New searches for HI 21-cm in damped Lyman-alpha absorption systems (2009)
Curran, S. J., Tzanavaris, P., Darling, J. K., Whiting, M. T., Athreya, R., ...
We present the results of three separate searches for HI 21-cm absorption in a total of twelve damped Lyman-alpha absorption systems (DLAs) and sub-DLAs over the redshift range z = 0.86-3.37. We find...
Blind Wide Area Surveys: Where will we find redshifted atomic and molecular absorption? (2009)
Curran, S. J., Whiting, M. T., Webb, J. K.
Spectroscopy of redshifted radio absorption of atomic and molecular species provide excellent probes of the cold component of the gas in the early Universe which can be used to address many important...
HI 21-cm absorption and unified schemes of active galactic nuclei (2009)
HI 21-cm absorption has never been detected in z > 0.1 AGN in which the ultra-violet luminosity exceeds logL ~ 23 W/Hz. We explore the implications that this has for the consensus that it is the...
Where is the Cold Neutral Gas in the Hosts of High Redshift AGN? (2008)
Curran, S. J., Whiting, M. T., Webb, J. K.
Previous surveys for HI 21-cm absorption in z > 0.1 radio galaxies and quasars yield a 40% detection rate, which is attributed to unified schemes of active galactic nuclei (AGN). In this paradigm...
A Survey for Redshifted Molecular and Atomic Absorption Lines II (2008)
Curran, S. J., Whiting, M. T., Wiklind, T., Webb, J. K., Murphy, M. T., Purcell, C. R.
We present the results of a z>2.9 survey for HI 21-cm and molecular absorption in the hosts of radio quasars using the GMRT and the Tidbinbilla 70-m telescope. Previously published searches, which...
Webster And Francis, M. T. Whiting, P. J. Francis
Introduction Quasars from the Parkes Half-Jansky Flat Spectrum Sample (PHFS) (Drinkwater et al. 1997) are known to have a large dispersion in optical (B \Gamma K) colours (Webster et al. 1995,...
HI and OH absorption in the lensing galaxy of MG J0414+0534 (2007)
Curran, S. J., Darling, J., Bolatto, A. D., Whiting, M. T., Bignell, C., Webb, J. K.
We report the detection of \HI 21-cm absorption in the $z=0.96$ early-type lensing galaxy towards MG J0414+0534 with the Green Bank Telescope. The absorption, with total $N_{\rm HI}=1.6 \times...
A survey for redshifted molecular and atomic absorption lines I (2006)
Curran, S. J., Whiting, M. T., Murphy, M. T., Webb, J. K., Longmore, S. N., Pihlstroem, Y. M., ...
We are currently undertaking a large survey for redshifted atomic and molecular absorption ... only one clear and one tentative detection were obtained: HI absorption at z = 0.097 in PKS 1555-140 and...
Near-Infrared, Kilosecond Variability of the Wisps and Jet in the Crab Pulsar Wind Nebula (2005)
Melatos, A., Scheltus, D., Whiting, M. T., Eikenberry, S. S., Romani, R. W., Rigaut, F., ...
We present a time-lapse sequence of 20 near-infrared (J- and K'-band) snapshots of the central 20x20 arcsec of the Crab pulsar wind nebula, taken at subarcsecond resolution with the Hokupa'a/QUIRC...
Unravelling Active Galactic Nuclei (2000)
Webster, R. L., Drinkwater, M. J., Whiting, M. T., Francis, P. J., Masci, F. J.
A complete flat-spectrum radio-loud sample of AGN includes a significant fraction of Seyfert-like AGN including a NLS1. Analysis of their optical spectra suggests that the reddest continuum colours...