Results 31 to 40 of about 3,997 (213)

Stellar population astrophysics (SPA) with the TNG [PDF]

, 2022
Context. The Perseus complex in the outer disk of the Galaxy hosts a number of clusters and associations of young stars. Gaia is providing a detailed characterization of their kinematic structure and evolutionary properties. Aims.
C. Fanelli, Sanna N., E. Dalessandro, A. Mucciarelli, Fanelli C., Oliva E., Mucciarelli A., E. Oliva, N. Sanna, L. Origlia, Origlia L., Dalessandro E.   +11 more
core   +1 more source

Modelling the evolution of solar-mass stars with a range of metallicities using MESA

EPJ Web of Conferences, 2015
The nuclides 1,2H, 3,4He, 7Li, 7Be, 8B, 12,13C, 13-15N, 14-18O, 17-19F, 18-22Ne, 22Mg, and 24Mg were used in the code package MESA (Modules for Experiments in Stellar Astrophysics)[Paxton] to model a one-solar-mass star with a range of metallicities, z ...
Jones E.F., Gore P.M.
doaj   +1 more source

Simulations of stellar convection, pulsation and semiconvection [PDF]

, 2010
We report on modelling in stellar astrophysics with the ANTARES code. First, we describe properties of turbulence in solar granulation as seen in high-resolution calculations.
Muthsam, H., Friedrich Kupka, Hannes Grimm-Strele, Herbert J. Muthsam, Grimm-Strele, H., Kupka, F., Mundprecht, E., Florian Zaussinger, Natalie Happenhofer, Happenhofer, N., Eva Mundprecht, Zaussinger, F.   +11 more
core   +1 more source

Neutrino Oscillation in a Minimal Length Spacetime

Astronomische Nachrichten, EarlyView.
ABSTRACT We investigate how neutrino oscillations are modified in a non‐commutative spacetime characterized by a minimal length scale, described by the Quesne–Tkachuk algebra. By incorporating the algebra's deformation parameter β$$ \beta $$ into the effective neutrino mass, we derive the two‐flavor oscillation probability in this non‐commutative ...
Luísa Nadal‐Camargo, Thiago Oliveira Ferreira, Dimiter Hadjimichef, César A. Z. Vasconcellos   +3 more
wiley   +1 more source

The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email [PDF]

, 2001
The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide.
Kurtz, Michael J., Eichhorn, Guenther, Grant, Carolyn S., Accomazzi, Alberto, Murray, Stephen S.   +4 more
core   +1 more source

Solar cycles during the seventeenth century revealed by equatorial aurora records

Earth and Planetary Physics
Solar cycles are fundamental to astrophysics, space exploration, technological infrastructure, and Earth's climate. A better understanding of these cycles and their history can aid in risk mitigation on Earth, while also deepening our knowledge of ...
Yong Wei, LiMei Yan
doaj   +1 more source

Plasma Astrophysics: Kinetic Processes in Solar and Stellar Coronae, Second Edition

Eos, Transactions American Geophysical Union, 2003
A collision‐less plasma is an ionized fluid that is so hot and tenuous that interactions between individual particles are unimportant. In such a plasma, electric and magnetic fields mediate interactions among particles, and fundamental physics is addressed by kinetic theories that describe not only the spatial and temporal variations of the medium, but
openaire   +1 more source

The life and work of Ernest Sydney Keeping

Canadian Journal of Statistics, EarlyView.
Abstract This article reviews the life and contributions of Ernest S. Keeping (1895–1984), a British‐born physicist who became a mathematics professor at the University of Alberta in 1929. He played a pivotal role in shaping the university's Mathematics Department, serving as its head from 1954 to 1961, and continuing to teach until 1970, nine years ...
David R. Bellhouse, Christian Genest
wiley   +1 more source

BPASS Stellar Models in DataFrames

, 2020
This data set is made of 26 binary files (.pckl) that contain pandas DataFrames compiling all the BPASS stellar models for the fiducial IMF (img135_300 - see BPASS manual for more info or contact hfstevance@gmail or @sydonahi on Twitter).
Heloise Stevance
core   +1 more source

Influence of surface stressing on stellar coronae and winds [PDF]

, 2013
STFC funding has supported this research.The large-scale field of the Sun is well represented by its lowest energy (or potential) state. Recent observations, by comparison, reveal that many solar-type stars show large-scale surface magnetic fields that ...
Morin, J., Fares, R., Jardine, Moira, Donati, J. -F., Jardine, M., Morin, Julien, Fares, Rim, Donati, J.-F., Vidotto, A. A., Donati, Jean-François, Gombosi, T. I., van Ballegooijen, A., Gombosi, Tamas I., Jardine, M.; id_orcid   +13 more
core   +1 more source