SIMBAD references

2005ApJ...635L.169K - Astrophys. J., 635, L169-L172 (2005/December-3)

First optical images of circumstellar dust surrounding the debris disk candidate HD 32297.

KALAS P.

Abstract (from CDS):

Near-infrared imaging with the Hubble Space Telescope recently revealed a circumstellar dust disk around the A star HD 32297. Dust-scattered light is detected as far as 400 AU radius, and the linear morphology is consistent with a disk ∼10° away from an edge-on orientation. Here we present the first optical images that show the dust-scattered light morphology from 560 to 1680 AU radius. The position angle of the putative disk midplane diverges by ∼31°, and the color of dust scattering is most likely blue. We associate HD 32297 with a wall of interstellar gas and the enigmatic region south of the Taurus molecular cloud. We propose that the extreme asymmetries and blue disk color originate from a collision with a clump of interstellar material as HD 32297 moves southward, and discuss evidence consistent with an age of 30 Myr or younger.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - stars: individual (HD 32297)

Simbad objects: 21

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