'Quasars' diaporamas de présentation

What To Do With 1,000,000 Quasars

What To Do With 1,000,000 Quasars. Gordon Richards Drexel University.

586 views • 51 slides

Clustering and Environment of Quasars at High Redshift

Clustering and Environment of Quasars at High Redshift. Michael A. Strauss, Princeton University. Joe Hennawi. Jenny Greene. Xin Liu. Nic Ross. The Clustering of High-Redshift Objects. The clustering of dark matter with time (and thus redshift) is well-understood.

475 views • 36 slides

436 views • 35 slides

Surveys for the first quasars z>6.4 Steve Warren Imperial College London UKIDSS Survey Scientist

Surveys for the first quasars z>6.4 Steve Warren Imperial College London UKIDSS Survey Scientist. Conclusions. Decline in quasar space density accelerates beyond z=6 UKIDSS and PanSTARRS offer the best chance of finding z=7 quasars over next 2-3 years

466 views • 32 slides

Lyman Break Galaxies in Large Quasar Groups at z~1

Lyman Break Galaxies in Large Quasar Groups at z~1.

391 views • 32 slides

Dust and molecular gas in the most distant quasars

Dust and molecular gas in the most distant quasars. Ran Wang Department of Astronomy, Peking University, China Supervisor: Chris Carilli ( NRAO)

423 views • 32 slides

????????????????

????????????????. ??? ?????????? wuxb@bac.pku.edu.cn. Content. Introduction: quasars in large sky surveys Photometric redshifts of quasars in SDSS How to find high-z quasars Discussion: BATC & LAMOST. 1. Introduction. ???? quasars ?.

526 views • 31 slides

Jets polarization and spectral properties of 18 gamma-ray quasars

Yu.N.Vetukhnovskay, V.E. Yakimov , D.Gabuzda. Jets polarization and spectral properties of 18 gamma-ray quasars. Observations: VLBA ,frequencies 5 and 15 GHz, two circular polarizations. Calibration: AIPS usual tasks.

410 views • 27 slides

S. Chaty (University Paris 7 / CEA Saclay) Moriond Very High Energy Phenomena

384 views • 25 slides

LBC Bootes Y band Survey: Searching for the first z~7 Quasars

LBC Bootes Y band Survey: Searching for the first z~7 Quasars. Xiaohui Fan University of Arizona. AZ: Fan , Bian, Cool, Eisenstein, Liebert, Jiang, Yang, Weiner, Zabludoff INAF: Maiolino , Fiore, Fontana, Giallongo, Pentericcii LBTB: Jester , Kurk, Rix, Walter

346 views • 23 slides

The Highest-Redshift Quasars and the End of Cosmic Dark Ages

The Highest-Redshift Quasars and the End of Cosmic Dark Ages. Xiaohui Fan Collaborators: Strauss,Schneider,Richards, Hennawi,Gunn,Becker,White,Rix,Pentericci, Walter, Carilli,Cox,Bertoldi,Omont,Brandt, Vestergaard, Jiang, Diamond-Stanic, et al. SDSS collaboration. End of cosmic dark ages.

343 views • 21 slides

UV to Mid-IR SEDs of Low Redshift Quasars

266 views • 18 slides

Marianne Vestergaard University of Arizona

A Step Toward Constraining Supermassive Black-Hole Growth Quasar Black Hole Mass Distributions and Mass Functions. Marianne Vestergaard University of Arizona.

248 views • 17 slides

The highest redshift radio quasars

157 views • 15 slides

Cosmological Evolution of the Duty Cycle of Quasars

Cosmological Evolution of the Duty Cycle of Quasars. Yan-Mei Chen Collaborator: Jian-Min Wang, Fan Zhang Institute of High Energy Physics, CAS, China 21 Oct 2006. Outline. Motivation The definition of duty cycle Black hole mass function Results. Background. Continuity equation:

258 views • 11 slides

Multi-frequency radio observations of BAL quasar 1045+352

Multi-frequency radio observations of BAL quasar 1045+352. Magdalena Kunert-Bajraszewska. Toru? Centre for Astronomy, N. Copernicus University. Features of BAL quasars. very broad, blue-shifted absorption lines arising from:

230 views • 10 slides

A Survey for Large Separation Lensing Among 9100 FIRST Quasars

A Survey for Large Separation Lensing Among 9100 FIRST Quasars. 1,2. 2. 4. 1. 3. 1- School of Physics and Astronomy and Wise Observatory, Tel-Aviv University, Tel-Aviv 69978, Israel 2-Max-Planck-Institut f?r Astronomie, K ? nigstuhl 17, D-69117 Heidelberg, Germany

116 views • 4 slides

93 views • 3 slides

Prospects for observing quasar jets with the Space Interferometry Mission

Prospects for observing quasar jets with the Space Interferometry Mission. Ann E. Wehrle Space Science Institute, La Canada Flintridge, CA, and Boulder, CO. Introduction

116 views • 1 slides

A Multicolor CCD Survey for Quasars z > 3 Nikhil Revankar, Dr. Julia Kennefick, Shelly Bursick

A Multicolor CCD Survey for Quasars z > 3 Nikhil Revankar, Dr. Julia Kennefick, Shelly Bursick University of Arkansas, Arkansas Center for Space and Planetary Sciences Cornell University, Department of Mathematics. 1. 3. 4. What are quasars and why should we study them?.

113 views • 1 slides