The thermal emission of Centaurs and trans-Neptunian objects at millimeter wavelengths from ALMA observations

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Volume 608 (December 2017)

A&A, 608 (2017) A45

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Table 4

Additional thermal modeling fit results: Chiron and Bienor.

Object	Model	Diameter or	Geometric	Beaming	Thermal	Ref. for	Relative submm
		a, b, c (km)	albedo	factor	inertia (MKS)	submm/mm data	emissivity

Chiron	TPM^a small rough.	214	0.167	N/A	0.7	This work	0.62 (1.29 mm)

Chiron	TPM^a interm. rough.	211	0.171	N/A	2.1	This work	0.64 (1.29 mm)

Chiron	TPM^a large rough.	210	0.180	N/A	4.9	This work	0.65 (1.29 mm)

Chiron	NEATM, elliptical	114 × 98 × 62	0.10	0.93	N/A	This work	0.70 (1.29 mm)

						A95^b	0.56 (1.20 mm)

Chiron, ring-corr.	NEATM	186	0.100	0.87	N/A	This work	0.55 (1.29 mm)

						A95^b	0.41 (1.20 mm)

Chiron, ring-corr.	NEATM, elliptical	100 × 86 × 54	0.13	0.84	N/A	This work	0.62 (1.29 mm)

						A95^b	0.46 (1.20 mm)

Chiron, ring-corr.^c	NEATM, elliptical	100 × 86 × 54	0.13	0.84	N/A	This work	0.87 (1.29 mm)

Bienor	TPM^a no rough.	184	0.050	N/A	8	This work	0.66 (1.29 mm)

Bienor	TPM^a small rough.	182	0.049	N/A	10	This work	0.67 (1.29 mm)

Bienor	TPM^a interm. rough.	180	0.050	N/A	12	This work	0.68 (1.29 mm)

Bienor	TPM^a big rough.	179	0.053	N/A	15	This work	0.68 (1.29 mm)

Bienor	NEATM, elliptical	144 × 65 × 51	0.041	1.24 ± 0.10	N/A	This work	0.64 (1.29 mm)

Notes.

^(a)

TPM: thermophysical model.

^(b)

A95: Altenhoff & Stumpff (1995).

^(c)

In this case, the 1.29 mm flux is not corrected for a ring contribution, representing a case with extreme roll-off in brightness temperature towards long wavelengths.

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