809 citations · 28.2k across the 927 of their papers we have counts for
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Helium and Hydrogen Line Ratios and The Stellar Content of Compact HII Regions
S. L. Lumsden, P. J. Puxley, M. G. Hoare +2
We present observations and models of the behaviour of the HI and HeI lines between 1.6 and 2.2um in a small sample of compact HII regions. As in our previous papers on planetary n…
XMM-Newton spectral analysis of the Pulsar Wind Nebula within the composite SNR G0.9+0.1
D. Porquet, A. Decourchelle, R. S. Warwick
We present a study of the composite supernova remnant G0.9+0.1 based on observations by XMM-Newton. The EPIC spectrum shows diffuse X-ray emission from the region corresponding to…
The detection of diffuse emission in HCG 16 with XMM-Newton
E. Belsole, L. Sauvageot, T. J. Ponman +1
We report results obtained from analysis of the XMM-Newton observation of the compact group of galaxies HCG 16. It is a peculiar system composed of 7 spirals, 6 of which are active…
X-ray lighthouses of the high-redshift Universe. Probing the most luminous z>4 Palomar Digital Sky Survey Quasars with Chandra
C. Vignali, W. N. Brandt, D. P. Schneider +2
We present the results from exploratory Chandra observations of nine high-z (z=4.1-4.5) optically selected quasars. These quasars, taken from the DPOSS, are among the optically mos…
Molecular gas freeze-out in the pre-stellar core L1689B
M. P. Redman, J. M. C. Rawlings, D. J. Nutter +2
C17O (J=2-1) observations have been carried out towards the pre-stellar core L1689B. By comparing the relative strengths of the hyperfine components of this line, the emission is s…
Sensitivity of the Auger Observatory to ultra high energy photon composition through inclined showers
M. Ave, J. A. Hinton, R. A. Vazquez +2
We report a calculation of the expected rate of inclined air showers induced by ultra high energy cosmic rays to be obtained by the Auger Southern Observatory assuming different ma…
First XMM-Newton results on the Pulsar Wind Nebula in the composite supernova remnant G0.9+0.1
D. Porquet, A. Decourchelle, R. S. Warwick
We report the results of the XMM-Newton observation of the Pulsar Wind Nebula (PWN) in the composite supernova remnant G0.9+0.1 located in the Galactic Center region. Thanks to the…
Subluminous Stars among the FAUST UV sources toward OPHIUCHUS
L. Formiggini, N. Brosch, E. Almoznino +2
We present results of an analysis of a UV image in the direction of Ophiuchus, obtained with the FAUST instrument. The image contains 228 UV sources. Most of these were identified…
Formation of Turbulent Cones in Accretion Disk Outflows and Application to Broad Line Regions of Active Galactic Nuclei
A. Y. Poludnenko, E. G. Blackman, A. Frank
We consider the stability of an accretion disk wind to cloud formation when subject to a central radiation force. For a vertical launch velocity profile that is Keplerian or flatte…