Results 41 to 50 of about 5,548,804 (305)

The star formation history of the young open cluster NGC 2244 [PDF]

, 2023
A star formation history (SFH) is the stellar record of the various processes that shaped a galaxy or an open cluster since its birth to its current physical state. Studying the NGC 2244 cluster, and in particular its massive star population, can improve
Nazé, Yaël, Mahy, Laurent, Furst, Théo   +2 more
core  

Interstellar ices as carriers of supernova material to the early solar system

Nature Communications
Planetary materials show systematic variations in their nucleosynthetic isotope compositions that resonate with orbital distance. The origin of this pattern remains debated, limiting how these isotopic signatures can be used to trace the precursors of ...
Martin Bizzarro, Martin Schiller, Jesper Holst, Laura Bouvier, Miroslav Groen, Frédéric Moynier, Elishevah M. M. E. van Kooten, Maria Schönbächler, Troels Haugbølle, Darach Watson, Anders Johansen, James N. Connelly, Emil Bizzarro   +12 more
doaj   +1 more source

Gas dynamics around dust asymmetries in turbulent disks

Astronomy & Astrophysics
High-resolution ALMA observations have revealed asymmetric dust crescents in several protoplanetary disks, suggesting efficient dust trapping mechanisms potentially linked to gas vortices.
Flores-Rivera Lizxandra, Manger Natascha, Lambrechts Michiel, Flock Mario, Lorek Sebastian, Johansen Anders, Klahr Hubert   +6 more
doaj   +1 more source

HH 80/81: Structure and Kinematics of the Fastest Protostellar Outflow

The Astrophysical Journal, 2023
Hubble Space Telescope (HST) images obtained in 2018 are combined with archival HST data taken in 1995 to detect changes and measure proper motions in the HH 80/81 shock complex, which is powered by the fastest known jet driven by a forming star, the ...
John Bally, Bo Reipurth
doaj   +1 more source

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

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Investigation into Triggered Star Formation by Radiative Driven Implosion [PDF]

, 2016
When massive stars form, they emit strong, hydrogen ionising radiation fields into their molecular cloud environment, forming HII regions. This is believed to be capable of inducing effects which can trigger further star formation through a process known
Kinnear, Timothy Michael
core  

The Presolar Heritage of 50Ti and 26Al Heterogeneity in the Protoplanetary Disk

The Astrophysical Journal
Nucleosynthetic isotope anomalies have been documented within the solar protoplanetary disk for several isotopes, including ^48 Ca, ^50 Ti, ^54 Cr, ^94 Mo, and ^96 Zr.
Kirsten K. Larsen, Troels Haugbølle, James N. Connelly, Elishevah van Kooten, Martin Bizzarro, Martin Schiller   +5 more
doaj   +1 more source

A break in planet occurrence near the pebble isolation mass should be observable by the Roman microlensing survey

Astronomy & Astrophysics
Microlensing detections are uniquely well suited to probing the population of planets outside the water ice line, down to planetary masses comparable to the Earth’s. We performed 1D pebble-accretion population synthesis simulations to explore a sample of
Danti Claudia, Lambrechts Michiel, Diamond-Lowe Hannah   +2 more
doaj   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source