An 80-kpc Lyman-alpha halo around a high redshift type-2 QSO (2008)
Smith, Daniel J. B., Jarvis, Matt J., Simpson, Chris, Martinez-Sansigre, Alejo
We announce the discovery of an extended emission line region associated with a high redshift type-2 QSO. The halo, which was discovered in our new wide-field narrow-band survey, resides at z = 2.85...
The UKIRT Infrared Deep Sky Survey and the search for the most distant quasars (2008)
Mortlock, Daniel J., Patel, Mitesh, Warren, Stephen J., Venemans, Bram P., McMahon, Richard G., Hewett, Paul, ...
The UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) has the necessary combination of filters (Y, J, H and K), depth (Y ~ 6.4 quasars. The Third Data Release (DR3) included ~1000 deg^2...
The Subaru/XMM-Newton Deep Survey (SXDS): III. X-Ray Data (2008)
Ueda, Yoshihiro, Watson, Michael G., Stewart, Ian M., Akiyama, Masayuki, Schwope, Axel D., Lamer, Georg, ...
We present the X-ray source catalog in the Subaru/XMM-Newton deep survey. A continuous area of 1.14 deg^2 centered at R.A. = 02h18m and Dec. = -05d is mapped by seven pointings with XMM-Newton...
Ouchi, Masami, Shimasaku, Kazuhiro, Akiyama, Masayuki, Simpson, Chris, Saito, Tomoki, Ueda, Yoshihiro, ...
We present luminosity functions (LFs) and various properties of Lya emitters (LAEs) at z=3.1, 3.7, and 5.7, in a 1 deg^2 sky of the Subaru/XMM-Newton Deep Survey (SXDS) Field. We obtain a photometric...
Evidence for a large fraction of Compton-thick quasars at high redshift (2007)
Martínez-Sansigre, Alejo, Rawlings, Steve, Bonfield, David G., Mateos, Silvia, Simpson, Chris, Watson, Mike, ...
Using mid-infrared and radio selection criteria, we pre-select a sample of candidate high-redshift type 2 quasars in the Subaru XMM-Newton Deep Field (SXDF). To filter out starburst contaminants, we...
A population of high-redshift type 2 quasars – I. Selection criteria and optical spectra (2006)
Martínez-Sansigre, Alejo, Rawlings, Steve, Lacy, Mark, Fadda, Dario, Jarvis, Matt J., Marleau, Francine R., ...
We discuss the relative merits of mid-infrared and X-ray selection of type 2 quasars. We describe the mid-infrared, near-infrared and radio selection criteria used to find a population of redshift...
Current performance and on-going improvements of the 8.2 m Subaru Telescope (2004)
Iye, Masanori, Karoji, Hiroshi, Ando, Hiroyasu, Kaifu, Norio, Kodaira, Keiichi, Aoki, Kentaro, ...
An overview of the current status of the 8.2m Subaru Telescope constructed and operated at Mauna Kea, Hawaii, by the National Astronomical Observatory of Japan is presented. The basic design concept...
Doing ethics: a universal technique in an accessibility context (2003)
Simpson, Chris, Nevile, Liddy, Burmeister, Oliver K.
Thinking ethically is difficult without a background in moral philosophy. Asking people to embrace ethics without offering practical explanation of the efficacy of so doing, is a thankless task. A...
Doing ethics: a universal technique in an accessibility context (2003)
Simpson, Chris, Nevile, Liddy, Burmeister, Oliver K.
Thinking ethically is difficult without a background in moral philosophy. Asking people to embrace ethics without offering practical explanation of the efficacy of so doing, is a thankless task. A...
Doing ethics: a universal technique in an accessibility context (2003)
Simpson, Chris, Nevile, Liddy, Burmeister, Oliver K.
Thinking ethically is difficult without a background in moral philosophy. Asking people to embrace ethics without offering practical explanation of the efficacy of so doing, is a thankless task. A...
It Takes More Than Ethics (2001)
Recent positive developments in ethical outlook are explored, initially within the Information and Communication Technology (ICT) profession, and then broadened into other disciplines and the...
It Takes More Than Ethics (2001)
Recent positive developments in ethical outlook are explored, initially within the Information and Communication Technology (ICT) profession, and then broadened into other disciplines and the...
Wang, Zhongxiang, Chakrabarty, Deepto, Roche, Paul, Charles, Philip A., Kuulkers, Erik, Shahbaz, Tariq, ...
We present multiband optical/IR photometry of V4580 Sgr, the optical counterpart of the accretion-powered millisecond pulsar SAX J1808.4-3658, taken during the 1998 X-ray outburst of the system. The...
Wang, Zhongxiang, Chakrabarty, Deepto, Roche, Paul, Charles, Philip A., Kuulkers, Erik, Shahbaz, Tariq, ...
We present multiband optical/IR photometry of V4580 Sgr, the optical counterpart of the accretion-powered millisecond pulsar SAX J1808.4-3658, taken during the 1998 X-ray outburst of the system. The...
Wang, Zhongxiang, Chakrabarty, Deepto, Roche, Paul, Charles, Philip A., Kuulkers, Erik, Shahbaz, Tariq, ...
We present multiband optical/IR photometry of V4580 Sgr, the optical counterpart of the accretion-powered millisecond pulsar SAX J1808.4-3658, taken during the 1998 X-ray outburst of the system. The...