Chandra Digest: Mergers and Star Formation

Status Report From: Marshall Space Flight Center
Posted: Tuesday, April 23, 2002

New Chandra Results: The 2002 joint meeting of the American Physical Society & the High Energy Astrophysics Division (AAS) met in Albuquerque, New Mexico from April 20-23. New X-ray results from two colliding galaxies and a bustling star-forming region were released:

**Arp 220** When Worlds Collide: Chandra Observes Titanic Merger

NASA's Chandra X-ray Observatory has provided the best X-ray image yet of two Milky Way-like galaxies in the midst of a head-on collision. Since all galaxies - including our own - may have undergone mergers, this provides insight into how the Universe came to look as it does today.

**The Tarantula Nebula (30 Doradus)** A Drama of Star Formation and Evolution

The Tarantula, also known as 30 Doradus, is in one of the most active star-forming regions in our Local Group of galaxies. Massive stars are producing intense radiation and searing winds of multimillion-degree gas that carve out gigantic super-bubbles in the surrounding gas.

** Operations CXO Status Report (Friday 04/19/02)

Last week the observing schedule was interrupted due to high radiation associated with solar flare activity. The loads were halted on April 17 at 8:55am EDT through a ground command to execute the SI Safing SCS 107.

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