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Spectra of faint sources in crowded fields with FRODOSpec on the Liverpool Robotic Telescope

Abstract: We check the performance of the FRODOSpec integral-field spectrograph for observations of faint sources in crowded fields. Although the standard processing pipeline L2 yields too noisy fibre spectra, we present a new processing software (L2LENS) that gives rise to accurate spectra for the two images of the gravitationally lensed quasar Q0957+561. Among other things, this L2LENS reduction tool accounts for the presence of cosmic-ray events, scattered-light backgrounds, blended sources, and chromatic source displacements due to differential atmospheric refraction. Our non-standard reduction of Q0957+561 data shows the ability of FRODOSpec to provide useful information on a wide variety of targets, and thus, the big potential of integral-field spectrographs on current and future robotic telescopes.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Astron. Nachr. /AN Vol. 335, No. 4, Pp. 428 – 439 (2014)

Editorial: Wiley-VCH Verlag

 Fecha de publicación: 01/05/2014

Nº de páginas: 12

Tipo de publicación: Artículo de Revista

 DOI: 10.1002/asna.201312049

ISSN: 0004-6337,1521-3994

Proyecto español: AYA2010-21741-C03-03

Url de la publicación: https://doi.org/10.1002/asna.201312049