English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report the discovery of a circumstellar debris disk viewed nearly edge-onand associated with the young, K1 star BD+45$^{\circ}$598 using high-contrastimaging at 2.2$\mu$m obtained at the W.M.~Keck Observatory. We detect the diskin scattered light with a peak significance of $\sim$5$\sigma$ over threeepochs, and our best-fit model of the disk is an almost edge-on $\sim$70 AUring, with inclination angle $\sim$87$^\circ$. Using the NOEMA interferometerat the Plateau de Bure Observatory operating at 1.3mm, we find resolvedcontinuum emission aligned with the ring structure seen in the 2.2$\mu$mimages. We estimate a fractional infrared luminosity of $L_{IR}/L_{tot}$$\simeq6^{+2}_{-1}$$\times$$10^{-4}$, higher than that of the debris diskaround AU Mic. Several characteristics of BD+45$^{\circ}$598, such as itsgalactic space motion, placement in a color-magnitude diagram, and strongpresence of Lithium, are all consistent with its membership in the $\beta$Pictoris Moving Group with an age of 23$\pm$3 Myr. However, the galacticposition for BD+45$^{\circ}$598 is slightly discrepant from previously-knownmembers of the $\beta$ Pictoris Moving Group, possibly indicating an extensionof members of this moving group to distances of at least 70pc.BD+45$^{\circ}$598 appears to be an example from a population of youngcircumstellar debris systems associated with newly identified members of youngmoving groups that can be imaged in scattered light, key objects for mappingout the early evolution of planetary systems from $\sim$10-100 Myr. This targetwill also be ideal for northern-hemisphere, high-contrast imaging platforms tosearch for self-luminous, planetary mass companions residing in this system.

Discovery of an Edge-on Circumstellar Debris Disk Around BD+45$^{\circ}$598: a Newly Identifed Member of the $\beta$ Pictoris Moving Group