Bars in Starbursts and AGNs -- A Quantitative Reexamination (2009)
Hao, Lei, Jogee, Shardha, Barazza, Fabio D., Marinova, Irina, Shen, Juntai
Galactic bars are the most important driver of secular evolution in galaxies. They can efficiently drive gas into the central kiloparsec of galaxies, thus feed circumnuclear starbursts, and possibly...
Hao, Lei, Wu, Yanling, Charmandaris, V., Spoon, H. W. W., Bernard-Salas, J., Devost, D., ...
We present an analysis of the mid-infrared emission lines for a sample of 12 low-metallicity blue compact dwarf (BCD) galaxies based on high-resolution observations obtained with Infrared...
Hao, Lei, Wu, Yanling, Charmandaris, V., Spoon, H. W. W., Bernard-Salas, J., Devost, D., ...
We present an analysis of the mid-infrared emission lines for a sample of 12 low metallicity Blue Compact Dwarf (BCD) galaxies based on high resolution observations obtained with Infrared...
Hao, Lei; Department Of Hematology, Xingioa Hospital, Third Military Medical University, Chongging, People's Republic Of China, Zhang, Cheng; Department Of Hematology, Xingioa Hospital, Third Military Medical University, Chongging, People's Republic Of China, Chen, Xing-hua; Department Of Hematology, Xingioa Hospital, Third Military Medical University, Chongging, People's Republic Of China; Xhchen888@yahoo.com.cn, Zou, Zhong-min; Department Of Chemical Defense And Toxicology, Third Military Medical University, Chongging, People's Republic Of China, Zhang, Xi; Department Of Hematology, Xingioa Hospital, Third Military Medical University, Chongging, People's Republic Of China, Kong, Pei-yan; Department Of Hematology, Xingioa Hospital, Third Military Medical University, Chongging, People's Republic Of China, ...
Aim To explore immunological properties of human umbilical cord blood-derived stromal cells (hUCBDSC) and their effect on xenogeneic immune cells in vitro. Methods Immunological phenotype of freshly...
High-speed navigators: Using more than what meets the eye (2008)
Francesca C. Fortenbaugh, John C. Hicks, Lei Hao, Kathleen A. Turano
This study employed a novel method to dissociate the use of external visual information and internal spatial representations in human navigation. Using a goal-directed walking task and...
A Secure Monitoring Model Based on the Clark-Wilson Integrity Policies (2008)
Qing Si-han, Wen Hong-zi, Lei Hao, Wang Jian
Abstract: The redundant data in log files and the delay for detecting abnormal trails are the inherent problems existing in the traditional secure monitoring subsystem of a computer system. In this...
Elemental Abundances of Blue Compact Dwarfs from mid-IR Spectroscopy with Spitzer (2007)
Wu, Yanling, Bernard-Salas, J., Charmandaris, V., Lebouteiller, V., Hao, Lei, Brandl, B. R., ...
We present a study of elemental abundances in a sample of thirteen Blue Compact Dwarf (BCD) galaxies, using the $\sim$10--37$\mu$m high resolution spectra obtained with Spitzer/IRS. We derive the...
Spitzer Spectra of a 10 mJy Galaxy Sample and the Star Formation Rate in the Local Universe (2007)
Houck, J. R., Weedman, D. W., Floc'h, E. Le, Hao, Lei
A complete flux-limited sample of 50 galaxies is presented having f_{\nu}(24um) > 10mJy, chosen from a survey with the Multiband Imaging Photometer on Spitzer (MIPS) of 8.2 deg^{2} within the NOAO...
Spitzer Observations of Powerful Radio Sources (2007)
Cleary, Kieran, Lawrence, Charles R., Marshall, Jason A., Hao, Lei, Meier, David
We have measured the mid-infrared radiation from an orientation-unbiased sample of powerful 3C RR galaxies and quasars using the IRS and MIPS instruments aboard the Spitzer Space Telescope. We fit...
The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs (2006)
Hao, Lei, Weedman, D. W., Spoon, H. W. W., Marshall, J. A., Levenson, N. A., Elitzur, M., ...
A sample of 196 AGNs and ULIRGs observed by the Infrared Spectrograph (IRS) on Spitzer is analyzed to study the distribution of the strength of the 9.7 micron silicate feature. Average spectra are...
Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features (2006)
Weedman, D. W., Soifer, B. T., Hao, Lei, Higdon, J. L., Higdon, S. J. U., Houck, J. R., ...
Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f$_{\nu}$(24 micron) > 0.75 mJy. Sources...
Zakamska, Nadia L., Strauss, Michael A., Krolik, Julian H., Ridgway, Susan E., Schmidt, Gary D., Smith, Paul S., ...
Type II quasars are luminous Active Galactic Nuclei whose centers are obscured by large amounts of gas and dust. In this paper we present 3-band HST images of nine type II quasars with redshifts 0.2...
Hosts of Type II Quasars: an HST Study (2006)
Zakamska, Nadia L., Strauss, Michael A., Krolik, Julian H., Ridgway, Susan E., Schmidt, Gary D., Smith, Paul S., ...
Type II quasars are luminous Active Galactic Nuclei whose centers are obscured by large amounts of gas and dust. In this contribution we present 3-band HST images of nine type II quasars with...
Mid Infrared Properties of Low Metallicity Blue Compact Dwarf Galaxies From Spitzer/IRS (2005)
Wu, Yanling, Charmandaris, V., Hao, Lei, Brandl, B. R., Bernard-Salas, J., Spoon, H. W. W., ...
We present a {\em Spitzer}-based mid-infrared study of a large sample of Blue Compact Dwarf galaxies (BCD) using the Infrared Spectrograph (IRS), including the first mid-IR spectrum of IZw18, the...
Mid-Infrared Spectra of Classical AGN Observed with the Spitzer Space Telescope (2005)
Weedman, D. W., Hao, Lei, Higdon, S. J. U., Devost, D., Wu, Yanling, Charmandaris, V., ...
Full low resolution (65
The UV, Optical, and IR Properties of SDSS Sources Detected by GALEX (2005)
Agueros, Marcel A., Ivezic, Zeljko, Covey, Kevin R., Obric, Mirela, Hao, Lei, Walkowicz, Lucianne M., ...
We discuss the UV, optical, and IR properties of the SDSS sources detected by GALEX as part of its All-sky Imaging Survey Early Release Observations. Virtually all of the GALEX sources in the overlap...
The Detection of Silicate Emission from Quasars at 10 and 18 Microns (2005)
Hao, Lei, Spoon, H. W. W., Sloan, G. C., Marshall, J. A., Armus, L., ...
We report the spectroscopic detection of silicate emission at 10 and 18 microns in five PG quasars, the first detection of these two features in galaxies outside the Local Group. This finding is...
Active Galactic Nuclei in the Sloan Digital Sky Survey: II. Emission-Line Luminosity Function (2005)
Hao, Lei, Strauss, Michael A., Fan, Xiaohui, Tremonti, Christy A., Schlegel, David J., Heckman, Timothy M., ...
The emission line luminosity function of active galactic nuclei (AGN) is measured from about 3000 AGN included in the main galaxy sample of the Sloan Digital Sky Survey within a redshift range of $0
Active Galactic Nuclei in the Sloan Digital Sky Survey: I. Sample Selection (2005)
Hao, Lei, Strauss, Michael A., Tremonti, Christy A., Schlegel, David J., Heckman, Timothy M., Kauffmann, Guinevere, ...
We have compiled a large sample of low-redshift active galactic nuclei (AGN) identified via their emission line characteristics from the spectroscopic data of the Sloan Digital Sky Survey. Since...
Active galactic nuclei in the sloan digital sky survey. I. Sample selection (2005)
Hao, Lei, Strauss, Michael A., Tremonti, Christy A., Schlegel, David J., Heckman, Timothy M., Kauffmann, Guinevere, ...
Active galactic nuclei in the sloan digital sky survey. II. Emission-line luminosity function (2005)
Hao, Lei, Strauss, Michael A., Fan, Xiaohui, Tremonti, Christy A., Schlegel, David J., Heckman, Timothy M., ...
Active Galactic Nuclei in the Sloan Digital Sky Survey. I. Sample Selection (2005)
Hao, Lei, Strauss, Michael A., Tremonti, Christy A., Schlegel, David J., Heckman, Timothy M., Kauffmann, Guinevere, ...
Strateva, Iskra V., Strauss, Michael A., Hao, Lei, Schlegel, David J., Hall, Pat B., Gunn, James E., ...
Evolution of the Cluster Correlation Function (2003)
Bahcall, Neta A., Hao, Lei, Bode, Paul, Dong, Feng
We study the evolution of the cluster correlation function and its richness-dependence from z = 0 to z = 3 using large-scale cosmological simulations. A standard flat LCDM model with \Omega_m = 0.3...
Discovery of Eight New Extremely Metal--Poor Galaxies in the Sloan Digital Sky Survey (2003)
Kniazev, Alexei Y., Grebel, Eva K., Hao, Lei, Strauss, Michael A., Brinkmann, Jonathan, Fukugita, Masataka
We report the discovery of eight new extremely metal-poor galaxies (XMPGs; 12+log(O/H) < 7.65) and the recovery of four previously known or suspected XMPGs (IZw18, HS0822+3542, HS0837+4717 and...
Double-Peaked Low-Ionization Emission Lines in Active Galactic Nuclei (2003)
Strateva, Iskra V., Strauss, Michael A., Hao, Lei, Schlegel, David J.
We present a new sample of 116 double-peaked Balmer line Active Galactic Nuclei (AGN) selected from the Sloan Digital Sky Survey. Double-peaked emission lines are believed to originate in the...
The Richness-Dependent Cluster Correlation Function: Early SDSS Data (2003)
Bahcall, Neta A., Dong, Feng, Hao, Lei, Bode, Paul, Annis, Jim, Gunn, James E., ...
The cluster correlation function and its richness dependence are determined from 1108 clusters of galaxies -- the largest sample of clusters studied so far -- found in 379 deg^2 of Sloan Digital Sky...
Double-Peaked Broad Emission Lines and the Geometry of Accretion in AGNs (2003)
Strateva, Iskra, Strauss, Michael A., Hao, Lei
Although accretion disks are a theoretically appealing model for the geometry and dynamics of the gas in the vicinity of black holes in Active Galactic Nuclei (AGN), there is little direct...
The first data release of the sloan digital sky survey (2003)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
Double-peaked low-ionization emission lines in active galactic nuclei (2003)
Strateva, Iskra V., Strauss, Michael A., Hao, Lei, Schlegel, David J., Hall, Pat B., Gunn, James E., ...
The first data release of the sloan digital sky survey (2003)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
Discovery of eight new extremely metal poor galaxies in the Sloan Digital Sky Survey (2003)
Kniazev, Alexei Y., Grebel, Eva K., Hao, Lei, Strauss, Michael A., Brinkmann, Jonathan, Fukugita, Masataka
We report the discovery of eight new extremely metal poor galaxies [XMPGs; 12+log(O/H) lt;7.65] and the recovery of four previously known or suspected XMPGs (I Zw 18, HS 0822+3542, HS 0837+4717, and...
The first data release of the Sloan Digital Sky Survey (2003)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...
The first data release of the Sloan Digital Sky Survey (2003)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...
Permanent magnet AC motor full speed range operation using hybrid sliding mode observer / (2002)
Thesis (Ph. D.)--Texas A & M University, 2002.
Gamma-Ray Burst in a Molecular Cloud: Destruction of Dust and H2, and Emergent Spectrum (2001)
A gamma ray burst with strong optical-UV emission occuring in a molecular cloud will photodissociate H2, photoionize H2, H, and He, and destroy dust grains. We model these processes, including...