Exoplanets & Life

Worlds beyond the Solar System, detection methods, habitability, atmospheres and the scientific search for life.

4articles

Ilustração de uma estrela jovem envolta por um disco luminoso de gás e poeira, com um planeta gigante escuro embutido no disco à direita.

Exoplanets & Life17/09/20268 min read

Elias 2-24 b: how the youngest known planet was confirmed and why it shortens the formation timeline

Elias 2-24 b belongs to a system younger than 1 million years. See how Keck, ALMA, and VLT confirmed the planet and which conclusions about age, mass, and formation still depend on...

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Ilustração espacial com estrela oscilando, exoplaneta em órbita inclinada, telescópio, curva de velocidade radial e diagrama do ângulo orbital.

Exoplanets & Life12/09/20266 min read

Does radial velocity measure an exoplanet's true mass? Understanding M sin i

Radial velocity usually yields M sin i, the minimum mass. Learn how inclination changes the true mass and how transits or astrometry break the degeneracy.

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Ilustração espacial com estrela brilhante, disco de detritos e um gigante gasoso ligado visualmente a um espectro de absorção multicolorido.

Exoplanets & Life10/09/20266 min read

Beta Pictoris d: how Webb found a planet through its atmospheric signature

Webb identified Beta Pictoris d by isolating molecular lines, measuring the Doppler shift, and separating a planetary atmosphere from the glow of the debris disk.

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Anã marrom avermelhada em primeiro plano com um pequeno corpo rochoso em órbita, estrela brilhante e disco de detritos ao fundo.

Exoplanets & Life10/09/20265 min read

Is the CD-35 2722 B exosatellite the first exomoon? What the study actually detected

The Nature study used radial velocity to detect the signature of at least one planetary-mass exosatellite around CD-35 2722 B; calling it the first exomoon still depends on definit...

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