djacobs

The singing sky deeps

Radio astronomers! Listen to your data! Enlist a new neural network to find new meaning. Or at least make something interesting. PAPER data sounded like a mid-century modern apocalypse computer thinking manicly out loud. HERA data sounds even weirder. The sounds you hear are the cross correlations between HERA antennas at 117MHz. The signal is …

The singing sky deeps Read More »

Interplanetary Dude

Who owns the Moon? You stand in a temple on Vesta, in what direction is Mecca? Space technology can be used to launch intercontinental missiles and is therefor embargoed by all space-faring nations. Must everyone else invent it for themselves? How warped are people going to be out there? Really? Such are the imponderables to …

Interplanetary Dude Read More »

DIY 21cm

Observe the galactic 21cm hydrogen line yourself! Its easier than it ever was! You need a horn, some filters, an amplifier, and a software defined radio (SDR). The CHART* project puts students in the drivers seat to design and build. They have a quite nice design for a cardboard horn that does not require a …

DIY 21cm Read More »

New Job!

Starting this August I will be an Assistant Professor in the School of Earth and Space Exploration here at ASU! In my new role I will continue to do research in the LoCo Low frequency Cosmology group but also help the department continue to expand its cubesat and smallsat activities. In the near term this …

New Job! Read More »

HERA Prescott – Starting to look like a dish!

This weekend, in a burst of activity with lots of hard work by students from ASU and Embry Riddle, it almost looks like we have dish. We’ve added the primary support pipes and in a marathon session of angle grinding, cut all the mesh pieces.  Next time we’ll be putting the rest of the supports and installing the mesh! Thanks …

HERA Prescott – Starting to look like a dish! Read More »

HERA Prescott – Cement. lots of cement

Today progress on the Prescott HERA dish took the form of building the dish hub and rim.  The hub is where all the dish supports (25′ pvc pipes) meet. The hub is made using concentric “sonotube” concrete forms in which are embedded 3″ plastic pipes set in a radial pattern.  Its basically a giant tinker toy hub made of cement. At …

HERA Prescott – Cement. lots of cement Read More »