The Lacerta OB1 Association (2008)
Lac OB1 is a nearby OB association in its final stage of star formation. While the member stars suggest an expansion time scale of tens of Myr, the latest star formation episode, as manifested by the...
The pulsating hot subdwarf Balloon 090100001: results of the 2005 multisite campaign (2008)
Baran, A., Oreiro, R., Pigulski, A., Hernandez, F. Perez, Ulla, A., Reed, M. D., ...
We present the results of a multisite photometric campaign on the pulsating sdB star Balloon 090100001. The star is one of the two known hybrid hot subdwarfs with both long- and short-period...
Raiteri, C. M., Villata, M., Larionov, V. M., Gurwell, M. A., Chen, W. P.
We present and analyse the WEBT multifrequency observations of 3C 454.3 in the 2007-2008 observing season, including XMM-Newton observations and near-IR spectroscopic monitoring, and compare the...
Vercellone, S., Chen, A. W., Vittorini, V., Giuliani, A., D'Ammando, F., Tavani, M., ...
[Abridged] We report on a multiwavelength observation of the blazar 3C 454.3 (which we dubbed "crazy diamond") carried out on November 2007 by means of the astrophysical satellites AGILE, INTEGRAL,...
Raiteri, C. M., Villata, M., Chen, W. P., Kurtanidze, O. M., Nilsson, K., ...
The quasar-type blazar 3C 454.3 underwent a phase of high activity in summer and autumn 2007, which was intensively monitored in the radio-to-optical bands by the Whole Earth Blazar Telescope (WEBT)....
Stellar contents and star formation in the young open cluster Stock 8 (2008)
Jose, J, Pandey, A. K, Ojha, D. K, Ogura, K, Chen, W. P, Bhatt, B. C, ...
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The Taiwanese-American Occultation Survey: The Multi-Telescope Robotic Observatory (2008)
Lehner, M. J., Marshall, S. L., Schwamb, M. E., ...
The Taiwanese-American Occultation Survey (TAOS) operates four telescopes to search for occultations of stars by Kuiper Belt Objects. This paper provides a detailed description of the TAOS...
Stellar contents and star formation in the young star cluster Be 59 (2008)
Pandey, A. K, Sharma, S, Ogura, K, Ojha, D. K, Chen, W. P, Bhatt, B. C, ...
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Stellar contents and star formation in the young open cluster Stock 8 (2007)
Jose, Jessy, Pandey, A. K., Ojha, D. K., Ogura, K., Chen, W. P., Bhatt, B. C., ...
We present $UBVI_c$ CCD photometry of the young open cluster Stock 8 with the aim to study the basic properties and star formation scenario in this region. The radius of the cluster is found to be...
Stellar contents and star formation in the young star cluster Be 59 (2007)
Pandey, A. K., Sharma, Saurabh, Ogura, K., Ojha, D. K., Chen, W. P., Bhatt, B. C., ...
We present $UBVI_C$ CCD photometry of the young open cluster Be 59 with the aim to study the star formation scenario in the cluster. The radial extent of the cluster is found to be $\sim$ 10 arcmin...
Star formation in young star cluster NGC1893 (2007)
Sharma, S, Pandey, A. K, Ojha, D. K, Chen, W. P, Ghosh, S. K, Bhatt, B. C, ...
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Star formation in young star cluster NGC 1893 (2007)
Sharma, Saurabh, Pandey, A. K., Ojha, D. K., Chen, W. P., Ghosh, S. K., Bhatt, B. C., ...
We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation. Using near-infrared colours, slitless...
Reed, M. D., O'Toole, S. J., Terndrup, D. M., Eggen, J. R., An, D., ...
We present follow-up observations of pulsating subdwarf B (sdB) stars as part of our efforts to resolve the pulsation spectra for use in asteroseismological analyses. This paper reports on multisite...
Search for Small Trans-Neptunian Objects by the TAOS Project (2006)
Chen, W. P., Alcock, C., Axelrod, T., Bianco, F. B., Byun, Y. I., Chang, Y. H., ...
The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small...
Triggered Star Formation in OB Associations (2006)
Chen, W. P., Lee, H. T., Sanchawala, K.
We present causal and positional evidence of triggered star formation in bright-rimmed clouds in OB associations, e.g., Ori OB1, and Lac OB1, by photoionization. The triggering process is seen also...
Multi-color Shallow Decay and Chromatic Breaks in the GRB 050319 Optical Afterglow (2006)
Huang, K. Y., Urata, Y., Kuo, P. H., Ip, W. H., Ioka, K., Aoki, T., ...
Multi-wavelength B, V, R, I observations of the optical afterglow of GRB 050319 were performed by the 1.05-m telescope at Kiso Observatory and the 1.0-m telescope at Lulin Observatory from 1.31 hours...
The Origin of Low- and Intermediate-Mass Stars in OB Associations (2005)
We present our diagnosis of the role massive stars play in the formation of low- and intermediate-mass stars in OB associations. In the bright-rimmed and comet-shaped clouds in both the Ori OB1 and...
Contact Binary Variables as X-ray Sources (2005)
Chen, W. P., Sanchawala, Kaushar, Chiou, M. C.
We present cross-identification of archived X-ray point sources with W UMa variable stars found in the All-Sky Automated Survey (ASAS). In a surveyed sky area of 300 square degrees of ASAS, 36 W UMa...
Triggered Star Formation in the Orion Bright-Rimmed Clouds (2005)
Lee, Hsu-Tai, Chen, W. P., Zhang, Zhi-Wei, Hu, Jing-Yao
We have developed an empirical and effective set of criteria, based on the 2MASS colors, to select candidate classical T Tauri stars (CTTS). This provides a useful tool to study the young stellar...
Metallicity and HI Column Density Properties of Damped Lyman-$\alpha$ Systems (2005)
Hou, J. L., Shu, C. G., Shen, S. Y., Chang, R. X., Chen, W. P., Fu, C. Q.
Based on the disk galaxy formation theory within the framework of standard LCDM hierarchical picture, we selected modelled DLAs, according to their observational criterion, by Monte Carlo simulation...
Morphology of Galactic Open Clusters (2004)
Chen, W. P., Chen, C. W., Shu, C. G.
We analyzed the shapes of Galactic open clusters by the star counting technique with the 2MASS star catalog database. Morphological parameters such as the ellipticity and size have been derived via...
Physical properties of DLA metallicity and neutral hydrogen column density (2003)
Hou, J. L., Shu, C. G., Chen, W. P., Chang, R. X., Fu, C. Q.
We investigate some basic properties of Damped Lyman alpha systems based on the Semi-Analytical model of disk galaxy formation theory. We derive the DLA metallicity, column density, number density,...
You, J. H., Liu, D. B., Chen, W. P., Chen, L., Zhang, S. N.
When thermal relativistic electrons with isotropic distribution of velocities move in a gas region, or impinge upon the surface of a cloud that consists of a dense gas or doped dusts, the Cerenkov...
H α + [N II] observations of the HII regions in M81 (2003)
Lin, W. P., Zhou, X., Burstein, D., Windhorst, R. A., Chen, J. S., Chen, W. P., ...
Intermediate-band surface photometry of the edge-on galaxy NGC 4565 (2002)
Wu, H., Burstein, D., Deng, Z. G., Zhou, X., Shang, Z. H., Zheng, Z. Y., ...
We present a deep, 42.79 hr image of the nearby, edge-on galaxy NGC 4565 in the Beijing-Arizona-Taipei-Connecticut 6660 Angstrom band using the large-format CCD system on the 0.6 m Schmidt telescope...
Production of Glucose Isomerase by Streptomyces flavogriseus†
Chen, W. P., Anderson, A. W., Han, Y. W.
A microorganism that produces glucose isomerase was isolated from soil and identified as a strain of Streptomyces flavogriseus. The organism produced a large quantity of glucose isomerase when grown...
Extraction of glucose isomerase from Streptomyces flavogriseus.
Chen, W P, Anderson, A W, Han, Y W
Cationic detergent (cetyltrimethylammonium bromide or cetylpyridinium chloride) treatment extracted almost the same amount of glucose isomerase from cells of Streptomyces flavogriseus as mechanical...
Glucose isomerase (EC 5.3.1.5) produced from Streptomyces flavogriseus was purified by fractionation with (NH4)2SO4 and chromatography on diethylaminoethyl (DEAE)-cellulose and DEAE-Sephadex A-50...
Production of Glucose Isomerase by Streptomyces flavogriseus†
Chen, W. P., Anderson, A. W., Han, Y. W.
A microorganism that produces glucose isomerase was isolated from soil and identified as a strain of Streptomyces flavogriseus. The organism produced a large quantity of glucose isomerase when grown...
Extraction of glucose isomerase from Streptomyces flavogriseus.
Chen, W P, Anderson, A W, Han, Y W
Cationic detergent (cetyltrimethylammonium bromide or cetylpyridinium chloride) treatment extracted almost the same amount of glucose isomerase from cells of Streptomyces flavogriseus as mechanical...
Glucose isomerase (EC 5.3.1.5) produced from Streptomyces flavogriseus was purified by fractionation with (NH4)2SO4 and chromatography on diethylaminoethyl (DEAE)-cellulose and DEAE-Sephadex A-50...
Fu, L. W., Yang, L. Y., Chen, W. P., Lin, C. Y.
Aims Neoral is a new microemulsion form of cyclosporin. Pharmacokinetic reports in children are scarce. Therefore, we performed a pharmacokinetic study between Cyclosporin A (CsA) capsules and...