The dense environment of neutron stars makes them an excellent target for probing dark
matter interactions with the Standard Model. We study neutron star heating from capture of …

Dark matter can capture in neutron stars from scattering off ultrarelativistic electrons. We
present a method to calculate the capture rate on degenerate targets with ultrarelativistic …

Extremely large telescopes will be constructed in the near future, and new radiotelescopes
will operate at considerably higher radio frequencies; both features create significantly …

Optical surfaces can be accurately figured by computer controlled optical surfacing (CCOS)
that uses well characterized sub-diameter polishing tools driven by numerically controlled …

We present a novel simulation technique that offers efficient mass fabrication strategies for
2m class hexagonal mirror segments of extremely large telescopes. As the first of two …

We present an analysis of the diffraction effects from a segmented aperture with a very large
number of segments—prototype of the next generation of extremely large telescopes. This …

We have made simultaneous and nearly simultaneous measurements of? _0, the outer
scale of turbulence, at the Palomar Observatory by using three techniques: angle-of-arrival …

Starting from the successful Keck telescope design, we construct and analyze the control
matrix for the active control system of the primary mirror of a generalized segmented-mirror …

All the projects of the Extremely Large Telescopes (ELTs) are based on segmented primary
mirrors. This idea, solving the problem of producing single mirrors having diameter larger …

A study is presented of a Mach–Zehnder interferometer for the measurement of phasing
errors of the type found in segmented telescopes. We show that with a pinhole much larger …