Results 61 to 70 of about 478 (147)

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived from LAMOST Low-resolution Spectra with DD-PAYNE

The Astrophysical Journal Supplement Series
A deep understanding of our Galaxy calls for detailed decomposition of its stellar populations via their chemical fingerprints. This requires precise stellar abundances of many elements for a large number of stars.
Meng Zhang, Maosheng Xiang, Yuan-Sen Ting, Anish Mayur Amarsi, Hua-Wei Zhang, Jianrong Shi, Haibo Yuan, Haining Li, Jiahui Wang, Yaqian Wu, Tianmin Wu, Lanya Mou, Hong-Liang Yan, Jifeng Liu   +13 more
doaj   +1 more source

Properties of the Magellanic Corona

The Astrophysical Journal
We characterize the Magellanic Corona, the warm gaseous halo around the Large Magellanic Cloud (LMC). The Corona is a key ingredient in the formation of the Magellanic Stream and has recently been observed in high-ion absorption around the LMC.
Scott Lucchini, Elena D’Onghia, Andrew J. Fox   +2 more
doaj   +1 more source

Forecasts for Galaxy Formation and Dark Matter Constraints from Dwarf Galaxy Surveys

The Astrophysical Journal
The abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential galaxy formation and DM constraints from future dwarf
Ethan O. Nadler, Vera Gluscevic, Trey Driskell, Risa H. Wechsler, Leonidas A. Moustakas, Andrew Benson, Yao-Yuan Mao   +6 more
doaj   +1 more source

Characterizing the 3D Structure of Molecular Cloud Envelopes in the Cloud Factory Simulations

The Astrophysical Journal
We leverage recent numerical simulations of highly resolved star-forming regions in a Milky Way–like galaxy to explore the nature of extended gaseous envelopes around molecular clouds.
Elijah Mullens, Catherine Zucker, Claire E. Murray, Rowan Smith   +3 more
doaj   +1 more source

Calculation and comparison of certain physical properties of sample irregular galaxies with the Milky Way galaxy

Karbala International Journal of Modern Science, 2021
openaire   +2 more sources

Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-poor Star KIC 8144907

The Astrophysical Journal
Very-metal-poor stars ([Fe/H] < −2) are important laboratories for testing stellar models and reconstructing the formation history of our galaxy. Asteroseismology is a powerful tool to probe stellar interiors and measure ages, but few asteroseismic ...
Daniel Huber, Ditte Slumstrup, Marc Hon, Yaguang Li, Victor Aguirre Børsen-Koch, Timothy R. Bedding, Meridith Joyce, J. M. Joel Ong, Aldo Serenelli, Dennis Stello, Travis Berger, Samuel K. Grunblatt, Michael Greklek-McKeon, Teruyuki Hirano, Evan N. Kirby, Marc H. Pinsonneault, Arthur Alencastro Puls, Joel Zinn   +17 more
doaj   +1 more source

Study of physical properties of molecular clouds in the Milky Way Galaxy based on FUGIN datasets with machine learning

Study of physical properties of molecular clouds in the Milky Way Galaxy based on FUGIN datasets with machine learning
2022 【要旨】
openaire   +1 more source

A Turbulent Framework for Star Formation in High-redshift Galaxies

The Astrophysical Journal
Observations of distant galaxies suggest that the physics of galaxy formation at high redshifts differs significantly from later times. In contrast to large, steady disk galaxies like the Milky Way, high-redshift galaxies are often characterized by ...
Guochao Sun, Claude-André Faucher-Giguère, Jonathan Stern   +2 more
doaj   +1 more source

Close Encounters of Wide Binaries Induced by the Galactic Tide: Implications for Stellar Mergers and Gravitational-wave Sources

The Astrophysical Journal Letters
A substantial fraction of stars can be found in wide binaries with projected separations between ∼10 ^2 and 10 ^5 au. In the standard lore of binary physics, these would evolve as effectively single stars that remotely orbit one another on stationary ...
Jakob Stegmann, Alejandro Vigna-Gómez, Antti Rantala, Tom Wagg, Lorenz Zwick, Mathieu Renzo, Lieke A. C. van Son, Selma E. de Mink, Simon D. M. White   +8 more
doaj   +1 more source

Improving H2RG Performance in SPHEREx Brassboard Model

The Astrophysical Journal Supplement Series
Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer is an upcoming NASA satellite mission to study the physics of inflation, the history of galaxy formation, and the abundance of biogenic ices in the Milky Way ...
Chi H. Nguyen, Phillip Korngut, C. Darren Dowell, James Bock, Jill Burnham, Samuel Condon, Walter Cook, Grigory Heaton, Howard Hui, Branislav Kecman, Hiromasa Miyasaka, Kenneth Manatt, Hien T. Nguyen, Stephen Padin, Marco Viero   +14 more
doaj   +1 more source