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| Content Provider | Springer Nature Link |
|---|---|
| Author | Rozas, Maite Zurita, Almudena Beckmann/snm>, John E. |
| Copyright Year | 2001 |
| Abstract | We combine Hα and broad-band optical imaging and Hα velocity mapping over the face of the barred galaxy NGC 3359, obtained within the BARS programme on the Canary Island telescopes (Lourenso and Beckman, these proceedings).From the Hα image we have determined the positions, fluxes and diameters of a total of 547 HII regions, and computed their luminosity function whose slope is within the range of those of morphologically similar galaxies found in the literature. We have gone on to quantify other statistical properties, such as the diameter distribution and the flux densities of the regions. Using Fabry-Perot mapping in Hα with the TAURUS II instrument, we have produced maps of velocity and velocity dispersion, and computed the rotation curve out to ∼ 3 scale lengths from the centre of the galaxy. From the map of the residual velocities we detected streaming motions in the gas across the spiral arms and the presence of non-circular motions of order 30–40 km s-1 around the bar: the gas response to the gravitational potential. |
| Starting Page | 1179 |
| Ending Page | 1188 |
| Page Count | 10 |
| File Format | |
| ISSN | 0004640X |
| Journal | Astrophysics and Space Science |
| Volume Number | 276 |
| Issue Number | 2-4 |
| e-ISSN | 1572946X |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2001-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Astronomy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
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