Both Kreidberg and Teachey stressed that there's no animosity between their teams.
This tug could come
from a moon or an undiscovered sibling planet, Kreidberg said.
Indeed, Kreidberg discussed her study with Teachey and Kipping extensively before submitting it.
Even the hint of a signal that they
saw doesn't hold up in the new analysis," Kreidberg said.
For example, Kreidberg and her colleagues used a different data-processing"pipeline"- one that
has proved its mettle repeatedly over the years, she said.
Indeed, the Hubble data are very tough to interpret, because the transit observations pushed the limits
of the Wide Field Camera 3 instrument, Kreidberg said.
Thanks to the new results,"we do have a pretty definitive answer-
that it doesn't exist," said Laura Kreidberg of the Harvard-Smithsonian Center for Astrophysics and the Harvard Society of Fellows,
the lead author of one of the new papers.