Yunnan Observatories

output

19962026

most citedSDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

2.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2021 · astro-ph.GAShow all

20 papers · 2 filters

astro-ph.GA2021★ 26 cited

A census of optically dark massive galaxies in the early Universe from magnification by lensing galaxy clusters

Xinwen Shu, Lei Yang, Daizhong Liu +10

We present ALMA 870um and JCMT SCUBA2 850um dust continuum observations of a sample of optically dark and strongly lensed galaxies in the cluster fields. The ALMA and SCUBA2 observ…

astro-ph.GA2021★ 45 cited

An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS field (AS2COSPEC): Survey Description and First Results

Chian-Chou Chen, Cheng-Lin Liao, Ian Smail +11

We introduce an ALMA band 3 spectroscopic survey, targeting the brightest submillimeter galaxies (SMGs) in the COSMOS field. Here we present the first results based on the 18 prima…

astro-ph.GA2021★ 10 cited

A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING) III: results from the SDSS spectroscopic surveys

Yang-wei Zhang, Yang Huang, Jin-ming Bai +3

As the third installment in a series systematically searching dual active galactic nuclei (AGN) amongst merging galaxies, we present the results of 20 dual AGNs found by using the…

astro-ph.GA2021★ 7 cited

A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING) II: first results from long-slit spectroscopic observations

Yang-wei Zhang, Yang Huang, Jin-ming Bai +3

Building a large sample of kiloparsec (kpc)-scale dual active galactic nuclei (AGNs) amongst merging galaxies is of vital importance to understand the co-evolution between host gal…

astro-ph.GA2021★ 139 cited

Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

Michael Janssen, Heino Falcke, Matthias Kadler +236

Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimeter wavelengths have the power to reveal the launching and initial collimation region of e…

astro-ph.GA2021★ 6 cited

Identification of new M31 star cluster candidates from PAndAS images using convolutional neural networks

Shoucheng Wang, Bingqiu Chen, Jun Ma +7

Context.Identification of new star cluster candidates in M31 is fundamental for the study of the M31 stellar cluster system. The machine-learning method convolutional neural networ…

astro-ph.GA2021

The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope

P. Scicluna, F. Kemper, I. McDonald +89

The Nearby Evolved Stars Survey (NESS) is a volume-complete sample of $\sim$ 850 Galactic evolved stars within 3\,kpc at (sub-)mm wavelengths, observed in the CO $J =$ (2 $-$ 1) and…

astro-ph.GA2021★ 2 cited

The HASHTAG project: The First Submillimeter Images of the Andromeda Galaxy from the Ground

Matthew W. L. Smith, Stephen A. Eales, Thomas G. Williams +46

Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, the brightness is significantly reduced at long submillimeter wavelengths com…

astro-ph.GA2021★ 40 cited

Reverberation Mapping Measurements of Black Hole Masses and Broad-Line Region Kinematics in Mrk 817 and NGC 7469

Kai-Xing Lu, Jian-Guo Wang, Zhi-Xiang Zhang +7

We present the results from a spectroscopic monitoring campaign to obtain reverberation-mapping measurements and investigate the broad-line region kinematics for active galactic nu…

astro-ph.GA2021★ 9 cited

Characterization of dense Planck clumps observed with Herschel and SCUBA-2

E. Mannfors, M. Juvela, L. Bronfman +15

We aim to characterize a diverse selection of dense, potentially star-forming cores, clumps, and clouds within the Milky Way in terms of their dust emission and SF activity. We stu…

astro-ph.GA2021

Reverberation Mapping of Two Luminous Quasars: the Broad-line Region Structure and Black Hole Mass

Sha-Sha Li, Sen Yang, Zi-Xu Yang +21

We report the results of a multi-year spectroscopic and photometric monitoring campaign of two luminous quasars, PG~0923+201 and PG~1001+291, both located at the high-luminosity en…

astro-ph.GA2021★ 13 cited

Molecular Cloud Cores with High Deuterium Fractions: Nobeyama Mapping Survey

Ken'ichi Tatematsu, Gwanjeong Kim, Tie Liu +35

We present the results of on-the-fly mapping observations of 44 fields containing 107 SCUBA-2 cores in the emission lines of molecules, N $_{2}$ H $^{+}$ , HC $_{3}$ N, and CCS at 82 $-$ 94 GHz…

astro-ph.GA2021★ 13 cited

Mrk 1239: a Type-2 Counterpart of Narrow-line Seyfert-1?

Xiang Pan, Hongyan Zhou, Chenwei Yang +10

We present new spectrophotometric and spectropolarimetric observations of Mrk 1239, one of the 8 prototypes that defines type-1 narrow-line Seyfert galaxies (NLS1s). Unlike the oth…

astro-ph.GA2021★ 8 cited

Multi-epoch spectroscopy of Mg II broad absorption line transitions

Weimin Yi, John Timlin

Built upon a sample of 134 quasars that was dedicated to a systematic study of \mgii-BAL variability from Yi et al. (2019a), we investigate these quasars showing \mgii-BAL disappea…

astro-ph.GA2021★ 20 cited

The Carbon-to-H $_{2}$ , CO-to-H $_{2}$ Conversion Factors and Carbon Abundance on Kiloparsec Scales in Nearby Galaxies

Qian Jiao, Yu Gao, Yinghe Zhao

Using the atomic carbon [CI](1 $-$ 0) and [CI](2 $-$ 1) emission maps observed with the $H er sc h e l S p a ce O b ser v a t or y$ , and CO(1 $-$ 0), HI, infrared and submm maps from literatures, we…

astro-ph.GA2021★ 9 cited

Radial stellar populations of AGN-host dwarf galaxies in SDSS-IV MaNGA survey

Wei Cai, Yinghe Zhao, Jin-Ming Bai

Based on MaNGA integral field unit (IFU) spectroscopy we search 60 AGN candidates, which have stellar masses $M_{⋆} ⩽ 5 \times 1 0^{9}$ $M_{⊙}$ and show AGN ionization si…

astro-ph.GA2021★ 37 cited

Velocity-resolved Reverberation Mapping of Changing-look AGN NGC 2617

Hai-Cheng. Feng, H. T. Liu, J. M. Bai +6

NGC 2617 has attracted a lot of attention after the detection of the changes in spectral type, and its geometry and kinematics of broad-line region (BLR) are still ambiguous. In th…

astro-ph.GA2021★ 17 cited

Local Active Galactic Nuclei with Large Broad-Hα Variability Reside in Red Galaxies

Wen-Juan Liu, Paulina Lira, Su Yao +4

Inspired by our serendipitous discovery of six AGNs with varying broad-Halpha fluxes over years out of our searching for intermediate-mass black holes (IMBHs), we conduct a systema…