Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Dong Xiao bo"'
Occupying the intermediate-mass regime of the accretion--jet parameter space, radio continuum emission from active galactic nuclei with black hole mass M_BH <~ 10^6 Msun (low-mass AGNs) is a valuable probe to the physics of relativistic jets. Yet the
Externí odkaz:
http://arxiv.org/abs/2401.15895
We present an updated catalog of 46,753 radial velocity (RV) standard stars selected from the APOGEE DR17. These stars cover the Northern and Southern Hemispheres almost evenly, with 62% being red giants and 38% being main-sequence stars. These RV st
Externí odkaz:
http://arxiv.org/abs/2307.05291
Autor:
Zhu, Yongda, Ma, Hai-Xia, Dong, Xiao-Bo, Huang, Yang, Mistele, Tobias, Peng, Bo, Long, Qian, Wang, Tianqi, Chang, Liang, Jin, Xi
Aiming at discriminating different gravitational potential models of the Milky Way, we perform tests based on the kinematic data powered by the Gaia DR2 astrometry, over a large range of $(R,z)$ locations. Invoking the complete form of Jeans equation
Externí odkaz:
http://arxiv.org/abs/2211.13153
We present a method by using the phase characteristics of radio observation data for pulsar search and candidate identification. The phase characteristics are relations between the pulsar signal and the phase correction in the frequency-domain, and w
Externí odkaz:
http://arxiv.org/abs/2211.08789
We assemble a large sample of 12,784 high-velocity stars with total velocity $\it{V}_{\rm{GSR}}\ge {\rm 300}$ km s$^{-1}$, selected from RAVE DR5, SDSS DR12, LAMOST DR8, APOGEE DR16, GALAH DR2, and $Gaia$ EDR3. In this sample, 52 are marginally hyper
Externí odkaz:
http://arxiv.org/abs/2207.04406
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 SDSS fiber spectra. To reduce the flux contamination from both the fib
Externí odkaz:
http://arxiv.org/abs/2111.00636
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 galaxies and their central super massive black holes (SMBHs). Doing so, w
Externí odkaz:
http://arxiv.org/abs/2111.00635
Autor:
Liu, Wen-Juan, Lira, Paulina, Yao, Su, Xu, Dawei, Wang, Jing, Dong, Xiao-Bo, Martínez-Palomera, Jorge
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 systematic investigation of changing-look (CL) and large-variability AGNs. We
Externí odkaz:
http://arxiv.org/abs/2103.11935
Autor:
Liu, He-Yang, Liu, Wen-Juan, Dong, Xiao-Bo, Zhou, Hongyan, Wang, Tinggui, Lu, Honglin, Yuan, Weimin
A new, complete sample of 14,584 broad-line AGNs at $z<0.35$ is presented, which are uncovered homogeneously from the complete database of galaxies and quasars observed spectroscopically in the Sloan Digital Sky Survey Seventh Data Release. The stell
Externí odkaz:
http://arxiv.org/abs/1906.05597
A new sample of 204 low-mass black holes (LMBHs) in active galactic nuclei (AGNs) is presented with black hole masses in the range of (1-20) * 10^5 M_sun. The AGNs are selected from a systematic search among galaxies in the Seventh Data Release (DR 7
Externí odkaz:
http://arxiv.org/abs/1803.04330