The REFLEX galaxy cluster survey. VIII. Spectroscopic observations and optical atlas (2009)
Guzzo, L., Schuecker, P., Boehringer, H., Collins, C. A., Ortiz-Gil, A., De Grandi, S., ...
We present the final data from the spectroscopic survey of the ROSAT-ESO Flux-Limited X-ray (REFLEX) catalog of galaxy clusters. The REFLEX survey covers 4.24 steradians (34% of the entire sky) below...
The REFLEX galaxy cluster survey - VIII. Spectroscopic observations and optical atlas (2009)
Guzzo, L., Schuecker, P., Böhringer, H., Collins, C. A., Ortiz-Gil, A., De Grandi, S., ...
The Evolution of Radio-Loud Quasars at High Redshift (2007)
I. M. Hook, P. A. Shaver, R. G. Mcmahon
Abstract. We present results from two surveys for radio-loud quasars. These are (1) a northern survey reaching S 5GHz = 0:2Jy and (2) the Parkes QSO survey reaching S 2:7GHz = 0:25Jy which together...
The Parkes quarter-Jansky flat-spectrum sample 3. Space density and evolution of QSOs (2004)
Wall, J. V., Jackson, C. A., Shaver, P. A., Hook, I. M., Kellermann, K. I.
We analyze the Parkes quarter-Jansky flat-spectrum sample of QSOs in terms of space density, including the redshift distribution, the radio luminosity function, and the evidence for a redshift...
Astronomy, Cosmology and Fundamental Physics : Proceedings of the ESO/CERN/ESA (2003)
Symposium ESO/CERN/ESA ( 2002 : Alemania), Shaver, P.A. (ed.), DiLella, L. (ed.), Giménez, A. (ed.)
Astronomy, Cosmology and Fundamental Physics : Proceedings of the ESO/CERN/ESA (2003)
Symposium ESO/CERN/ESA ( 2002 : Alemania), Shaver, P.A. (ed.), DiLella, L. (ed.), Giménez, A. (ed.)
3-540-40179-2
Hook, I. M., Shaver, P. A., Jackson, C. A., Wall, J. V., Kellermann, K. I.
We present optical spectra and redshift measurements for 178 flat-spectrum objects from the Parkes quarter-Jansky flat-spectrum sample. These spectra were obtained in order to compile a complete...
Discovery of Radio-loud Quasars with Redshifts above 4 from the PMN sample (2002)
Hook, I. M., McMahon, R. G., Shaver, P. A., Snellen, I. A. G.
We present results of a new, large survey for high-redshift radio-loud quasars, which targets quasars with z>4. The survey is based on the PMN and NVSS radio surveys, optically identified using...
The REFLEX Cluster Survey: Observing Strategy and First Results on Large-Scale Structure (1999)
Guzzo, L., Boehringer, H., Schuecker, P., Collins, C. A., Schindler, S., Neumann, D. M., ...
We give a general description of the optical observing strategy of the ROSAT-ESO Flux-Limited X-ray (REFLEX) cluster survey. This presently includes 460 clusters of galaxies selected from the ROSAT...
Booth, R., Nyman, L. A. A., Lemke, R., Shaver, P. A., Martinis, L., Dall'Oglio, G., ...
Published in: Astrophys. J. 513 (1999) 23 citations recorded in [Science Citation Index] Abstract: We report simultaneous observations at 1.2 and 2 mm, with a double channel photometer on the SEST...
Discovery of distant high luminosity infrared galaxies (1998)
Van Der Werf, Paul P., Clements, D. L., Shaver, P. A., Hawkins, M. R. S.
We have developed a method for selecting the most luminous galaxies detected by IRAS based on their extreme values of R, the ratio of 60 micron and B-band luminosity. These objects have optical...
Spectroscopy of the optical Einstein ring 0047-2808 (1998)
Warren, S. J., Iovino, A., Hewett, P. C., Shaver, P. A.
We present optical and near-infrared spectroscopic observations of the optical Einstein ring 0047-2808. We detect both [OIII] lines 4959, 5007 near 2.3 micron, confirming the redshift of the lensed...
The Redshift Cutoff and the Quasar Epoch (1998)
Shaver, P. A., Hook, I. M., Jackson, C. A., Wall, J. V., Kellermann, K. I.
We have obtained complete redshift information for a sample of 442 radio-loud quasars with flux densities S(11cm) >= 0.25Jy. These come from a completely-identified sample of 878 flat-spectrum radio...
The Evolution of Radio-loud Quasars at High Redshift (1998)
Hook, I. M., Shaver, P. A., McMahon, R. G.
We present results from two surveys for radio-loud quasars. These are (1) a northern survey reaching S(5GHz)=0.2Jy and (2) the Parkes QSO survey reaching S(2.7GHz)=0.25Jy, which together cover most...
Nyman, L. A. A., Lemke, R., Böhringer, H., Shaver, P. A., Martinis, L., Pizzo, L., ...
Abstract: An observing campaign was devoted to the search for the Sunyaev-Zeldovich (S-Z) effect towards X-ray ROSAT Clusters in the millimetric spectral domain. A double channel (1.2 and 2 {it mm})...
A spectroscopic study of UM 673 A and B - On the size of Lyman-alpha clouds (1992)
Smette, A, Surdej, Jean, Shaver, P A, Foltz, C B, Chaffee, F H, Weymann, R J, ...
The Ly-alpha forest spectra obtained for the A and B images of the gravitationally lensed high-redshift quasar UM 673 are investigated, and higher resolution data of the brightest (A) image are...
A Spectroscopic Study of UM673 A &B: on the size of Lyman- alpha Clouds (1991)
Smette, A, Surdej, Jean, Shaver, P A, Foltz, C B, Chaffee, F H, Weymann, R J, ...
Quasar Absorption Lines, Proceedings of the ESO Mini-Workshop held
Preliminary analysis of high-resolution spectra for UM 673 A & B (1990)
Smette, A, Surdej, Jean, Shaver, P A, Foltz, C B, Magain, Pierre
"Gravitational lensing"
Spectroscopy of the QSSOs Q0118-031 A, B, C (1986)
Robertson, J G, Shaver, P A, Surdej, Jean, Swings, Jean-Pierre
Optical spectroscopy of the three quasars Q0118-031A, B, C is presented. These objects which have emission redshifts of 12.445, 2.112 and 1.165 respectively, form a triplet on the plane of the sky...
Further investigation of the pair of quasars Q0107 - 025 A and B (1986)
Surdej, Jean, Arp, H, Gosset, Eric, Kruszewski, A, Robertson, J G, Shaver, P A, ...
Low and intermediate dispersion spectroscopy of Q0107 - 025 A and B obtained at ESO, AAT, and MMT provide evidence for spectral differences between these two quasars. A redshift difference of 0.004...
On the statistics of galactic H I clouds (1984)
Anantharamaiah, K.R., Radhakrishnan, V., Shaver, P.A.
The number density and random motions of interstellar H I clouds have been studied using an entirely novel method involving the comparison of the terminal velocities of H I absorption spectra in the...
Anomalous motions of H I clouds (1982)
Shaver, P.A., Radhakrishnan, V., Anantharamaiah, K.R., Retallack, D.S., Wamsteker, W., Danks, A.C.
In a comparison of H I absorption line velocities and radio recombination line velocities for 38 H II regions of known distance, it is found that the H I absorption extends beyond the recombination...
Theoretical intensities of low frequency recombination lines (1975)
The possibiliry of observable reconlbination lines below 200 MHz is shown to be greatest for the case of negative absorption in low-density gas in front of strong radio sources. The amplification of...