Results 21 to 30 of about 167,903 (283)

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

Magellanic Clouds Cepheids: Thorium Abundances [PDF]

Journal of Astronomy and Space Sciences, 2018
The analysis of the high-resolution spectra of 31 Magellanic Clouds Cepheid variables enabled the identification of thorium lines. The abundances of thorium were found with spectrum synthesis method. The calculated thorium abundances exhibit correlations
Yeuncheol Jeong, Alexander V. Yushchenko, Vira F. Gopka, Volodymyr O. Yushchenko, Valery V. Kovtyukh, Svetlana V. Vasil’eva   +5 more
doaj   +1 more source

Microlensing towards the Large Magellanic Cloud [PDF]

Astronomy & Astrophysics, 2002
The nature and the location of the lenses discovered in the microlensing surveys done so far towards the LMC remain unclear. Motivated by these questions we compute the optical depth and particularly the number of expected events for self-lensing for both the MACHO and EROS2 observations.
Jetzer Ph., Mancini L., Scarpetta G.
openaire   +5 more sources

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
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

EMBEDDED CLUSTERS IN THE LARGE MAGELLANIC CLOUD USING THE VISTA MAGELLANIC CLOUDS SURVEY* [PDF]

The Astrophysical Journal, 2016
ABSTRACT We present initial results of the first large-scale survey of embedded star clusters in molecular clouds in the Large Magellanic Cloud (LMC) using near-infrared imaging from the Visible and Infrared Survey Telescope for Astronomy Magellanic Clouds Survey.
Krista Romita, Elizabeth Lada, Maria-Rosa Cioni   +2 more
openaire   +3 more sources

CCD imagers for the Transiting Exoplanet Survey Satellite from benchtop to space environment

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Abstract The Transiting Exoplanet Survey Satellite (TESS) is a Massachusetts Institute of Technology‐led NASA Explorer‐class mission planned to spend 2 years discovering transiting exoplanets by an all‐sky survey. The observatory contains four wide field‐of‐view camera systems for a total of 16.8 Megapixel, low‐noise, low‐power CCD detectors.
Vyshnavi Suntharalingam, Ilya Prigozhin, Keith Warner, Douglas Young, Deborah Woods, Gregory Berthiaume   +5 more
wiley   +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
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

LRO‐LAMP Lunar South Pole Cold Traps: Assessment of H2O and Potential CO2 and NH3 Reserves

Journal of Geophysical Research: Planets, Volume 128, Issue 8, August 2023., 2023
Abstract Nighttime Lyman Alpha Mapping Project (LAMP) observations are used to investigate condensed volatiles at the south polar region of the Moon. This study incorporates LAMP data from the first ∼7 years of the mission and Diviner annual maximum temperatures to search for volatile signatures associated with H2O, NH3, and CO2. Other stable potential
L. O. Magaña, K. D. Retherford, B. D. Byron, A. R. Hendrix, C. Grava, K. E. Mandt, U. Raut, E. Czajka, P. O. Hayne, D. M. Hurley, G. R. Gladstone, M. J. Poston, T. K. Greathouse, W. Pryor, J. T. Cahill, A. Stickle   +15 more
wiley   +1 more source