Andrew R. Marble

PC1643+4631A,B: The Lyman-Alpha Forest at the Edge of Coherence (2008)

Casey, Caitlin M., Impey, Christopher D., Petry, Catherine E., Marble, Andrew R., Dave, Romeel

This is the first measurement and detection of coherence in the intergalactic medium (IGM) at substantially high redshift (z~3.8) and on large physical scales (~2.5 h^-1 Mpc). We perform the...

The Flux Auto- and Cross-Correlation of the Lyman-alpha Forest. I. Spectroscopy of QSO Pairs with Arcminute Separations and Similar Redshifts (2008)

Marble, Andrew R., Eriksen, Kristoffer A., Impey, Chris D., Bai, Lei, Miller, Lance

The Lyman-alpha forest has opened a new redshift regime for cosmological investigation. At z > 2 it provides a unique probe of cosmic geometry and an independent constraint on dark energy that is not...

The Flux Auto- and Cross-Correlation of the Lyman-alpha Forest. II. Modelling Anisotropies with Cosmological Hydrodynamic Simulations (2008)

Marble, Andrew R., Eriksen, Kristoffer A., Impey, Chris D., Oppenheimer, Benjamin D., Dave, Romeel

The isotropy of the Lyman-alpha forest in real-space uniquely provides a measurement of cosmic geometry at z > 2. The angular diameter distance for which the correlation function along the line of...

An HST/WFPC2 Snapshot Survey of 2MASS-Selected Red QSOs (2003)

Marble, Andrew R., Hines, Dean C., Schmidt, Gary D., Smith, Paul S., Surace, Jason A., Armus, Lee, ...

Using simple infrared color selection, 2MASS has found a large number of red, previously unidentified, radio-quiet QSOs. Although missed by UV/optical surveys, the 2MASS QSOs have K-band luminosities...