Results 41 to 50 of about 370,839 (289)
Ultra high energy cosmic rays from past activity of Andromeda galaxy [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2022 It is shown that the relativistic jets associated with the growth and past activity of the supermassive black hole in the Andromeda galaxy could be the main source of cosmic rays with energies above 1015 eV.
V. Zirakashvili, V. Ptuskin, S. Rogovaya
semanticscholar +1 more source
Metallicity distribution of the progenitor of the Giant Stellar Stream in the Andromeda Galaxy [PDF]
, 2022 The Giant Stellar Stream (GSS) is a prominent tidal feature in the halo of the Andromeda Galaxy (M31), representing the ongoing destruction of a satellite galaxy.
Stanislav Milovsevi'c +2 more
semanticscholar +1 more source
The HASHTAG Project: The First Submillimeter Images of the Andromeda Galaxy from the Ground [PDF]
Astrophysical Journal Supplement Series, 2021 Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, the brightness is significantly reduced at long submillimeter wavelengths compared to the brightness at the peak of the dust emission.
Matthew W. L. Smith +48 more
semanticscholar +1 more source
Simultaneous Deep Measurements of CO Isotopologues and Dust Emission in Giant Molecular Clouds in the Andromeda Galaxy [PDF]
Astrophysical Journal, 2021 We present simultaneous measurements of emission from dust continuum at 230 GHz and the J = 2–1 12CO, 13CO, and C18O isotopologues at ∼15 pc resolution from individual giant molecular clouds (GMCs) in the Andromeda galaxy (M31).
S. Viaene +4 more
semanticscholar +1 more source
Universe, 2023 Eicheon properties are discussed. It is shown that the eicheon surface allows setting a boundary condition for the vacuum polarization and obtaining a solution describing the dark matter tail in the Milky Way Galaxy. That is, the dark matter in the Milky
Sergey L. Cherkas +1 more
doaj +1 more source
The mass of the Andromeda galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 This paper argues that the Milky Way galaxy is probably the largest member of the Local Group. The evidence comes from estimates of the total mass of the Andromeda galaxy (M31) derived from the three dimensional positions and radial velocities of its satellite galaxies, as well as the projected positions and radial velocities of its distant globular ...
Nick Evans, Mark I. Wilkinson
openaire +4 more sources
Investigating variations in the dust emissivity index in the Andromeda galaxy [PDF]
, 2021 Over the past decade, studies of dust in the Andromeda galaxy (M31) have shown radial variations in the dust emissivity index ($\beta$). Understanding the astrophysical reasons behind these radial variations may give clues about the chemical composition ...
G. Athikkat-Eknath +5 more
semanticscholar +1 more source
The Complex Structure of the Bulge of M31
The Astrophysical Journal Supplement Series, 2023 The bulge of M31 is of interest regarding the nature of galactic bulges and how their structure relates to bulge formation mechanisms and their subsequent evolution.
Denis Leahy +2 more
doaj +1 more source
The PAndAS View of the Andromeda Satellite System. IV. Global Properties
The Astrophysical Journal, 2023 We build a statistical framework to infer the global properties of the satellite system of the Andromeda galaxy (M31) from the properties of individual dwarf galaxies located in the Pan-Andromeda Archaelogical Survey (PAndAS) and the previously ...
Amandine Doliva-Dolinsky +10 more
doaj +1 more source
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 +5 more
wiley +1 more source