Researchers discover rare star system that emits radio signals every 8 minutes (curtin.edu.au)

41 pointsby giuliomagnifico4 hours ago14 comments

throwaway81523 3 minutes ago

Pulsars are usually faster than that I guess.

cartan 9 minutes ago

Nuke them before it's too late!

metalman 12 minutes ago

I didn't know that there was a whole slew of these red and white dwarfs orbiting other stars, which I think must make it extra unlikely for there to be habitable planets in the same system, the process of one star capturing another is going to realy wreck havock with any original planets, and any surviving lifeform to get past the am radio phase of technological development

thats! GPM J071507−114153, "the pulse on your dial" brought to by astrophyisal phenominon, every 8 min, for eterinty

vegnus an hour ago

Radio... Live transmission?

ceejayoz an hour ago

I mean, yes. Every star does.

https://en.wikipedia.org/wiki/Solar_radio_emission

https://en.wikipedia.org/wiki/Radio_telescope

vegnus an hour ago

Sorry I was making a dumb joke about a song

y-curious an hour ago

You responded to a “joke” but hey this is cool new info for me

ErroneousBosh 5 minutes ago

If you have satellite TV you already have a solar radiotelescope.

Measure the voltage on the AGC line in the tuner and you'll see a peak as the sun passes the azimuth of the dish. That's it picking up 10GHz solar radiation, and turning its gain down to compensate for the background noise.

AstroNutt 18 minutes ago

I got it! :) There is no Joy in this HN Division.

martijnvds an hour ago

The signal? "Replace smoke alarm battery"

bombcar an hour ago

Then it would be periodic but so long between signals that it would be nearly impossible to determine where it was coming from.

gibolt 28 minutes ago

Maybe it is a musical instrument smoke alarm

xqcgrek2 an hour ago

apparently its a class of objects https://en.wikipedia.org/wiki/Long_period_radio_transient