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Spitzer Space Telescope Observations of Var Her 04: Possible Detection of Dust Formation in a Superoutbursting Tremendous Outburst Amplitude Dwarf Nova

  • Authors: David R. Ciardi, Stefanie Wachter, D. W. Hoard, Steve B. Howell, and Gerard T. van Belle

Ciardi et al. 2006 The Astronomical Journal 132 1989.

  • Provider: AAS Journals

Caption: Fig. 3.

2MASS color‐color diagram for dwarf and giant stars. The dwarf stars occupy the lower branch and separate from the giant stars at a spectral type of M0. The 2MASS color photometry of the foreground star is marked by the circle. The 2MASS color of the TOAD WZ Sge (in quiescence) is marked by the filled square. The position of Var Her 04 (in quiescence) is also marked (open square), showing that it has similar colors to WZ Sge. Note that the JHK photometry for the quiescent Var Her 04 is from Price et al. (2004) and is not in the native 2MASS magnitudes. Diamonds mark the fiducial spectral types.

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