Results 41 to 50 of about 51,405 (265)

Rotation Curves of High-Luminosity Spiral Galaxies and the Rotation Curve of our Galaxy [PDF]

Symposium - International Astronomical Union, 1979
Rotation curves of high luminosity spiral galaxies are flat, to distances as great as r=49 kpc. This implies a significant mass at large r. Rotational velocities increase about 20 km/s across a spiral arm, as predicted by the density wave theory. By analogy, it is suggested that our Galaxy has a flat rotation curve out to r∼60 kpc, with V ∼ constant at
openaire   +1 more source

Hickson 62.I. Kinematics of NGC4778 [PDF]

, 2006
Detailed studies of the photometric and kinematical properties of compact groups of galaxies are crucial to understand the physics of galaxy interactions and to shed light on some aspects of galaxy formation and evolution.
Balcells, Barnes, Bender, Bender, Bender, Bettoni, Binney, Binney, Birzan, Bode, Bonfanti, Bournaud, Caon, Cattaneo, Combes, Coziol, E. Iodice, Eke, Freeman, Freeman, Fukazawa, Fukugita, G. Longo, Gerhard, Governato, Grogin, Hickson, Hickson, Iodice, Jog, Koulouridis, Krajnovic, Kropolin, M. Paolillo, M. Spavone, Mehlert, Mendes de Oliveira, Nishiura, Pildis, Puche, Rampazzo, Rood, Rubin, S. Sodani, Tovmassian, Tully, Valluri, Vennik, Wozniak, Zabludoff, Zepf   +50 more
core   +3 more sources

Physical properties of dark matter in galaxy U11454

Physical Sciences and Technology, 2020
In this paper physical characteristics of dark matter distribution in the spiral galaxy U11454 is exploredusing only well-known cored density profiles in the literature such as the pseudo-isothermal, Burkert,Einasto, exponential sphere, Beta and ...
K. Boshkayev
doaj   +3 more sources

A Severe Challenge to the Modified Newtonian Dynamics Phenomenology in Our Galaxy

The Astrophysical Journal, 2023
Modified Newtonian dynamics (MOND) is one of the most popular alternative theories of dark matter to explain the missing mass problem in galaxies. Although it remains controversial regarding MOND as a fundamental theory, MOND phenomenology has been shown
Man Ho Chan, Ka Chung Law
doaj   +1 more source

Milky Way Mass Models and MOND [PDF]

, 2008
Using the Tuorla-Heidelberg model for the mass distribution of the Milky Way, I determine the rotation curve predicted by MOND. The result is in good agreement with the observed terminal velocities interior to the solar radius and with estimates of the ...
Angus G. W., Begeman K. G., Binney J., Binney J., Brada R., Broeils A. H., de Blok W. J. G., Famaey B., Famaey B., Feast M., Gerhard O., Hayashi E., Iorio L., Kerr F. J., Pointecouteau E., Sanders R. H., Stacy S. McGaugh   +16 more
core   +3 more sources

THE ASYMMETRIC DRIFT AND THE ROTATION CURVE OF THE GALAXY

Odessa Astronomical Publications, 2014
Asymmetric drift in the solar neighbourhood is studied by the means of the RAVE data. The asymmetric drift correction is applied to the SDSS data to measure the rotation curve of the Milky Way in the extended solar neighbourhood.
O. Golubov
doaj   +1 more source

Galaxy Rotation Curves without Nonbaryonic Dark Matter [PDF]

The Astrophysical Journal, 2006
43 pages, 7 figures, 4 tables, 101 galaxies. Submitted to ApJ, June 20, 2005. Accepted for publication in ApJ, September 21, 2005. To be published in ApJ 636 (January 10, 2006)
Brownstein, J. R., Moffat, J. W.
openaire   +2 more sources

Mass models from high-resolution HI data of the dwarf galaxy NGC 1560 [PDF]

, 2010
We present HI observations performed at the GMRT of the nearby dwarf galaxy NGC 1560. This Sd galaxy is well-known for a distinct "wiggle" in its rotation curve. Our new observations have twice the resolution of the previously published HI data.
Angus, Angus, B. Famaey, Barbieri, Begeman, Begeman, Bell, Bienaymé, Blumenthal, Bosma, Broeils, Bryan, Bullock, Burkert, Buta, Casertano, Corbelli, de Blok, de Jong, de Vaucouleurs, Donato, Einasto, Famaey, Famaey, Famaey, G. Gentile, Gentile, Gentile, Gentile, Gentile, Gentile, Gentile, Gnedin, Governato, Greisen, Guo, K. Van Acoleyen, Karachentsev, Kregel, Krismer, Kuzio de Naray, Lee, M. Baes, Marchesini, Mashchenko, McGaugh, McGaugh, McGaugh, McGaugh, McGaugh, McMillan, Milgrom, Milgrom, Navarro, Navarro, Navarro, Neto, Persic, Salucci, Salucci, Sancisi, Sancisi, Sandage, Sanders, Sellwood, Sellwood, Shankar, Skillman, Tamburro, Tiret, Verheijen, Visser, Wechsler, Weinberg, Zhao   +74 more
core   +1 more source

HI rotation curves of spiral galaxies

, 2006
Observations of the spiral galaxy NGC 3198 in the 21-cm line are presented. The H I distribution extends to about two Holmberg radii and the radial velocity field is symmetric and regular over the entire area. A new method for the derivation of rotation curves is described.
Kornelis Begeman
openalex   +2 more sources

Revisiting perfect fluid dark matter: Observational constraints from our galaxy

Physics Letters B, 2016
We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber–Visser approach of combined observations of rotation curves
Alexander A. Potapov, Guzel M. Garipova, Kamal K. Nandi   +2 more
doaj   +1 more source