SwePub
Sök i LIBRIS databas

  Utökad sökning

(WFRF:(Rosolowsky Erik)) srt2:(2020-2021) mspu:(article)
 

Sökning: (WFRF:(Rosolowsky Erik)) srt2:(2020-2021) mspu:(article) > Outflows from Super...

  • Levy, Rebecca C.University of Maryland (författare)

Outflows from Super Star Clusters in the Central Starburst of NGC 253

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-04-29
  • American Astronomical Society,2021

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:feab5d37-058b-416a-b09d-195ae3748440
  • https://research.chalmers.se/publication/523855URI
  • https://doi.org/10.3847/1538-4357/abec84DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Young massive clusters play an important role in the evolution of their host galaxies, and feedback from the high-mass stars in these clusters can have profound effects on the surrounding interstellar medium. The nuclear starburst in the nearby galaxy NGC 253 at a distance of 3.5 Mpc is a key laboratory in which to study star formation in an extreme environment. Previous high-resolution (1.9 pc) dust continuum observations from the Atacama Large Millimeter/submillimeter Array (ALMA) discovered 14 compact, massive super star clusters (SSCs) still in formation. We present here ALMA data at 350 GHz with 28 mas (0.5 pc) resolution. We detect blueshifted absorption and redshifted emission (P-Cygni profiles) toward three of these SSCs in multiple lines, including CS 7-6 and (HCN)-C-13 4-3, which represent direct evidence for previously unobserved outflows. The mass contained in these outflows is a significant fraction of the cluster gas masses, which suggests we are witnessing a short but important phase. Further evidence of this is the finding of a molecular shell around the only SSC visible at near-IR wavelengths. We model the P-Cygni line profiles to constrain the outflow geometry, finding that the outflows must be nearly spherical. Through a comparison of the outflow properties with predictions from simulations, we find that none of the available mechanisms completely explains the observations, although dust-reprocessed radiation pressure and O star stellar winds are the most likely candidates. The observed outflows will have a very substantial effect on the clusters' evolution and star formation efficiency.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Bolatto, Alberto D.University of Maryland (författare)
  • Leroy, Adam K.Ohio State University (författare)
  • Emig, Kimberly L.Universiteit Leiden (UL),Leiden University (UL),National Radio Astronomy Observatory (författare)
  • Gorski, Mark,1989Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)markgo (författare)
  • Krieger, NicoMax Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (författare)
  • Lenkic, LauraUniversity of Maryland (författare)
  • Meier, David S.National Radio Astronomy Observatory Socorro,New Mexico Institute of Mining and Technology (författare)
  • Mills, Elisabeth A. C.University of Kansas (författare)
  • Ott, JuergenNational Radio Astronomy Observatory Socorro (författare)
  • Rosolowsky, ErikUniversity of Alberta (författare)
  • Tarantino, ElizabethUniversity of Maryland (författare)
  • Veilleux, SylvainUniversity of Maryland (författare)
  • Walter, FabianMax Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),National Radio Astronomy Observatory Socorro (författare)
  • Weiss, AxelMax Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (författare)
  • Zwaan, Martin A.European Southern Observatory Santiago (författare)
  • University of MarylandOhio State University (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Astrophysical Journal: American Astronomical Society912:11538-43570004-637X

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy