a survey of velocity features in perseus michelle borkin senior thesis presentation may 12, 2006
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![Page 1: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/1.jpg)
A Survey of Velocity Features in Perseus
Michelle BorkinSenior Thesis Presentation
May 12, 2006
![Page 2: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/2.jpg)
A Survey of Velocity Features in Perseus
Visualize 12CO data cube in 3D Slicer
Mark high velocity points in 3D space, and export to astronomical software
Identify outflows and calculate statistics
![Page 3: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/3.jpg)
Star (and Planet) Formation As We Understand It
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Galaxy
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Star Cluster
Molecular Cloud Complex
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Star-Forming “Globule”
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Extrasolar SystemDisk + Jet
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Stanke, McCaughrean & Zinnecker, 1999
What’s an “HH knot”?HH knots far from sourcemark the ends of bipolar
“jets” or “outflows”
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“Giant” Outflows
H. Arce’s Thesis 2001
Greyscale shows ambient 1000 ptcl/cc gas
Red shows 100 ptcl/cc gas moving away from us
Blue shows 100 ptcl/cc gas moving toward us
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VLSR = 3.4 km/s
3.4 km/s
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VLSR = 3.6 km/s
![Page 8: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/8.jpg)
VLSR = 3.8 km/s
![Page 9: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/9.jpg)
VLSR = 4.0 km/s
![Page 10: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/10.jpg)
VLSR = 4.2 km/s
![Page 11: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/11.jpg)
VLSR = 4.4 km/s
![Page 12: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/12.jpg)
VLSR = 4.6 km/s
![Page 13: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/13.jpg)
VLSR = 4.8 km/s
![Page 14: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/14.jpg)
VLSR = 5.0 km/s
![Page 15: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/15.jpg)
VLSR = 5.2 km/s
![Page 16: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/16.jpg)
VLSR = 5.4 km/s
![Page 17: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/17.jpg)
VLSR = 5.6 km/s
![Page 18: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/18.jpg)
VLSR = 5.8 km/s
![Page 19: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/19.jpg)
VLSR = 6.0 km/s
![Page 20: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/20.jpg)
VLSR = 6.2 km/s
![Page 21: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/21.jpg)
VLSR = 6.4 km/s
![Page 22: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/22.jpg)
VLSR = 6.6 km/s
![Page 23: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/23.jpg)
VLSR = 6.8 km/s
![Page 24: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/24.jpg)
VLSR = 7.0 km/s
![Page 25: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/25.jpg)
VLSR = 7.2 km/s
![Page 26: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/26.jpg)
VLSR = 7.4 km/s
![Page 27: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/27.jpg)
VLSR = 7.6 km/s
![Page 28: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/28.jpg)
VLSR = 7.8 km/s
![Page 29: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/29.jpg)
VLSR = 8.0 km/s
![Page 30: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/30.jpg)
VLSR = 8.2 km/s
![Page 31: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/31.jpg)
VLSR = 8.4 km/s
![Page 32: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/32.jpg)
VLSR = 8.6 km/s
![Page 33: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/33.jpg)
VLSR = 8.8 km/s
8.8 km/s
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Barnard’s Perseus
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COMPLETE/FCRAO W(13CO)
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“Giant” Outflows
H. Arce’s Thesis 2001
Greyscale shows ambient 1000 ptcl/cc gas
Red shows 100 ptcl/cc gas moving away from us
Blue shows 100 ptcl/cc gas moving toward us
![Page 36: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/36.jpg)
Spectral Line Outflow Mapping
Usually…
In Extreme Cases… 1.0
0.8
0.6
0.4
0.2
0.0 120100806040200
1.0
0.8
0.6
0.4
0.2
0.0120100806040200 120 100 80 60 40200
1.0
0.8
0.6
0.4
0.2
0.0120 100806040200
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Molecular Cloud
Outflows
Note: not drawn to scale.
Star forming core
~ 1pc
HH knots
Outflow lobes
Circumstellar envelope
Circumstellar disc
Protostar
HH jet
Based on H. Arce Thesis 2001.
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3D Slicer
![Page 39: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/39.jpg)
3D Slicer
![Page 40: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/40.jpg)
A Survey of Velocity Features in Perseus
Visualize 12CO data cube in 3D Slicer
Mark high velocity points in 3D space, and export to astronomical software
Identify outflows and calculate statistics
![Page 41: A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006](https://reader036.vdocuments.us/reader036/viewer/2022081519/56649d3a5503460f94a1515e/html5/thumbnails/41.jpg)
Outflow Identification
Red Shifted points
Blue Shifted points
HH Objects
SCF points
IRAS Sources
Known Outflow Sources
I
II
III IV V
VI
New outflows Known outflows or outflow regions
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Outflow Identification
Red Shifted points
Blue Shifted points
HH Objects
SCF points IRAS Sources
Known Outflow Sourcesc2d Sources
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B5
RA
DE
C
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B5
Velocity
DE
C
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B5 Results
Summation of all the spectra in Region 1
Summation of the spectra associated with outflows
Summation of all the spectra associated with previously known outflows
Gaussian fit
Region 1 (B5)
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B5 ResultsSummation of all the spectra in Region 1
All outflows
previously detected outflows
Gaussian fit
High velocity gasHigh velocity gas from detected outflows
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Results and Conclusions
• 216 high velocity points were identified across Perseus
• In the three regions cataloged, 20 new outflows were found
• 1 new shell was found spanning Regions 5 and 6 (across L1448 and NGC 1333)
• Known outflows do not account for all of the observed high velocity gas.
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Future Research
Red Shifted points
Blue Shifted points
HH Objects
SCF points
IRAS Sources
Known Outflow Sources
Finish cataloging
Calculate outflow statistics
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Questions?
For more information, go to:
http://www.cfa.harvard.edu/COMPLETE/
http://www.cfa.harvard.edu/COMPLETE/astromed/
http://iic.harvard.edu