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Home All issues Volume 705 (January 2026) A&A, 705 (2026) A196 Full HTML
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Table C.1

MCMC results for discs with a clear single peak.

Double power law
Disc Rc (au) αin αout Σc PA (°) Δ α (mas) Δ δ (mas) i (°) F* (μ Jy)
HD 9672 95 96−4+4$96_{-4}^{+4}$ 2.4 2.27−0.19+0.21$2.27_{-0.19}^{+0.21}$ −1.1 −1.11−0.09+0.08$-1.11_{-0.09}^{+0.08}$ −4.188 −4.191−0.009+0.009$-4.191_{-0.009}^{+0.009}$ 108.02 107.95−0.15+0.12$107.95_{-0.15}^{+0.12}$ 46 51−15+16$51_{-15}^{+16}$ −38 −39−6+7$-39_{-6}^{+7}$ 79.1 79.13−0.11+0.12$79.13_{-0.11}^{+0.12}$ 16 14−9+10$14_{-9}^{+10}$
HD 10647 74.5 73.7−0.7+0.8$73.7_{-0.7}^{+0.8}$ 120 140−90+100$140_{-90}^{+100}$ −1.22 −1.24−0.08+0.04$-1.24_{-0.08}^{+0.04}$ −4.584 −4.578−0.010+0.015$-4.578_{-0.010}^{+0.015}$ 57.48 57.04−0.07+0.46$57.04_{-0.07}^{+0.46}$ 118 123−10+10$123_{-10}^{+10}$ −23 −22−8+8$-22_{-8}^{+8}$ 79.69 79.37−0.13+0.37$79.37_{-0.13}^{+0.37}$ 142 138−9+10$138_{-9}^{+10}$
HD 14055 189 181−13+9$181_{-13}^{+9}$ 1.19 1.20−0.11+0.14$1.20_{-0.11}^{+0.14}$ −3.7 −3.1−1.0+0.7$-3.1_{-1.0}^{+0.7}$ −5.074 −5.075−0.014+0.014$-5.075_{-0.014}^{+0.014}$ 161.93 161.60−0.14+0.27$161.60_{-0.14}^{+0.27}$ −56 −62−10+9$-62_{-10}^{+9}$ −67 −66−12+12$-66_{-12}^{+12}$ 80.2 80.0−0.3+0.2$80.0_{-0.3}^{+0.2}$ 100 101−10+9$101_{-10}^{+9}$
HD 15257 240 250−40+50$250_{-40}^{+50}$ 0.9 0.8−0.2+0.4$0.8_{-0.2}^{+0.4}$ −2.3 −3.1−2.9+1.3$-3.1_{-2.9}^{+1.3}$ −5.11 −5.12−0.06+0.05$-5.12_{-0.06}^{+0.05}$ 51 49−4+3$49_{-4}^{+3}$ 100 100−70+80$100_{-70}^{+80}$ 130 100−90+90$100_{-90}^{+90}$ 65 63−3+3$63_{-3}^{+3}$ 100 100−30+30$100_{-30}^{+30}$
HD 32297 105.1 105.2−0.5+0.7$105.2_{-0.5}^{+0.7}$ 110 100−50+60$100_{-50}^{+60}$ −6.33 −6.30−0.12+0.12$-6.30_{-0.12}^{+0.12}$ −2.719 −2.722−0.014+0.013$-2.722_{-0.014}^{+0.013}$ 47.45 47.47−0.03+0.05$47.47_{-0.03}^{+0.05}$ 20.2 20.5−1.4+1.6$20.5_{-1.4}^{+1.6}$ 15.3 15.3−1.3+1.3$15.3_{-1.3}^{+1.3}$ 88.46 88.39−0.05+0.07$88.39_{-0.05}^{+0.07}$ 23 23−11+13$23_{-11}^{+13}$
HD 39060 134 130−5+5$130_{-5}^{+5}$ 1.07 1.09−0.07+0.10$1.09_{-0.07}^{+0.10}$ −5.4 −4.8−0.8+0.8$-4.8_{-0.8}^{+0.8}$ −4.202 −4.201−0.011+0.012$-4.201_{-0.011}^{+0.012}$ 29.66 29.73−0.06+0.07$29.73_{-0.06}^{+0.07}$ 29 26−12+13$26_{-12}^{+13}$ 3 −4−18+19$-4_{-18}^{+19}$ 86.06 86.06−0.07+0.04$86.06_{-0.07}^{+0.04}$ 73 66−13+12$66_{-13}^{+12}$
HD 84870 220 220−30+30$220_{-30}^{+30}$ 1.5 1.5−0.3+0.3$1.5_{-0.3}^{+0.3}$ −1.9 −2.0−0.7+0.5$-2.0_{-0.7}^{+0.5}$ −4.70 −4.70−0.04+0.03$-4.70_{-0.04}^{+0.03}$ 134 137−3+4$137_{-3}^{+4}$ 390 360−80+70$360_{-80}^{+70}$ −360 −280−100+100$-280_{-100}^{+100}$ 55 53−2+3$53_{-2}^{+3}$ 0 8−6+10$8_{-6}^{+10}$
HD 95086 199 198−7+11$198_{-7}^{+11}$ 1.84 1.93−0.18+0.20$1.93_{-0.18}^{+0.20}$ −2.6 −2.5−0.3+0.2$-2.5_{-0.3}^{+0.2}$ −3.966 −3.972−0.017+0.015$-3.972_{-0.017}^{+0.015}$ 99 97−2+3$97_{-2}^{+3}$ −120 −110−40+40$-110_{-40}^{+40}$ 90 90−30+30$90_{-30}^{+30}$ 30 31−2+3$31_{-2}^{+3}$ 22 20−13+16$20_{-13}^{+16}$
HD 121617 68.5 68.5−0.5+0.7$68.5_{-0.5}^{+0.7}$ 70 60−20+30$60_{-20}^{+30}$ −6.9 −6.9−0.4+0.2$-6.9_{-0.4}^{+0.2}$ −2.993 −2.995−0.021+0.019$-2.995_{-0.021}^{+0.019}$ 58.7 58.4−0.6+0.7$58.4_{-0.6}^{+0.7}$ −1 0−3+2$0_{-3}^{+2}$ −4 −3−3+2$-3_{-3}^{+2}$ 44.5 44.6−0.7+0.4$44.6_{-0.7}^{+0.4}$ 22 27−10+10$27_{-10}^{+10}$
HD 145560 74.5 75.0−1.2+1.2$75.0_{-1.2}^{+1.2}$ 6.1 6−0.5+0.6$6_{-0.5}^{+0.6}$ −6.8 −7.1−0.5+0.4$-7.1_{-0.5}^{+0.4}$ −3.058 −3.056−0.016+0.015$-3.056_{-0.016}^{+0.015}$ 40 39.2−0.8+0.8$39.2_{-0.8}^{+0.8}$ 16 17−3+3$17_{-3}^{+3}$ −19 −18−3+4$-18_{-3}^{+4}$ 47.5 47.5−0.5+0.5$47.5_{-0.5}^{+0.5}$ 24 26−8+9$26_{-8}^{+9}$
HD 161868 154 154−10+8$154_{-10}^{+8}$ 0.97 0.99−0.11+0.14$0.99_{-0.11}^{+0.14}$ −3.9 −3.7−0.8+0.7$-3.7_{-0.8}^{+0.7}$ −4.97 −4.98−0.03+0.02$-4.98_{-0.03}^{+0.02}$ 55.1 56.1−1.5+1.9$56.1_{-1.5}^{+1.9}$ 10 0−20+30$0_{-20}^{+30}$ −90 −100−20+30$-100_{-20}^{+30}$ 65.1 65.7−1.1+1.2$65.7_{-1.1}^{+1.2}$ 151 152−20+20$152_{-20}^{+20}$
HD 170773 197 200−7+13$200_{-7}^{+13}$ 6.3 5.6−1.2+1.0$5.6_{-1.2}^{+1.0}$ −10 −11−5+2$-11_{-5}^{+2}$ −3.99 −4.00−0.03+0.02$-4.00_{-0.03}^{+0.02}$ 113.4 113.4−9.8+1.8$113.4_{-9.8}^{+1.8}$ −130 −130−40+30$-130_{-40}^{+30}$ 20 20−30+30$20_{-30}^{+30}$ 32.9 31.7−1.6+1.9$31.7_{-1.6}^{+1.9}$ 90 80−20+20$80_{-20}^{+20}$
TYC 9340 99 98−7+6$98_{-7}^{+6}$ 1.73 1.77−0.14+0.17$1.77_{-0.14}^{+0.17}$ −1.9 −1.8−0.3+0.3$-1.8_{-0.3}^{+0.3}$ −3.834 −3.840−0.020+0.020$-3.840_{-0.020}^{+0.020}$ 152 147−16+8$147_{-16}^{+8}$ −10 −20−60+50$-20_{-60}^{+50}$ −30 −50−50+40$-50_{-50}^{+40}$ 29 32−4+3$32_{-4}^{+3}$ 1 7−5+11$7_{-5}^{+11}$
Asymmetric Gaussian
Disc Rc (au) σin (au) σout (au) Σc PA (°) Δ α (mas) Δ δ (mas) i (°) F* (μ Jy)
HD 76582 184 181−8+9$181_{-8}^{+9}$ 55 53−6+6$53_{-6}^{+6}$ 143 145−10+10$145_{-10}^{+10}$ −4.825 −4.822−0.014+0.013$-4.822_{-0.014}^{+0.013}$ 104.8 104.7−0.5+0.3$104.7_{-0.5}^{+0.3}$ 0 −20−50+50$-20_{-50}^{+50}$ −40 −50−20+30$-50_{-20}^{+30}$ 73.8 73.7−0.7+0.4$73.7_{-0.7}^{+0.4}$ 53 57−17+18$57_{-17}^{+18}$
HD 161868 115 120−9+11$120_{-9}^{+11}$ 50 54−8+9$54_{-8}^{+9}$ 74 72−11+10$72_{-11}^{+10}$ −5.12 −5.12−0.03+0.02$-5.12_{-0.03}^{+0.02}$ 55.1 57.0−1.9+2.3$57.0_{-1.9}^{+2.3}$ 0 10−30+30$10_{-30}^{+30}$ −100 −110−20+30$-110_{-20}^{+30}$ 65.4 66.4−1.4+1.2$66.4_{-1.4}^{+1.2}$ 150 140−30+20$140_{-30}^{+20}$
HD 170773 191 194−4+7$194_{-4}^{+7}$ 27 29−3+6$29_{-3}^{+6}$ 27 26−4+3$26_{-4}^{+3}$ −4.185 −4.191−0.018+0.018$-4.191_{-0.018}^{+0.018}$ 115.1 113.3−2.9+1.7$113.3_{-2.9}^{+1.7}$ −120 −130−30+40$-130_{-30}^{+40}$ 10 20−20+30$20_{-20}^{+30}$ 32.1 32.2−1.6+1.6$32.2_{-1.6}^{+1.6}$ 90 80−20+20$80_{-20}^{+20}$
TYC 9340 78 81−5+4$81_{-5}^{+4}$ 25 26−3+2$26_{-3}^{+2}$ 91 88−9+9$88_{-9}^{+9}$ −4.012 −4.017−0.020+0.020$-4.017_{-0.020}^{+0.020}$ 151 137−13+16$137_{-13}^{+16}$ −50 −60−50+60$-60_{-50}^{+60}$ 20 40−60+60$40_{-60}^{+60}$ 28 30−5+4$30_{-5}^{+4}$ 1 9−7+12$9_{-7}^{+12}$
HD 218396 205 208−10+11$208_{-10}^{+11}$ 45 48−6+5$48_{-6}^{+5}$ 89 96−9+14$96_{-9}^{+14}$ −4.91 −4.93−0.02+.03$-4.93_{-0.02}^{+.03}$ 95 92−13+3$92_{-13}^{+3}$ −30 −60−50+50$-60_{-50}^{+50}$ −90 −100−70+60$-100_{-70}^{+60}$ 12 12−6+16$12_{-6}^{+16}$ 58 55−10+10$55_{-10}^{+10}$
Power law + error function
Disc Rc (au)} σin (au)} αout Σc PA (°) Δ α (mas) Δ δ (mas) i (°) F* (μ Jy)
HD 15257 130 110−30+30$110_{-30}^{+30}$ 0.46 0.51−0.12+0.35$0.51_{-0.12}^{+0.35}$ 0.9 0.6−0.4+0.5$0.6_{-0.4}^{+0.5}$ −5.33 −5.40−0.12+0.10$-5.40_{-0.12}^{+0.10}$ 47 47−3+3$47_{-3}^{+3}$ 130 80−70+70$80_{-70}^{+70}$ 80 80−90+80$80_{-90}^{+80}$ 61.4 62.4−2.1+1.9$62.4_{-2.1}^{+1.9}$ 50 50−30+40$50_{-30}^{+40}$
HD 121617 67.5 67.8−0.4+0.6$67.8_{-0.4}^{+0.6}$ 0.007 0.018−0.011+0.014$0.018_{-0.011}^{+0.014}$ 6.7 6.9−0.3+0.4$6.9_{-0.3}^{+0.4}$ −3.268 −3.264−0.016+0.017$-3.264_{-0.016}^{+0.017}$ 58.6 58.4−0.6+0.7$58.4_{-0.6}^{+0.7}$ 0 0−3+2$0_{-3}^{+2}$ −4 −3−3+2$-3_{-3}^{+2}$ 44.4 44.6−0.6+0.4$44.6_{-0.6}^{+0.4}$ 22 27−10+10$27_{-10}^{+10}$
HD 161868 100 99−4+3$99_{-4}^{+3}$ 0.299 0.297−0.014+0.015$0.297_{-0.014}^{+0.015}$ 1.89 1.90−0.17+0.16$1.90_{-0.17}^{+0.16}$ −5.13 −5.12−0.03+0.02$-5.12_{-0.03}^{+0.02}$ 58.9 58.5−1.2+1.1$58.5_{-1.2}^{+1.1}$ 60 70−30+30$70_{-30}^{+30}$ −160 −150−30+20$-150_{-30}^{+20}$ 67.7 66.8−1.1+1.1$66.8_{-1.1}^{+1.1}$ 20 27−19+29$27_{-19}^{+29}$

Notes. The left column under each parameter is the best fit—defined as having the lowest χ2 value—while the right column is the median. Uncertainties are calculated from the 16th and 84th percentiles of the posterior distribution. We report multiple parametrisations for discs where the significance between these models, as measured by the AIC and the BIC, was minimal or ambiguous. The surface density normalisation Σc is parametrised as an exponent, with 10Σc in units of g cm−2.

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