Planet J0438

Detailed information about planet J0438 and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

J0438

Mass

50.0

M_J 1 publication

MINDS: The very low-mass star and brown dwarf sample -- Hidden water in carbon-dominated protoplanetary disks

Mass*sin(i)

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Semi-Major Axis

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Orbital Period

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Eccentricity

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ω

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T_peri

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Radius

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Inclination

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Primary transit

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Secondary transit

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λ

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Impact Parameter b

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Time V_r=0

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Velocity Semiamplitude K

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Calculated temperature

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Measured temperature

2838.0 K 1 publication

MINDS. Anatomy of a water-rich, inclined, brown dwarf disk: lack of abundant hydrocarbons

Hottest point longitude

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Surface gravity log(g/g_H)

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Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Reference
Ar+
Ar+	Measurements	Detected	2025 - PEROTTI G.
C2H2
C2H2	Measurements	Detected	2025 - ARABHAVI A.
CO
CO	Measurements	Detected	2025 - PEROTTI G.
CO2
CO2	Measurements	Detected	2025 - PEROTTI G.
H2
H2	Measurements	Detected	2025 - PEROTTI G.
H2O
H2O	Measurements	Detected	2025 - ARABHAVI A.
HCN
HCN	Measurements	Detected	2025 - PEROTTI G.
Ne+
Ne+	Measurements	Detected	2025 - PEROTTI G.

Spectral type M7.25. Possible physical association to proto-brown dwarf GM Tau 2.38 arcminutes away (23,842 AUs at 140 pc).
The brown dwarf is surrounded by a 40 AU-wide disk inclined by 67-71° and rich in molecular species. However CO emission is detect up to 400 AUs away.

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