Consistent dust and gas models for protoplanetary disks - I. Disk shape, dust settling, opacities, and PAHs

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Volume 586 (February 2016)

A&A, 586 (2016) A103

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Table A.1

Assumed/derived stellar parameters for two example objects.


Symbol	Unit	Meaning	TW Hya	AB Aur


d	[pc]	distance^a	51	144
T _⋆	[K]	effective temperature^a	4000	9550
L _⋆	[L_⊙]	photospheric luminosity	0.24	42
A _V	[mag]	interstellar extinction	0.20	0.42


M _⋆	[M_⊙]	stellar mass	0.75	2.5
R _⋆	[R_⊙]	photospheric radius	1.026	2.37
log g	[cm/s²]	surface gravity	4.29	4.08
SpTyp	[–]	spectral type	K7	A0
age	[Myr]	stellar age	13	5


L _UV1 / L _⋆	[–]	band 1 UV luminosity^b	0.0019	0.00024
L _UV2 / L _⋆	[–]	band 2 UV luminosity^c	0.053	0.095
L _Lyα / L _⋆	[–]	Lyman α luminosity	0.034	0.00021
p _UV	[–]	UV powerlaw fit index	1.1	11


L _X1	[10³⁰ erg/s]	hard X-ray luminosity^d	0.27	0.099
L _X2	[10³⁰ erg/s]	total X-ray luminosity^e	1.74	0.63
N _H	10²² cm^-2	X-ray absorption column	0.06	0.15
T _X	[10⁶ K]	X-ray emission temps.^f	2.3, 7.9, 21.5	2.0, 7.6
⟨ T_X ⟩	[10⁶ K]	mean X-ray temp.^g	3.7	4.4
T _X,fit	[10⁶ K]	fitted X-ray temp.^h	18	8.2

Notes.

^(a)

Assumed;

^(b)

L_UV1 integrated between 91.2 nm and 111 nm;

^(c)

L_UV2 integrated between 91.2 nm and 205 nm;

^(d)

L_X1 integrated between 1 keV and 10 keV;

^(e)

L_X2 integrated between 0.3 keV and 10 keV;

^(f)

X-ray emission components fitted to the data;

^(g)

mean value, weighted by component emission masses;

^(h)

best fit obtained with bremsstrahlungs-fit (Eq. (A.2)).

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