output
19932026
most citedThe Gaia mission

7.1k citations

Showing 2020Show all

530 papers · 1 filter

astro-ph.GA2020★ 38 cited

Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 3516

Hai-Cheng. Feng, Chen. Hu, Sha-Sha. Li +7

The changes of broad emission lines should be a crucial issue to understanding the physical properties of changing-look active galactic nucleus (CL-AGN). Here, we present the resul…

astro-ph.GA2020★ 18 cited

Age-metallicity dependent stellar kinematics of the Milky Way disc from LAMOST and Gaia

Yaqian Wu, Maosheng Xiang, Yuqin Chen +5

We investigate the stellar kinematics of the Galactic disc in 7 13\,kpc using a sample of 118\,945 red giant branch (RGB) stars from LAMOST and Gaia. We characterize th…

astro-ph.SR2020

Detecting shock waves in non-fundamental mode RR Lyrae using large sample of spectra in SDSS and LAMOST

Xiao-Wei Duan, Xiao-Dian Chen, Li-Cai Deng +4

Steps toward the nature inside RR Lyrae variables can not only improve our understanding of variable stars but also innovate the precision when we use them as tracers to map the st…

astro-ph.SR2020★ 14 cited

A mag Super Flare of An Ultracool Star Detected by System

L. P. Xin, H. L. Li, J. Wang +21

In this paper, we report the detection and follow-ups of a super stellar flare GWAC\,181229A with an amplitude of 9.5 mag on a M9 type star by and the de…

astro-ph.HE2020★ 14 cited

Insight-HXMT observations of Swift J0243.6+6124: the evolution of RMS pulse fractions at super-Eddington luminosity

P. J. Wang, L. D. Kong, S. Zhang +116

Based on Insight-HXMT data, we report on the pulse fraction evolution during the 2017-2018 outburst of the newly discovered first Galactic ultraluminous X-ray source (ULX) Swift J0…

astro-ph.IM2020★ 7 cited

HCGrid: A Convolution-based Gridding Framework for RadioAstronomy in Hybrid Computing Environments

Hao Wang, Ce Yu, Bo Zhang +2

Gridding operation, which is to map non-uniform data samples onto a uniformly distributedgrid, is one of the key steps in radio astronomical data reduction process. One of the main…

astro-ph.GA2020★ 84 cited

Dust polarized emission observations of NGC 6334; BISTRO reveals the details of the complex but organized magnetic field structure of the high-mass star-forming hub-filament network

D. Arzoumanian, R. Furuya, T. Hasegawa +145

[Abridged] Filaments and hubs have received special attention recently thanks to studies showing their role in star formation. While the column density and velocity structures of b…

astro-ph.GA2020★ 11 cited

Multiple populations in low mass globular clusters: Palomar 13

Baitian Tang, Yue Wang, Ruoyun Huang +7

Since the discovery of chemically peculiar stars in globular clusters in the last century, the study of multiple populations has become increasingly important, given that chemical…

astro-ph.HE2020★ 38 cited

Improved deep learning techniques in gravitational-wave data analysis

Heming Xia, Lijing Shao, Junjie Zhao +1

In recent years, convolutional neural network (CNN) and other deep learning models have been gradually introduced into the area of gravitational-wave (GW) data processing. Compared…

astro-ph.HE2020★ 45 cited

X-ray flares from the stellar tidal disruption by a candidate supermassive black hole binary

Xinwen Shu, Wenjie Zhang, Shuo Li +8

Optical transient surveys have led to the discovery of dozens of stellar tidal disruption events (TDEs) by massive black hole in the centers of galaxies. Despite extensive searches…

astro-ph.IM2020★ 36 cited

The Tsinghua University-Ma Huateng Telescopes for Survey: Overview and Performance of the System

Ji-Cheng Zhang, Xiao-Feng Wang, Jun Mo +16

Over the past decade, time-domain astronomy in optical bands has developed rapidly with the operations of some wide-field survey facilities. However, most of these surveys are cond…

astro-ph.IM2020★ 6 cited

Adapting Active Reflector Technology for greater sensitivity and sky-coverage in FAST-like Telescopes

Jian-Ling Li, Bo Peng, Cheng-Jin Jin +5

The Five-hundred-meter Aperture Spherical radio Telescope (FAST), the largest single dish radio telescope in the world, has implemented an innovative technology for its huge reflec…

astro-ph.HE2020★ 18 cited

Periodic and Phase-locked Modulation in PSR B1929+10 Observed with FAST

F. F. Kou, W. M. Yan, B. Peng +17

We present a detailed single-pulse analysis for PSR B1929+10 based on observations with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The main pulse and interpu…

astro-ph.GA2020★ 24 cited

The Arecibo Ultra-Deep Survey

Hongwei Xi, Lister Staveley-Smith, Bi-Qing For +5

The Arecibo Ultra Deep Survey (AUDS) is a blind HI survey aimed at detecting galaxies beyond the local Universe in the 21-cm emission line of neutral hydrogen (HI). The Arecibo …

astro-ph.GA2020★ 21 cited

Discovery of A candidate Hypervelocity star originated from the Sagittarius Dwarf Spheroidal galaxy

Yang Huang, Qingzheng Li, Huawei Zhang +5

In this letter, we report the discovery of an intriguing HVS (J1443+1453) candidate that is probably from the Sagittarius Dwarf Spheroidal galaxy (Sgr dSph). The star is an old and…

astro-ph.SR2020★ 5 cited

Infrared diagnostics of the solar magnetic field with Mg I 12 m lines: forward-model results

Xin Li, YongLiang Song, H. Uitenbroek +3

The Mg I 12.32 and 12.22 m lines are a pair of emission lines that present a great advantage for accurate solar magnetic field measurement. They potentially contribute to the di…

astro-ph.IM2020★ 1 cited

Mapping Diffuse Emission in Lyman UV band

Li Ji, Zheng Lou, Jinlong Zhang +38

The CAFE (Census of warm-hot intergalactic medium, Accretion, and Feedback Explorer) and LyRIC (Lyman UV Radiation from Interstellar medium and Circum-galactic medium) have been pr…

astro-ph.SR2020★ 29 cited

Evolved Massive Stars at Low-metallicity III. A Source Catalog for the Large Magellanic Cloud

Ming Yang, Alceste Z. Bonanos, Biwei Jiang +9

We present a clean, magnitude-limited (IRAC1 or WISE115.0 mag) multiwavelength source catalog for the LMC. The catalog was built upon crossmatching () and deblending ($3…

astro-ph.SR2020★ 11 cited

Pebbles in an Embedded Protostellar Disk: The Case of CB26

Chuan-Peng Zhang, Ralf Launhardt, Yao Liu +2

Planetary cores are thought to form in proto-planetary disks via the growth of dusty solid material. However, it is unclear how early this process begins. We study the physical str…

astro-ph.SR2020★ 7 cited

A nonlinear solar magnetic field calibration method for the filter-based magnetograph by the residual network

Jingjing Guo, Xianyong Bai, Yuanyong Deng +5

The method of solar magnetic field calibration for the filter-based magnetograph is normally the linear calibration method under weak-field approximation that cannot generate the s…

astro-ph.SR2020★ 9 cited

The Formation and Eruption of A Sigmoidal Filament Driven by Rotating Network Magnetic Fields

Jun Dai, Haisheng Ji, Leping Li +2

We present the formation and eruption of a sigmoidal filament driven by rotating network magnetic fields (RNFs) near the center of the solar disk, which was observed by the one-met…

astro-ph.HE2020★ 17 cited

A single pulse study of PSR J1022+1001

Yi Feng, George Hobbs, Di Li +11

Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we have recorded 10^5 single pulses from PSR J1022+1001. We studied the polarization properties, their energ…

astro-ph.SR2020★ 11 cited

M Subdwarf Research. II. Atmospheric Parameters and Kinematics

Shuo Zhang, A-Li Luo, Georges Comte +12

Applying the revised M subdwarf classification criteria discussed in Paper I to LAMOST DR7, combining the M subdwarf sample from Savcheva et al, a new M subdwarf sample was constru…

astro-ph.EP2020★ 10 cited

Revisiting the HD 21749 Planetary System with Stellar Activity Modeling

Tianjun Gan, Sharon Xuesong Wang, Johanna K. Teske +26

HD 21749 is a bright ( mag) K dwarf at 16 pc known to host an inner terrestrial planet HD 21749c as well as an outer sub-Neptune HD 21749b, both delivered by TESS. Follow-up…