|
| | | | |
| | | |
| Stat |
Members: 3657
Articles: 2'599'751
Articles rated: 2609
08 October 2024 |
|
| | | | |
|
Article overview
| |
|
|
Distances to six Cepheids in the LMC cluster NGC1866 from the near-IR surface-brightness method | | J. Storm
; W. Gieren
; P. Fouque
; T.G. Barnes III
; M. Gomez
; | | Date: |
6 Oct 2005 | | Subject: | astro-ph | | Affiliation: | Astrophysikalisches Institut Potsdam, Universidad de Concepcion, Observatoire Midi-Pyrenees, McDonald Observatory | | Abstract: | We derive individual distances to six Cepheids in the young populous star cluster NGC1866 in the Large Magellanic Cloud employing the near-IR surface brightness technique. With six stars available at the exact same distance we can directly measure the intrinsic uncertainty of the method. We find a standard deviation of 0.11 mag, two to three times larger than the error estimates and more in line with the estimates from Bayesian statistical analysis by Barnes et al. (2005). Using all six distance estimates we determine an unweighted mean cluster distance of 18.30+-0.05. The observations indicate that NGC1866 is close to be at the same distance as the main body of the LMC. If we use the stronger dependence of the p-factor on the period as suggested by Gieren et al. (2005) we find a distance of 18.50+-0.05 (internal error) and the PL relations for Galactic and MC Cepheids are in very good agreement. | | Source: | arXiv, astro-ph/0510168 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|
REGISTER