Results 11 to 20 of about 2,372 (181)
The Astrophysical Journal, 2016 ABSTRACT Great investments of observing time have been dedicated to the study of nearby spiral galaxies with diverse goals ranging from understanding the star formation process to characterizing their dark matter distributions. Accurate distances are fundamental to interpreting observations of these galaxies, yet many of the best studied
Kristen. B. W. McQuinn +4 more
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Distribution and motions of CO in M51 [PDF]
Symposium - International Astronomical Union, 1985 We present results (partly preliminary) of an extensive map (73 positions) of CO (J=1–0) emission in M51 (Fig. 1). The spectra were obtained with the Onsala 20-m antenna (beam size 33″), equipped with a cooled mixer and a 512×1 MHz multichannel receiver. The data are not yet fully analyzed but our preliminary results are as follows:1.
G. Rydbeck, Å. Hjalmarson, O. Rydbeck
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CHARACTERIZING MAGNETIZED TURBULENCE IN M51 [PDF]
The Astrophysical Journal, 2013 We use previously published high-resolution synchrotron polarization data to perform an angular dispersion analysis with the aim of charactering magnetized turbulence in M51. We first analyze three distinct regions (the center of the galaxy, and the northwest and southwest spiral arms) and can clearly discern the turbulent correlation length scale from
Houde, Martin +5 more
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THE LOCAL RADIO-IR RELATION IN M51 [PDF]
The Astronomical Journal, 2011 50 pages, 13 figures, 5 tables, accepted for publication in ...
Dumas, G. +5 more
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Numerical Simulations of M51 [PDF]
Symposium - International Astronomical Union, 1999 No conference on the interaction of galaxies would be complete without a contribution on M51 (NGC5194) and its companion NGC5195. Much observational and theoretical work has been carried out to try to understand this interacting pair, and to elucidate the morphological features and weak AGN which are thought to be the result of the interaction.
M. Antonioletti, A. H. Nelson
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Molecular Superclouds in M51 [PDF]
International Astronomical Union Colloquium, 1994 Recently, it has been shown that some of nearby spiral galaxies have very massive (107-8Mʘ) and large (several 100 pc - ~ 1 kpc) molecular gas clouds (M51: Rand & Kulkarni 1990; NGC1068: Planesas et al. 1991). Since these clouds are significantly more massive and larger than those of so-called Giant Molecular Clouds (GMCs) found in our Galaxy, they
T. Tosaki, R. Kawabe, Y. Taniguchi
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Symposium - International Astronomical Union, 1983 We present observations, which are part of an ongoing investigation, of the CO (J=1–0) emission in the spiral galaxy M51. The spectra were obtained in a beamswitched on-on mode with the Onsala 20 m antenna (beam size ~33″), equipped with a cooled mixer and a 512 ×1 MHz multichannel receiver, and are shown in Figure 1.
G. Rydbeck +4 more
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Gravitational Stability in the Disk of M51 [PDF]
, 2008 4 pages, 3 Figures: Galaxies in the Local Volume, Sydney, Conference Proceedings ...
Hitschfeld, M. +4 more
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International Astronomical Union Colloquium, 1995 AbstractOne of the major problems with 3D spectroscopy is the adequate and meaningful display and analysis of large image cubes. We use linear mixture modeling to analyze multispectral CCD images of M51 in the visible and near-IR. We find that M51 can be modeled within the noise limits of the data as a linear combination of six components taken three ...
Paul E. Johnson +4 more
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The Astronomical Journal, 1992 High-sensitivity VLA observations of M51 at 6 cm wavelength with sub-arcsecond resolution have resolved the southern extra-nuclear cloud identified by Ford et al. [ApJ, 293, 132 (1985)]. These observations reveal a short (3-4"), sinuous jetlike feature connecting the weak nuclear radio source to a bright arcuate ridge of radio emission that dominates ...
P. C. Crane, J. M. van der Hulst
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