements have indicated slower rate than predictions from theoretical models. We attempt to resolve discrepancy measuring frequency BCGs...
We present confusion-limited SCUBA-2 450-$\mu$m observations in the COSMOS-CANDELS region as part of JCMT Large Program, Ultra Deep Imaging EAO Survey (STUDIES). Our maps at 450 and 850 $\mu$m cover an area arcmin$^2$. achieved instrumental noise levels $\sigma_{\mathrm{450}}=$ 0.59 mJy beam$^{-1}$ $\sigma_{\mathrm{850}}=$ 0.09 deepest each map. The corresponding confusion are estimated to be 0.65 0.36 beam$^{-1}$. Above 4 (3.5) $\sigma$ threshold, we detected 360 (479) sources 237 (314)...