home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!spool.mu.edu!uwm.edu!csd4.csd.uwm.edu!gwc
- From: gwc@csd4.csd.uwm.edu (Greg F Walz Chojnacki)
- Newsgroups: sci.astro
- Subject: Re: Is the Milky Way a Barred Spiral?
- Date: 4 Jan 1993 02:03:10 GMT
- Organization: University of Wisconsin - Milwaukee
- Lines: 21
- Message-ID: <1i85suINN1s2@uwm.edu>
- References: <1993Jan3.210002.19066@ee.ubc.ca>
- Reply-To: gwc@csd4.csd.uwm.edu
- NNTP-Posting-Host: 129.89.7.4
- Originator: gwc@csd4.csd.uwm.edu
-
- From article <1993Jan3.210002.19066@ee.ubc.ca>, by davem@ee.ubc.ca (Dave Michelson):
- > Not too long ago (but I don't remember where :-(, I read that some astronomers
- > had convinced themselves that our Galaxy is actually a barred spiral. I haven't
- > seen any references to it since, though. Does anyone else recall seeing such a
- > report or care to comment?
- >
- > Previously, the evidence of spiral arm tracers such as O and B stars and
- > HII regions had suggested that our galaxy possesses a rather tightly wound
- > spiral structure...
-
- Leo Blitz (U of MD) and David Spergel (Princeton) reported in Jan. 90 (at
- the AAS meeting) that their analysis of the motion of hydrogen clouds and
- found that outer clouds move in nearly circular orbits in the outer regions,
- but more and more elliptically as one looked closer to the galaxy's center.
- Their interpretation is that there is indeed a bar.
-
- Sorry, I can't tell you where they published their results; I only heard
- their talk at the AAS meeting.
-
- Greg
-
-