UA Science

By Glenn Schneider, John Wisniewski, and Carol Grady

Steward Astronomer Sees Mass Motions in a Stellar Disk

Glenn Schneider of UA, and a team of 14 astronomers including John Wisniewski of U. Oklahoma, and Carol Grady at the Goddard Space Flight Center have shown that the debris disk surrounding the young and nearby star AU Microscopii is being eroded by mass motions of huge blobs of outflowing material. Small particles from objects like comets and asteroids such as water and other volatiles are being pushed out of the system and will be depleted in only about 1.5 million years. Whatever planets the AU Mic system may have recently formed could therefore be devoid of water and thus potentially...

50th Anniversary of the Discovery of Optical Pulsations of the Crab Nebula Pulsar

The optical pulsations of the Crab Nebula Pulsar were discovered 50 years ago by Stewardites John Cocke, Mike Disney and Don Taylor using the Steward 36" telescope on Kitt Peak. On Jan 14  (the link is a blowup of the picture) we celebrate the anniversary, bringing John Cocke to Tucson to talk about what happened in 1969, and having Feryal Ozel give a more current perspective.

The talk is Monday, Jan. 14, at 7:30pm, Steward Observatory, Room N210, on campus.

For the public
For Public

Public events include our Monday Night Lecture Series, world-reknowned Astronomy Camp and Mt Lemmon Sky Center.

For Students

A good place to start if you want to become an undergrad major or grad student, or need to find our schedule of classes.

For Scientists
For Scientists

Find telescopes and instruments, telescope time applications, staff and mountain contacts, and faculty and staff scientific interests.