Zobrazeno 1 - 10
of 247
pro vyhledávání: '"KIM, STACY"'
Autor:
Danieli, Shany, Kado-Fong, Erin, Huang, Song, Luo, Yifei, Li, Ting S, Kelvin, Lee S, Leauthaud, Alexie, Greene, Jenny E., Mintz, Abby, Lin, Xiaojing, Li, Jiaxuan, Baldassare, Vivienne, Banerjee, Arka, Bhattacharyya, Joy, Blanco, Diana, Brooks, Alyson, Cai, Zheng, Chen, Xinjun, Cruz, Akaxia, Geda, Robel, Guan, Runquan, Johnson, Sean, Kannawadi, Arun, Kim, Stacy Y., Li, Mingyu, Lupton, Robert, Mace, Charlie, Medina, Gustavo E., Pan, Yue, Peter, Annika H. G., Read, Justin I., Rosado, Rodrigo Córdova, Seifert, Allen, Wasleske, Erik J., Wick, Joseph
We present the Merian Survey, an optical imaging survey optimized for studying the physical properties of bright star-forming dwarf galaxies. Merian is carried out with two medium-band filters ($N708$ and $N540$, centered at $708$ and $540$ nm), cust
Externí odkaz:
http://arxiv.org/abs/2410.01884
Autor:
Dropulic, Adriana, Shipp, Nora, Kim, Stacy, Mezghanni, Zeineb, Necib, Lina, Lisanti, Mariangela
In this work, we study how the abundance and dynamics of populations of disrupting satellite galaxies change systematically as a function of host galaxy properties. We apply a theoretical model of the phase-mixing process to classify intact satellite
Externí odkaz:
http://arxiv.org/abs/2409.13810
Autor:
Kim, Stacy Y., Read, Justin I., Rey, Martin P., Orkney, Matthew D. A., Nigudkar, Sushanta, Pontzen, Andrew, Taylor, Ethan, Agertz, Oscar, Das, Payel
The stellar-mass--halo-mass (SMHM) relation is central to our understanding of galaxy formation and the nature of dark matter. However, its normalisation, slope, and scatter are highly uncertain at dwarf galaxy scales. In this paper, we present DarkL
Externí odkaz:
http://arxiv.org/abs/2408.15214
Autor:
Muni, Claudia, Pontzen, Andrew, Read, Justin I., Agertz, Oscar, Rey, Martin P., Taylor, Ethan, Kim, Stacy Y., Gray, Emily I.
We study feedback-driven cold dark matter core creation in the EDGE suite of radiation-hydrodynamical dwarf galaxy simulations. Understanding this process is crucial when using observed dwarf galaxies to constrain the particle nature of dark matter.
Externí odkaz:
http://arxiv.org/abs/2407.14579
Autor:
Gray, Emily I., Read, Justin I., Taylor, Ethan, Orkney, Matthew D. A., Rey, Martin P., Yates, Robert M., Kim, Stacy Y., Noël, Noelia E. D., Agertz, Oscar, Andersson, Eric, Pontzen, Andrew
Nuclear Star Clusters (NSCs) are amongst the densest stellar systems in the Universe and are found at the centres of many bright spiral and elliptical galaxies, and up to ${\sim}$40% of dwarf galaxies. However, their formation mechanisms, and possibl
Externí odkaz:
http://arxiv.org/abs/2405.19286
Autor:
Rey, Martin P., Orkney, Matthew D. A., Read, Justin I., Das, Payel, Agertz, Oscar, Pontzen, Andrew, Ponomareva, Anastasia A., Kim, Stacy Y., McClymont, William
Low-mass dwarf galaxies are expected to reside within dark matter haloes that have a pristine, `cuspy' density profile within their stellar half-light radii. This is because they form too few stars to significantly drive dark matter heating through s
Externí odkaz:
http://arxiv.org/abs/2309.00041
Autor:
Goater, Alex, Read, Justin I., Noël, Noelia E. D., Orkney, Matthew D. A., Kim, Stacy Y., Rey, Martin P., Andersson, Eric P., Agertz, Oscar, Pontzen, Andrew, Vieliute, Roberta, Kataria, Dhairya, Jeneway, Kiah
Ultra-faint dwarf galaxies (UFDs) are commonly found in close proximity to the Milky Way and other massive spiral galaxies. As such, their projected stellar ellipticity and extended light distributions are often thought to owe to tidal forces. In thi
Externí odkaz:
http://arxiv.org/abs/2307.05130
Dark Matter (DM) properties at small scales remain uncertain. Recent theoretical and observational advances have provided the tools to narrow them down. Here, we show for the first time that the correlation between internal velocities and sizes of dw
Externí odkaz:
http://arxiv.org/abs/2306.04674
Autor:
Doliva-Dolinsky, Amandine, Martin, Nicolas F., Yuan, Zhen, Savino, Alessandro, Weisz, Daniel R., Ferguson, Annette M. N., Ibata, Rodrigo A., Kim, Stacy Y., Lewis, Geraint F., McConnachie, Alan W., Thomas, Guillaume F.
We build a statistical framework to infer the global properties of the satellite system of the Andromeda galaxy (M31) from the properties of individual dwarf galaxies located in the Pan-Andromeda Archaelogical Survey (PAndAS) and the previously deter
Externí odkaz:
http://arxiv.org/abs/2303.01528
Autor:
Orkney, Matthew D. A., Taylor, Ethan, Read, Justin I., Rey, Martin P., Pontzen, Andrew, Agertz, Oscar, Kim, Stacy Y., Delorme, Maxime
Collisionless Dark Matter Only (DMO) structure formation simulations predict that Dark Matter (DM) haloes are prolate in their centres and triaxial towards their outskirts. The addition of gas condensation transforms the central DM shape to be rounde
Externí odkaz:
http://arxiv.org/abs/2302.12818