Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Chehade, Ben"'
Autor:
Findlay, Joseph R., Prochaska, J. Xavier, Hennawi, Joseph F., Fumagalli, Michele, Myers, Adam D., Bartle, Stephanie, Chehade, Ben, DiPompeo, Michael A., Shanks, Tom, Lau, Marie Wingyee, Rubin, Kate H. R.
The rare close projection of two quasars on the sky provides the opportunity to study the host galaxy environment of a foreground quasar in absorption against the continuum emission of a background quasar. For over a decade the "Quasars probing quasa
Externí odkaz:
http://arxiv.org/abs/1804.08624
Autor:
Fusillo, Nicola Pietro Gentile, Raddi, Roberto, Gänsicke, Boris T., Hermes, J. J., Pala, Anna F., Fuchs, Joshua T., Chehade, Ben, Metcalfe, Nigel, Shanks, Tom
The Sloan Digital Sky Survey (SDSS) has created a knowledge gap between the Northern and the Southern hemispheres which is very marked for white dwarfs: only $\simeq 15$% of the known white dwarfs are south of the equator. Here we make use of the VST
Externí odkaz:
http://arxiv.org/abs/1703.09714
Autor:
Chehade, Ben, Shanks, T., Findlay, J., Metcalfe, N., Sawangwit, U., Irwin, M., González-Solares, E., Fine, S., Drinkwater, M. J., Croom, S., Jurek, R. J., Parkinson, D., Bielby, R.
We present a new redshift survey, the 2dF Quasar Dark Energy Survey pilot (2QDESp), which consists of ${\approx}10000$ quasars from ${\approx}150$ deg$^2$ of the southern sky, based on VST-ATLAS imaging and 2dF/AAOmega spectroscopy. Combining our opt
Externí odkaz:
http://arxiv.org/abs/1603.04849
Autor:
Gentile Fusillo, Nicola Pietro, Raddi, Roberto, Gänsicke, Boris T., Hermes, J. J., Pala, Anna F., Fuchs, Joshua T., Chehade, Ben, Metcalfe, Nigel, Shanks, Tom
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Jul2017, Vol. 469 Issue 1, p621-629, 9p
Autor:
Chehade, Benjamin Thomas
Our aim in this thesis is to measure the dependence of quasar clustering with redshift and luminosity. We employ the two-point correlation function to measure the clustering of quasars and compare our results to models of quasar activity. Firstly, we
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.693504