#mdwarf — Public Fediverse posts

Re-post from MinCup past:
The non-detection of #perovskite in non-stars shows that it's there.

Cool red dwarf stars have deep absorption bands from TIO gas in their atmospheres. In yet cooler brown dwarfs those bands have disappeared: opaque perovsite dust has condensed, making the titanium invisible.

Spectra from Kesseli et al. (2017), images from Gabicca, LEAP group.

#MinCup25 #Astronomy #RedDwarf #BrownDwarf #L_Dwarf #MDwarf

Is there some simulated #Euclid data for stars somewhere? Wanna see if I can do #mdwarf parameters with the #spectra #Astrodon #stars #coolstars #esa