2016A&A...586A..54C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.22CEST18:15:21

2016A&A...586A..54C - Astronomy and Astrophysics, volume 586A, 54-54 (2016/2-1)

Monte-Carlo radiative transfer simulation of the circumstellar disk of the Herbig Ae star HD 144432.

CHEN L., KREPLIN A., WEIGELT G., HOFMANN K.-H., SCHERTL D., MALBET F., MASSI F., PETROV R. and STEE Ph.

Abstract (from CDS):

Studies of pre-transitional disks, with a gap region between the inner near-infrared-emitting region and the outer disk, are important to improving our understanding of disk evolution and planet formation. Previous infrared interferometric observations have shown hints of a gap region in the protoplanetary disk around the Herbig Ae star HD 144432. We study the dust distribution around this star with two-dimensional radiative transfer modeling. We compare the model predictions obtained via the Monte-Carlo radiative transfer code RADMC-3D with infrared interferometric observations and the spectral energy distribution of HD 144432. The best-fit model that we found consists of an inner optically thin component at 0.21-0.32AU and an optically thick outer disk at 1.4-10AU. We also found an alternative model in which the inner sub-AU region consists of an optically thin and an optically thick component. Our modeling suggests an optically thin component exists in the inner sub-AU region, although an optically thick component may coexist in the same region. Our modeling also suggests a gap-like discontinuity in the disk of HD 144432.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - techniques: interferometric - protoplanetary disks - stars: pre-main sequence - stars: individual: HD 144432 - circumstellar matter

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 Ass Sco OB 2-2 * 15 43.6 -27 19           ~ 16 0
2 HD 142666 TT* 15 56 40.0222941557 -22 01 40.004849949 9.41 9.37 8.82 8.31 8.01 F0V_sh 202 0
3 * rho Sco SB* 15 56 53.0762391 -29 12 50.661185 2.84 3.66 3.86 3.97 4.17 B2IV-V 183 0
4 HD 144432 Ae* 16 06 57.9530266912 -27 43 09.758016578 8.47 8.53 8.19 7.82 7.53 A9/F0V 206 1

    Equat.    Gal    SGal    Ecl

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2019.10.22-18:15:21

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