Edward Gomez's blog

Low-energy interstellar radio communication

The design of an interstellar digital communication system at radio wavelengths and interstellar distances is considered, with relevance to starships and extraterrestrial civilizations (including SETI and METI). We approach the problem as a traditional end-do-end design based on models of the channel impairments introduced in the interstellar medium (ISM) and making use of the observations of pulsar astronomy.

Results of the 2014 Key Project Allocation

Last week the LCOGT Science Advisory Committee met, and, among other activities, reviewed the key project proposals. There were 11 proposals, and the total amount of time requested was more than 17,000 hours on the 1m network and about 1700 hours on the 2m network. Although the pool for key project proposals is about 6000 1m hours and 1200 2m hours, I wanted to allocate no more than half of these hours in the first call.

Cosmology with strong lens gravitational time delays

Strong lens gravitational time delays are a powerful way to measure cosmological parameters independent of and complementary with other more traditional techniques. After reviewing the basic principles of the method, I will illustrate recent and dramatic improvements in the measurement of the time-delays themselves, and in the modeling of the gravitational potential and line of sight effect, with specific examples, and present the resulting cosmological inference.

18th International Conference on Microlensing - Photo Galleries

Visibility Tool

This tool plots the visibility of a target on the LCOGT network in 2 different ways: seasonal visibility, and daily visibility.

Target coordinates

RA and Dec may be entered as a float value (nn.nnn) or hours, minutes, seconds (hh:mm:ss.ss).

Visibility test

18th International Conference on Microlensing - Reception Slideshow

18th International Conference on Microlensing - Excursion Slideshow

18th International Conference on Microlensing - Dinner Slideshow

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