Results 131 to 140 of about 370,839 (289)
The dynamics of Andromeda's dwarf galaxies and stellar streams [PDF]
, 2016 As part of the Z-PAndAS Keck II DEIMOS survey of resolved stars in our neighboring galaxy, Andromeda (M31), we have built up a unique data set of measured velocities and chemistries for thousands of stars in the Andromeda stellar halo, particularly probing its rich and complex substructure.
arxiv +1 more source
EVIDENCE FOR EARLY FILAMENTARY ACCRETION FROM THE ANDROMEDA GALAXY’S THIN PLANE OF SATELLITES [PDF]
, 2015 Recently it has been shown that a large fraction of the dwarf satellite galaxies orbiting the Andromeda galaxy are surprisingly aligned in a thin, extended, and kinematically coherent planar structure.
T. Buck, A. Macciò, A. Dutton
semanticscholar +1 more source
WATER MASERS IN THE ANDROMEDA GALAXY. I. A SURVEY FOR WATER MASERS, AMMONIA, AND HYDROGEN RECOMBINATION LINES [PDF]
, 2016 We report the results of a Green Bank Telescope survey for water masers, ammonia (1, 1) and (2, 2), and the H66α recombination line toward 506 luminous compact 24 μm emitting regions in the Andromeda Galaxy (M31).
J. Darling +3 more
semanticscholar +1 more source
Dynamics of the Halo of the Andromeda Galaxy M31 [PDF]
Symposium - International Astronomical Union, 2003 We present an investigation of the halo dynamics of M31 using planetary nebulae velocities. We have performed on-band [OIII] and off-band continuum imaging for a 3.6 square degree area centred on M31 and follow-up spectroscopy for over 600 planetary nebulae candidates.
Dave Carter +5 more
openaire +2 more sources
Ring or No Ring—Revisiting the Multiphase Nuclear Environment in M31
The Astrophysical JournalNuclear rings, prevalent in barred galaxies, are essential to understanding gas transport toward galactic nuclei. However, the peculiar nuclear ring in our neighboring galaxy M31 remains poorly understood.
Zongnan Li +11 more
doaj +1 more source
Galaxy Disruption in a Halo of Dark Matter
, 2003 The relics of disrupted satellite galaxies around the Milky Way and Andromeda have been found, but direct evidence of a satellite galaxy in the early stages of being disrupted has remained elusive.
Beasley, Michael +4 more
core +1 more source
The Astrophysical Journal, 2023 We present a photometric study of the resolved stellar populations in Andromeda IX (And IX), the closest satellite to M31, a metal-poor and low-mass dwarf spheroidal galaxy. We estimate a distance modulus of ${24.56}_{-0.15}^{+0.05}$ mag based on the tip
Hedieh Abdollahi +11 more
doaj +1 more source
, 2014 We study the gas distribution in the Milky Way and Andromeda using a constrained cosmological simulation of the Local Group (LG) within the context of the CLUES (Constrained Local UniversE Simulations) project.
Gottloeber, Stefan +5 more
core +1 more source
Star formation laws in the Andromeda galaxy: gas, stars, metals and the surface density of star formation [PDF]
, 2015 We use hierarchical Bayesian regression analysis to investigate star formation laws in the Andromeda galaxy (M31) in both local (30, 155, and 750pc) and global cases. We study and compare the well-known Kennicutt-Schmidt law, the extended Schmidt law and
S. Rahmani, S. Lianou, P. Barmby
semanticscholar +1 more source
The Panchromatic Hubble Andromeda Treasury. XXI. The Legacy Resolved Stellar Photometry Catalog
The Astrophysical Journal Supplement Series, 2023 We present the final legacy version of stellar photometry for the Panchromatic Hubble Andromeda Treasury (PHAT) survey. We have reprocessed all of the Hubble Space Telescope Wide Field Camera 3 and Advanced Camera for Surveys near-ultraviolet (F275W ...
Benjamin F. Williams +16 more
doaj +1 more source