3-D Morphology of V723 Cas Nova Ejecta KeckII+LGSAO+OSIRIS
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3-D Morphology of V723 Cas Nova Ejecta KeckII+LGSAO+OSIRIS
Randy Campbell and Jim Lyke
Hα images from Classical Novae, ed. Bode and Evans, Ch 12, O’Brien and Bode
V723 Cas [CaVIII] 2.3214 µm
Lyke and Campbell, 2009, AJ, 138, pp 1090-1100
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R. D. Campbell and J. E. Lyke 2
DMScienceCamera
TTM
WFS
NGS
WavefrontController
IR transmissivedichroic
LGS
Offload to telescope
Offload focus to
telescope
Light fromTelescope
LGS AO
Sodium transmissive
dichroic
Lenslets
Tip/tilt
STRAP
LBWFS
Focus
Centroids
(Tip/tilt to Laser)
Pupil Orientation(Subaperture gains)
TSS x,y,z stage
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OSIRIS Overview P.I., James Larkin, UCLA
• Fixed grating, lenslet array IFS– R=3800– ZJHK (1-2.5 m)– 4 spatial scales: 20 mas, 35 mas, 50 mas, 100 mas
Detector
Lenslet Array
Collimator Optics Grating
Camera Optics
Focal Plane
Pupil Plane
AOFocus
ColdPupil
Filters
CollimatingSinglet
CameraSinglet
Reimaging Optics Lenslet Spectrograph
Light fromtelescope
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OSIRIS requires a Data Reduction Pipeline
Raw Data DRP
Extracted Data CubeExtracted Data Cube
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OsirisVol: Volume Rendering
Widget
Kn1, 2005sep13 data
[Al IX] 2.0443µm
[Si VI]
1.9630µm
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Continuum Subtraction
2.3”
1.8”
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Continuum Subtraction
2.3”
1.8”
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Nova System Cartoon
Roche Lobe filling secondary
Credit Dana Berry
• White Dwarf Primary
Accretion Disk
Hot spot
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0.1”
vr (km/sec)
λ (μm)
OSIRIS: Integral Field Spectrometer
[CaVIII] 2.3214 µm
2007 Sep 3
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Stepping Through Velocity Channels
[CaVIII] 2.3214 µm
2007 Sep 3
0.1”
λ µm
Vr (km/sec)
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[CaVIII] 2.3214 µm
2007 Sep 3
0.1”
Stepping Through Velocity Channels
0.1”
λ µm
Vr (km/sec)
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Spatial Rendering• Radial velocity dimension
– texp = tobserved - t0 (nova eruption)
– texp = 10 years
– rshell = vr texp – Convert km to AU
• Spatial dimension– Distance parallax = 3.8 ± 0.4 kpc– Convert lenslet scale, arcsec to AU
• Render cube in dimensions of AU
3000 AU
3000 AU
3000 AU
3000 AU
[Al IX] 2.0443 µm
2007sep3
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3-D Volume Display
27°
Position Angle
Rotation
[CaVIII] 2.3214 µm
2007 Sep 3
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3-D Volume Display
62°Viewing Inclination
Angle
Cube Dimensions:3300 AU / side
(dashed cube lines are background)
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3-D Volume Display
27°
Position Angle
Rotation
[CaVIII] 2.3214 µm
2007 Sep 3
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3-D Volume Display
-28°
Viewing Inclination
Angle
Cube Dimensions:3300 AU / side
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Conclusions
• Integral field spectroscopy + LGSAO yields:– High spatial resolution tuned to coronal emission features– Distance determination: 3.85 ± 0.23 kpc– Direct measure of the inclination: 62 ± 1.5°– Study of the 3-D morphology of V723 Cas ejecta
Lyke, J.E. and Campbell, R. D.,2009, AJ, 138, pp 1090-1100
V723 Cas [CaVIII] 2.3214 µm
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Thank YouCube Dimensions: 3300 AU / side
[CaVIII] 2.3214 µm
2007 Sep 3
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Extras
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QuickTime™ and aTIFF (Uncompressed) decompressor
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Expansion Parallax
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Comparison of [Ca VIII] and [Al IX]Cube Dimensions: 3300 AU / side
[CaVIII] 2.3214 µm
2007 Sep 3
[Al IX] 2.0443 µm
2007 Sep 3
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1D spectra
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Mosaic of Narrow Band Images
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Mosaic of Face-On Views
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Mosaic of Edge-On Views
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2D Spectra 2006
Br
[Al IX]
[Si VI]
[Ti VII]
unk
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V723 CassiopeiaeVery slow multi-peak photometric development
Evans, et al., 2003, AJ, 126, 1981, Figure 1