New dispersive elements providing relative high resolution (R=2200) have been recently incorporated in the near infrared spectrograph LIRIS. These elements are...
Novel gyrochronology tests with wide-separation binaries
Gyrochronology is the technique that uses rotation periods to derive stellar ages via age-rotation relations. If properly calibrated, its potential applications...
Novel Opportunities for EW Breaking from Low-Scale SUSY Breaking
In supersymmetric scenarios with a low scale of SUSY breaking [sqrt{F}=O(TeV)] the conventional MSSM Higgs sector can be substantially modified, mainly because...
November 2007 Chandra Observations of X-Ray Transients in M31
As part of our ongoing Chandra/HST M31 transient program we report on two active sources recently detected in two Chandra ACIS observations. Source 1 We present...
Now You See It and Now You Don't! Comet LINEAR Blows Up in Full View of the JKT
When I was assigned the time in La Palma on the JKT, I gave thanks for my extraordinary luck that the observations were scheduled exactly at the perihelion of...
NRAO 150: A Recently Identified Quasar Revealing Extreme Non-Ballistic Motion
NRAO 150 -- a compact and bright radio to mm source showing core/jet structure-- has been recently identified as a quasar at redshift 1.52 through a near-IR...
NRT: observing the transient Universe with the world's largest robotic telescope
The New Robotic Telescope (NRT) is an international initiative to build a 4-metre robotic telescope. With a primary mirror consisting of 18 segmented hexagonal...