Status Report

Electromagnetic signals from planetary collisions

By SpaceRef Editor
August 21, 2003
Filed under , ,

Astrophysics, abstract

From: Bing Zhang <>
Date: Tue, 12 Aug 2003 20:58:21 GMT (12kb)

Electromagnetic signals from planetary collisions

Bing Zhang,
Steinn Sigurdsson (Penn State University)

Comments: 5 pages, emulateapj, accepted for publication in ApJ Letters

Planet-planet collisions are expected during the early stages of the
formation of extra-solar planets, and are also possible in mature planetary
systems through secular planet-planet perturbations. We investigate the
electromagnetic signals accompanied with these planetary collisions and their
event rate, and explore the possibility of directly detecting such events. A
typical Earth-Jupiter collision would give rise to a prompt EUV-soft-X-ray
flash lasting for hours and a bright IR afterglow lasting for thousands of
years. It is suggested that with the current and forthcoming observational
technology and facilities, some of these collisional flashes or the
post-collision remnants could be discovered.

Full-text: PostScript, PDF, or Other formats

References and citations for this submission:

SLAC-SPIRES HEP (refers to ,
cited by, arXiv reformatted)

Links to:
/abs (/+), /0308,

SpaceRef staff editor.