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Related Experiment Video

Updated: Jul 15, 2026

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

A mysterious dust clump in a disk around an evolved binary star system

M Jura¹, J Turner

¹Department of Physics and Astronomy, University of California, Los Angeles 90095-1562, USA. jura@clotho.astro.ucla.edu

|September 23, 1998

Summary

Planets may form around evolved stars, as evidenced by a Jupiter-mass dust clump discovered in the Red Rectangle nebula

Area of Science:

Astronomy
Astrophysics
Exoplanetary Science

Background:

Planetary formation around post-main-sequence stars is possible, as shown by planets orbiting pulsar PSR1257+12.
Evolved stars like HD44179 possess dust disks, offering potential sites for planet formation.
The Red Rectangle nebula is associated with an evolved star and an orbiting dust disk.

Purpose of the Study:

To investigate the dust disk associated with the Red Rectangle nebula using high-angular-resolution observations.
To determine the presence and characteristics of potential planet-forming material in the disk.

Main Methods:

Conducted millimetre and submillimetre wavelength observations.
Utilized high-angular-resolution imaging techniques.

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Main Results:

Detected a significant dust clump in the outer region of the Red Rectangle's dust disk.
The dust clump has an estimated mass comparable to Jupiter.
The clump's size exceeds that of our Solar System, located far beyond typical planet formation zones.

Conclusions:

The discovery suggests that planet formation might occur in unexpected locations around evolved stars.
The nature of the large, distant dust clump remains unclear and warrants further investigation.
This finding expands the understanding of potential environments for planetary system development.