When we measure the electron density within an H II region using ratios of emission lines we find characteristic values in the range of 100-300 cm -3. But when...
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TalkElectron densities in HII regions across galaxy discs
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PublicationElmer Electro-Mechanics
ELMER is a multi-purpose Camera&Spectrograph in the optical range for the GTC. ELMERs electro-mechanical design was based in well known, straightforward and...
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PublicationElmer Mechanics: Manufacturing, Integration and Testing
ELMER is a visible imager-spectrograph currently scheduled to be in operation at the GTC on Day One. The design phase of the ELMER Structure and Mechanisms...
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PublicationEmbedded Star Formation in S4G Galaxy Dust Lanes
Star-forming regions that are visible at 3.6 μm and Hα but not in the u, g, r, i, z bands of the Sloan Digital Sky Survey are measured in five nearby spiral...
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PublicationEmission-line galaxy surveys with GTC: The H α Universe
Emission line galaxies are the most easily detected and studied objects in the high redshift Universe. They are being used to trace the evolution of critical...
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PublicationEmission-line maps with OSIRIS-TF: The case of M101
We investigate the suitability of GTC/OSIRIS Tunable Filters (TFs) for obtaining emission-line maps of extended objects. We developed a technique to reconstruct...
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PublicationEnhanced star formation rates in AGN hosts with respect to inactive galaxies from PEP-Herschel observations
We compare the average star formation (SF) activity in X-ray selected AGN hosts with a mass-matched control sample of inactive galaxies, including both star...
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PublicationErratum: A very dark stellar system lost in Virgo: kinematics and metallicity of SECCO 1 with MUSE
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PublicationErratum: VLA and ALMA observations of the lensed radio-quiet quasar SDSS J0924+0219: a molecular structure in a 3 µJy radio source