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      San Pedro Mártir mid-infrared photometric system

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          Abstract

          With the goal of defining the San Pedro Martir Mid-infrared Photometric System (SPM-MIR), observations of well-defined calibration stars were carried out on 9 photometric runs from 2000 to 2005. The mid-infrared (2 - 28 µm) camera CID-BIB of the Observatorio Astronómico Nacional was used. A set of 9 filters, the "silicate" series SiN, SiO, SiP, SiQ, SiR, SiS, the broad-band N (10.8 µm) filter, and the narrow-band QH2 (17.15 µm) and Q2 (18.7 µm), was used to derive the extinction coefficients and zero magnitude points. Atmospheric extinction corrections were carried out making use of Padé approximants and we found a linear dependence on the parameters with the low air mass extinction coefficient. The atmospheric transmission curves and extinction coefficients of SPM were compared with those obtained for the Mauna Kea site. Color terms were derived using a set of IRAS LSR sources observed with the CID-BIB.

          Translated abstract

          Con el objetivo de definir el Sistema Fotométrico para el Mediano-Infrarrojo de San Pedro Mártir, se realizaron observaciones de estrellas de calibración bien estudiadas con la cámara del mediano-infrarrojo CID-BIB (2 - 28 µm) del Observatorio Astronómico Nacional, durante 9 temporadas de observación en 2000 a 2005. Se utilizó un conjunto de 9 filtros, los de la serie de "silicatos" SiN, SiO, SiP, SiQ, SiR, SiS, el filtro de banda ancha N (10.8 µm), y los filtros angostos QH2 (17.15 µm) y Q2 (18.7 µm), para determinar los coeficientes de extinción y los puntos cero en magnitud. Las correcciones por extinción atmosférica se llevaron a cabo mediante el uso de aproximantes de Padé, y los coeficientes involucrados se obtuvieron mediante una relación lineal con el coeficiente de extinción a baja masa de aire. Se presentan y comparan las curvas de transmisión atmosférica de SPM y los coeficientes de extinción con los del sitio astronómico Mauna Kea. Utilizando un conjunto de fuentes IRAS LSR observadas con el CID-BIB se encuentran términos de color.

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          Most cited references18

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          Introduction to Astronomical Photometry

          M GOLAY (1974)
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            AJ

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              IRTF Photometry Manual

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmaa
                Revista mexicana de astronomía y astrofísica
                Rev. mex. astron. astrofis
                Instituto de Astronomía, UNAM
                0185-1101
                2006
                : 42
                : 2
                : 273-289
                Affiliations
                [1 ] Universidad Nacional Autónoma de México México
                Article
                S0185-11012006000200012
                cea17f80-f1c1-4958-b470-0c786c130d8b

                This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 International License.

                History
                Categories
                Astronomy & Astrophysics

                Astronomy & Astrophysics
                INSTRUMENTATION,SITE TESTING,STARS,TECHNIQUES
                Astronomy & Astrophysics
                INSTRUMENTATION, SITE TESTING, STARS, TECHNIQUES

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