A Survey of Velocity Features in Perseus Michelle Borkin Senior Thesis Presentation May 12, 2006

A Survey of Velocity Features in Perseus Visualize 12 CO data cube in 3D Slicer Mark high velocity points in 3D space, and export to astronomical software Identify outflows and calculate statistics

Star (and Planet) Formation As We Understand It Galaxy Star Cluster Molecular Cloud Complex Star-Forming “Globule” Extrasolar System Disk + Jet

Stanke, McCaughrean & Zinnecker, 1999 What’s an “HH knot”? HH knots far from source mark the ends of bipolar “jets” or “outflows”

“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

V LSR = 3.4 km/s 3.4 km/s

V LSR = 3.6 km/s

V LSR = 3.8 km/s

V LSR = 4.0 km/s

V LSR = 4.2 km/s

V LSR = 4.4 km/s

V LSR = 4.6 km/s

V LSR = 4.8 km/s

V LSR = 5.0 km/s

V LSR = 5.2 km/s

V LSR = 5.4 km/s

V LSR = 5.6 km/s

V LSR = 5.8 km/s

V LSR = 6.0 km/s

V LSR = 6.2 km/s

V LSR = 6.4 km/s

V LSR = 6.6 km/s

V LSR = 6.8 km/s

V LSR = 7.0 km/s

V LSR = 7.2 km/s

V LSR = 7.4 km/s

V LSR = 7.6 km/s

V LSR = 7.8 km/s

V LSR = 8.0 km/s

V LSR = 8.2 km/s

V LSR = 8.4 km/s

V LSR = 8.6 km/s

V LSR = 8.8 km/s 8.8 km/s

Barnard’s Perseus COMPLETE/FCRAO W( 13 CO)

“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

Spectral Line Outflow Mapping Usually… In Extreme Cases…

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.

3D Slicer

A Survey of Velocity Features in Perseus Visualize 12 CO data cube in 3D Slicer Mark high velocity points in 3D space, and export to astronomical software Identify outflows and calculate statistics

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

Outflow Identification Red Shifted points Blue Shifted points HH Objects SCF points IRAS Sources Known Outflow Sources c2d Sources

B5 RA DEC

B5 Velocity DEC

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)

B5 Results Summation of all the spectra in Region 1 All outflows previously detected outflows Gaussian fit High velocity gas High velocity gas from detected outflows

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.

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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