Zobrazeno 1 - 10
of 1 755
pro vyhledávání: '"Rosemary, F."'
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:
Ogami, Itsuki, Tanaka, Mikito, Komiyama, Yutaka, Chiba, Masashi, Guhathakurta, Puragra, Kirby, Evan N., Wyse, Rosemary F. G., Filion, Carrie, Gilbert, Karoline M., Escala, Ivanna, Mori, Masao, Kirihara, Takanobu, Tanaka, Masayuki, Ishigaki, Miho N., Hayashi, Kohei, Lee, Myun Gyoon, Sharma, Sanjib, Kalirai, Jason S., Lupton, Robert H.
We analyse the M31 halo and its substructure within a projected radius of 120 kpc using a combination of Subaru/HSC NB515 and CFHT/MegaCam g- & i-bands. We succeed in separating M31's halo stars from foreground contamination with $\sim$ 90 \% accurac
Externí odkaz:
http://arxiv.org/abs/2401.00668
Publikováno v:
BMC Medical Education, Vol 24, Iss 1, Pp 1-21 (2024)
Abstract Background Simulation-Based Learning (SBL) serves as a valuable pedagogical approach in nursing education, encompassing varying levels of fidelity. While previous reviews have highlighted the potential effectiveness of SBL in enhancing nursi
Externí odkaz:
https://doaj.org/article/99854b1de4504573a70c4a2efa7fee93
Autor:
Hayashi, Kohei, Dobos, Laszlo, Filion, Carrie, Kirby, Evan, Chiba, Masashi, Wyse, Rosemary F. G., Group, PFS Galactic Archaeology Science Working
The Galactic dwarf spheroidal galaxies (dSphs) provide valuable insight into dark matter (DM) properties and its role in galaxy formation. Their close proximity enables the measurement of line-of-sight velocities for resolved stars, which allows us t
Externí odkaz:
http://arxiv.org/abs/2305.11309
Publikováno v:
Cogent Education, Vol 11, Iss 1 (2024)
Amid an influx of unemployed graduates who are offloaded by tertiary institutions annually, this study sought to promote job creation through entrepreneurial practices. The study criticises the notion that only tertiary education is enough for econom
Externí odkaz:
https://doaj.org/article/e405dee5b7b44c63bc1b7b8df5103d58