Results 41 to 50 of about 51,668 (266)
On the Gamma-Ray Emission of the Andromeda Galaxy M31
The Astrophysical Journal Letters, 2023 Using the γ -ray data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (Fermi) for ∼14 yr, we examine the high-energy emission emanating from the center of the Andromeda galaxy M31.
Yi Xing +3 more
doaj +1 more source
, 2012 We study the future orbital evolution and merging of the MW-M31-M33 system, using a combination of collisionless N-body simulations and semi-analytic orbit integrations.
Anderson, Jay +4 more
core +1 more source
Dynamical Mass Estimates for the Halo of M31 from Keck Spectroscopy [PDF]
, 2000 The last few months have seen the measurements of the radial velocities of all of the dwarf spheroidal companions to the Andromeda galaxy (M31) using the spectrographs (HIRES and LRIS) on the Keck Telescope.
Eva K. Grebel +7 more
core +2 more sources
DOUBLE MODE CEPHEIDS IN M31 [PDF]
The Astrophysical Journal, 2013 submitted to ...
openaire +2 more sources
Constraints on the Formation of M31’s Stellar Halo from the SPLASH Survey
Galaxies, 2017 The SPLASH (Spectroscopic and Photometric Landscape of Andromeda’s Stellar Halo) Survey has observed fields throughout M31’s stellar halo, dwarf satellites, and stellar disk.
Karoline Gilbert
doaj +1 more source
Searching for New Globular Clusters in M31 with Gaia EDR3
The Astrophysical Journal, 2023 We have found 50 new globular cluster (GC) candidates around M31 with Gaia Early Data Release 3 (EDR3), with the help of Pan-STARRS1 DR1 magnitudes and Pan-Andromeda Archaeological Survey (PAndAS) images.
Yilun Wang +7 more
doaj +1 more source
The Spatial and Emission Properties of the Large [O iii] Emission Nebula Near M31
The Astrophysical Journal, 2023 Drechsler et al. reported the unexpected discovery of a 1.°5 long [O iii ] emission nebula 1.°2 southeast of the M31 nucleus. Here we present additional images of this large emission arc, called the Strottner–Drechsler–Sainty Object (SDSO), along with ...
Robert A. Fesen +10 more
doaj +1 more source
Abundances of Disk Planetary Nebulae in M31 and the Radial Oxygen Gradient
, 2011 We have obtained spectra of 16 planetary nebulae in the disk of M31 and determined the abundances of He, N, O, Ne, S and Ar. Here we present the median abundances and compare them with previous M31 PN disk measurements and with PNe in the Milky Way.
Balick, B. +3 more
core +1 more source
American Journal of Biological Anthropology, Volume 189, Issue 4, April 2026.ABSTRACT Objectives The current Caribbean Colombian population is the result of migration processes and admixture that occurred throughout the country's history. The aim of this study was to investigate genetic ancestry gradients throughout the Caribbean territory, with a higher Native American ancestry expected in inland areas compared to coastal ...
Masinda Nguidi +8 more
wiley +1 more source
Probing the Disk Kinematics of M31 with DESI
Edinburgh Student Journal of ScienceM31’s stellar rotation curve and disk line-of-sight dispersion is presented using kinematic data from a novel DESI M31 survey in combination with similar datasets.
Struan Stevenson
doaj +1 more source