Zobrazeno 1 - 10
of 10 686
pro vyhledávání: '"Wyse, A."'
Autor:
Temfack, Dhorasso, Wyse, Jason
Sequential Monte Carlo methods are a powerful framework for approximating the posterior distribution of a state variable in a sequential manner. They provide an attractive way of analyzing dynamic systems in real-time, taking into account the limitat
Externí odkaz:
http://arxiv.org/abs/2408.15739
Autor:
Wyse, Sarah K., Foxall, Eric
Publikováno v:
J. Stat. Mech. (2024) 113403
The extent to which committed minorities can overturn social conventions is an active area of research in the mathematical modelling of opinion dynamics. Researchers generally use simulations of agent-based models (ABMs) to compute approximate values
Externí odkaz:
http://arxiv.org/abs/2407.20451
Autor:
Dobos, László, Szalay, Alexander S., Budavári, Tamás, Kirby, Evan N., Lupton, Robert H., Wyse, Rosemary F. G.
Massively multiplexed spectrographs will soon gather large statistical samples of stellar spectra. The accurate estimation of uncertainties on derived parameters, such as line-of-sight velocity $v_\mathrm{los}$, especially for spectra with low signal
Externí odkaz:
http://arxiv.org/abs/2407.14943
Autor:
Ogami, Itsuki, Komiyama, Yutaka, Chiba, Masashi, Tanaka, Mikito, Guhathakurta, Puragra, Kirby, Evan N., Wyse, Rosemary F. G., Filion, Carrie, Kirihara, Takanobu, Ishigaki, Miho N., Hayashi, Kohei
We report the detection of a dwarf satellite candidate (Triangulum IV: Tri IV) of the Triangulum galaxy (M33) using the deep imaging of Subaru/Hyper Suprime-Cam (HSC). From the apparent magnitude of the horizontal branch in Tri IV, the heliocentric d
Externí odkaz:
http://arxiv.org/abs/2407.07481
Autor:
Nelson, Tyler, Hawkins, Keith, Reggiani, Henrique, Garza, Diego, Wyse, Rosemary F. G., Woody, Turner
Two decades on, the study of hypervelocity stars is still in its infancy. These stars can provide novel constraints on the total mass of the Galaxy and its Dark Matter distribution. However how these stars are accelerated to such high velocities is u
Externí odkaz:
http://arxiv.org/abs/2407.02593
Autor:
Rix, Hans-Walter, Chandra, Vedant, Zasowski, Gail, Pillepich, Annalisa, Khoperskov, Sergey, Feltzing, Sofia, Wyse, Rosemary F., Frankel, Neige, Horta, Danny, Kollmeier, Juna, Stassun, Keivan G., Ness, Melissa, Bird, Jonathan C., Nidever, David L., Fernandez, Jose G., Amarante, João A., Laporte, Chervin F., Lian, Jianhui
We show with Gaia XP spectroscopy that extremely metal-rich stars in the Milky Way (EMR; $[M/H]_{XP} > 0.5$) - but only those - are largely confined to a tight "knot" at the center of the Galaxy. This EMR knot is round in projection, has a fairly abr
Externí odkaz:
http://arxiv.org/abs/2406.01706
Autor:
Filion, Carrie, Wyse, Rosemary F. G., Richstein, Hannah, Kallivayalil, Nitya, van der Marel, Roeland P., Sacchi, Elena
Publikováno v:
ApJ, 967, 165 (2024)
The stellar initial mass function (IMF) describes the distribution of stellar masses that form in a given star formation event. The long main-sequence lifetimes of low-mass stars mean that the IMF in this regime (below $\sim 1 \rm{M}_\odot$) can be i
Externí odkaz:
http://arxiv.org/abs/2404.11571
Autor:
Ogami, Itsuki, Komiyama, Yutaka, Chiba, Masashi, Tanaka, Mikito, Guhathakurta, Puragra, Kirby, Evan N., Wyse, Rosemary F. G., Filion, Carrie, Kirihara, Takanobu, Ishigaki, Miho N., Hayashi, Kohei
We analyze the outer regions of M33, beyond 15 kpc in projected distance from its center using Subaru/HSC multi-color imaging. We identify Red Giant Branch (RGB) stars and Red Clump (RC) stars using the surface gravity sensitive $NB515$ filter for th
Externí odkaz:
http://arxiv.org/abs/2403.14234
Autor:
Dempsey, Daniel, Wyse, Jason
Distributed Lag Models (DLMs) and similar regression approaches such as MIDAS have been used for many decades in econometrics, and more recently in the study of air quality and its impact on human health. They are useful not only for quantifying accu
Externí odkaz:
http://arxiv.org/abs/2403.03646
Insights from JWST observations suggest that AGN feedback evolved from a short-lived, high redshift phase in which radiatively cooled turbulence and/or momentum-conserving outflows stimulated vigorous early star formation (``positive'' feedback), to
Externí odkaz:
http://arxiv.org/abs/2401.02482