scholarly journals Constraining cosmic ray acceleration in young star clusters using multi-wavelength observations

2018 ◽  
Vol 479 (4) ◽  
pp. 5220-5234 ◽  
Author(s):  
Siddhartha Gupta ◽  
Biman B Nath ◽  
Prateek Sharma
Keyword(s):  
Star Clusters ◽  
Cosmic Ray ◽  
Young Star ◽  
Cosmic Ray Acceleration ◽  
Multi Wavelength ◽  
Young Star Clusters

scholarly journals Constraining star formation timescales with molecular gas and young star clusters

2019 ◽  
Vol 15 (S352) ◽  
pp. 350-352
Author(s):  
Kathryn Grasha ◽  
Daniela Calzetti
Keyword(s):  
Star Formation ◽  
Galaxy Evolution ◽  
Star Clusters ◽  
Young Star ◽  
Molecular Gas ◽  
Gas Reservoirs ◽  
Multi Wavelength ◽  
Predictive Theory ◽  
Young Star Clusters ◽  
Co Observations

AbstractStar formation provides insight into the physical processes that govern the transformation of gas into stars. A key missing piece in a predictive theory of star formation is the link between scales of individual stars and star clusters up to entire galaxies. LEGUS is now providing the information to test the overall organization and spatial evolution of star formation. We present our latest findings of using star clusters from LEGUS combined with ALMA CO observations to investigate the transition from molecular gas to star formation in local galaxies. This work paves the way for future JWST observations of the embedded phase of star formation, the last missing ingredient to connect young star clusters and their relation with gas reservoirs. Multi-wavelength studies of local galaxies and their stellar and gas components will help shed light on early phases of galaxy evolution and properties of the ISM at high-z.

scholarly journals Diffuse γ-ray emission toward the massive star-forming region, W40

2020 ◽  
Vol 639 ◽  
pp. A80
Author(s):  
Xiao-Na Sun ◽  
Rui-Zhi Yang ◽  
Yun-Feng Liang ◽  
Fang-Kun Peng ◽  
Hai-Ming Zhang ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
High Energy ◽  
Young Star ◽  
Gas Content ◽  
Large Area ◽  
Stellar Cluster ◽  
Production Region ◽  
Star Forming ◽  
Photon Index ◽  
Young Star Clusters

We report the detection of high-energy γ-ray signal towards the young star-forming region, W40. Using 10-yr Pass 8 data from the Fermi Large Area Telescope (Fermi-LAT), we extracted an extended γ-ray excess region with a significance of ~18σ. The radiation has a spectrum with a photon index of 2.49 ± 0.01. The spatial correlation with the ionized gas content favors the hadronic origin of the γ-ray emission. The total cosmic-ray (CR) proton energy in the γ-ray production region is estimated to be the order of 1047 erg. However, this could be a small fraction of the total energy released in cosmic rays (CRs) by local accelerators, presumably by massive stars, over the lifetime of the system. If so, W40, together with earlier detections of γ-rays from Cygnus cocoon, Westerlund 1, Westerlund 2, NGC 3603, and 30 Dor C, supports the hypothesis that young star clusters are effective CR factories. The unique aspect of this result is that the γ-ray emission is detected, for the first time, from a stellar cluster itself, rather than from the surrounding “cocoons”.

scholarly journals Hyperfast pulsars as the remnants of massive stars ejected from young star clusters

2008 ◽  
Vol 385 (2) ◽  
pp. 929-938 ◽  
Author(s):  
Vasilii V. Gvaramadze ◽  
Alessia Gualandris ◽  
Simon Portegies Zwart
Keyword(s):  
Massive Stars ◽  
Star Clusters ◽  
Young Star ◽  
Young Star Clusters

scholarly journals Young star clusters in interacting galaxies – NGC 1487 and NGC 4038/4039

2008 ◽  
Vol 489 (3) ◽  
pp. 1091-1105 ◽  
Author(s):  
S. Mengel ◽  
M. D. Lehnert ◽  
N. A. Thatte ◽  
W. D. Vacca ◽  
B. Whitmore ◽  
...  
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Interacting Galaxies ◽  
Young Star Clusters

scholarly journals Seven young star clusters in the inner region of the Small Magellanic Cloud

2008 ◽  
Vol 389 (1) ◽  
pp. 429-440 ◽  
Author(s):  
Andrés E. Piatti ◽  
Doug Geisler ◽  
Ata Sarajedini ◽  
Carme Gallart ◽  
Marina Wischnjewsky
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Inner Region ◽  
Young Star Clusters

scholarly journals Hubble Space TelescopeObservations of Three Very Young Star Clusters in the Small Magellanic Cloud

2003 ◽  
Vol 598 (2) ◽  
pp. 1000-1004 ◽  
Author(s):  
Letizia Stanghellini ◽  
Eva Villaver ◽  
Richard A. Shaw ◽  
Max Mutchler
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
Young Star Clusters

Advanced Camera for Surveys Observations of Young Star Clusters in the Interacting Galaxy UGC 10214

2003 ◽  
Vol 585 (2) ◽  
pp. 750-755 ◽  
Author(s):  
H. D. Tran ◽  
M. Sirianni ◽  
H. C. Ford ◽  
G. D. Illingworth ◽  
M. Clampin ◽  
...  
Keyword(s):  
Star Clusters ◽  
Young Star ◽  
Advanced Camera For Surveys ◽  
Young Star Clusters
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