136 citations
- National Astronomical ObservatoriesCN21 papers
- Chinese Academy of SciencesCN19 papers
- University of Chinese Academy of SciencesCN8 papers
- Center for Astrophysics Harvard & SmithsonianUS4 papers
- National Institute for AstrophysicsIT4 papers
- Astronomical Observatory of RomeIT3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Korea Astronomy and Space Science InstituteKR3 papers
- Max Planck Institute for Extraterrestrial PhysicsDE3 papers
- University of Science and Technology ChittagongBD3 papers
- Brera Astronomical ObservatoryIT2 papers
- Bulgarian Academy of SciencesBG2 papers
7 papers · 1 filter
Broad-line AGNs with Candidate Intermediate-mass Black holes in the Sloan Digital Sky Survey
Xiaobo Dong, Tinggui Wang, Weimin Yuan +5
We have conducted a systematic search of AGNs with IMBHs from the SDSS DR4. As results we found 245 candidates of broad-line AGN with M_{BH}<10^6 \Msun estimated from the luminosit…
Systematic study of a large sample of NLS1 galaxies from SDSS: first results
Weimin Yuan, Hongyan Zhou, Tinggui Wang +6
This proceedings contribution summarizes first results obtained from a systematic study of 2011 NLS1 galaxies, as presented in Zhou et al. (2006, ApJS 166, 128). The sample was com…
Observations of AGNs using PACT
D. Bose, V. R. Chitnis, P. R. Vishwanath +5
We report our observations on 4 AGNs viz, Mkn421, Mkn501, 1ES1426+428 and ON231 belonging to a sub-class called blazars. The observations were carried out using the Pachmarhi Array…
New, nearby bright southern ultracool dwarfs
T. R. Kendall, H. R. A. Jones, D. J. Pinfield +5
We report the discovery of twenty-one hitherto unknown bright southern ultracool dwarfs with spectral types in the range M7 to L5.5, together with new observations of a further thr…
An inner disk below the ADAF: the intermediate spectral state of black hole accretion
B. F. Liu, ; F. Meyer, E. Meyer-Hofmeister
Aims: The hard and soft spectral states of black hole accretion are understood as connected with ADAF accretion (truncated disk) and standard disk accretion, respectively. However,…
Orbital Evolution of Algol Binaries with a Circumbinary Disk
Wen-Cong Chen, Xiang-Dong Li, Sheng-Bang Qian
It is generally thought that conservative mass transfer in Algol binaries causes their orbits to be wider, in which the less massive star overflows its Roche-lobe. The observed dec…