'Sdss quasars' presentation slideshows

LAMSOT ????? ??? ??? ??? ??? 2005.04.27

441 views • 30 slides

Luminous obscured quasars in the HELLAS2XMM survey: the Spitzer perspective

Luminous obscured quasars in the HELLAS2XMM survey: the Spitzer perspective. Cristian Vignali Dipartimento di Astronomia, Universita`degli Studi di Bologna F. Pozzi , A. Comastri, C. Gruppioni, L. Pozzetti, M. Mignoli, C. Lari, G. Zamorani, M. Brusa & The HELLAS2XMM collaboration.

335 views • 21 slides

Observing Dark Energy

Observing Dark Energy. SDSS, DES, WFMOS teams. Understanding Dark Energy. We can make progress on questions: Is DE just a cosmological constant (w(z)=-1)? (Make better observations and push to higher z) Is DE a new form of matter (with negative effective pressure) or a breakdown of GR?

298 views • 21 slides