10 papers
A near-infrared survey for new low-mass members in Alpha Per
N. Lodieu, M. J. McCaughrean, D. Barrado y Navascues +2
We present a near-infrared (K'-band) survey of 0.7 square degree area in the Alpha Persei open cluster (age = 90 Myr, distance = 182 pc) carried out with the Omega-Prime camera on…
Galaxy Groups Associated with Gravitational Lenses and H_0 from B1608+656
Chris Fassnacht, Lori Lubin, John McKean +6
Compact groups of galaxies recently have been discovered in association with several strong gravitational lens systems. These groups provide additional convergence to the lensing p…
X-Ray Observations of the Most Massive DLS Shear-Selected Galaxy Clusters
John P. Hughes, Ian Dell'Antonio, Joseph Hennawi +7
We report on preliminary results of our X-ray survey of the most massive clusters currently identified from the Deep Lens Survey (DLS). The DLS cluster sample is selected based on…
Warm Molecular Hydrogen and Ionized Neon in the HH2 Outflow
B. Lefloch, J. Cernicharo, S. Cabrit +3
We report on spectro-imaging observations of the Herbig-Haro 2 outflow with the ISOCAM camera onboard the Infrared Space Observatory (ISO). The [Ne II}] 12.81 microns and [Ne III]1…
Cool stars in NGC 2547 and pre main sequence lithium depletion
R. D Jeffries, J. M. Oliveira, D. Barrado y Navascues +1
We present the results of a spectroscopic survey of X-ray selected, low-mass candidate members of the young open cluster NGC 2547. Using a combination of photometry, spectroscopic…
An HST/WFPC2 Snapshot Survey of 2MASS-Selected Red QSOs
Andrew R. Marble, Dean C. Hines, Gary D. Schmidt +5
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…