Results 41 to 50 of about 316,672 (296)

Optical and Infrared Counterparts of the X-Ray Sources Detected in the Chandra Cygnus OB2 Legacy Survey

The Astrophysical Journal Supplement Series, 2023
The young massive OB association Cygnus OB2, in the Cygnus X complex, is the closest (∼1400 pc) star-forming region to the Sun hosting thousands of young low-mass stars and up to 1000 OB stars, among which are some of the most massive stars known in our ...
M. G. Guarcello, J. J. Drake, N. J. Wright, T. Naylor, E. Flaccomio, V. L. Kashyap, D. García-Alvarez   +6 more
doaj   +1 more source

Massive star formation: Nurture, not nature

, 2004
We investigate the physical processes which lead to the formation of massive stars. Using a numerical simulation of the formation of a stellar cluster from a turbulent molecular cloud, we evaluate the relevant contributions of fragmentation and ...
Bate, Bate, Behrend, Benz, Bonnell, Bonnell, Bonnell, Bonnell, Bonnell, Bonnell, Bonnell, Clarke, Clarke, Delgado-Donaté, Edgar, Elmegreen, Hillenbrand, Ian A. Bonnell, Klessen, Klessen, Lada, Larson, Larson, Larson, Larson, Mac, Masunaga, Matthew R. Bate, McKee, McKee, Monaghan, Motte, Murray, Osorio, Ostriker, Padoan, Shu, Stephen G. Vine, Testi, Testi, Wolfire, Yorke, Yorke, Zinnecker   +43 more
core   +2 more sources

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

Signatures of Mass Segregation from Competitive Accretion and Monolithic Collapse

The Astrophysical Journal
The two main competing theories proposed to explain the formation of massive (>10 M _⊙ ) stars—competitive accretion and monolithic core collapse—make different observable predictions for the environment of the massive stars during, and immediately after,
Richard J. Parker, Emily J. Pinson, Hayley L. Alcock, James E. Dale   +3 more
doaj   +1 more source

Isolated massive star candidates in NGC 4242 with the Galaxy UV Legacy Project

Astronomy & Astrophysics
Context. There is considerable debate about the formation of massive stars, including whether a high-mass star must always form with a population of low-mass stars, or if it can also form in isolation.
Facchini Pietro, Grebel Eva K., Pasquali Anna, Sabbi Elena, Meena Beena, Bajaj Varun, Gallagher III John S., Elmegreen Bruce G., Bianchi Luciana, Adamo Angela, Calzetti Daniela, Cignoni Michele, Crowther Paul A., Eldridge Jan J., Gennaro Mario, Klessen Ralf S., Smith Linda J., Wofford Aida, Zeidler Peter   +18 more
doaj   +1 more source

A Census of B[e] Supergiants

Galaxies, 2019
Stellar evolution theory is most uncertain for massive stars. For reliable predictions of the evolution of massive stars and their final fate, solid constraints on the physical parameters, and their changes along the evolution and in different ...
Michaela Kraus
doaj   +1 more source

Massive stars in the Cl 1813-178 Cluster. An episode of massive star formation in the W33 complex

, 2011
Young massive (M >10^4 Msun) stellar clusters are a good laboratory to study the evolution of massive stars. Only a dozen of such clusters are known in the Galaxy. Here we report about a new young massive stellar cluster in the Milky Way.
Ben Davies, Beuther, Bibby, Bieging, Bonanos, Brogan, Brunthaler, Christine Trombley, Conti, Dame, Davies, Donald F. Figer, Elena Valenti, F. Najarro, Figer, Figer, Goss, Hanson, Helfand, Helfand, Hillier, Indebetouw, Koornneef, Levesque, Maria Messineo, Massey, Mauerhan, Mercer, Messineo, Messineo, Messineo, Meynet, Meynet, Moorwood, Najarro, Najarro, R. Michael Rich, R. P. Kudritzki, Reid, Ritchie, Schaerer, Schaller, Skinner, Skrutskie, Waldron, Wegner, White, Zacharias   +47 more
core   +1 more source

Gravoturbulent Star Formation: Effects of the Equation of State on Stellar Masses [PDF]

, 2005
Stars form by gravoturbulent fragmentation of interstellar gas clouds. The supersonic turbulence ubiquitously observed in Galactic molecular gas generates strong density fluctuations with gravity taking over in the densest and most massive regions ...
Jappsen, A. -K., Klessen, R. S., Spaans, M.   +2 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Dust around Massive Stars Is Agnostic to Galactic Environment: New Insights from PHAT/BEAST

The Astrophysical Journal
Resolving the environments of massive stars is crucial for understanding their formation mechanisms and their impact on galaxy evolution. An important open question is whether massive stars found in diffuse regions outside spiral arms formed in situ or ...
Christina Willecke Lindberg, Claire E. Murray, Julianne J. Dalcanton, J. E. G. Peek, Karl D. Gordon   +4 more
doaj   +1 more source