In this paper, the author proposes that the departure from this simple scaling with mass arises because of a simple fact: the natal molecular cloud must first fragment into clumps, which must in turn fragment into stars.
McLean et al. observe a new sample of late-M and L dwarfs with the Very large Array to search for a relation between rotation rate and radio activity for ultracool dwarfs.
What happens when redshifted quasars masquerade as stars? How do astronomers isolate them from the stellar population?
Corroboration and confirmation is the name of this game. Making the same measurement twice — using a different technique — is a powerful way not only to confirm the initial result, but also the method used. This paper confirms a recent detection of a binary system using light-travel time techniques.
Neuhäuser et al. are searching for young Jovian planets orbiting stars in open clusters. What are the advantages of looking for planets in clusters?
Habitable exomoons appear all over science fiction, but could they exist in real life? Could we detect them if they did?