2019ApJ...879L..25I


Query : 2019ApJ...879L..25I

2019ApJ...879L..25I - Astrophys. J., 879, L25-L25 (2019/July-2)

Detection of continuum submillimeter emission associated with candidate protoplanets.

ISELLA A., BENISTY M., TEAGUE R., BAE J., KEPPLER M., FACCHINI S. and PEREZ L.

Abstract (from CDS):

We present the discovery of a spatially unresolved source of submillimeter continuum emission (λ = 855 µm) associated with a young planet, PDS 70 c, recently detected in Hα emission around the 5 Myr old T Tauri star PDS 70. We interpret the emission as originating from a dusty circumplanetary disk with a dust mass between 2 x 10–3 M and 4.2 x 10–3 M. Assuming a standard gas-to-dust ratio of 100, the ratio between the total mass of the circumplanetary disk and the mass of the central planet would be between 10–4 and 10–5. Furthermore, we report the discovery of another compact continuum source located 0.''074 ± 0.''013 southwest of a second known planet in this system, PDS 70 b, that was previously detected in near-infrared images. We speculate that the latter source might trace dust orbiting in proximity of the planet, but more sensitive observations are required to unveil its nature.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): instrumentation: high angular resolution - instrumentation: interferometers - planetary systems - planet-disk interactions - planets and satellites: formation - protoplanetary disks

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 CD-40 8434b Pl 14 08 10.1545137760 -41 23 52.576649494           ~ 141 0
2 CD-40 8434c Pl 14 08 10.1545137760 -41 23 52.576649494           ~ 97 0
3 CD-40 8434 TT* 14 08 10.1545500744 -41 23 52.573291080   13.42 12.18 11.71 10.506 K7IVe 258 0

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2022.11.30-19:06:20

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