Results 171 to 180 of about 159,199 (212)

The Andromeda Galaxy

Astrophysics and Space Science Library, 1992
1. Early History.- 2. Discovery of its Galaxian Nature.- 3. Modern History.- 4. Optical Structure.- 5. The Neutral Hydrogen Content.- 6. Radio Continuum Radiation.- 7. Rotation.- 8. Dynamics and Mass.- 9. Globular Clusters.- 10. OB Associations.- 11. Open Clusters.- 12. Dust.- 13. Variable Stars and Novae.- 14.
Paul Hodge
exaly   +2 more sources

Mass Modelling the Andromeda Dwarf Galaxies: Andromeda VI and Andromeda XXIII

Monthly Notices of the Royal Astronomical Society
ABSTRACT Accurately mapping the mass profiles of low mass dwarf spheroidal (dSph) galaxies allows us to test predictions made by dark matter (DM) models. To date, such analyses have primarily been performed on Milky Way (MW) satellites.
Justin I. Read, Nicolas Martin, Alessandro Savino   +2 more
exaly   +5 more sources

The Faint Globular Cluster in the Dwarf Galaxy Andromeda I

Publications of the Astronomical Society of Australia, 2017
Observations of globular clusters in dwarf galaxies can be used to study a variety of topics, including the structure of dark matter halos and the history of vigorous star formation in low-mass galaxies.
Jay Strader, Anil Seth, Nelson Caldwell
exaly   +2 more sources

The Andromeda Galaxy

Scientific American, 1981
1. Early History.- 2. Discovery of its Galaxian Nature.- 3. Modern History.- 4. Optical Structure.- 5. The Neutral Hydrogen Content.- 6. Radio Continuum Radiation.- 7. Rotation.- 8. Dynamics and Mass.- 9. Globular Clusters.- 10. OB Associations.- 11. Open Clusters.- 12. Dust.- 13. Variable Stars and Novae.- 14.
openaire   +1 more source

Molecular Gas in the Andromeda Galaxy [PDF]

Astronomy and Astrophysics, 2006
We present a new 12CO(J=1-0)-line survey of the Andromeda galaxy, M31, covering the bright disk with the highest resolution to date (85 pc along the major axis), observed On-the-Fly (in italics) with the IRAM 30-m telescope. We discuss the distribution of the CO emission and compare it with the distributions of HI and emission from cold dust traced at ...
M Guélin, E M Berkhuijsen, R Wielebinski   +2 more
exaly   +3 more sources

Neutral Hydrogen Survey of Andromeda Galaxy

Science, 1966
A neutral hydrogen survey of the Andromeda galaxy (M31) has been conducted with the 260-foot (80m) Ohio State University radio telescope. The neutral hydrogen is concentrated in the spiral arm regions, with but relatively small amounts near the center of the galaxy.
W D, Brundage, J D, Kraus
openaire   +2 more sources

Radio Map of the Andromeda Galaxy

Science, 1964
The University of Illinois radio telescope has resolved the 610.5 Mcy/sec disk component of radio emission from the large galaxy M 31 into several discrete concentrations. In two cases, these correspond to the crossing of the optical major axis by spiral arms. A spur of emission extends southeast from the galaxy near the minor axis.
openaire   +2 more sources

The Andromeda Galaxy and the Rise of Modern Astronomy

Astronomers' Universe, 2012
The Andromeda Galaxy - Messier's M31 - has an almost romantic appeal. It is the most distant object and the only extragalactic object that is visible to the unaided human eye.
Schultz, David
exaly   +2 more sources

Methanol Masers in the Andromeda Galaxy

Proceedings of the International Astronomical Union, 2017
AbstractIs M31 going to collide with the Milky Way, or spiral around it? Determining the gravitational potential in the Local Group has been a challenge since it requires 3D space velocities and orbits of the members, and most objects have only had line-of-sight velocities measured. Compared to the less massive group members, the transverse velocity of
Ylva M. Pihlström, Loránt O. Sjouwerman   +1 more
openaire   +1 more source