Results 1 to 10 of about 133,581 (100)

Measuring the Mass of the Large Magellanic Cloud with Stellar Streams Observed by S 5 [PDF]

Astrophysical Journal, 2021
Stellar streams are excellent probes of the underlying gravitational potential in which they evolve. In this work, we fit dynamical models to five streams in the Southern Galactic hemisphere, combining observations from the Southern Stellar Stream ...
N. Shipp, D. Erkal, A. Drlica-Wagner, Ting S. Li, A. Pace, Sergey E. Koposov, L. Cullinane, G. Costa, A. Ji, K. Kuehn, G. Lewis, D. Mackey, J. Simpson, Z. Wan, D. Zucker, J. Bland-Hawthorn, P. Ferguson, Sophia Lilleengen, Sdss Collaboration   +18 more
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The EMU view of the Large Magellanic Cloud: troubles for sub-TeV WIMPs [PDF]

Journal of Cosmology and Astroparticle Physics, 2021
We present a radio search for WIMP dark matter in the Large Magellanic Cloud (LMC). We make use of a recent deep image of the LMC obtained from observations of the Australian Square Kilometre Array Pathfinder (ASKAP), and processed as part of the ...
M. Regis, Javier Reynoso-Cordova, M. Filipovi'c, Marcus Brüggen, E. Carretti, J. Collier, A. Hopkins, E. Lenc, U. Maio, J. Marvil, R. Norris, T. Vernstrom   +11 more
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Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond ΛCDM [PDF]

Astrophysical Journal, 2019
We present an improved determination of the Hubble constant from Hubble Space Telescope (HST) observations of 70 long-period Cepheids in the Large Magellanic Cloud (LMC).
A. Riess, S. Casertano, W. Yuan, L. Macri, D. Scolnic   +4 more
semanticscholar   +1 more source

A distance to the Large Magellanic Cloud that is precise to one per cent [PDF]

Nature, 2019
In the era of precision cosmology, it is essential to determine the Hubble constant empirically with an accuracy of one per cent or better1. At present, the uncertainty on this constant is dominated by the uncertainty in the calibration of the Cepheid ...
G. Pietrzyński, D. Graczyk, D. Graczyk, A. Gallenne, A. Gallenne, W. Gieren, I. Thompson, B. Pilecki, P. Karczmarek, M. Górski, K. Suchomska, M. Taormina, B. Zgirski, P. Wielgórski, Z. Kołaczkowski, P. Konorski, S. Villanova, N. Nardetto, P. Kervella, F. Bresolin, R. Kudritzki, J. Storm, R. Smolec, W. Narloch   +23 more
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The total mass of the Large Magellanic Cloud from its perturbation on the Orphan stream [PDF]

Monthly notices of the Royal Astronomical Society, 2018
In a companion paper by Koposov et al., RR Lyrae from Gaia Data Release 2 are used to demonstrate that stars in the Orphan stream have velocity vectors significantly misaligned with the stream track, suggesting that it has received a large gravitational ...
D. Erkal, V. Belokurov, C. Laporte, Sergey E. Koposov, T. Li, C. Grillmair, N. Kallivayalil, A. Price-Whelan, N. Evans, K. Hawkins, D. Hendel, C. Mateu, J. Navarro, A. Pino, C. Slater, S. Sohn   +15 more
semanticscholar   +1 more source

Consistent Calibration of the Tip of the Red Giant Branch in the Large Magellanic Cloud on the Hubble Space Telescope Photometric System and a Redetermination of the Hubble Constant [PDF]

Astrophysical Journal, 2019
We present a calibration of the tip of the red giant branch (TRGB) in the Large Magellanic Cloud (LMC) on the Hubble Space Telescope (HST)/ACS F814W system.
W. Yuan, A. Riess, L. Macri, S. Casertano, D. Scolnic   +4 more
semanticscholar   +1 more source

Quantifying the Impact of the Large Magellanic Cloud on the Structure of the Milky Way’s Dark Matter Halo Using Basis Function Expansions [PDF]

Astrophysical Journal, 2020
Indications of disequilibrium throughout the Milky Way (MW) highlight the need for compact, flexible, non-parametric descriptions of phase–space distributions of galaxies.
N. Garavito-Camargo, G. Besla, C. Laporte, A. Price-Whelan, E. Cunningham, K. Johnston, M. Weinberg, F. Gómez   +7 more
semanticscholar   +1 more source

The MACHO Project: Microlensing Results from 5.7 Years of Large Magellanic Cloud Observations [PDF]

, 2000
We report on our search for microlensing toward the Large Magellanic Cloud (LMC). Analysis of 5.7 yr of photometry on 11.9 million stars in the LMC reveals 13-17 microlensing events.
C. Alcock, C. Alcock, R. Allsman, D. Alves, T. Axelrod, A. Becker, D. Bennett, D. Bennett, K. Cook, K. Cook, N. Dalal, N. Dalal, A. Drake, A. Drake, K. Freeman, M. Geha, K. Griest, K. Griest, M. Lehner, S. Marshall, S. Marshall, D. Minniti, C. Nelson, C. Nelson, B. Peterson, P. Popowski, M. Pratt, P. Quinn, C. Stubbs, C. Stubbs, C. Stubbs, W. Sutherland, A. Tomaney, T. Vandehei, T. Vandehei, D. Welch   +35 more
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Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our interpretation of the spectral energy distribution of galaxies, cosmic dust production, and enrichment of the ...
G. Pastorelli, P. Marigo, L. Girardi, B. Aringer, Yang Chen, S. Rubele, M. Trabucchi, S. Bladh, M. Boyer, A. Bressan, J. Dalcanton, M. Groenewegen, T. Lebzelter, N. Mowlavi, K. Chubb, M. Cioni, R. de Grijs, V. Ivanov, A. Nanni, J. T. van Loon, S. Zaggia   +20 more
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Reflex motion in the Milky Way stellar halo resulting from the Large Magellanic Cloud infall [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2020
We present the results of N-body models of the Milky Way and Large Magellanic Cloud system and study the kinematic reflex motion in the stellar halo owing to the barycentre displacement of the disc.
M. Petersen, J. Peñarrubia
semanticscholar   +1 more source