output
19962026
most citedSDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

2.2k citations

Showing 2000Show all

11 papers · 1 filter

astro-ph2000★ 23 cited

New Evidence for the Unified Scheme of BL Lac Objects and Fri Radio Galaxies

J. M. Bai, Myung Gyoon Lee

In this paper, we collect radio and X-ray observations for most Fanaroff-Riley I (FRI) radio galaxies in the Zirbel-Baum radio galaxy sample, and investigate the distribution of th…

astro-ph2000

Emissive Mechanism on Spectral Variability of Blazars in High Frequencies

Jiancheng Wang, Jirong Mao

The new results of the evolution of the synchrotron peak for Mrk 421 are mostly likely related to the particle acceleration process. In order to account for the above results, we p…

astro-ph2000★ 6 cited

Further detections of OH masers in carbon stars with silicate features

M. Szymczak, R. Szczerba, P. S. Chen

A sample of J-type carbon stars was searched for OH maser emission. The new detection of three OH lines towards two silicate carbon stars is reported. In V778 Cyg, previously known…

astro-ph2000★ 162 cited

Low and intermediate-mass close binary evolution and the initial - final mass relation

Zhanwen Han, Christopher A. Tout, Peter P. Eggleton

Using Eggleton's stellar evolution code, we carry out 150 runs of Pop I binary evolution calculations, with the initial primary mass between 1 and 8 solar masses the initial mass r…

astro-ph2000★ 12 cited

Evaporation: The change from accretion via a thin disk to a coronal flow

Friedrich Meyer, Bifang Liu, Emmi Meyer-Hofmeister

We present a model for a corona above a geometrically thin standard disk around a black hole. This corona is fed by matter from the thin disk which evaporates from the cool layers…

astro-ph2000★ 3 cited

A simple method of determining the Hubble constant

Yi-Ping Qin

Bidirectional relativistic proper motions of radio components of nearby extragalactic sources give a strong constraint on the determination of the Hubble constant . Under the…

astro-ph2000★ 4 cited

Distinguishing RBL-like objects and XBL-like objects with the peak emission frequency of the overall energy spectrum

Yi-Ping Qin, G. Z. Xie, Xue-Tang Zheng

We investigate quantitatively how the peak emission frequency of the overall energy spectrum is at work in distinguishing RBL-like and XBL-like objects. We employ the sample of Gio…

astro-ph2000★ 93 cited

The hardness-duration correlation in the two classes of gamma-ray bursts

Yi-Ping Qin, Guang-Zhong Xie, Sui-Jian Xue +2

The well-known hardness-duration correlation of gamma-ray bursts (GRBs) is investigated with the data of the 4B catalog. We find that, while the hardness ratio and the duration are…

astro-ph2000★ 11 cited

Correlations between various hardness ratios of gamma-ray bursts

Yi-Ping Qin, Guang-Zhong Xie, Xue-Tang Zheng +1

We study correlations between various hardness ratios of gamma-ray bursts (GRBs) and investigate if there are any differences between the two classes of the objects in the distribu…

astro-ph2000

Black hole X-ray binaries: A new view on soft-hard spectral transitions

F. Meyer, B. F. Liu, E. Meyer-Hofmeister

The theory of coronal evaporation predicts the formation of an inner hole in the cool thin accretion disk for mass accretion rates below a certain value (~ 1/50 of the Eddington ma…

astro-ph2000★ 61 cited

The triple degenerate star WD1704+481

P. F. L. Maxted, T. R. Marsh, C. K. J. Moran +1

WD1704+481 is a visual binary in which both components are white dwarfs. We present spectra of the H-alpha line of both stars which show that one component (WD1704+481.2 = Sandulea…