Results 21 to 30 of about 11,151 (256)
Critical summer foraging tradeoffs in a subarctic ungulate
Ecology and Evolution, Volume 11, Issue 24, Page 17835-17872, December 2021., 2021 Summer diets are crucial for subarctic herbivores and are affected by weather, insect harassment and a variety of environmental changes linked to climate. We used GPS video‐camera collars to observe behavioral patterns and summer diets of migratory caribou (Rangifer tarandus granti) across Alaska, USA and Yukon, Canada.
Libby Ehlers +6 more
wiley +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 ...
Evans, N. W., Wilkinson, M. I.
openaire +2 more sources
A Quarter Century of Wind Spacecraft Discoveries
Reviews of Geophysics, Volume 59, Issue 2, June 2021., 2021 Abstract The Wind spacecraft, launched on November 1, 1994, is a critical element in NASA’s Heliophysics System Observatory (HSO)—a fleet of spacecraft created to understand the dynamics of the Sun‐Earth system. The combination of its longevity (>25 years in service), its diverse complement of instrumentation, and high resolution and accurate ...
Lynn B. Wilson III +13 more
wiley +1 more source
Millisecond pulsars and the gamma-ray excess in Andromeda [PDF]
, 2019 The Fermi Gamma-Ray Space Telescope has provided evidence for diffuse gamma-ray emission in the central parts of the Milky Way and the Andromeda galaxy.
Antonini, Fabio +2 more
core +2 more sources
European Journal of Philosophy, Volume 29, Issue 1, Page 55-73, March 2021., 2021 Abstract Certain of our traits are thought more central to who we are: they comprise our individual identity. What makes these traits privileged in this way? What accounts for their identity centrality? Although considerations of identity play a key role in many different areas of moral philosophy, I argue that we currently have no satisfactory account
Andreas L. Mogensen
wiley +1 more source
Galaxies, 2023 Dark matter is a popular candidate to a new source of primary-charged particles, especially positrons in cosmic rays, which are proposed to account for observable anomalies.
Konstantin Belotsky, Maxim Solovyov
doaj +1 more source
A Nitrogen-rich Supernova Remnant in M31: Interaction with the Circumstellar Medium at Late Times
The Astrophysical Journal, 2023 We present the discovery of a supernova remnant in M31 which is unlike any other remnant known in that galaxy. An optical ground-based spectrum of WB92-26 taken at the MMT and sampling most of this marginally resolved object reveals strong lines of [O ii
Nelson Caldwell, John C. Raymond
doaj +1 more source
ANDROMEDA XXIX: A NEW DWARF SPHEROIDAL GALAXY 200 kpc FROM ANDROMEDA [PDF]
The Astrophysical Journal, 2011 We report the discovery of a new dwarf galaxy, Andromeda XXIX, using data from the recently-released Sloan Digital Sky Survey DR8, and confirmed by Gemini North telescope Multi-Object Spectrograph imaging data. And XXIX appears to be a dwarf spheroidal galaxy, separated on the sky by a little more than 15 degrees from M31, with a distance inferred from
Bell, Eric F. +2 more
openaire +3 more sources
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
ANDROMEDA XXVIII: A DWARF GALAXY MORE THAN 350 kpc FROM ANDROMEDA [PDF]
The Astrophysical Journal, 2011 We report the discovery of a new dwarf galaxy, Andromeda XXVIII, using data from the recently-released SDSS DR8. The galaxy is a likely satellite of Andromeda, and, at a separation of $365^{+17}_{-1}$ kpc, would be one of the most distant of Andromeda's satellites.
Slater, Colin T. +2 more
openaire +3 more sources