A5019360961- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Spectroscopy and Laser Applications
- Astrophysical Phenomena and Observations
- Metal-Organic Frameworks: Synthesis and Applications
- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Phase Equilibria and Thermodynamics
- Magnetism in coordination complexes
- Soil erosion and sediment transport
- Lanthanide and Transition Metal Complexes
- Structural Behavior of Reinforced Concrete
- Sulfur Compounds in Biology
- Climate change impacts on agriculture
- Structural Load-Bearing Analysis
- Nutritional Studies and Diet
- Impact of Light on Environment and Health
- Climate change and permafrost
- Cosmology and Gravitation Theories
- Astronomical Observations and Instrumentation
- Remote Sensing in Agriculture
- Aeolian processes and effects
- Agriculture Sustainability and Environmental Impact
Chinese Academy of Sciences
2011-2024
Purple Mountain Observatory
2013-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2012-2024
South China Agricultural University
2022-2024
Université Paris-Saclay
2022-2024
Université Paris Cité
2022-2024
Astrophysique, Instrumentation et Modélisation
2012-2024
Centre National de la Recherche Scientifique
2022-2024
CEA Paris-Saclay
2013-2024
Guangxi University
2023-2024
ABSTRACT We report the discovery of a remarkable concentration massive galaxies with extended X-ray emission at z spec = 2.506, which contains 11 ( M * ≳ 10 ⊙ ) in central 80 kpc region (11.6 σ overdensity). have spectroscopically confirmed 17 member from CO and remaining ones H α . The luminosity, stellar mass content, velocity dispersion all point to collapsed, cluster-sized dark matter halo 200 c 13.9±0.2 , making it most distant X-ray-detected cluster known date. Unlike other clusters...
The study of distant galaxy groups and clusters at the peak epoch star formation is limited by lack a statistically homogeneously selected spectroscopically confirmed sample. Recent discoveries concentrated starburst activities in cluster cores have opened new window to hunt for these structures based on their integrated IR luminosities. Here, we carry out large NOEMA (NOrthern Extended Millimeter Array) program targeting statistical sample infrared-luminous sources associated with...
We present observations of the CO[3-2] emission towards two massive and infrared luminous Lyman Break Galaxies at z = 3.21 2.92, using IRAM Plateau de Bure Interferometer, placing first constraints on molecular gas masses (Mgas) non-lensed LBGs. Their overall properties are consistent with those typical (Main-Sequence) galaxies their redshifts, specific star formation rates ~1.6 ~2.2 Gyr^(-1), despite large luminosities L_IR ~2-3 x 10^12 Lsun derived from Herschel. With one plausible CO...
A new Gd-MOF constructed with a π-conjugated ligand shows highly luminescent selective sensing of <italic>o</italic>-, <italic>m</italic>-, and <italic>p</italic>-nitrophenol Fe<sup>3+</sup> ions in an aqueous system.
Using NOEMA and ALMA 3mm line scans, we measured spectroscopic redshifts of six new dusty galaxies at 3.5 < z 4.2 by solidly detecting [CI](1-0) CO transitions. The sample was selected from the COSMOS GOODS-North super-deblended catalogs with far-infrared (FIR) photometric phot > 6 based on template IR spectral energy distribution (SED) known submillimeter = 4–6. Dust SED analyses explain overestimate seemingly cold dust temperatures ( T d ) steep Rayleigh-Jeans (RJ) slopes, providing...
We present an identification of dust-attenuated star-forming galactic-disk substructures in a typical galaxy (SFG), UDF2, at $z = 2.696$. To date, containing significant buildup stellar mass and actively forming stars have yet to be found (i.e., main-sequence) SFGs > 2$. This is due the strong dust attenuation common massive galaxies epoch scarcity high-resolution, high-sensitivity extinction-independent imaging. search for disk substructures, we subtracted central stellar-mass from...
We measure the dust and gas content of three sub-millimeter galaxies (SMGs) in GN20 proto-cluster at $z=4.05$ using new IRAM Plateau de Bure interferometer (PdBI) CO(4-3) 1.2-3.3 mm continuum observations. All these SMGs are heavily obscured, with UV-based star formation rate (SFR) estimates significantly smaller than ones derived from bolometric infrared (IR), consistent spatial offsets revealed by HST CO imaging. Based also on evaluations specific SFR, CO-to-H$_2$ conversion factor...
A dual-functional Eu-MOF sensor for quantitatively detecting temperature and humidity.
We analyse measurements of the evolving stellar mass (M0) at which bending star-forming main sequence (MS) occurs over 0<z<4. find M0~10^10Msun 0<z<1, then M0 rises up to ~10^11Msun z=2, and stays flat or slowly increases towards higher redshifts. When converting values into hosting dark matter halo masses, we show that this behaviour is remarkably consistent with cold- hot-accretion transition mass, as predicted by theory defined redshift-independent Mshock z<1.4 rising Mstream z>1.4 (for...
We report CO detections in 17 out of 19 infrared ultraluminous QSO (IR QSO) hosts observed with the IRAM 30m telescope. The cold molecular gas reservoir these objects is a range 0.2--2.1$\times 10^{10}M_\odot$ (adopting CO-to-${\rm H_2}$ conversion factor $\alpha_{\rm CO}=0.8 M_\odot {\rm (K km s^{-1} pc^2)^{-1}}$). find that properties IR QSOs, such as mass, star formation efficiency ($L_{\rm FIR}/L^\prime_{\rm CO}$) and (1-0) line widths, are indistinguishable from those local galaxies...
Abstract We present <?CDATA $\mathrm{HCN}\ J=4\to 3$?> and ${\mathrm{HCO}}^{+}\ maps of six nearby star-forming galaxies, NGC 253, 1068, IC 342, M82, M83, 6946, obtained with the James Clerk Maxwell Telescope as part MALATANG survey. All galaxies were mapped in central 2′ × region at 14″ (FWHM) resolution (corresponding to linear scales ∼0.2–1.0 kpc). The L IR – ′ dense relation, where gas is traced by emission, measured our sample spatially resolved found follow correlation established...
We present maps of atomic carbon [CI](1-0) and [CI](2-1) at a linear resolution ~1kpc scale for sample one HII, six LINER, three Seyfert five starburst galaxies observed with Herschel. compare spatial distributions two [CI] lines that CO(1-0) emission, find both distribute similarly to emission in most galaxies. luminosity ratio L'_[CI](1-0)/L'_CO(1-0), L'_[CI](2-1)/L'_CO(1-0), L'_[CI](2-1)/L'_[CI](1-0) (hereafter R_[CI]) f_70/f_160. R_[CI] f_70/f_160 are centrally peaked starbursts; whereas...
Soil water retention curve (SWRC) plays an important role in simulating soil movement and assessing holding capacity availability. Comparison of fitness between different models to determine the best SWRC model specific regions is required. In this study, three popular models, van Genuchten, Brooks Corey Gardner model, were selected for comparing a degraded alpine meadow region on eastern Tibetan Plateau. Fitness, error distribution along with key parameters compared. For each horizon,...
Abstract Phenology is an important indicator of global climate change. Revealing the spatiotemporal characteristics crop phenology vital for ameliorating adverse effects change and guiding regional agricultural production. This study evaluated variability soybean’s phenological stages key growth periods, assessed their sensitivity to climatic factors, utilizing a long-term dataset (1992–2018) soybean associated meteorological data collected at 51 stations across China. The results showed...
Modern (sub)millimeter interferometers, such as ALMA and NOEMA, offer high angular resolution unprecedented sensitivity. This provides the possibility to characterize morphology of gas dust in distant galaxies. To assess capabilities current software recovering morphologies surface brightness profiles interferometric observations, we tested performance Spergel model for fitting uυ -plane, which has been recently implemented IRAM GILDAS ( uv_fit ). provide an alternative Sérsic profile, with...
Molecular gas, which serves as the fuel for star formation, and its relationship with atomic gas are essential understanding how galaxies regulate their forming activities. We conducted IRAM 30m observations of 23 nearby spiral part CHANG-ES project to investigate distribution molecular Kennicutt–Schmidt formation law in these galaxies. By combining results masses studied previous work, we aim scaling relations that connect stellar baryonic Tully-Fisher relation. Based on spatially resolved...
Abstract Gamma-ray bursts (GRBs) are considered the most violent explosions in Universe. Numerous studies have analyzed formation rate of long gamma-ray (LGRBs), which originate from core collapse massive stars, comparison with star (SFR). It is found that LGRB at redshift z < 1 significantly distinct SFR and higher. Moreover, due to threshold detectors, structured jets GRBs also affect detection numbers different redshifts, all influence calculation rate. Thus we investigate low further...
Abstract We present the analysis of a comprehensive sample 352 early-type galaxies using public data, to investigate correlations between CO luminosities and mid-infrared observed by Wide-field Infrared Survey Explorer. find strong both (1–0) (2–1) 12 μ m luminosity, boasting correlation coefficient greater than 0.9 an intrinsic scatter smaller 0.1 dex. The consistent slopes for relationships suggest that line ratio R 21 lacks with emission in galaxies, which is significantly different from...
A new Eu–MOF constructed by a multidentate ligand with Lewis basic pyridyl site shows highly luminescent selective sensing of the <italic>o</italic>-, <italic>m</italic>- and <italic>p</italic>-nitrophenol.
Abstract The Ångström‐Prescott model (referred to as the A‐P model) is one of most accurate and widely used models for estimating global solar radiation (Rs). In absence Rs measurements given regional discrepancy parameters, it crucial increase availability these parameters applicability parameter‐predicted in different regions. this study, we evaluated compared performance calibrated eight predictive terms using daily meteorological data from 105 stations seven natural geographic zones...
Submillimetre galaxies represent a rapid growth phase of both star formation and massive galaxies. Mapping SMGs in galaxy protoclusters provides key insights into where how these extreme starbursts take place connections with the assembly large-scale structure early Universe. We search for at 850$\,\mu m$ using JCMT/SCUBA-2 two $z=2.24$, BOSS1244 BOSS1542, detect 43 54 sources $S_{850}>4\,$mJy $4\sigma$ level within an effective area 264$\,$arcmin$^2$, respectively. construct intrinsic...
Abstract Biological soil crust (BSC), as a groundcover, is widely intergrown with grass. The effects of grass combined BSCs on slope hydrology and erosion during rainfall are still unclear. In this study, simulated experiments were applied to flume four different cover treatments, namely, bare (CK), (GC), BSC, GC + observe the processes runoff sediment yield. Additionally, moisture at depths infiltration was observed. results showed that generated by for all treatments in following order:...