Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Yuxi Lucy Lu"'
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 170 (2024)
Reconstructing the mass assembly history of the Milky Way relies on obtaining detailed measurements of the properties of many stars in the galaxy, especially in the stellar halo. One of the most constraining quantities is stellar age, as it can shed
Externí odkaz:
https://doaj.org/article/114cd1e20c6548b2a4b23d023475363f
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 189 (2024)
For ongoing studies of the role of rotation in stellar evolution, we require large catalogs of rotation periods for testing and refining gyrochronology. While there is a wealth of data from the Kepler and K2 missions, the Transiting Exoplanet Survey
Externí odkaz:
https://doaj.org/article/b34b6b32058749e393df906424590e1a
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 159 (2024)
Gyrochronology, the field of age dating stars using mainly their rotation periods and masses, is ideal for inferring the ages of individual main-sequence stars. However, due to the lack of physical understanding of the complex magnetic fields in star
Externí odkaz:
https://doaj.org/article/88f83e226f0d4896984c11e21574a6da
Autor:
Emily C. Cunningham, Jason A. S. Hunt, Adrian M. Price-Whelan, Kathryn V. Johnston, Melissa K. Ness, Yuxi (Lucy) Lu, Ivanna Escala, Ioana A. Stelea
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 95 (2024)
The stellar stream connected to the Sagittarius (Sgr) dwarf galaxy is the most massive tidal stream that has been mapped in the Galaxy, and is the dominant contributor to the outer stellar halo of the Milky Way (MW). We present metallicity maps of th
Externí odkaz:
https://doaj.org/article/88cd17b25ac3497ea0c88ac466f617a3
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 515:L34-L38
Recovering the birth radii of observed stars in the Milky Way is one of the ultimate goals of Galactic Archaeology. One method to infer the birth radius and the evolution of the interstellar medium (ISM) metallicity assumes a linear relation between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e505c61e62e03bd21488b9c268a603ff
https://doi.org/10.1093/mnrasl/slac065
https://doi.org/10.1093/mnrasl/slac065
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 512:4697-4714
The present-day age–metallicity relation (AMR) is a record of the star formation history of galaxies, as this traces the chemical enrichment of the gas over time. We use a zoomed-in cosmological simulation that reproduces key signatures of the Milk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ed97d9a7aee8625b9312e41bf03e526
https://doi.org/10.1093/mnras/stac780
https://doi.org/10.1093/mnras/stac780
Autor:
Yuxi(Lucy) Lu, Ivan Minchev, Tobias Buck, Sergey Khoperskov, Matthias Steinmetz, Gabriele Cescutti, Kenneth Freeman
Stars move away from their birth places over time via a process known as radial migration, which blurs chemo-kinematic relations used for reconstructing the Milky Way formation history. One of the ultimate goals of Galactic Archaeology, therefore, is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2084f5b7d849f771eb7487cfe602dcba
https://doi.org/10.21203/rs.3.rs-2188219/v1
https://doi.org/10.21203/rs.3.rs-2188219/v1
The intermediate period gap, discovered by Kepler, is an observed dearth of stellar rotation periods in the temperature–period diagram at ∼20 days for G dwarfs and up to ∼30 days for early-M dwarfs. However, because Kepler mainly targeted solar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c7eac383cac2690075091e41ef2ce1c
Publikováno v:
The Astrophysical Journal. 933:241
Stellar variability is driven by a multitude of internal physical processes that depend on fundamental stellar properties. These properties are our bridge to reconciling stellar observations with stellar physics, and for understanding the distributio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf6b50c38984ed276d1749de871e0c2e
https://doi.org/10.3847/1538-4357/ac7563
https://doi.org/10.3847/1538-4357/ac7563
Autor:
Yuxi Lucy Lu, Gabriella Contardo, Samuel K. Grunblatt, Trevor J. David, Ruth Angus, Erik A. Petigura, Daniel Foreman-Mackey, Megan Bedell, Benjamin J. Fulton, J. L. Curtis, Angeli Sandoval
Publikováno v:
The Astronomical Journal. 161:265
The radius valley, a bifurcation in the size distribution of small, close-in exoplanets, is hypothesized to be a signature of planetary atmospheric loss. Such an evolutionary phenomenon should depend on the age of the star-planet system. In this work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34eb2877efe7aeb14943cec60ff778b7
https://doi.org/10.3847/1538-3881/abf439
https://doi.org/10.3847/1538-3881/abf439