Classé par l' #UNESCO en 2013,le #disque_de_Nebra, de 31 cm de diamètre, incrusté d'or avec #étoiles et #soleil, date de l' #âge_du_bronze!
#Archaeometallurgical #investigation of #NebraSkyDisc
www.nature.com/articles/s41...
#Pleiades #chanupa #sacred_pipe #Eternity #WolfRayetStars #flowers #Galaxy
Rappresentazione artistica di WR 112, un sistema binario che contiene una massiccia stella Wolf-Rayet evoluta e una compagna di tipo OB. Quando i loro venti stellari si scontrano, si forma polvere che si avvolge verso l’esterno a spirale, composta principalmente da granelli estremamente piccoli, di dimensioni nanometriche, insieme a una popolazione secondaria circa 100 volte più grande.
Un quintilione a uno: stelle giganti, polvere minuscola
#alma #webb #WolfRayetStars @astronomia
ALMA e JWST rivelano granelli di polvere di carbonio su scala nanometrica provenienti da un sistema stellare binario massiccio.
umbertogaetani.substack.com/p/un-quintilione-a-uno-s...
New in the #VirtualObservatory: “Hot massive-star X-ray sp. from Chandra HETGS” by Pradhan P. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/954/123
#Spectroscopy #OStars #WolfRayetStars #XRaySources
New in the #VirtualObservatory: “Photometric and Spectral Data of Galactic Wolf-Rayet Stars (WC and WO
sequence)” by L.N. Kondratyeva, I.V. Reva, E.K. Denissyuk, S.A. Shomshekova, A.K.
Aimanova
https://dachs.fai.kz/wr_wc_spec_res_table/q/q/info
#JohnsonPhotometry #BvPhotometry #Spectroscopy […]
A stunning image of NGC 2359, a nebula illuminated by the central Wolf-Rayet star. The star's powerful stellar wind creates a large, vibrant bubble-like structure within the nebula, showcasing the dynamic processes of massive star evolution. The colors depict various gas emissions, and countless distant stars pepper the background.
Astronomy Picture from 03/01/1997
A Wolf-Rayet Star Blows Bubbles
Source: https://apod.nasa.gov/apod/ap970103.html
#WolfRayetStars #CosmicBubbles #NebulaNGC2359 #StellarWind #SpaceAstronomy #Astrophotography #MilkyWayGalaxy #SpaceScience #AstronomyLover #Stargazing
Ever wonder what happens when the most massive stars in the universe near the end of their lives? Enter Wolf-Rayet stars! My simulation (attached below).
These stellar behemoths—living fast, burning bright, and dying young.These are the "bad boys" of the cosmos.
#Astro #WolfRayetStars #Supernova
