EUSO-TA is a ground-based telescope, installed at the Telescope Array (TA) site in Black Rock Mesa, Utah, USA. This is the first detector to successfully use a Fresnel lens based optical system and multi-anode photomultipliers (64 channels per tube, 2304 channels encompassing a 10.6° × 10.6° field of view) for detection of Ultra High Energy Cosmic
This section contains the publications database that collects IAC articles published in scientific journals. Please, click on the arrow to see full search filter and sort options: author, journal, year, etc..
It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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EUSO-TA - First results from a ground-based EUSO telescopeAbdellaoui, G. et al.112018
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Evidence for a Physically Associated Companion Galaxy to I ZW 18
Using the William Herschel Telescope ISIS spectrograph, deep long-slit spectra were obtained of the ionized gas across the blue compact dwarf galaxy I Zw 18 and in an irregular galaxy located 15" to the northwest. Heliocentric radial velocities of H alpha and H beta emission lines were measured over a 50" length spanning the main body of I Zw 18
Dufour, Reginald J. et al.Advertised on:
111996 -
Evidence for Intermediate-Age Stellar Populations in Early-Type Galaxies from K-Band Spectroscopy
The study of stellar populations in early-type galaxies in different environments is a powerful tool for constraining their star formation histories. This study has been traditionally restricted to the optical range, where dwarfs around the turn-off and stars at the base of the red giant branch dominate the integrated light at all ages. The near
Mármol-Queraltó, E. et al.Advertised on:
112009 -
Evidence for the concurrent growth of thick discs and central mass concentrations from S4G imaging
We have produced 3.6 μm + 4.5 μm vertically integrated radial luminosity profiles of 69 edge-on galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G). We decomposed the luminosity profiles into a disc and a central mass concentration (CMC). These fits, combined with thin/thick disc decompositions from our previous studies, allow
Comerón, S. et al.Advertised on:
112014 -
Evidence of AGB Pollution in Galactic Globular Clusters from the Mg–Al Anticorrelations Observed by the APOGEE Survey
We study the formation of multiple populations in globular clusters (GCs), under the hypothesis that stars in the second generation formed from the winds of intermediate-mass stars, ejected during the asymptotic giant branch (AGB) phase, possibly diluted with pristine gas, sharing the same chemical composition of first-generation stars. To this aim
Zamora, O. et al.Advertised on:
112016 -
Evidence of the Missing Baryons from the Kinematic Sunyaev-Zeldovich Effect in Planck Data
We estimate the amount of the missing baryons detected by the Planck measurements of the cosmic microwave background in the direction of central galaxies (CGs) identified in the Sloan galaxy survey. The peculiar motion of the gas inside and around the CGs unveils values of the Thomson optical depth τT in the range 0.2 - 2 ×1 0-4 , indicating that
Hernández-Monteagudo, C. et al.Advertised on:
112015