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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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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

are needed to see this picture.

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

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

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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