Zobrazeno 1 - 10
of 34
pro vyhledávání: '"W. M. Lane"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 375:1528-1536
We report the GMRT detection of HI 21cm absorption from the $z \sim 3.39$ damped Lyman-$\alpha$ absorber (DLA) towards PKS 0201+113, the highest redshift at which 21cm absorption has been detected in a DLA. The absorption is spread over $\sim 115$ km
Autor:
K. P. Stewart, W. M. Lane, T. J. W. Lazio, Paul S. Ray, P. C. Crane, Brian C. Hicks, Namir E. Kassim, A. S. Cohen
Publikováno v:
Planetary and Space Science. 52:1343-1349
We present an overview of the low-frequency array (LOFAR) that will open a window on one of the last and most poorly explored regions of the electromagnetic spectrum. LOFAR will be a large (baselines up to 400 km), low-frequency ( ν ∼ 10 – 240 M
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 345:1255-1265
We describe new Chandra spectroscopy data of the cluster which harbors the prototypical "head tail" radio galaxy 3C 129 and the weaker radio galaxy 3C 129.1. We combined the Chandra data with Very Large Array (VLA) radio data taken at 0.33, 5, and 8
Autor:
James J. Condon, Namir E. Kassim, W. M. Lane, T. J. W. Lazio, H. J. A. Röttgering, A. S. Cohen, A. Zanichelli, Mark Birkinshaw, R. J. Wilman, Marguerite Pierre, Philip Best, Richard A. Perley, W. D. Cotton
Publikováno v:
New Astronomy Reviews. 47:379-384
High resolution, low frequency observations are very efficient for surveying radio galaxies because of: (1) the wide field of view; and (2) the bias toward steep spectrum (lobe dominated) emission. Here I present preliminary results from two ongoing
Publikováno v:
The Astronomical Journal. 123:2985-2989
We present a new wide-field map of the radio galaxy 3C 129 and its companion galaxy 3C 129.1 at lambda=90 cm. We see a distinct steep-spectrum feature near the head of 3C 129, extending in a direction perpendicular to the radio tails. We propose that
Autor:
A.S. Cohen, W. M. Lane, Tracy E. Clarke, N. E. Kassim, J. F. Helmboldt, T. J. W. Lazio, S. van Velzen, W. D. Cotton
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 440, 1, pp. 327-338
Monthly Notices of the Royal Astronomical Society, 440, 327-338
Monthly Notices of the Royal Astronomical Society, 440, 327-338
We present the results of a recent re-reduction of the data from the Very Large Array (VLA) Low-frequency Sky Survey (VLSS). We used the VLSS catalog as a sky model to correct the ionospheric distortions in the data and create a new set of sky maps a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c6d373067f2e7561ae7bf33e04928e3
http://arxiv.org/abs/1404.0694
http://arxiv.org/abs/1404.0694
Autor:
A. G. de Bruyn, W. M. Lane, Sara L. Ellison, F. Briggs, Emmanuel Momjian, Nissim Kanekar, Emma V. Ryan-Weber, Alain Smette, Jason X. Prochaska, T. Delafosse, Jayaram N. Chengalur, J. Grave, D. Jacobsen
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 438, 2131-2166. Oxford University Press
We report results from a programme aimed at investigating the temperature of neutral gas in high-redshift damped Lyman-$\alpha$ absorbers (DLAs). This involved (1) HI 21cm absorption studies of a large DLA sample, (2) VLBI studies to measure the low-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e68c71ba127b3adfe7a09b4b931e5cf
https://research.rug.nl/en/publications/3593701a-d325-4b31-bf65-a91e1ade848c
https://research.rug.nl/en/publications/3593701a-d325-4b31-bf65-a91e1ade848c
Autor:
Alain Smette, Jacqueline Bergeron, W. M. Lane, Eric M. Monier, Sandhya M. Rao, D. A. Turnshek, Daniel Nestor
Publikováno v:
The Astrophysical Journal. 553:288-298
New optical and infrared observations along the sight-line toward the quasar OI 363 (0738+313) are presented and discussed. Excluding systems which lack confirming UV spectroscopic observations of the actual Lyman alpha line, this sight-line presentl
Autor:
Scott D. Hyman, Tracy Clarke, W. D. Cotton, Emil Polisensky, W. M. Lane, Namir E. Kassim, E. Cleland, Simona Giacintucci, Dale A. Frail
Publikováno v:
The Astrophysical Journal. 832:60
We report on a search for radio transients at 340 MHz with the Jansky Very Large Array (VLA) Low band Ionospheric and Transient Experiment (VLITE). Between 2015 July 29 and 2015 September 27, operating in commensal mode, VLITE imaged approximately 28
Publikováno v:
The Astronomical Journal. 116:26-30
We report the discovery of two low redshift HI 21cm absorbers, one at z = 0.2212 towards the z_{em} = 0.630 quasar OI 363 (B0738+313), and the other at z = 0.3127 towards PKS B1127-145 (z_{em} = 1.187). Both were found during a survey of MgII selecte