De geboorte van sterren boven ALMA
Deze afbeelding is gemaakt tijdens de ESO Ultra HD Expedition. Drie verre objecten stralen boven een van de schotels van de Atacama Large Millimeter/submillimeter Array (ALMA).
Het meest opvallend is de rode Carinanevel, ook bekend als NGC 3372. Het is een grote gaswolk van voornamelijk waterstof waar recent stervorming heeft plaatsgevonden. Kortlevende zware blauwe sterren zenden enorme hoeveelheden uv-straling uit. Dat zorgt voor de ionisatie van het omliggende gas waardoor de waterstofatomen een karakteristieke rode kleur uitstralen. Uiteindelijk zullen supernova-explosies en sterrenwinden van de zwaarste sterren het gas van de Carinanevel verspreiden en blijven er een of meer clusters van sterren over.
Twee van zulk soort clusters, NGC 3532 en IC 2602, zijn zichtbaar rechtsboven en linksboven de Carinanevel.
Alle drie de objecten behoren tot het sterrenbeeld Carina (Kiel) en zijn voor het eerst gecatalogiseerd door de Franse sterrenkundige Nicolas Louis de Lacaille. De objecten lijken op de afbeelding dicht bij elkaar te staan, maar ze staan in werkelijkheid ver van elkaar vandaan. IC 2602 ligt minder dan 500 lichtjaar van de aarde. NGC 3532 bevindt zich op 1300 lichtjaar afstand. En de Carinanevel ligt waarschijnlijk op meer dan 10.000 lichtjaar bij ons vandaan.
Credit:ESO/B. Tafreshi
Over de afbeelding
| Id: | potw1548a |
| Taal: | nl |
| Type: | Fotografisch |
| Publicatiedatum: | 30 november 2015 06:00 |
| Grootte: | 6144 x 4096 px |
Over het object
| Naam: | Atacama Large Millimeter/submillimeter Array |
| Type: | Unspecified : Technology : Observatory : Telescope |
Afbeeldingstypen
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