Implications of the Milky Way Travel Velocity for Dynamical Mass Estimates of the Local Group
The Astrophysical Journal, 2022 The total mass of the Local Group (LG) is a fundamental quantity that enables interpreting the orbits of its constituent galaxies and placing the LG in a cosmological context.
Katie Chamberlain +6 more
doaj +1 more source
New emission line at ~3.5 keV - observational status, connection with radiatively decaying dark matter and directions for future studies [PDF]
, 2014 Recent works of [1402.2301,1402.4119], claiming the detection of extra emission line with energy ~3.5 keV in X-ray spectra of certain clusters of galaxies and nearby Andromeda galaxy, have raised considerable interest in astrophysics and particle physics
Iakubovskyi, Dmytro
core +2 more sources
Unravelling stellar populations in the Andromeda Galaxy [PDF]
, 2021 Grzegorz Gajda +6 more
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The Astrophysical Journal, 2023 We present spectroscopic chemical abundances of red giant branch stars in Andromeda (M31), using medium-resolution ( R ∼ 6000) spectra obtained via the Spectroscopic and Photometric Landscape of Andromeda’s Stellar Halo survey.
J. Leigh Wojno +8 more
doaj +1 more source
A dynamical model of the local cosmic expansion
, 2014 We combine the equations of motion that govern the dynamics of galaxies in the local volume with Bayesian techniques in order to fit orbits to published distances and velocities of galaxies within $\sim 3$ Mpc. We find a Local Group (LG) mass $2.3\pm 0.7\
Ma, Yin-Zhe +3 more
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MOCCA-Survey Database: extra galactic globular clusters – III. The population of black holes in Milky Way and Andromeda-like galaxies [PDF]
, 2023 Agostino Leveque +4 more
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New luminous blue variables in the Andromeda galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We performed spectroscopy of five Luminous Blue Variable (LBV) candidates and two known LBV stars (AE And and Var A-1) in M31. We obtained the same-epoch near-infrared (NIR) and optical spectra of these stars. The NIR spectra were taken with Triplespec spectrograph at the 3.5-m telescope at Apache Point Observatory, and the optical spectroscopy was ...
Sholukhova O. +5 more
openaire +4 more sources
The Panchromatic Hubble Andromeda Treasury. XX. The Disk of M31 is Thick
The Astronomical Journal, 2023 We present a new approach to measuring the thickness of a partially face-on stellar disk, using dust geometry. In a moderately-inclined disk galaxy, the fraction of reddened stars is expected to be 50% everywhere, assuming that dust lies in a thin ...
Julianne J. Dalcanton +8 more
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A Deep Photometric Look at Two of Andromeda's Dwarf Spheroidals: X and XVII
, 2011 We use deep wide-field photometry from the Large Binocular Camera to study the stellar and structural properties of the recently discovered Andromeda X and Andromeda XVII (And X and And XVII) dwarf galaxies.
Alan W. McConnachie +20 more
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On the Co-orbitation of Satellite Galaxies along the Great Plane of Andromeda: NGC 147, NGC 185, and Expectations from Cosmological Simulations [PDF]
, 2021 Marcel S. Pawlowski, Sangmo Tony Sohn
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