A multi-wavelength interferometric study of the massive young stellar object IRAS 13481-6124
A multi-wavelength interferometric study of the massive young stellar object IRAS 13481-6124
复制标题
大质量年轻恒星 IRAS 13481-6124 的多波长干涉研究
DOI:
10.1051/0004-6361/201527502
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发表时间:
2016
影响因子:
6.5
通讯作者:
Boley P
中科院分区:
文献类型:
--
作者:
Boley P
We present new mid-infrared interferometric observations of the massive young stellar object IRAS 13481-6124, using VLTI/MIDI for spectrally-resolved, long-baseline measurements (projected baselines up to ~120 m) and GSO/T-ReCS for aperture-masking interferometry in five narrow-band filters (projected baselines of ~1.8−6.4 m) in the wavelength range of 7.5−13μm. We combine these measurements with previously-published interferometric observations in theKandNbands in order to assemble the largest collection of infrared interferometric observations for a massive YSO to date. Using a combination of geometric and radiative-transfer models, we confirm the detection at mid-infrared wavelengths of the disk previously inferred from near-infrared observations. We show that the outflow cavity is also detected at both near- and mid-infrared wavelengths, and in fact dominates the mid-infrared emission in terms of total flux. For the disk, we derive the inner radius (~1.8 mas or ~6.5 AU at 3.6 kpc), temperature at the inner rim (~1760 K), inclination (~48°) and position angle (~107°). We determine that the mass of the disk cannot be constrained without high-resolution observations in the (sub-)millimeter regime or observations of the disk kinematics, and could be anywhere from ~10-3to 20M⊙. Finally, we discuss the prospects of interpreting the spectral energy distributions of deeply-embedded massive YSOs, and warn against attempting to infer disk properties from the spectral energy distribution.
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影响因子:
6.5
作者:
P. Boley;H. Linz;R. Boekel;T. Henning;M. Feldt;L. Kaper;C. Leinert;A. Mueller;I. Pascucci;M. Robberto;B. Stecklum;L. Waters;H. Zinnecker
通讯作者:
P. Boley;H. Linz;R. Boekel;T. Henning;M. Feldt;L. Kaper;C. Leinert;A. Mueller;I. Pascucci;M. Robberto;B. Stecklum;L. Waters;H. Zinnecker
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
L. Chernin;C. Masson
通讯作者:
C. Masson
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. Ragland;K. Ohnaka;L. Hillenbrand;S. Ridgway;M. Colavita;R. Akeson;W. Cotton;W. Danchi;M. Hrynevich;R. Millan;W. Traub
通讯作者:
W. Traub
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Joshua A Eisner;Eugene Chiang;Benjamin F. Lane;R. Akeson
通讯作者:
R. Akeson
DOI:
10.1088/0004-637x/752/1/11
发表时间:
2012
期刊:
The Astrophysical Journal
影响因子:
--
作者:
S. Kraus;N. Calvet;L. Hartmann;K. Hofmann;A. Kreplin;J. Monnier;G. Weigelt
通讯作者:
G. Weigelt