Eposode 79: Sounds like a black hole|Eposodio 79: Parece ser un hoyo negro|Eposodio 79: Cela ressemble à un trou noir|Eposodio 79: Mi ricorda un buco nero

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What does it mean?

Solar mass – This is the mass of our Sun, or about 2 x 1030 kilograms.

Gamma ray – The very highest energy end of the electromagnetic spectrum.

Dude, where’s my science?

Alkina does not seem convinced that the object in front of her is a black hole. Can you think of any reasons why she should be skeptical that the object might be a black hole?

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¡Un episodio nuevo cada lunes!

¿Qué significa eso?

Masa solar – Describe la cantidad de masa que tiene nuestro Sol, y es una unidad de masa igual a 2 x 1030 kilogramos.

Rayo gamma – Es luz dentro del rango más energético del espectro electromagnético.

¡En nuestra lengua por favor!

Alkina no está convencida de que el objeto frente a ellos es un hoyo negro. ¿Puedes pensar en una razón por la cual desconfiaría que el objeto sea un hoyo negro?

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Nouvel épisode chaque lundi!

Qu’est ce que cela signifie?

La masse solaire – est la masse de notre Soleil, soit environ 2 x 1030 kilogrammes

Rayons gamma – représente l’extrémité des hautes énergies du spectre électromagnétique.

En langage courant!

Alkina ne semble pas convaincue que l’objet devant elle est un trou noir. Pouvez-vous penser à des raisons qui font régner le doute sur le fait que cet objet est un trou noir?

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Un nuovo episodio ogni Lunedi!

Cosa significa?

Massa solare – E’ la massa del nostro Sole, circa 2 x 1030 chilogrammi.

Raggi gamma – L’energia più alta dello spettro elettromagnetico.

Nella nostra lingua per favore!

Alkina non sembra convinta che l’oggetto che le sta di fronte sia un buco nero. Sai dire perché lei dovrebbe essere scettica sul fatto che l’oggetto possa essere un buco nero?

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One Response to “Eposode 79: Sounds like a black hole|Eposodio 79: Parece ser un hoyo negro|Eposodio 79: Cela ressemble à un trou noir|Eposodio 79: Mi ricorda un buco nero”

  1. Walabio Says:

    The main reason to be skeptical about the object being a black hole is its low mass:

    Assuming that the object was a star, which is itself an unfounded assumption, it would be a white dwarf. White dwarves would take much longer than the age of the universe to cool down to a few Kelvins. White dwarves should be stable up to 2.8*10^30kg. Above that, and upto 5*10^30kg, one would expect neutron-stars. A neutron-star would still take longer than the age of the universe to cool to a few Kelvins.

    ¿What is it? I do not know. When one hears hoof-beats, one should think horses:

    It could be a regular star, protostar, or white dwarf behind a dusty nebula. If it is a protostar, it could be accreting out of the nebula. In any case, it should be visible in the infrared.

    ¿What if it is not atypical object? Many hypothetical objects exist, but I would not hazard a guess.