190 citations · 1.3k across the 41 of their papers we have counts for
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Spectral Energy and Age Distributions for 51 Globular Cluster Candidates
Jun Ma, Xu Zhou, Jiansheng Chen +5
This paper is the fourth in a series presenting spectrophotometry of 51 globular cluster candidates, that were detected by Mochejska et al. in the nearby galaxy M33 using the data…
Photometric Redshift Determination with the BATC Multicolor System
Lifang Xia, Xu Zhou, Jun Ma +6
In this paper, we present the methodology of photometric redshift determination with the BATC 15-color system by using hyperz program. Both simulated galaxies and real galaxies wit…
15 colour photometry of Landolt SA95 standard star field
Xu Zhou, Zhaoji Jiang, Jun Ma +6
In this paper, we present a set of photometric observations in 15 colors of stars in the Landolt covered by the system range from 300 nm to 1000 nm. Visual magnitudes of the stars…
Multicolor photometry of 145 of the HII regions in M33
Linhua Jiang, Jun Ma, Xu Zhou +5
This paper is the first in a series presenting CCD multicolor photometry for 145 HII regions, selected from 369 candidate regions from Boulesteix et al. (1974), in the nearby spira…
The nature of ultra-luminous X-ray sources in NGC4565
H. Wu, S. J. Xue, X. Y. Xia +2
We report the optical identifications of two X-ray luminous point sources in the spiral galaxy NGC4565 based on archive data of Chandra and the Hubble Space Telescope. The central…
Chandra observation of Abell 1689: New determination of mass distribution and comparison to lensing measurements
Sui-Jian Xue, Xiang-Ping Wu
We present a new estimate of the projected X-ray mass of Abell 1689 observed with Chandra, in an attempt to clarify the issue of whether or not there exists a discrepancy between X…