The Big Sibling of AU Mic: A Cold Dust-rich Debris Disk around CP-72 2713 in the beta Pic Moving Group
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00539660" target="_blank" >RIV/67985815:_____/20:00539660 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3847/1538-3881/ab8f98" target="_blank" >https://doi.org/10.3847/1538-3881/ab8f98</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-3881/ab8f98" target="_blank" >10.3847/1538-3881/ab8f98</a>
Alternative languages
Result language
angličtina
Original language name
The Big Sibling of AU Mic: A Cold Dust-rich Debris Disk around CP-72 2713 in the beta Pic Moving Group
Original language description
Analyzing Spitzer and Herschel archival measurements we identified a debris disk around the young K7/M0 star CP-72 2713. The system belongs to the 24 Myr old beta Pic moving group. Our new 1.33 mm continuum observation, obtained with the Atacama Large Millimeter/submillimeter Array 7 m array, revealed an extended dust disk with a peak radius of 140 au, probably tracing the location of the planetesimal belt in the system. The disk is outstandingly large compared to known spatially resolved debris disks and protoplanetary disks around stars of comparable masses. The dynamical excitation of the belt at this radius is found to be reconcilable with planetary stirring, while self-stirring by large planetesimals embedded in the belt can work only if these bodies form very rapidly, e.g., via pebble concentration. By analyzing the spectral energy distribution, we derived a characteristic dust temperature of 43 K and a fractional luminosity of 1.1 x 10(-3). The latter value is prominently high, we know of only four other similarly dust-rich Kuiper Belt analogs within 40 pc of the Sun.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
—
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomical Journal
ISSN
1538-3881
e-ISSN
—
Volume of the periodical
159
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
288
UT code for WoS article
000539303100001
EID of the result in the Scopus database
2-s2.0-85086860782