Results 41 to 50 of about 12,684 (325)
Kinematics of Spiral‐Arm Streaming in M51 [PDF]
The Astrophysical Journal, 2007 50 pages, including 20 figures; Accepted for publication in ApJ. PDF version with high resolution figures available at http://www.astro.umd.edu/~shetty/Research/
Shetty, Rahul +3 more
openaire +2 more sources
Kinematics of the Local Spiral Structure Revealed by Young Stars in Gaia DR3
The Astrophysical Journal Supplement Series, 2023 Using young open clusters and O–B2-type stars in Gaia Data Release 3, we investigate the kinematics of the local spiral structure. In general, the young sources in the outer spiral arms may present larger peculiar motions than those in the inner spiral ...
Dejian Liu +6 more
doaj +1 more source
Spiral arms in the protoplanetary disc HD100453 detected with ALMA: evidence for binary–disc interaction and a vertical temperature gradient [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Scattered light high-resolution imaging of the protoplanetary disc orbiting HD100453 shows two symmetric spiral arms, possibly launched by an external stellar companion.
G. Rosotti +9 more
semanticscholar +1 more source
Binary-induced spiral arms inside the disc cavity of AB Aurigae [PDF]
, 2020 In this work we demonstrate that the inner spiral structure observed in AB Aurigae can be created by a binary star orbiting inside the dust cavity. We find that a companion with a mass-ratio of 0.25, semimajor axis of 40 au, eccentricity of 0.5, and ...
P. Poblete +7 more
semanticscholar +1 more source
MOLECULAR DISTRIBUTION IN THE SPIRAL ARM OF M51 [PDF]
The Astrophysical Journal, 2016 ABSTRACT Molecular line images of 13CO, C18O, CN, CS, CH3OH, and HNCO are obtained toward the spiral arm of M51 at a resolution with the Combined Array for Research in Millimeter-wave Astronomy.
Watanabe, Yoshimasa +4 more
openaire +2 more sources
Magnetic spiral arms and galactic outflows [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2014 AbstractGalactic magnetic arms have been observed between the gaseous arms of some spiral galaxies; their origin remains unclear. We suggest that magnetic spiral arms can be naturally generated in the interarm regions because the galactic fountain flow or wind is likely to be weaker there than in the arms.
Chamandy L, Shukurov A, Subramanian K
openaire +3 more sources
Galaxies decomposition with spiral arms -- II: A multiwavelength case study of M 51 [PDF]
Spiral structure can contribute significantly to a galaxy's luminosity. However, only rarely are proper photometric models of spiral arms used in decompositions.
A. A. Marchuk +9 more
semanticscholar +1 more source
The shapes of spiral arms in the S4G survey and their connection with stellar bars [PDF]
Astronomy & Astrophysics, 2019 Context. Spiral galaxies are very common in the local Universe, but their formation, evolution, and interplay with bars remain poorly understood after more than a century of astronomical research on the topic. Aims. We use a sample of 391 nearby galaxies
Sim'on D'iaz-Garc'ia +3 more
semanticscholar +1 more source
Bulletin of the Seismological Society of America, 2015 Seismic arrays have many uses for signal enhancement, from surface-wave characterization of the near surface to teleseismic detection in the context of monitoring nuclear tests. Many variants of the geometrical configuration of stations have been used with the objective of maximizing potential resolution of the incoming wavefronts di- rection of ...
Kennett, Brian +2 more
openaire +3 more sources
The Imprint of Spiral Arms on the Galactic Rotation Curve [PDF]
Astrophysical Journal, 2019 We discuss a model for the Milky Way obtained by fitting the observed terminal velocities with the radial acceleration relation. The resulting stellar surface density profile departs from a smooth exponential disk, having bumps and wiggles that ...
S. McGaugh
semanticscholar +1 more source