Results 41 to 50 of about 32,885 (244)
The iconographic transformation of the “tail of the dragon of the eclipse” into the “hunting cheetah” [PDF]
, 2018 Medieval Islamic iconography includes many depictions in which the tail of Sagittarius takes the form of the “dragon of the eclipse”. The current paper examines the gradual transformation of this imagery into that of a quadruped, eventually detached from
Fontana, Maria Vittoria
core
A Dynamically Distinct Stellar Population in the Leading Arm of the Sagittarius Stream
The Astrophysical Journal Letters, 2023 We present a chemical and dynamical analysis of the leading arm (LA) and trailing arm (TA) of the Sagittarius (Sgr) stream, as well as for the Sgr dwarf galaxy core (SC), using red giant branch, main-sequence, and RR Lyrae stars from large spectroscopic ...
Gwibong Kang +3 more
doaj +1 more source
Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning [PDF]
, 2021 Andrés del Pino +5 more
openalex +1 more source
POLARIZED EMISSION OF SAGITTARIUS A* [PDF]
The Astrophysical Journal, 2009 We explore the parameter space of the two temperature pseudo-Newtonian Keplerian accretion flow model for the millimeter and shorter wavelength emission from Sagittarius A*. A general relativistic ray-tracing code is used to treat the radiative transfer of polarized synchrotron emission from the flow.
Huang, Lei +6 more
openaire +2 more sources
Galactic Centre Pulsars with the SKAO
The Open Journal of AstrophysicsThe detection of a pulsar closely orbiting our Galaxy’s supermassive black hole - Sagittarius A* - is one of the ultimate prizes in pulsar astrophysics.
Federico Abbate +21 more
doaj +1 more source
Electron Acceleration around the Supermassive Black Hole at the Galactic Center
, 2004 The recent detection of variable infrared emission from Sagittarius A*, combined with its previously observed flare activity in X-rays, provides compelling evidence that at least a portion of this object's emission is produced by nonthermal electrons. We
Baganoff F. K. +4 more
core +2 more sources
The observed spiral structure of the Milky Way [PDF]
, 2014 The spiral structure of the Milky Way is not yet well determined. The keys to understanding this structure are to increase the number of reliable spiral tracers and to determine their distances as accurately as possible.
Han, J. L., Hou, L. G.
core +1 more source
Precession of timelike bound orbits in Kerr spacetime
European Physical Journal C: Particles and Fields, 2021 Astrometric observations of S-stars provide a unique opportunity to probe the nature of Sagittarius-A* (Sgr-A*). In view of this, it has become important to understand the nature and behavior of timelike bound trajectories of particles around a massive ...
Parth Bambhaniya +5 more
doaj +1 more source
The chemical evolution of Manganese in different stellar systems
, 2008 Aims. To model the chemical evolution of manganese relative to iron in three different stellar systems: the solar neighbourhood, the Galactic bulge and the Sagittarius dwarf spheroidal galaxy, and compare our results with the recent and homogeneous ...
Cescutti, G. +3 more
core +1 more source
Young Globular Clusters and Dwarf Spheroidals [PDF]
, 1999 Most of the globular clusters in the main body of the Galactic halo were formed almost simultaneously. However, globular cluster formation in dwarf spheroidal galaxies appears to have extended over a significant fraction of a Hubble time.
Ambartsumian V. A. +10 more
core +2 more sources