Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Kathryne J Daniel"'
Autor:
Behzad Tahmasebzadeh, Shashank Dattathri, Monica Valluri, Juntai Shen, Ling Zhu, Vance Wheeler, Ortwin Gerhard, Sandeep Kumar Kataria, Leandro Beraldo e Silva, Kathryne J. Daniel
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 120 (2024)
Barred galaxies exhibit boxy/peanut or X-shapes (BP/X) protruding from their disks in edge-on views. Two types of BP/X morphologies exist depending on whether the X-wings meet at the center (CX) or are off-centered (OX). Orbital studies indicate that
Externí odkaz:
https://doaj.org/article/6bcbc12829a9492997078cb346d9e3d0
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 1, p 76 (2023)
Recent space-based missions have ushered in a new era of observational astronomy, where high-cadence photometric light curves for thousands to millions of stars in the solar neighborhood can be used to test and apply stellar age-dating methods, inclu
Externí odkaz:
https://doaj.org/article/d2bde3836e3f4e7c95a51c2d1d3bcd12
Autor:
Leandro Beraldo e Silva, Victor P. Debattista, Stuart Robert Anderson, Monica Valluri, Peter Erwin, Kathryne J. Daniel, Nathan Deg
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 1, p 38 (2023)
Many barred galaxies exhibit upturns (shoulders) in their bar-major-axis density profile. Simulation studies have suggested that shoulders are supported by looped x _1 orbits, occur in growing bars, and can appear after bar buckling. We investigate t
Externí odkaz:
https://doaj.org/article/44036d7fbfa348caa1b1117317be00f9
Autor:
Tigran Khachaturyants, Victor P Debattista, Soumavo Ghosh, Leandro Beraldo e Silva, Kathryne J Daniel
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 517:L55-L59
We measure and compare the pattern speeds of vertical breathing, vertical bending, and spiral density waves in two isolated N-body+SPH simulations, using windowed Fourier transforms over 1 Gyr time intervals. We show that the pattern speeds of the br
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16430e0c96c84e36ba9ef0de7561118a
https://doi.org/10.1093/mnrasl/slac112
https://doi.org/10.1093/mnrasl/slac112
Autor:
Maui Hudson, Stephanie Russo Carroll, Jeff Atencio, Kat Gardner-Vandy, Lauren M. Seyler, Daniella Scalice, Michael S. Kirk, Jodie Williams, Dominique M David-Chavez, Eddie Gonzales, George Gorospe, Jane Anderson, Jackie Goordial, Annette Lee, Carole Cadue-Blackwood, Jonathan Waterhouse, Timothy J. McCoy, Alice Carron, Juan Carlos Chavez, Joseph Yracheta, Kathryne J. Daniel, Nathalie A. Cabrol
Publikováno v:
Bulletin of the AAS. 53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4db6bccc6cde209973372912047658b1
https://doi.org/10.3847/25c2cfeb.0de1af1a
https://doi.org/10.3847/25c2cfeb.0de1af1a
It is widely accepted that stars in a spiral disk, like the Milky Way's, can radially migrate on order a scale length over the disk's lifetime. With the exception of cold torquing, also known as "churning," processes that contribute to the radial mig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ca77bec7c2548c021eff5308440dd53
Publikováno v:
Daniel, K J, Heggie, D C & Varri, A L 2017, ' An approximate analytic model of a star cluster with potential escapers ', Monthly Notices of the Royal Astronomical Society, vol. 468, no. 2, pp. 1453-1473 . https://doi.org/10.1093/mnras/stx571
Monthly Notices of the Royal Astronomical Society
NASA Astrophysics Data System
Monthly Notices of the Royal Astronomical Society
NASA Astrophysics Data System
In the context of a star cluster moving on a circular galactic orbit, a "potential escaper" is a cluster star that has orbital energy greater than the escape energy, and yet is confined within the Jacobi radius of the stellar system. On the other han
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91e1bcfd748ae2bc3c608762b308439c
https://www.pure.ed.ac.uk/ws/files/75431159/1703.04548.pdf
https://www.pure.ed.ac.uk/ws/files/75431159/1703.04548.pdf
Publikováno v:
The Astrophysical Journal. 613:393-415
A 96-ks Chandra X-ray observation of rho Ophiuchus cloud core A detected 87 sources, of which 60 were identified with counterparts at other wavelengths. The X-ray detections include 12 of 14 known classical T Tauri stars in the field, 15 of 17 known
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57adc7dc3e4cbcfd3182856dcd96e7b7
https://doi.org/10.1086/422828
https://doi.org/10.1086/422828
Publikováno v:
The Astrophysical Journal. 578:486-502
We present the analysis of a 38.4 ks and a 23.6 ks observation of the core of the Pleiades open cluster. The Advanced CCD Imaging Spectrometer on board the Chandra X-ray Observatory detected 99 X-ray sources in a 17'X17' region, including 18 of 23 Pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2df4055790204e50b8b65b8c3670cad9
https://doi.org/10.1086/340553
https://doi.org/10.1086/340553
Near the corotation resonance of a transient spiral arm, stellar orbital angular momenta may be changed without inducing significant kinematic heating, resulting in what has come to be known as radial migration. When radial migration is very efficien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c1d68f33ad42ba85e9f935ce66e1a0e