Zobrazeno 1 - 10
of 371
pro vyhledávání: '"Zucker, Daniel"'
Autor:
D'Orazi, Valentina, Storm, Nicholas, Casey, Andrew R., Braga, Vittorio F., Zocchi, Alice, Bono, Giuseppe, Fabrizio, Michele, Sneden, Christopher, Massari, Davide, Giribaldi, Riano E., Bergemann, Maria, Campbell, Simon W., Casagrande, Luca, de Grijs, Richard, De Silva, Gayandhi, Lugaro, Maria, Zucker, Daniel B., Bragaglia, Angela, Feuillet, Diane, Fiorentino, Giuliana, Chaboyer, Brian, Dall'Ora, Massimo, Marengo, Massimo, Martínez-Vázquez, Clara E., Matsunaga, Noriyuki, Monelli, Matteo, Mullen, Joseph P., Nataf, David, Tantalo, Maria, Thevenin, Frederic, Vitello, Fabio R., Kudritzki, Rolf-Peter, Bland-Hawthorn, Joss, Buder, Sven, Freeman, Ken, Kos, Janez, Lewis, Geraint F., Lind, Karin, Martell, Sarah, Sharma, Sanjib, Stello, Dennis, Zwitter, Tomaž
Stellar mergers and accretion events have been crucial in shaping the evolution of the Milky Way (MW). These events have been dynamically identified and chemically characterised using red giants and main-sequence stars. RR Lyrae (RRL) variables can p
Externí odkaz:
http://arxiv.org/abs/2405.04580
Autor:
Hilmi, Tariq, Erkal, Denis, Koposov, Sergey E., Li, Ting S., Lilleengen, Sophia, Ji, Alexander P., Lewis, Geraint F., Shipp, Nora, Pace, Andrew B., Zucker, Daniel B., Limberg, Guilherme, Usman, Sam A.
In the cold dark matter paradigm, our Galaxy is predicted to contain >10000 dark matter subhaloes in the $10^5-10^8M_\odot$ range which should be completely devoid of stars. Stellar streams are sensitive to the presence of these subhaloes, which can
Externí odkaz:
http://arxiv.org/abs/2404.02953
Autor:
Yu, Fengqing, Li, Ting S., Speagle, Joshua S., Medina, Gustavo E., Koposov, Sergey E., Bland-Hawthorn, Joss, Cullinane, Lara R., Eadie, Gwendolyn M., Erkal, Denis, Lewis, Geraint F., Limberg, Guilherme, Zucker, Daniel B.
Blue Horizontal Branch (BHB) stars, excellent distant tracers for probing the Milky Way's halo density profile, are distinguished in the $(g-r)_0$ vs $(i-z)_0$ color space from another class of stars, blue straggler stars (BSs). We develop a Bayesian
Externí odkaz:
http://arxiv.org/abs/2402.00104
Autor:
Usman, Sam A., Ji, Alexander P., Li, Ting S., Pace, Andrew B., Cullinane, Lara R., Da Costa, Gary S., Koposov, Sergey E., Lewis, Geraint F., Zucker, Daniel B., Belokurov, Vasily, Bland-Hawthorn, Joss, Ferguson, Peter S., Hansen, Terese T., Limberg, Guilherme, Martell, Sarah L., McKenzie, Madeleine, Simon, Joshua D.
Milky Way globular clusters (GCs) display chemical enrichment in a phenomenon called multiple stellar populations (MSPs). While the enrichment mechanism is not fully understood, there is a correlation between a cluster's mass and the fraction of enri
Externí odkaz:
http://arxiv.org/abs/2401.02476
Autor:
Ardern-Arentsen, Anke, Monari, Giacomo, Queiroz, Anna B. A., Starkenburg, Else, Martin, Nicolas F., Chiappini, Cristina, Aguado, David S., Belokurov, Vasily, Carlberg, Ray, Monty, Stephanie, Myeong, GyuChul, Schultheis, Mathias, Sestito, Federico, Venn, Kim A., Vitali, Sara, Yuan, Zhen, Zhang, Hanyuan, Buder, Sven, Lewis, Geraint F., Oliver, William H., Wan, Zhen, Zucker, Daniel B.
The oldest stars in the Milky Way (born in the first few billion years) are expected to have a high density in the inner few kpc, spatially overlapping with the Galactic bulge. We use spectroscopic data from the Pristine Inner Galaxy Survey (PIGS) to
Externí odkaz:
http://arxiv.org/abs/2312.03847
Autor:
Manea, Catherine, Hawkins, Keith, Ness, Melissa K., Buder, Sven, Martell, Sarah L., Zucker, Daniel B.
The observed chemical diversity of Milky Way stars places important constraints on Galactic chemical evolution and the mixing processes that operate within the interstellar medium. Recent works have found that the chemical diversity of disk stars is
Externí odkaz:
http://arxiv.org/abs/2310.15257
Autor:
Pace, Andrew B., Koposov, Sergey E., Walker, Matthew G., Caldwell, Nelson, Mateo, Mario, Olszewski, Edward W., Roederer, Ian U., Bailey III, John I., Belokurov, Vasily, Kuehn, Kyler, Li, Ting S., Zucker, Daniel B.
We present Magellan/M2FS spectroscopy of four recently discovered Milky Way star clusters (Gran 3/Patchick~125, Gran 4, Garro 01, LP 866) and two newly discovered open clusters (Gaia 9, Gaia 10) at low Galactic latitudes. We measure line-of-sight vel
Externí odkaz:
http://arxiv.org/abs/2304.06904
Autor:
Koposov, Sergey E., Erkal, Denis, Li, Ting S., Da Costa, Gary S., Cullinane, Lara R., Ji, Alexander P., Kuehn, Kyler, Lewis, Geraint F., Pace, Andrew B., Shipp, Nora, Zucker, Daniel B., Bland-Hawthorn, Joss, Lilleengen, Sophia, Martell, Sarah L.
We present a 6-D map of the Orphan-Chenab (OC) stream by combining the data from Southern Stellar Stream Spectroscopic Survey ($S^5$) and {\it Gaia}. We reconstruct the proper motion, radial velocity, distance, on-sky track and stellar density along
Externí odkaz:
http://arxiv.org/abs/2211.04495
Autor:
Shipp, Nora, Panithanpaisal, Nondh, Necib, Lina, Sanderson, Robyn, Erkal, Denis, Li, Ting S., Santistevan, Isaiah B., Wetzel, Andrew, Cullinane, Lara R., Ji, Alexander P., Koposov, Sergey E., Kuehn, Kyler, Lewis, Geraint F., Pace, Andrew B., Zucker, Daniel B., Bland-Hawthorn, Joss, Cunningham, Emily C., Kim, Stacy Y., Lilleengen, Sophia, Moreno, Jorge, Sharma, Sanjib
We present the first detailed study comparing the populations of stellar streams in cosmological simulations to observed Milky Way dwarf galaxy streams. In particular, we compare streams identified around Milky Way analogs in the FIRE-2 simulations t
Externí odkaz:
http://arxiv.org/abs/2208.02255
Autor:
Lilleengen, Sophia, Petersen, Michael S., Erkal, Denis, Peñarrubia, Jorge, Koposov, Sergey E., Li, Ting S., Cullinane, Lara R., Ji, Alexander P., Kuehn, Kyler, Lewis, Geraint F., Mackey, Dougal, Pace, Andrew B., Shipp, Nora, Zucker, Daniel B., Bland-Hawthorn, Joss, Hilmi, Tariq
It has recently been shown that the Large Magellanic Cloud (LMC) has a substantial effect on the Milky Way's stellar halo and stellar streams. Here, we explore how deformations of the Milky Way and LMC's dark matter haloes affect stellar streams, and
Externí odkaz:
http://arxiv.org/abs/2205.01688