{"id":2238,"date":"2025-05-06T11:18:27","date_gmt":"2025-05-06T09:18:27","guid":{"rendered":"https:\/\/astrokit.uv.es\/?p=2238"},"modified":"2025-06-13T12:36:32","modified_gmt":"2025-06-13T10:36:32","slug":"cumul-de-galaxies-de-coma-2","status":"publish","type":"post","link":"https:\/\/astrokit.uv.es\/?p=2238","title":{"rendered":"C\u00famul de gal\u00e0xies de Coma – lectura f\u00e0cil"},"content":{"rendered":"\n
\n

Els c\u00famuls de gal\u00e0xies<\/h2>\n\n\n\n

Un c\u00famul de gal\u00e0xies \u00e9s un grup molt gran de gal\u00e0xies.
Les gal\u00e0xies estan unides entre si per una for\u00e7a que es diu gravetat<\/strong>.
Totes es troben en la mateixa zona de l\u2019espai.<\/p>\n\n\n\n

Al centre del c\u00famul sol haver-hi una gal\u00e0xia molt gran.
Esta gal\u00e0xia t\u00e9 tanta for\u00e7a que fa que les altres giren al seu voltant.<\/p>\n\n\n\n

Les gal\u00e0xies del c\u00famul estan dins d\u2019un n\u00favol que no es pot veure.
Aquest n\u00favol es diu halo de mat\u00e8ria fosca<\/strong>.
La mat\u00e8ria fosca representa el 90% de la massa del c\u00famul<\/strong>.
Les gal\u00e0xies estan unides per filaments de mat\u00e8ria fosca.<\/p>\n\n\n\n

\n<\/div>\n\n\n\n
\n

El c\u00famul de gal\u00e0xies de Coma<\/h2>\n\n\n\n

El c\u00famul de Coma \u00e9s especial.
T\u00e9 dues gal\u00e0xies molt grans al centre<\/strong>:
una es diu NGC 4874<\/strong> i l\u2019altra NGC 4889<\/strong>.
Gr\u00e0cies a la seua gran for\u00e7a,
m\u00e9s de 1.000 gal\u00e0xies<\/strong> giren al seu voltant.
Estes gal\u00e0xies poden tindre forma el\u00b7l\u00edptica, espiral o lenticular<\/strong>.<\/p>\n\n\n\n

\n<\/div>\n\n\n\n
\n

El model 3D<\/h2>\n\n\n\n

En el model es poden veure les 20 gal\u00e0xies m\u00e9s brillants<\/strong> del c\u00famul.<\/p>\n\n\n\n

Des de la Terra, veiem les gal\u00e0xies com si estigueren en un mateix pla.
En el model passa el mateix.
Per a vore-ho correctament, cal mirar amb el logotip de l\u2019Observatori Astron\u00f2mic de cara<\/strong>.<\/p>\n\n\n\n

No sabem exactament a quina dist\u00e0ncia est\u00e0 cada gal\u00e0xia.
Per aix\u00f2, en el model, la profunditat no \u00e9s real<\/strong>.
Hem usat un m\u00e8tode aproximat basat en la llum de cada gal\u00e0xia<\/strong>,
encara que no siga totalment correcte.<\/p>\n\n\n\n

Les gal\u00e0xies estan \u201cpenjant<\/strong>\u201d de filaments de mat\u00e8ria fosca.
Els buidats del model<\/strong> deixen espai per a poder tocar-les amb els dits.<\/p>\n\n\n\n

La forma de cada gal\u00e0xia en el model mostra com \u00e9s en realitat:
el\u00b7l\u00edptica, espiral o lenticular<\/strong>.<\/p>\n\n\n\n

Este model ha sigut creat per Emilio Terol (OAUV)<\/strong> i Alberto Fern\u00e1ndez-Soto (IFCA)<\/strong>
amb dades cient\u00edfiques p\u00fabliques del c\u00famul de gal\u00e0xies de Coma.<\/p>\n\n\n\n

<\/div>\n<\/div>\n\n\n\n

Este treball ha estat realitzat amb una ajuda de la convocat\u00f2ria de Projectes R+D+i \u00abProves de Concepte\u00bb 2022 (PDC2022), finan\u00e7ada per la Uni\u00f3 Europea a trav\u00e9s dels Fons NextGenerationEU, Pla de Recuperaci\u00f3, Transformaci\u00f3 i Resili\u00e8ncia. Refer\u00e8ncia: PDC2022-133930-I00.<\/strong><\/p>\n\n\n\n

\n
<\/div>\n\n\n
\n
<\/div>\n\n\n\n
\nDescarrega el model<\/a>\n<\/div>\n\n\n\n
<\/div>\n<\/div>\n\n\n
<\/div>\n\n\n

M\u00e9s not\u00edcies<\/a><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Els c\u00famuls de gal\u00e0xies Un c\u00famul de gal\u00e0xies \u00e9s un grup molt gran de gal\u00e0xies.Les gal\u00e0xies estan unides entre si per una for\u00e7a que es diu gravetat.Totes es troben en la mateixa zona de l\u2019espai. Al centre del c\u00famul sol haver-hi una gal\u00e0xia molt gran.Esta gal\u00e0xia t\u00e9 tanta for\u00e7a que fa que les altres giren al […]<\/p>\n","protected":false},"author":4,"featured_media":2204,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","editor_plus_copied_stylings":"{}","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[76],"tags":[],"class_list":["post-2238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticies-lectura-facil"],"jetpack_featured_media_url":"https:\/\/astrokit.uv.es\/wp-content\/uploads\/2025\/05\/Coma.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2238"}],"version-history":[{"count":7,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2238\/revisions"}],"predecessor-version":[{"id":2892,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2238\/revisions\/2892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/media\/2204"}],"wp:attachment":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}