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3-D Morphology of V723 Cas Nova Ejecta KeckII+LGSAO+OSIRIS

V723 Cas

Randy Campbell and Jim Lyke

Hα images from Classical Novae, ed. Bode and Evans, Ch 12, O’Brien and Bode

[CaVIII] 2.3214 µm

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0.1”

vr (km/sec)

λ (μm)

OSIRIS: Integral Field Spectrometer

[CaVIII] 2.3214 µm2007 Sep 3

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Stepping Through Velocity Channels

[CaVIII] 2.3214 µm2007 Sep 3

0.1”

λ µm

Vr (km/sec)

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[CaVIII] 2.3214 µm2007 Sep 3

0.1”

Stepping Through Velocity Channels

0.1”

λ µm

Vr (km/sec)

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3-D Volume Display

27°

Position Angle Rotation

[CaVIII] 2.3214 µm2007 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 µm2007 Sep 3

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3-D Volume Display

-28°Viewing Inclination

Angle

Cube Dimensions:3300 AU / side

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Comparison of [Ca VIII] and [Al IX]Cube Dimensions: 3300 AU / side

[CaVIII] 2.3214 µm2007 Sep 3

[Al IX] 2.0443 µm2007 Sep 3

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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– Detection of inhomogeneous shell

• Equatorial torus with polar globules in [Ca VIII] and most other emission features

• Prolate spheroid in [Al IX]

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Thank YouCube Dimensions: 3300 AU / side

[CaVIII] 2.3214 µm2007 Sep 3

[Al IX] 2.0443 µm2007 Sep 3

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Backups

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1D spectra

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Continuum Subtraction

2.3”

1.8”

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Continuum Subtraction

2.3”

1.8”

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Mosaic of Edge-On Views

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Mosaic of Face-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

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OSIRIS Overview – P.I., James Larkin • Fixed grating, lenslet array IFU

– 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 OpticsFocal

Plane

Pupil Plane

AOFocus

ColdPupil

Filters

R. I. CollimatingSinglet

R.I. CameraSinglet

Reimaging Optics Lenslet Spectrograph

Light fromtelescope