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Table 1

Stellar and disk properties of the HD 100453 system.

Parameter Value Reference
HD 100453 (A)

Spectral type A9 - F0 (1)
Mass 1.6 ± 0.05 M (1)
Radius 1.58 ± 0.06 R (1)
Teff 7250 ±125 K (1)
Age 6.5-19.2 Myr (1), (2)
Distance 103.61 ± 0.24 pc (1)
Luminosity 6.2 ± 0.14 L (1)
Companion (B)
Spectral type M4.0V - M4.5V (3)
Mass 0.18 ± 0.03 M (3)
Age 8-12 Myr (3)
Projected separation a 1.05" (~109 au) (3)
Disk(s)
Inclination (outer) 38° (4)
Position angle (outer)b 142° (4)
Inclination (inner) 48.7°-46.1° (5), (6)
Position angle (inner)b 80.8°-81.6° (5), (6)
Asym. angle (inner, K band)b −106° ± 4° (6)
Hypothesised planet
Mass (theory) ≤5MJup (7)
Mass (non-detection) ≤50MJup (8)
Estimated distance 15-20 au (7)
Estimated period 45-72 yr

Notes. (a)Outside L band AT field of view, pinhole = 1.5λ/D ≈ 0.60". (b)All angles are defined as north to east. (1) Guzmán-Díaz et al. (2021); (2) Vioque et al. (2018); (3) Collins et al. (2009); (4) Benisty et al. (2017); (5) Lazareff et al. (2017); (6) Bohn et al. (2022); (7) Nealon et al. (2020); (8) Stolker et al. (2024).

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