Showing papers by "Edwin A. Valentijn published in 2003"
Proceedings Article•
01 Jun 2003
13 citations
Journal Article•
TL;DR: In this article, a new method for the determination of the extinction in our Galaxy is proposed, which uses surface brightnesses of external galaxies in the B and R bands, and derives the ratio of R band to B band extinction.
Abstract: A new method for the determination of the extinction in our Galaxy is proposed. The method uses surface brightnesses of external galaxies in the B and R bands. The observational data have been taken from the ESO-LV galaxy catalogue. As a first application of our model we derive the ratio of R band to B band extinction. We introduce two methods for computing the ratio which give: 0.62 ± 0.05 (the first method) and 0.64 ± 0.06 (the second method) which is in agreement with the recent literature value of 0.61. This agreement confirms the validity and efficiency of our model and is an independent verification for the standard value of the ”total to selective extinction”. The method of extinction determination introduced in this paper will be explored in subsequent publications.
Posted Content•
TL;DR: In this article, a new method for the determination of the extinction in our Galaxy is proposed, which uses surface brightnesses of external galaxies in the B and R bands, and derives the ratio of R band to B band extinction.
Abstract: A new method for the determination of the extinction in our Galaxy is proposed. The method uses surface brightnesses of external galaxies in the B and R bands. The observational data have been taken from the ESO-LV galaxy catalogue. As a first application of our model we derive the ratio of R band to B band extinction. We introduce two methods for computing the ratio which give: 0.62 $\pm$ 0.05 (the first method) and 0.64 $\pm$ 0.06 (the second method) which is in agreement with the recent literature value of 0.61. This agreement confirms the validity and efficiency of our model and is an independent verification for the standard value of the "total to selective extinction". The method of extinction determination introduced in this paper will be explored in subsequent publications.
Posted Content•
TL;DR: Choloniewski and Valentijn as discussed by the authors compared the relative extinction in the Galaxy with three extinction patterns: Schlegel, Finkbeiner and Davis (1998, SFD), Burstein and Heiles (1978, BH), and the cosecans law.
Abstract: The relative extinction in the Galaxy computed with our new method (Choloniewski and Valentijn 2003, CV) is compared with three patterns: Schlegel, Finkbeiner and Davis (1998, SFD), Burstein and Heiles (1978, BH) and the cosecans law. It is shown that extinction of SFD is more reliable then that of BH since it stronger correlates with our new extinction. The smallest correlation coeffcient have been obtained for the cosecans law. Linear regression analysis show that SFD overestimate the extinction by a factor of 1.4.
Our results clearly indicate that there is non-zero extinction at the Galactic South pole and that the extinction near the Galactic equator ($|b|<40^o$) is significantly larger in the Southern hemisphere than in the Northern.
Journal Article•
TL;DR: In this paper, a new method for the determination of the extinction in the Galaxy is proposed using surface brightnesses of external galaxies in the B and R-bands, which is in agreement with the recent literature value of 0.61.
Abstract: A new method for the determination of the extinction in the Galaxy is proposed. The method uses surface brightnesses of external galaxies in the B and R-bands. The observational data have been taken from the ESO-LV galaxy catalog. As a first application of our model we derive the ratio of R-band to B-band extinction. We introduce two methods for computing the ratio which give: 0.62 +/- 0.05 (the first method) and 0.64 +/- 0.06 (the second method) which is in agreement with the recent literature value of 0.61. This agreement confirms the validity and efficiency of our model and is an independent verification for the standard value of the "total to selective extinction". The method of extinction determination introduced in this paper will be explored in subsequent publication.