Abstract
We present the first high resolution observations of the ring nebula around the galactic LBV AG Car obtained through broad band B, V, R, I filters with the STScI coronograph on the ESO 2.2 m. telescope. Highly anisotropic continuum emission in all these bands is clearly detected, in the shape of a bipolar structure elongated along the NE- SW direction extending from a few arcsecs from the star out to ≤ 15 arcsecs corresponding to a projected linear distance of ≤ 0.5 parsecs, with a surface brightness in the range 17.9–19.4 mag/arcsec2. Its essentially neutral color with respect to the star (Δ(V-I) = -0.07) suggests that the observed radiation is starlight scattered by dust grains of diameter > 1/μ.
Based on data collected at the European Southern Observatory, La Silla, Chile.
On leave from the Observatory of Padova, Italy.
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© 1989 Kluwer Academic Publishers
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Nota, A., Paresce, F. (1989). High Resolution Coronographic Imaging of AG Carinae. In: Davidson, K., Moffat, A.F.J., Lamers, H.J.G.L.M. (eds) Physics of Luminous Blue Variables. Astrophysics and Space Science Library, vol 157. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1031-7_19
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DOI: https://doi.org/10.1007/978-94-009-1031-7_19
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