triple star system tagged posts

ALMA Observations show how Double, Triple, Quadruple and Quintuple Star Systems Form Simultaneously in a Molecular Cloud

Blue-green-yellow splashes of colour with red-white islands against a blue background.
False-color image of the massive star formation region G333.23–0.06 from data obtained with the ALMA radio observatory. North is to the left. The insets show regions in which Li et al. were able to detect multiple systems of protostars. The star symbols indicate the location of each newly forming stars. The image covers a region 0.62 by 0.78 light-years in size (which on the sky covers a mere 7.5 times 9.5 arc seconds). For comparison: If you look at the sky along an outstretched thumb, it spans a viewing angle of around two degrees. One degree corresponds to 3600 arc seconds.
© S. Li, MPIA / J. Neidel, MPIA Graphics Department / Data: ALMA Observatory

For humans, the chance of giving birth to multiples is less than 2%...

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Astrophysicists find Triple Star system with ‘Hot Jupiter’

Artist's interpretation of a hypothetical moon in orbit around a planet found in a tight-knit triple-star system. Credit: NASA/JPL-Caltech.

Artist’s interpretation of a hypothetical moon in orbit around a planet found in a tight-knit triple-star system. Credit: NASA/JPL-Caltech.

Crisp, clear images of a “hot Jupiter” system captured by a University of Notre Dame physicist were vital in determining that a newly found planet inhabits a 3-star system, a phenomenon documented only a few times before.

KELT-4Ab is a “hot Jupiter”, a gas giant that orbits extremely close to one of the stars in its solar system. While the KELT, or Kilodegree Extremely Little Telescope, detected the likely presence of the planet now called KELT-4Ab about 685 light years from Earth, Crepp was able to capture crisp, clear images of the system, discovering that the planet was in fact a member of a triple star system – one of only a few found to date.

The ...

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