Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/10774
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Sánchez, Sebastián F. | - |
dc.contributor.author | Aceituno, Jesús | - |
dc.contributor.author | Thiele, Ulrich | - |
dc.contributor.author | Pérez-Ramírez, Dolores | - |
dc.contributor.author | Alves, João | - |
dc.date.accessioned | 2009-02-18T11:29:50Z | - |
dc.date.available | 2009-02-18T11:29:50Z | - |
dc.date.issued | 2007-10-25 | - |
dc.identifier.citation | Publications of the Astronomical Society of the Pacific 119(860): 1186-1200 (2007) | en_US |
dc.identifier.issn | 0004-6280 | - |
dc.identifier.uri | http://hdl.handle.net/10261/10774 | - |
dc.description | 15 pages, 5 figures, 7 tables.-- ArXiv pre-print available at: http://arxiv.org/abs/0709.0813 | en_US |
dc.description.abstract | We present characterization of the main properties of the night sky at the Calar Alto observatory for the time period between 2004 and 2007. We use optical spectrophotometric data, photometric-calibrated images taken in moonless observing periods, together with the observing conditions regularly monitored at the observatory, such as atmospheric extinction and seeing. We derive, for the first time, the typical moonless night-sky optical spectrum for the observatory. The spectrum shows a strong contamination by different pollution lines, in particular from mercury lines, whose contribution to the sky brightness in the different bands is of the order of ~0.09, ~0.16, and ~0.10 mag in B, V, and R, respectively. Regarding the strength of the sodium pollution line in comparison with the airglow emission, the observatory does not fulfill the IAU recommendations for a dark site. The zenith-corrected values of the moonless night-sky surface brightness are 22.39, 22.86, 22.01, 21.36, and 19.25 mag arcsec-2 in U, B, V, R and I, which indicates that Calar Alto is a particularly dark site for optical observations up to the I band. The fraction of astronomical useful nights at the observatory is ~70%, with ~30% of photometric nights. The typical extinction at the observatory is κ(V) ~ 0.15 mag in the winter season, with little dispersion. In summer the extinction has a wider range of values, although it does not reach the extreme peaks observed at other sites. The analysis of the winter and summer extinction curves indicates that the Rayleigh scattering is almost constant throughout the year. The rise of the extinction in the summer season is due to an enhancement of the aerosol extinction, most probably associated with an increase of dust in the atmosphere. The median seeing for the last two years (2005–2006) was ~0.90", being smaller in the summer (~0.87") than in the winter (~0.96"). We conclude in general that after 26 years of operations, Calar Alto is still a good astronomical site. Its main properties are similar in many aspects to those of other major observatories where 10 m–like telescopes are under operation or construction, thus being a natural candidate for future large aperture optical telescopes. | en_US |
dc.description.sponsorship | SFS thanks the Spanish Plan Nacional de Astronomía program AYA2005-09413-C02-02, of the Spanish Ministry of Education and Science and the Plan Andaluz de Investigación of Junta de Andalucía as research group FQM322. | en_US |
dc.format.extent | 444185 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.publisher | Astronomical Society of the Pacific | - |
dc.publisher | University of Chicago Press | - |
dc.rights | openAccess | en_US |
dc.subject | Calar Alto observatory | en_US |
dc.subject | Astronomical Phenomena and Seeing | en_US |
dc.subject | Night-sky optical spectrum | en_US |
dc.subject | Pollution lines | en_US |
dc.subject | Extinction curves | en_US |
dc.subject | Rayleigh scattering | en_US |
dc.title | The Night Sky at the Calar Alto Observatory | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1086/522378 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1086/522378 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
Aparece en las colecciones: | (IAA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
0709.0813v1.pdf | 433,77 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
72
checked on 29-mar-2024
WEB OF SCIENCETM
Citations
67
checked on 25-feb-2024
Page view(s)
480
checked on 18-abr-2024
Download(s)
295
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.