Results 51 to 60 of about 429,563 (275)

The formation of star clusters [PDF]

, 2003
The ability of HST to resolve objects ten times smaller than possible from the ground has rejuvenated the study of young star clusters. A recurrent morphological theme found in nearby resolved sytems is the observation of young (typically 1 - 10 Myr), massive (10**3 - 10**4 M_sun), compact (rho ~ 10**5 M_sun/pc**3) clusters which have evacuated the gas
openaire   +2 more sources

Globular cluster star classification: Application to M13 [PDF]

Serbian Astronomical Journal, 2013
Starting from recent determination of Fe, O, Na abundances on a restricted sample (N = 67) of halo and thick disk stars, a natural and well motivated selection criterion is defined for the classification globular cluster stars. An application is
Caimmi R.
doaj   +1 more source

How star clusters could survive low star formation efficiencies

, 2004
After the stars of a new, embedded star cluster have formed they blow the remaining gas out of the cluster. Especially winds of high mass stars and definitely the on-set of the first super novae can remove the residual gas from a cluster. This leads to a
Fellhauer, M., Kroupa, P.
core   +1 more source

Star Formation History of a Young Super-Star Cluster in NGC 4038/39: Direct Detection of Low Mass Pre-Main Sequence Stars [PDF]

, 2010
We present an analysis of the near-infrared spectrum of a young massive star cluster in the overlap region of the interacting galaxies NGC 4038/39 using population synthesis models.
Blum, Brandl, Christopher, Covey, Doppmann, Gilbert, Gorlova, Grebel, Indebetouw, Julia Greissl, Larsen, Leitherer, Leitherer, Levesque, Massey, McCrady, Melo, Mengel, Meyer, Meyer, Meyer, Michael R. Meyer, Micol H. Christopher, Mirabel, Neff, Nick Z. Scoville, Siess, Snijders, Steidel, Tremonti, Vazquez, Wallace, Wang, Whitmore, Whitmore   +34 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

The Chinese ground-based instrumentation in support of the combined Cluster/Double Star satellite measurements [PDF]

Annales Geophysicae, 2005
Ground-based observations can be used to provide substantial support for Cluster/Double Star measurements and greatly enhance the mission's scientific return. There are six Chinese ground stations involved in coordinated cluster/Double Star and ground-
R.-Y. Liu, Y.-H. Liu, Z.-H. Xu, H.-Q. Hu, H.-G. Yang, B.-C. Zhang, W.-Y. Xu, G.-X. Chen, J. Wu, W.-M. Zhen, D.-H. Huang, Z.-J. Hu, Z.-X. Deng   +12 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82

The Astrophysical Journal Letters
We present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4
Rebecca C. Levy, Alberto D. Bolatto, Divakara Mayya, Bolivia Cuevas-Otahola, Elizabeth Tarantino, Martha L. Boyer, Leindert A. Boogaard, Torsten Böker, Serena A. Cronin, Daniel A. Dale, Keaton Donaghue, Kimberly L. Emig, Deanne B. Fisher, Simon C. O. Glover, Rodrigo Herrera-Camus, María J. Jiménez-Donaire, Ralf S. Klessen, Laura Lenkić, Adam K. Leroy, Ilse De Looze, David S. Meier, Elisabeth A. C. Mills, Juergen Ott, Mónica Relaño, Sylvain Veilleux, Vicente Villanueva, Fabian Walter, Paul P. van der Werf   +27 more
doaj   +1 more source

Star formation in young star cluster NGC 1893 [PDF]

, 2007
We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation.
A. K. Pandey, Aumann, B. C. Bhatt, Bertelli, Bertout, Bessell, Brandl, Carraro, Chen, Chini, Cohen, Cuffey, D. K. Ojha, Dolan, Elmegreen, Fischer, Fitzsimmons, G. Maheswar, Gaze, Ghosh, Ghosh, Herbig, Hillenbrand, Hillenbrand, Hoag, Huang, Israel, Johnson, Joshi, Kaluzny, King, Koorneef, Kroupa, Lada, Lada, Lada, Lada, Landolt, Leisawitz, Marco, Marco, Massey, Massey, Mathieu, Mathieu, McNamara, Meyer, Moffat, Ojha, Ojha, Pandey, Pandey, Pandey, Pandey, Pandey, Pandey, Pandey, Phelps, Phelps, Preibisch, Price, Ram Sagar, Robin, S. K. Ghosh, Sagar, Sagar, Sagar, Salpeter, Saurabh Sharma, Schmidt-Kaler, Sharma, Siess, Spitzer, Stetson, Stetson, Sung, Tapia, Vallenari, W. P. Chen   +78 more
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source