supported by the Fundamental Research Funds for the Central Universities,the National Key Research and Development Program of China(Grant No.2020YFC2201500);the National Natural Science Foundation of China(Grant Nos.12147103,11821505,11975236,and 12235008);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB23030100)。
For space-based gravitational wave(GW)detection,the main noise source for massive black hole binaries(MBHBs)is attributed to approximately 107 double white dwarf binaries in the foreground.For a GW source,the amplitud...
supported by the National Key Research And Development Program of China(No.2022YFF0711500);the National Natural Science Foundation of China(NSFC,Grant No.12373097);the Basic and Applied Basic Research Foundation Project of Guangdong Province(No.2024A1515011503);the Guangzhou Science and Technology Funds(2023A03J0016)。
Open clusters(OCs)serve as invaluable tracers for investigating the properties and evolution of stars and galaxies.Despite recent advancements in machine learning clustering algorithms,accurately discerning such clust...
supported by the Postdoctoral Fellowship Program of CPSF(Grant No.GZB20240308);the National Natural Science Foundation of China(Grant No.12273009)。
Fast radio burst(FRB)is a type of extragalactic radio signal characterized by millisecond duration,extremely high brightness temperature,and large dispersion measure.It remains a mystery in the universe.Advancements i...
We know about black holes primarily on two mass scales(e.g.,see Figure 22 of ref.[1]).Supermassive black holes inhabit the centers of galaxies,where they sometimes power active galactic nuclei(AGN).Their populations c...
supported in part by the National Natural Science Foundation of China(11821505);supported in part by the National Key Research and Development Program of China(2020YFC2201501);in part by the National Natural Science Foundation of China(12075297 and 12235019);supported in part by the National Key R&D Program of China(2021YFC2203001);supported by the National Natural Science Foundation of China(12147132);supported by the National Key Program for Science and Technology Research and Development(2020YFC2201400,2022YFC2205201);supported in part by the National Key R&D Program of China under(2021YFC2201901);supported in part by JSPS Kakenhi Grant-in-Aid for Scientific Research(17H06358,19K03870 and 23K03385);supported by the National Key R&D Program of China(2021YFC2201903);National Natural Science Foundation of China(12003059).
The space-based laser interferometers,LISA,Taiji and TianQin,are targeting to observe milliHz gravitational waves(GWs)in the 2030s.The joint observations from multiple space-based detectors yield significant advantage...
Our view on galaxy evolution has changed significantly over the past decade,with considerable attention now being paid to better understanding the full baryon cycle.This includes careful characterisation of the gas fl...
Understanding the dark matter distribution throughout a galaxy can provide insight into its elusive nature. Numerous density profiles, such as the Navarro, Frenk and White model, have been created in an attempt to stu...
supported through HLM’s Program Penelitian Pengabdian Masyarakat ITB(P2MI)Astronomy Division,FMIPA ITB grant 2022-2023;Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX13AC07G and by other grants and contracts。
We present optical spectra of 10 Galactic Wolf-Rayet(WR)stars that consist of five WN and five WC stars.The optical observation was conducted using a low-resolution spectrograph NEO-R1000(λ/Δλ~1000)at GAO-ITB RTS(2...
supported by the National Natural Science Foundation of China(NSFC,Grant Nos.11988101 and12041302);the International Partnership Program of the Chinese Academy of Sciences(grant No.114A11KYSB20210010);National Key R&D Program of China No.2023YFA1608004;operated by the California Institute of Technology under a contract with the National Aeronautics and Space Administration(80NM0018D0004);the support of the Tianchi Talent Program of Xinjiang Uygur Autonomous Region;the Collaborative Research Center 1601(SFB 1601 sub-project A2);funded by the Deutsche Forschungsgemeinschaft—500700252;support from the University of Cologne and its Global Faculty program。
Molecular oxygen abundance is a key parameter in understanding the chemical network of the interstellar medium.We estimate the molecular oxygen column density and abundance for a sample of Galactic massive star format...
supported by the National Natural Science Foundation of China(NSFC,grant Nos.12173013,12103062,12003045,and 11903012);the National Key Basic R&D Program of China via 2019YFA0405500;supported by the Natural Science Foundation of Hebei Province under grant A2021205006 and A2019205166;by the project of the Hebei provincial department of science and technology under grant number 226Z7604G;the science research grants from the China Manned Space Project。
Using 9943 OB-type stars from LAMOST DR7 in the solar neighborhood,we fit the vertical stellar density profile with the model including a single exponential distribution at different positions(R,Φ).The distributions ...