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26 April 2024 |
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Article overview
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Direct Imaging and Spectroscopy of a Young Extrasolar Kuiper Belt in the Nearest OB Association | | Thayne Currie
; Carey M. Lisse
; Marc J. Kuchner
; Nikku Madhusudhan
; Scott J. Kenyon
; Christian Thalmann
; Joseph Carson
; John H. Debes
; | | Date: |
25 May 2015 | | Abstract: | We describe the discovery of a bright, young Kuiper belt-like debris disk
around HD 115600, a $sim$ 1.4--1.5 M$_mathrm{odot}$, $sim$ 15 Myr old
member of the Sco-Cen OB Association. Our H-band coronagraphy/integral field
spectroscopy from the extit{Gemini Planet Imager} shows the ring has a
(luminosity scaled) semi major axis of ($sim$ 22 AU) $sim$ 48 AU, similar to
the current Kuiper belt. The disk appears to have neutral scattering dust, is
eccentric (e $sim$ 0.1--0.2), and could be sculpted by analogues to the outer
solar system planets. Spectroscopy of the disk ansae reveal a slightly blue to
gray disk color, consistent with major Kuiper belt chemical constituents, where
water-ice is a very plausible dominant constituent. Besides being the first
object discovered with the next generation of extreme adaptive optics systems
(i.e. SCExAO, GPI, SPHERE), HD 115600’s debris ring and planetary system
provides a key reference point for the early evolution of the solar system, the
structure and composition of the Kuiper belt, and the interaction between
debris disks and planets. | | Source: | arXiv, 1505.6734 | | Services: | Forum | Review | PDF | Favorites | |
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