3-D Morphology of V723 Cas Nova Ejecta KeckII+LGSAO+OSIRIS Randy Campbell and Jim Lyke V723 Cas [CaVIII] 2.3214 µm Hα images from Classical Novae, ed. Bode and Evans, Ch 12, O’Brien and Bode

OSIRIS: Integral Field Spectrometer vr (km/sec) λ (μm) 0.1” [CaVIII] 2.3214 µm 2007 Sep 3 R. D. Campbell and J. E. Lyke

Stepping Through Velocity Channels 0.1” Vr (km/sec) [CaVIII] 2.3214 µm 2007 Sep 3 λ µm R. D. Campbell and J. E. Lyke

Stepping Through Velocity Channels 0.1” Vr (km/sec) 0.1” [CaVIII] 2.3214 µm 2007 Sep 3 λ µm R. D. Campbell and J. E. Lyke

3-D Volume Display 27° Position Angle Rotation [CaVIII] 2.3214 µm 2007 Sep 3 27° R. D. Campbell and J. E. Lyke

3-D Volume Display 62° Viewing Inclination Angle Cube Dimensions: 3300 AU / side Viewing Inclination Angle (dashed cube lines are background) R. D. Campbell and J. E. Lyke

3-D Volume Display 27° Position Angle Rotation [CaVIII] 2.3214 µm 2007 Sep 3 27° R. D. Campbell and J. E. Lyke

3-D Volume Display -28° Viewing Inclination Angle Cube Dimensions: 3300 AU / side R. D. Campbell and J. E. Lyke

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 R. D. Campbell and J. E. Lyke

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] Structure of [Si VI] vs. [Al IX] vs. Br gamma is different OSIRIS with Keck LGSAO gives an unprecedented capability for nova study high spatial resolution Well suited spectral resolution help reveal the physics inside Coronal lines exist in the ejecta Inhomogeneity: Density / temperature /radiaton/ Ionization/ optical depth? well defined ring Influence of binary R. D. Campbell and J. E. Lyke

Cube Dimensions: 3300 AU / side Thank You Cube Dimensions: 3300 AU / side [CaVIII] 2.3214 µm 2007 Sep 3 [Al IX] 2.0443 µm 2007 Sep 3 R. D. Campbell and J. E. Lyke

Backups R. D. Campbell and J. E. Lyke

1D spectra R. D. Campbell and J. E. Lyke

Continuum Subtraction 2.3” 1.8” Interested in emission features Remove continuum Sample continuum outside of features, extrapolate through features. Next: no contiuum, toggle back and forth R. D. Campbell and J. E. Lyke

Continuum Subtraction 2.3” 1.8” Next : isolating individual features R. D. Campbell and J. E. Lyke

Mosaic of Edge-On Views R. D. Campbell and J. E. Lyke

Mosaic of Face-On Views R. D. Campbell and J. E. Lyke

2D Spectra 2006 [Si VI] [Al IX] Br [Ti VII] unk R. D. Campbell and J. E. Lyke

Very slow multi-peak photometric development V723 Cassiopeiae Very slow multi-peak photometric development Evans, et al., 2003, AJ, 126, 1981, Figure 1 Brightened for ~100 days before max. Decline took 100s of days Many novae 1000-2000 km/s lines up to ~5000 km/s NIRSPEC spectra from August 2004 7 years before these observations—H and CO nb filters Longest orbital period of classical novae, likely a low mass WD with an evolved secondary We may want backup slides on 723 cas, light curves, spectral evolution, other info since some of the questions are likely to be on the nature of this object. We deemed the target a worthy challenge for OSIRIS and LGSAO on Keck II R. D. Campbell and J. E. Lyke

OSIRIS Overview – P.I., James Larkin Fixed grating, lenslet array IFU R=3800 ZJHK (1-2.5 mm) 4 spatial scales: 20 mas, 35 mas, 50 mas, 100 mas Detector Lenslet Array Collimator Optics Grating Camera Optics Focal Plane Pupil Plane AO Focus Cold Pupil Filters R. I. Collimating Singlet R.I. Camera Reimaging Optics Lenslet Spectrograph Light from telescope 3 parts: Re-imaging optics, lenslet, spectrograph Only the re-imaging optics and filters move. 88 Combinations of spatial and spectral coverage. R. D. Campbell and J. E. Lyke