Scientific American 2004 Article re Streams and HVCs

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

....and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

....and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

....and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

Craig Levine wrote:

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

...and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Craig Levine wrote:

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

...and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Craig Levine wrote:

On 31 Dec 2003 17:55:55 -0800, (PrisNo6)
wrote:

This month's Sci. Am. has an article with some decent graphics showing
current state of the art renditions for the following Milky Way
galactic structures:

1) Disk bubbles and chimneys and their relationship to high-velocity
high-latitude clouds
2) Sagittarius Dwarf Galaxy
3) Sagittarius stream
4) Magellanic stream
5) Complex C

Bart P. Wakker and Phillip Richter. Jan. 2004. Our Gowing, Breathing
Galaxy. Scientific American. 290(1):38-47.

- Kurt

...and it can be read online for free at http://www.sciam.com/ under

ASTRONOMY
Our Growing, Breathing Galaxy

Cheers,

- Craig

Craig Levine
Observing Chair
RASC, Halifax Centre
www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Sam Wormley wrote in message ...
Craig Levine wrote:
snip
On 31 Dec 2003 17:55:55 -0800, (PrisNo6)wrote:
snip
Bart P. Wakker and Phillip Richter. Jan. 2004. Our Growing, Breathing
Galaxy. Scientific American. 290(1):38-47.
...and it can be read online for free at snip www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Sam, Thanks for the link. The Sci. Am. article contains some more
useful links to Wakker's journal publications, particularly:

Highly Ionized High-Velocity Gas in the Vicinity of the Galaxy. K. R.
Sembach, B. P. Wakker, B. D. Savage, P. Richter, M. Meade, J. M.
Shull, E. B. Jenkins, G. Sonneborn and H. W. Moos in Astrophysical
Journal, Supplement Series, Vol. 146, No. 1, pages 165–208; May 2003.

at:

http://arxiv.org/PS_cache/astro-ph/pdf/0207/0207562.pdf

Table 1 (article pdf page 63) in that article describes a catalogue of
85 high-velocity high-latitude O VI features. Figures, referenced in
the article, plot the galactic positions of 85 of the high-velocity
features, e.g. -

http://arxiv.org/PS_cache/astro-ph/p...07562.f11a.png
http://arxiv.org/PS_cache/astro-ph/p...07562.f11b.png

In Figure 17, Wakker identifies 22 new high-velocity high-latitude
clouds (HVCs), described as "wings", that radiate in O VI, but not
hydrogen I:

http://arxiv.org/PS_cache/astro-ph/p...207562.f17.png

The "wing" gas clouds are marked in Table 1 with an "axe" symbol.

The above graphs add a little more meat to the excellent popular Sci.
Am. artist renditions.

- Kurt

Sam Wormley wrote in message ...
Craig Levine wrote:
snip
On 31 Dec 2003 17:55:55 -0800, (PrisNo6)wrote:
snip
Bart P. Wakker and Phillip Richter. Jan. 2004. Our Growing, Breathing
Galaxy. Scientific American. 290(1):38-47.
...and it can be read online for free at snip www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Sam, Thanks for the link. The Sci. Am. article contains some more
useful links to Wakker's journal publications, particularly:

Highly Ionized High-Velocity Gas in the Vicinity of the Galaxy. K. R.
Sembach, B. P. Wakker, B. D. Savage, P. Richter, M. Meade, J. M.
Shull, E. B. Jenkins, G. Sonneborn and H. W. Moos in Astrophysical
Journal, Supplement Series, Vol. 146, No. 1, pages 165–208; May 2003.

at:

http://arxiv.org/PS_cache/astro-ph/pdf/0207/0207562.pdf

Table 1 (article pdf page 63) in that article describes a catalogue of
85 high-velocity high-latitude O VI features. Figures, referenced in
the article, plot the galactic positions of 85 of the high-velocity
features, e.g. -

http://arxiv.org/PS_cache/astro-ph/p...07562.f11a.png
http://arxiv.org/PS_cache/astro-ph/p...07562.f11b.png

In Figure 17, Wakker identifies 22 new high-velocity high-latitude
clouds (HVCs), described as "wings", that radiate in O VI, but not
hydrogen I:

http://arxiv.org/PS_cache/astro-ph/p...207562.f17.png

The "wing" gas clouds are marked in Table 1 with an "axe" symbol.

The above graphs add a little more meat to the excellent popular Sci.
Am. artist renditions.

- Kurt

Sam Wormley wrote in message ...
Craig Levine wrote:
snip
On 31 Dec 2003 17:55:55 -0800, (PrisNo6)wrote:
snip
Bart P. Wakker and Phillip Richter. Jan. 2004. Our Growing, Breathing
Galaxy. Scientific American. 290(1):38-47.
...and it can be read online for free at snip www.halifax.rasc.ca

http://www.sciam.com/article.cfm?cha...3683414B7F0000

Sam, Thanks for the link. The Sci. Am. article contains some more
useful links to Wakker's journal publications, particularly:

Highly Ionized High-Velocity Gas in the Vicinity of the Galaxy. K. R.
Sembach, B. P. Wakker, B. D. Savage, P. Richter, M. Meade, J. M.
Shull, E. B. Jenkins, G. Sonneborn and H. W. Moos in Astrophysical
Journal, Supplement Series, Vol. 146, No. 1, pages 165–208; May 2003.

at:

http://arxiv.org/PS_cache/astro-ph/pdf/0207/0207562.pdf

Table 1 (article pdf page 63) in that article describes a catalogue of
85 high-velocity high-latitude O VI features. Figures, referenced in
the article, plot the galactic positions of 85 of the high-velocity
features, e.g. -

http://arxiv.org/PS_cache/astro-ph/p...07562.f11a.png
http://arxiv.org/PS_cache/astro-ph/p...07562.f11b.png

In Figure 17, Wakker identifies 22 new high-velocity high-latitude
clouds (HVCs), described as "wings", that radiate in O VI, but not
hydrogen I:

http://arxiv.org/PS_cache/astro-ph/p...207562.f17.png

The "wing" gas clouds are marked in Table 1 with an "axe" symbol.

The above graphs add a little more meat to the excellent popular Sci.
Am. artist renditions.

- Kurt