{"id":11005,"date":"2025-02-04T21:13:53","date_gmt":"2025-02-04T19:13:53","guid":{"rendered":"https:\/\/uni-mag.gr\/que-son-galaxias-espirales-en-interaccion\/"},"modified":"2025-02-15T12:14:17","modified_gmt":"2025-02-15T10:14:17","slug":"que-son-galaxias-espirales-en-interaccion","status":"publish","type":"post","link":"https:\/\/www.uni-mag.gr\/es\/que-son-galaxias-espirales-en-interaccion\/","title":{"rendered":"\u00bfQu\u00e9 son? Galaxias espirales en interacci\u00f3n"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1004\" height=\"666\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-NAS_GAL2.gif\" alt=\"\" class=\"wp-image-10906\"\/><figcaption class=\"wp-element-caption\"><em>Secuencia temporal de la interacci\u00f3n cercana entre dos galaxias espirales (de arriba a la izquierda a abajo a la derecha).<\/em><\/figcaption><\/figure>\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Inicialmente, las dos galaxias se acercan. Tras la colisi\u00f3n, ambas se deforman. Comienzan a formarse colas de marea, que seguir\u00e1n decorando los restos de la colisi\u00f3n durante mucho tiempo (como se observa en las tres \u00faltimas im\u00e1genes de la secuencia).   <\/p>\n\n<p class=\"wp-block-paragraph\">\u2013 Buenas noches. \u00bfC\u00f3mo te llamas? Yo soy NGC 5257.  <\/p>\n\n<p class=\"wp-block-paragraph\">Normalmente, para que dos desconocidos hablen entre s\u00ed, alguien debe presentarlos primero. De lo contrario, ser\u00eda completamente \u201cinapropiado\u201d que hablaran sin m\u00e1s. <\/p>\n\n<p class=\"wp-block-paragraph\">\u2013 Aqu\u00ed est\u00e1 el se\u00f1or X.<\/p>\n\n<p class=\"wp-block-paragraph\">\u2013 Aqu\u00ed est\u00e1 la se\u00f1ora Y.<\/p>\n\n<p class=\"wp-block-paragraph\">Solo entonces comienzan a hablar. Incluso empiezan a bailar uno alrededor del otro. Ahora ya no es \u201cinapropiado\u201d.  <br\/>\u00bfPero acaso es \u201ccorrecto\u201d que una galaxia gire alrededor de la otra sin hablar?<br\/>\u00bfQui\u00e9n ha decidido estas reglas?<br\/>\u00bfAlguien pregunt\u00f3 a estas dos galaxias si quer\u00edan estar tan cerca?<br\/>La gravedad no pregunta a nadie.<br\/>\u00bfCrees que Newton fue consultado antes de que la manzana cayera sobre su cabeza? Por supuesto que no. La manzana madur\u00f3, y lleg\u00f3 el momento de separarse del \u00e1rbol. Se desprendi\u00f3.<br\/>Y entonces, la gravedad se hizo cargo, sin pedir permiso a nadie.<br\/>As\u00ed, la manzana inici\u00f3 su viaje hacia el centro de la Tierra. Por desgracia, la cabeza de Newton estaba en su camino.       <\/p>\n\n<p class=\"wp-block-paragraph\">Con los humanos es diferente. Uno le pregunta al otro: \u201c\u00bfQuieres casarte conmigo?\u201d<br\/>Si se casan, solo entonces comienza el baile desenfrenado.<br\/>Mientras tanto, las galaxias comienzan su baile salvaje sin preguntas, exigencias, condiciones ni planes para el futuro.<br\/>Y lo que suceda, simplemente es bienvenido.<br\/>\u00bfSe formar\u00e1n nuevas estrellas en la materia interestelar comprimida de las galaxias?<br\/>Bienvenidas ser\u00e1n.<br\/>\u00bfSe crear\u00e1n agujeros negros en los n\u00facleos de las galaxias en danza?<br\/>Bienvenidos ser\u00e1n.<br\/>\u00bfO tal vez no suceda ninguna de las dos cosas?<br\/>Bienvenida ser\u00e1 tambi\u00e9n esa posibilidad.        <br\/>Pero NGC 5257 y NGC 5258 bailan maravillosamente.<br\/>\u00bfEs tambi\u00e9n este hermoso baile resultado de la gravedad? <\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"NASA supercomputer simulation of colliding galaxies\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/FMPuujaldZk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Al principio, una galaxia se acerca a la otra, ambas llenas de un deseo infinito de uni\u00f3n.<br\/>Colisionan. Se forma una regi\u00f3n c\u00e1lida y rojiza entre ellas.<br\/>Luego, una galaxia empieza a destruir a la otra.<br\/>\u00a1Oh, qu\u00e9 est\u00e1 pasando aqu\u00ed!<br\/>Una levanta los brazos en desesperaci\u00f3n. La otra tambi\u00e9n. La materia fluye entre ellas.<br\/>Un viento poderoso arrastra los materiales de ambas galaxias a lo lejos.<br\/>Al final, sus n\u00facleos se fusionan en uno solo.<br\/>As\u00ed es como dos galaxias se convierten en una sola.         <br\/><br\/>\u00bfDisfruta NGC 5257 del baile?<br\/>\u00bfY NGC 5258? <br\/><br\/>\u00bfO soy yo la \u00fanica que disfruta viendo c\u00f3mo giran y se devoran entre s\u00ed?<br\/>\u00a1Can\u00edbales!<br\/>Esto se llama canibalismo gal\u00e1ctico. Es como si una galaxia se comiera a la otra.<br\/>Y pensar que al inicio del baile parec\u00edan amarse verdaderamente, como si ninguna quisiera hacerle da\u00f1o a la otra.<br\/>\u00bfEl hecho de que se devoraran significa que no se amaban?<br\/>\u00bfO significa exactamente lo contrario?      <\/p>\n\n<p class=\"wp-block-paragraph\"><em><strong>NOTAS<br\/><\/strong><\/em>Un ejemplo de galaxias en interacci\u00f3n: NGC 5257 y NGC 5258.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-1024x1024.jpg\" alt=\"\" class=\"wp-image-10910\" srcset=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-1024x1024.jpg 1024w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-300x300.jpg 300w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-150x150.jpg 150w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-768x768.jpg 768w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at-200x200.jpg 200w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/02\/issue-11-heic0810at.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"card-text\">Mientras las galaxias comienzan un baile desenfrenado alrededor una de la otra, sin muchas preguntas, exigencias, condiciones ni sue\u00f1os para el futuro.  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