![]() These observations include aperture-free low-resolution spectrophotometry covering a wavelength range from approximately 330 nm to 1050 nm, with a spectral resolution of about 30 to 100 ( Carrasco et al. The European Space Agency’s Gaia mission ( Gaia Collaboration 2016) repeatedly scans the entire sky and observes point-like or nearly point-like objects at magnitudes from approximately G = 3 m to G = 20.7 m. Subscribe to A&A to support open access publication. This article is published in open access under the Subscribe to Open model. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We present example applications to hydrogen Balmer lines, He I lines, and a broad interstellar band in Gaia DR3 low-resolution spectra. The derived method is fast and robust enough to be applied to large numbers of Gaia spectra without the need for high-performance computing resources or human interference. A simple and efficient computational method for deriving the position in wavelength, statistical significance, and line strengths is presented for spectra represented by a linear combination of Hermite functions. In particular, we made use of simple computatios for the derivatives of linear combinations of Hermite functions and their roots. For this purpose, we combined established computational methods for orthogonal polynomials with the peculiar mathematical properties of Hermite functions and basic properties of the Gaia spectrophotometers. We derive an approach to studying spectral lines that is robust and efficient for spectra that are represented as a linear combination of Hermite functions. Instead, they are represented by a linear combination of Hermite functions.Īims. However, these spectra differ in their nature from typical spectroscopic data, as they do not consist of wavelength samples with associated flux values. With its third data release, European Space Agency’s Gaia mission has published the first set of low-resolution spectra for a large number of celestial objects. Institut d’Estudis Espacials de Catalunya (IEEC),Ĭontext. ![]() Jordi 1 ,2 ,3ĭepartament de Física Quàntica i Astrofísica (FQA), Universitat de Barcelona (UB),Į-mail: de Ciències del Cosmos (ICCUB), Universitat de Barcelona (UB), Astronomical objects: linking to databases.Including author names using non-Roman alphabets.Suggested resources for more tips on language editing in the sciences Punctuation and style concerns regarding equations, figures, tables, and footnotes
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |