Results 101 to 110 of about 842,086 (198)

The Magellanic Stream in Modified Newtonian Dynamics [PDF]

The Astrophysical Journal, 2006
The dynamics of the Magellanic Stream (MS) as a series of clouds extending from the Magellanic Clouds (MCs) to the south Galactic pole is affected by the distribution and the amount of matter in the Milky Way. We calculate the gravitational effect of the Galactic disk on the MS in the framework of modified Newtonian dynamics(MOND) and compare with ...
Hossein Haghi, Sohrab Rahvar, Akram Hasani-Zonooz   +2 more
openaire   +3 more sources

The Multiple Extended Tidal Tails of NGC 288

The Astrophysical Journal
Using photometry and proper motions from Pan-STARRS, DECaLS, and Gaia Data Release 3, we detect a ∼35°–70° long trailing stellar debris stream associated with the globular cluster NGC 288.
Carl J. Grillmair
doaj   +1 more source

The detection of an older population in the Magellanic Bridge [PDF]

, 2012
The Magellanic system comprises the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC), and the less frequently observed Magellanic Bridge and Magellanic Stream. The Bridge is traced by neutral gas and has an observed stellar component, while the Stream consists of gas only, with no observed stellar counterpart to date.
arxiv   +1 more source

A Neutral Hydrogen Absorption Study of Cold Gas in the Outskirts of the Magellanic Clouds Using the GASKAP-H i Survey

The Astronomical Journal
Cold neutral hydrogen (H i ) is a crucial precursor for molecular gas formation and can be studied via H i absorption. This study investigates H i absorption in low column density regions of the Small and Large Magellanic Clouds (SMC and LMC) using the ...
Hongxing Chen, Snežana Stanimirović, Nickolas M. Pingel, James Dempsey, Frances Buckland-Willis, Susan E. Clark, Helga Dénes, John M. Dickey, Steven Gibson, Katherine Jameson, Ian Kemp, Denis Leahy, Min-Young Lee, Callum Lynn, Yik Ki Ma, N. M. McClure-Griffiths, Claire E. Murray, Hiep Nguyen, Lucero Uscanga, Jacco Th. van Loon, Enrique Vázquez-Semadeni   +20 more
doaj   +1 more source

Streams, Shells, and Substructures in the Accretion-built Stellar Halo of NGC 300

The Astrophysical Journal Letters
We present deep optical observations of the stellar halo of NGC 300, an LMC-mass galaxy, acquired with the DEEP subcomponent of the DECam Local Volume Exploration survey using the 4 m Blanco Telescope.
Catherine E. Fielder, David J. Sand, Michael G. Jones, Denija Crnojević, Alex Drlica-Wagner, Paul Bennet, Jeffrey L. Carlin, William Cerny, Amandine Doliva-Dolinsky, Laura C. Hunter, Ananthan Karunakaran, Guilherme Limberg, Burçin Mutlu-Pakdil, Andrew B. Pace, Sarah Pearson, Adam Smercina, Kristine Spekkens, Tjitske Starkenburg, Jay Strader, Guy S. Stringfellow, Erik Tollerud, Clecio R. Bom, Julio A. Carballo-Bello, Astha Chaturvedi, Yumi Choi, David J. James, Clara E. Martínez-Vázquez, Alexander H. Riley, Joanna Sakowska, Kathy Vivas   +29 more
doaj   +1 more source

Charting the Galactic Acceleration Field. II. A Global Mass Model of the Milky Way from the STREAMFINDER Atlas of Stellar Streams Detected in Gaia DR3

The Astrophysical Journal
We present an atlas and follow-up spectroscopic observations of 87 thin stream-like structures detected with the STREAMFINDER algorithm in Gaia DR3, of which 28 are new discoveries.
Rodrigo Ibata, Khyati Malhan, Wassim Tenachi, Anke Ardern-Arentsen, Michele Bellazzini, Paolo Bianchini, Piercarlo Bonifacio, Elisabetta Caffau, Foivos Diakogiannis, Raphael Errani, Benoit Famaey, Salvatore Ferrone, Nicolas F. Martin, Paola di Matteo, Giacomo Monari, Florent Renaud, Else Starkenburg, Guillaume Thomas, Akshara Viswanathan, Zhen Yuan   +19 more
doaj   +1 more source

The galactic wake model of the Magellanic Stream [PDF]

Symposium - International Astronomical Union, 1979
Tidal interaction models for the origin of the Magellanic Stream have been fairly successful in reproducing the radial velocities of the Stream (Lin and Lynden-Bell 1977, Davies and Wright 1977). However, no investigator has yet attained a self consistent treatment in which (1) the LMC and SMC are bound for at least 5×109 yr, (2) the passing Magellanic
openaire   +2 more sources

Identifying Galactic Substructures in 5D Space Using All-sky RR Lyrae Stars in Gaia DR3

The Astrophysical Journal
Motivated by the vast gap between photometric and spectroscopic data volumes, there is great potential in using 5D kinematic information to identify and study substructures of the Milky Way.
Shenglan Sun, Fei Wang, Huawei Zhang, Xiang-Xiang Xue, Yang Huang, Ruizhi Zhang, Hans-Walter Rix, Xinyi Li, Gaochao Liu, Lan Zhang, Chengqun Yang, Shuo Zhang   +11 more
doaj   +1 more source

Geometrodynamical Distances to the Galaxy's Hydrogen Streams [PDF]

, 2007
We present a geometrodynamical method for determining distances to orbital streams of HI gas in the Galaxy. The method makes use of our offset from the Galactic centre and assumes that the gas comprising the stream nearly follows a planar orbit about the Galactic centre.
arxiv   +1 more source

Magellanic streams in 4D

, 2019
The Large and Small Magellanic Clouds are a pair of nearby, likely rather massive dwarf galaxies. Located at 50 and 60 kpc from us, at the moment well within the halo of the Milky Way, the LMC and the SMC are believed to be the satellites of our Galaxy.
openaire   +3 more sources