"hydrogen" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- Type IIb supernovae are likely massive stars which have lost most, but not all, of their hydrogen envelopes through tidal force by a companion star.
- All but a small fraction of the hydrogen envelope was driven away from the star, leaving behind a white dwarf remnant composed primarily of the inert core.
- When the hydrogen envelope has been further reduced to around 10 M, the envelope will have been so disrupted that it is believed further significant mass loss is not possible.
- These stars will still have a hydrogen envelope and will explode as a type II supernova.
- If the star is not surrounded by a thick, diffuse hydrogen envelope, the jets' material can pummel all the way to the stellar surface.
- Type Ib and Ic supernovae lack hydrogen absorption lines, consistent with the theoretical prediction of stars that have lost their hydrogen envelope.
- The brothers subsequently experimented with an elongated elliptical shape for the hydrogen envelope in a balloon they attempted to power and steer by means of oars and umbrellas.
- When core collapse occurs during a supergiant phase when the star still has a hydrogen envelope, the result is a type II supernova.
- At low metallicity, all stars will reach core collapse with a hydrogen envelope but sufficiently massive stars collapse directly to a black hole without producing a visible supernova.
- BHB stars are more evolved and have helium burning cores, although they still have an extensive hydrogen envelope.
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