On the extinction towards Baade's Window
| dc.creator | Ng, Y. K. | |
| dc.creator | Bertelli, G. | |
| dc.date | 1996-07-18 | |
| dc.date.accessioned | 2026-07-07T02:21:37Z | |
| dc.date.available | 2026-07-07T02:21:37Z | |
| dc.description | An analysis is made on the morphology of the sequences, formed by stars distributed along the line of sight in (V,V--I) colour-magnitude diagrams from Baade's Window (l=1.0,b=-3.9). The extinction is due to an absorbing layer with an effective thickness of about 100 pc. A linearly, with distance, increasing extinction up to a maximum value inside the absorbing layer is in first order a good approximation for the actual extinction present along the line of sight. We show that the morphology of the disc sequence gives a good indication of the nearby extinction along the line of sight. The morphology of the bulge/bar red horizontal branch is likely due to a combination of differential reddening and a significant metallicity spread among the horizontal branch stars. This is irrespective of the type of extinction law adopted. There is in Baade's Window globally no big difference between a Poissonian or a patchy type of extinction, except for substructures in the morphology of the sequences for the latter. | |
| dc.description | 9 pages TeX without postscript figures (16), uses modified version of aa.cmm. Full paper, including all the postscript figures (approx. 15 Mb), is available on request. Accepted for publication in A&A | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9607092 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9607092 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10571 | |
| dc.subject | Astrophysics | |
| dc.title | On the extinction towards Baade's Window | |
| dc.type | text |