Are Low Surface Brightness Discs Young?
| dc.creator | Padoan, Paolo | |
| dc.creator | Jimenez, Raul | |
| dc.creator | Antonuccio-Delogu, Vincenzo | |
| dc.date | 1996-09-12 | |
| dc.date.accessioned | 2026-07-07T02:21:54Z | |
| dc.date.available | 2026-07-07T02:21:54Z | |
| dc.description | We reconsider the problem of the age of the stellar discs of late-type Low Surface Brightness (LSB) galaxies by making use of a new IMF recently derived from numerical fluid dynamical simulations (Padoan, Nordlund and Jones, 1997). While a Miller-Scalo IMF cannot adequately describe the photometric properties of LSBs, when we apply the new Padoan et al. (1997) IMF to a simple exponential disc model with parameters appropriate to LSBs, we get excellent fits of the colors and color gradients. We then conclude that: a) The star formation history of LSB disc galaxies can be described by an initial burst of a few times $10^7$ yr followed by a quiescent period with only sporadic star formation; b) LSBs' discs are not young. The age of the LSB disc galaxies for which colors have been measured are all larger than about 10 Gyr$. | |
| dc.description | email raul@roe.ac.uk | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9609091 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9609091 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10679 | |
| dc.subject | Astrophysics | |
| dc.title | Are Low Surface Brightness Discs Young? | |
| dc.type | text |