6.6k citations · 7.9k across the 17 of their papers we have counts for
18 papers
A chemo-dynamical search for planet-candidate hosts of possible extragalactic origin
Sun Tiancheng, Chen Xunzhou, Xiang Maosheng +2
To date, all known exoplanetary systems have been identified around stars currently residing in the Milky Way, whereas planets formed in external galaxies remain largely unexplored…
Host--Non-host Differences in Stellar Chemistry, Activity, and Birth Radius: Hints of Distinct Formation Environments for Earth-like Planets and Sub-Neptunes
Xunzhou Chen, Tiancheng Sun, Yuxi +3
Host-star properties provide important clues to planet formation and evolution, yet it remains unclear whether the observed differences between planet-hosting stars and stars witho…
Insights into the Exoplanet Radius Valley from Host-Star Ages, Activity, Chemistry, and Birth Radius
Xunzhou Chen, Tiancheng Sun, Yuxi +3
The radius valley, a bimodal feature in the size distribution of close-in small exoplanets, is widely interpreted as a signature of atmospheric loss and therefore provides a key co…
SpecZoo: An AI-Powered Platform for Spectral Analysis and Visualization in Science and Education
Yuan-Hao Pu, Guo-Hong Lei, Yang Xu +2
Astronomical spectra, which encode rich astrophysical and chemical information, are fundamental to understanding celestial objects and universal laws. The advent of large-scale spe…
Insights into Planet Formation from the Ages, Masses, and Elemental Abundances of Host Stars
Xunzhou Chen, Tiancheng Sun, Lifei Ye
How planetary systems form and evolve is a key question in astronomy. Revealing how host star properties, such as elemental abundances, age, and mass, differ from those of non-host…
Polarization Calibration of the FAST L-band 19-beam Receiver: I. On-axis Mueller Matrix Parameters
Tao-Chung Ching, Carl Heiles, Di Li +6
We present the polarization calibration of the 19-beam receiver at 1420 MHz within the full illumination of the Five-hundred-meter Aperture Spherical Telescope from October 2018 to…
The temporal and spatial variations of lithium abundance in the Galactic disc
Tiancheng Sun, Shaolan Bi, Xunzhou Chen +7
This study investigates the temporal and spatial variations in lithium abundance within the Milky Way using a sample of 22,034 main-sequence turn-off (MSTO) stars and subgiants, ch…
Beam Measurements of Full Stokes Parameters for the FAST L-band 19-beam Receiver
Xunzhou Chen, Tao-Chung Ching, Di Li +7
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has been fully operational since 11 January 2020. We present a comprehensive analysis of the beam structure for eac…
Relations of rotation and chromospheric activity to stellar age for FGK dwarfs from Kepler and LAMOST
Lifei Ye, Shaolan Bi, Jinghua Zhang +9
The empirical relations between rotation period, chromospheric activity, and age can be used to estimate stellar age. To calibrate these relations, we present a catalog, including…
Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars
Tiancheng Sun, Shaolan Bi, Xunzhou Chen +11
The Milky Way underwent significant transformations in its early history, characterised by violent mergers and satellite galaxy accretion. However, recent observations reveal notab…
Planck 2013 results. XXIX. The Planck catalogue of Sunyaev-Zeldovich sources: Addendum
Planck Collaboration, P. A. R. Ade, N. Aghanim +276
We update the all-sky Planck catalogue of 1227 clusters and cluster candidates (PSZ1) published in March 2013, derived from Sunyaev-Zeldovich (SZ) effect detections using the first…
Planck intermediate results. XV. A study of anomalous microwave emission in Galactic clouds
Planck Collaboration, P. A. R. Ade, N. Aghanim +180
Anomalous microwave emission (AME) is believed to be due to electric dipole radiation from small spinning dust grains. The aim of this paper is a statistical study of the basic pro…
Planck 2013 results. XXIX. Planck catalogue of Sunyaev-Zeldovich sources
Planck Collaboration, P. A. R. Ade, N. Aghanim +272
We describe the all-sky Planck catalogue of clusters and cluster candidates derived from Sunyaev--Zeldovich (SZ) effect detections using the first 15.5 months of Planck satellite o…
Planck 2013 results. XVI. Cosmological parameters
Planck Collaboration, P. A. R. Ade, N. Aghanim +261
We present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra. The Planck spectra at high multipoles are extremely well descr…
Long-term variability of extragalactic radio sources in the Planck Early Release Compact Source Catalogue
X. Chen, J. P. Rachen, M. Lopez-Caniego +5
Combining measurements taken using the Wilkinson Microwave Anisotropy Probe (WMAP) from 2001 to 2008 with measurements taken using Planck from 2009 to 2010, we investigate the long…
Planck Early Results. V. The Low Frequency Instrument data processing
A. Zacchei, D. Maino, C. Baccigalupi +146
We describe the processing of data from the Low Frequency Instrument (LFI) used in production of the Planck Early Release Compact Source Catalogue (ERCSC). In particular, we discus…
Planck early results. III. First assessment of the Low Frequency Instrument in-flight performance
A. Mennella, M. Bersanelli, R. C. Butler +158
The scientific performance of the Planck Low Frequency Instrument (LFI) after one year of in-orbit operation is presented. We describe the main optical parameters and discuss photo…
Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Galactic Foreground Emission
B. Gold, N. Odegard, J. L. Weiland +19
[Abridged] We present updated estimates of Galactic foreground emission using seven years of WMAP data. Using the power spectrum of differences between multi-frequency template-cle…