7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of Astrophysics and Space SciencesPT1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Centro de Astrofísica da Universidade do PortoPT1k papers
- University of GenevaCH636 papers
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- Universidad de La LagunaES520 papers
- European Southern ObservatoryCL446 papers
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- University of LisbonPT430 papers
- Institut d'Astrophysique de ParisFR425 papers
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182 papers · 1 filter
On the properties of the interstellar medium in extremely metal-poor blue compact dwarf galaxies. A VIMOS-IFU study of the cometary galaxy and Ly absorber Tol 65
P. Lagos, R. Demarco, P. Papaderos +5
In this study we present high-resolution VIsible Multi-Object Spectrograph integral field unit spectroscopy (VIMOS-IFU) of the extremely metal-poor HII/blue compact dwarf (BCD) gal…
On Small Satellites for Oceanography: A Survey
André G. C. Guerra, Frederico Francisco, Jaime Villate +3
The recent explosive growth of small satellite operations driven primarily from an academic or pedagogical need, has demonstrated the viability of commercial-off-the-shelf technolo…
From Entanglement Witness to Generalized Catalan Numbers
Eliahu Cohen, Tobias Hansen, Nissan Itzhaki
The problem of entanglement detection for arbitrary spin systems is analyzed. We demonstrate how a single measurement of the squared total spin can probabilistically discern separa…
Vacuum decay in an interacting multiverse
S. Robles-Pérez, A. Alonso-Serrano, C. Bastos +1
We examine a new multiverse scenario in which the component universes interact. We focus our attention to the process of "true" vacuum nucleation in the false vacuum within one sin…
Red galaxies with pseudo-bulges in the SDSS: closer to disk galaxies or to classical bulges?
B. Ribeiro, C. Lobo, S. Antón +2
Pseudo-bulges are expected to markedly differ from classical, quasi-monolithically forming bulges in their star formation history (SFH) and chemical abundance patterns. To test thi…
A young star-forming galaxy at z = 3.5 with an extended Ly\, halo seen with MUSE
Vera Patrício, Johan Richard, Anne Verhamme +12
Spatially resolved studies of high redshift galaxies, an essential insight into galaxy formation processes, have been mostly limited to stacking or unusually bright objects. We pre…
Complete kappa-reducibility of pseudovarieties of the form DRH
Jorge Almeida, Célia Borlido
We denote by kappa the implicit signature that contains the multiplication and the (omega-1)-power. It is proved that for any completely kappa-reducible pseudovariety of groups H,…
The kappa-word problem over DRH
Célia Borlido
Let H be a pseudovariety of groups in which the kappa-word problem is decidable. Here, kappa denotes the canonical implicit signature, which consists of the multiplication and the…
Some reducibility properties for pseudovarieties of the form DRH
Célia Borlido
Let H be a pseudovariety of groups and DRH be the pseudovariety containing all finite semigroups whose regular R-classes belong to H. We study the relationship between reducibility…
Campaign 9 of the Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey
Calen B. Henderson, Radosław Poleski, Matthew Penny +118
's Campaign 9 (C9) will conduct a 3.7 deg survey toward the Galactic bulge from 7/April through 1/July of 2016 that will leverage the spatial separation between…
Exploring the spectroscopic diversity of type Ia supernovae with DRACULA: a machine learning approach
Michele Sasdelli, E. E. O. Ishida, R. Vilalta +8
The existence of multiple subclasses of type Ia supernovae (SNeIa) has been the subject of great debate in the last decade. One major challenge inevitably met when trying to infer…
The XMM Cluster Survey: The Halo Occupation Number of BOSS galaxies in X-ray clusters
Nicola Mehrtens, A. Kathy Romer, Robert C. Nichol +26
We present a direct measurement of the mean halo occupation distribution (HOD) of galaxies taken from the eleventh data release (DR11) of the Sloan Digital Sky Survey-III Baryon Os…
Guiding light via geometric phases
Sergei Slussarenko, Alessandro Alberucci, Chandroth P. Jisha +4
Known methods for transverse confinement and guidance of light can be grouped into a few basic mechanisms, the most common being metallic reflection, total internal reflection and…
"Piaf" vs "Adele": classifying encyclopedic queries using automatically labeled training data
Pedro Saleiro, Luís Sarmento
Encyclopedic queries express the intent of obtaining information typically available in encyclopedias, such as biographical, geographical or historical facts. In this paper, we tra…
POPmine: Tracking Political Opinion on the Web
Pedro Saleiro, Sílvio Amir, Mário J. Silva +1
The automatic content analysis of mass media in the social sciences has become necessary and possible with the raise of social media and computational power. One particularly promi…
The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion
Sara Gettel, David Charbonneau, Courtney D. Dressing +47
Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar tem…
Is there switching without suspended horseshoes?
Alexandre Rodrigues
In general, infinite switching behaviour near networks is associated with the existence of suspended horseshoes. Trajectories that realize switching lie within these transitive set…
Polarised Black Holes in AdS
Miguel S. Costa, Lauren Greenspan, Miguel Oliveira +2
We consider solutions in Einstein-Maxwell theory with a negative cosmological constant that asymptote to global with conformal boundary . At th…
The SOPHIE search for northern extrasolar planets VIII. Follow-up of ELODIE candidates: long-period brown-dwarf companions
F. Bouchy, D. Ségransan, R. F. Díaz +29
Long-period brown dwarf companions detected in radial velocity surveys are important targets for direct imaging and astrometry to calibrate the mass-luminosity relation of substell…
Radial velocity information content of M dwarf spectra in the near-infrared
P. Figueira, V. Zh. Adibekyan, M. Oshagh +7
Aims: We evaluate the radial velocity (RV) information content and achievable precision on M0-M9 spectra covering the ZYJHK bands. We do so while considering both a perfect atmosph…
Sub-percent constraints on cosmological temperature evolution
A. Avgoustidis, R. T. Génova-Santos, G. Luzzi +1
The redshift dependence of the cosmic microwave background temperature is one of the key cosmological observables. In the standard cosmological model one has , where…
The HARPS search for southern extra-solar planets. XXXIX. HD175607 b, the most metal-poor G dwarf with an orbiting sub-Neptune
A. Mortier, J. P. Faria, N. C. Santos +16
Context. The presence of a small-mass planet (M0.1\,M) seems, to date, not to depend on metallicity, however, theoretical simulations have shown that stars with subsol…
A rocky planet transiting a nearby low-mass star
Zachory K. Berta-Thompson, Jonathan Irwin, David Charbonneau +18
M-dwarf stars -- hydrogen-burning stars that are smaller than 60 per cent of the size of the Sun -- are the most common class of star in our Galaxy and outnumber Sun-like stars by…
No direct coupling between bending of galaxy disc stellar age and light profiles
T. Ruiz-Lara, I. Pérez, E. Florido +19
We study the stellar properties of 44 face-on spiral galaxies from the Calar Alto Legacy Integral Field Area survey via full spectrum fitting techniques. We compare the age profile…