Results 91 to 100 of about 170,841 (292)

The star cluster - field star connection in nearby spiral galaxies. II. Field star and cluster formation histories and their relation

, 2011
Recent studies have started to cast doubt on the assumption that most stars are formed in clusters. Observational studies of field stars and star cluster systems in nearby galaxies can lead to better constraints on the fraction of stars forming in ...
Larsen, Soeren, Silva-Villa, Esteban
core   +2 more sources

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi, Lara Basovic, Christopher Michael McGraw   +2 more
wiley   +1 more source

Lost Sisters Found: TESS and Gaia Reveal a Dissolving Pleiades Complex

The Astrophysical Journal
Most star clusters dissolve into the Galaxy over tens to hundreds of millions of years after they form. While recent Gaia studies have honed our view of cluster dispersal, the exact chronology of which star formation events begat which star cluster ...
Andrew W. Boyle, Luke G. Bouma, Andrew W. Mann   +2 more
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Identification of Star Clusters in M31 from PAndAS Images Based on Deep Learning

The Astrophysical Journal Supplement Series
The identification of star clusters holds significant importance in studying galaxy formation and evolution history. However, the task of swiftly and accurately identifying star clusters from vast amounts of photometric images presents an immense ...
Baisong Zhang, Bingqiu Chen, Haibo Yuan, Pinjian Chen, Shoucheng Wang, Lunwei Zhang, Yi Ren, Helong Guo   +7 more
doaj   +1 more source

Centrally concentrated star formation in young clusters

Astronomy & Astrophysics
The study of star cluster evolution necessitates modeling how their density profiles develop from their natal gas distribution. Observational evidence indicates that many star clusters follow a Plummer-like density profile.
Assilkhan Adilkhan, Mac Low Mordecai-Mark, Polak Brooke, Abdikamalov Ernazar, Cournoyer-Cloutier Claude, Lewis Sean C., Kalambay Mukhagali, Otebay Aigerim, Shukirgaliyev Bekdaulet   +8 more
doaj   +1 more source

Star cluster formation and evolution in Mrk 930: properties of a metal-poor starburst

, 2011
We present a HST multiband analysis of the large population of star clusters in the blue compact galaxy (BCG) Mrk 930. We have reconstructed the spectral energy distributions of the star clusters and estimated age, mass, and extinction for a ...
A. Adamo, Adamo, Adamo, Adamo, Adamo, Alonso-Herrero, Anders, Arp, Asari, Baldwin, Barth, Bastian, Bastian, Bastian, Bastian, Billett, Brandner, Bruzual, Cabanac, Cairós, Calzetti, Campbell, Cardelli, Carlson, Carlson, Cerviño, Chandar, Cid Fernandes, Cid Fernandes, Conti, Cresci, Crowther, de Grijs, Dopita, E. Zackrisson, Eggenberger, Elmegreen, Fellhauer, Ferland, Fernández-Ontiveros, Fruchter, G. Micheva, G. Östlin, Gieles, Gieles, Gieles, Goddard, Gordon, Greissl, Guseva, Holtzman, Hopkins, Hunter, Izotov, Kennicutt, Kennicutt, Koekemoer, Kroupa, Krüger, Lada, Lamers, Lançon, Larsen, Larsen, Leroy, Madden, Maeder, Malkan, Maraston, Marigo, Mateus, Mazzarella, Maíz Apellániz, Melnick, Mengel, Meyer, Mora, N. Bergvall, Osterbrock, O’Halloran, P. Papaderos, Papaderos, Pellerin, Perrin, Portegies Zwart, R. M. Rich, Reines, Reines, Rosa González, Scalo, Schlegel, Silva-Villa, Smith, Thuan, Väisänen, Walborn, Walborn, Weidner, Whitmore, Whitmore, Witt, Zackrisson, Zackrisson, Östlin, Östlin, Östlin, Östlin   +106 more
core   +1 more source

SPG4 and Dementia: Expanding the Clinical Spectrum

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza, Arun Meyyazhagan, Eliseo Picchi, Gustavo Ribas, Ingrid Faber, Ryosuke Miyamoto, Preethi Basavaraju, Paolo Eusebi, Haripriya Kuchi Bhotla, Mario Stasi, Fabrizio Gaudiello, Francesco Patti, Filippo Maria Santorelli, Marcondes Cavalcante França Jr, José Luiz Pedroso, Orlando Graziani Povoas Barsottini, Hélio Afonso Ghizoni Teive, Peter Henry St George‐Hyslop, Toshitaka Kawarai, Antonio Orlacchio   +19 more
wiley   +1 more source

Between the Cosmic-Ray “Knee” and the “Ankle”: Contribution from Star Clusters

The Astrophysical Journal
We show that massive, young star clusters may be possible candidates that can accelerate Galactic cosmic rays (CRs) in the range of 10 ^7 –10 ^9 GeV (between the “knee” and “ankle”).
Sourav Bhadra, Satyendra Thoudam, Biman B Nath, Prateek Sharma   +3 more
doaj   +1 more source

Micro-tidal disruption events in young star clusters

Astronomy & Astrophysics
Context. Dense young star clusters (YSCs) are ideal environments for dynamical interactions between stars and stellar compact objects, such as black holes and neutron stars.
Rastello Sara, Iorio Giuliano, Gieles Mark, Wang Long   +3 more
doaj   +1 more source