1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of TurkuFI349 papers
- Centre National de la Recherche ScientifiqueFR112 papers
- Aalto UniversityFI109 papers
- University of PaduaIT102 papers
- Instituto de Astrofísica de AndalucíaES94 papers
- California Institute of TechnologyUS92 papers
- Instituto de Astrofísica de CanariasES84 papers
- Center for Astrophysics Harvard & SmithsonianUS78 papers
- Hiroshima UniversityJP75 papers
- National Institute for AstrophysicsIT74 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT72 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT71 papers
32 papers · 1 filter
Black hole lightning due to particle acceleration at subhorizon scales
MAGIC Collaboration, J. Aleksić, S. Ansoldi +151
Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio inte…
Spectroscopic study of solar twins and analogues
Juliet Datson, Chris Flynn, Laura Portinari
Context. Many large stellar surveys have been and are still being carried out, providing huge amounts of data, for which stellar physical parameters will be derived. Solar twins an…
Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010
The MAGIC Collaboration, J. Aleksić, S. Ansoldi +251
A flare from the TeV blazar Mrk 421, occurring in March 2010, was observed for 13 consecutive days from radio to very high energy (VHE, E > 100 GeV) gamma-rays with MAGIC, VERITAS,…
The Mass Profile and Shape of Bars in the Spitzer Survey of Stellar Structure in Galaxies (S4G): Search for an Age Indicator for Bars
Taehyun Kim, Kartik Sheth, Dimitri A. Gadotti +24
We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6 image decompositions for 144 face-on barred galaxies from the Spitzer Survey of…
Characterization of repetitions in Sturmian words: A new proof
Jarkko Peltomäki
We present a new, dynamical way to study powers (that is, repetitions) in Sturmian words based on results from Diophantine approximation theory. As a result, we provide an alternat…
Expanding the principle of local distinguishability
Claudio Carmeli, Teiko Heinosaari, Jussi Schultz +1
The principle of local distinguishability states that an arbitrary physical state of a bipartite system can be determined by the combined statistics of local measurements performed…
Red giants in the outer halo of the elliptical galaxy NGC 5128 / Centaurus A
Sarah A. Bird, Chris Flynn, William E. Harris +1
We used VIMOS on VLT to perform and band imaging of the outermost halo of NGC 5128 / Centaurus A (), 65 kpc from the galaxy's center and along the maj…
Multiwavelength observations of Mrk 501 in 2008
MAGIC Collaboration, J. Aleksić, S. Ansoldi +256
Mrk 501 is one of the brightest blazars at TeV energies and has been extensively studied since its first VHE detection in 1996. Our goal is to characterize in detail the source gam…
Fluctuation relations for driven coupled classical two-level systems
Massimo Borrelli, Jonne V. Koski, Sabrina Maniscalco +1
We theoretically investigate fluctuation relations in a classical incomplete measurement process where just partial information is available. The scenario we consider consists of t…
Stellar Kinematics and Structural Properties of Virgo Cluster Dwarf Early-Type Galaxies from the SMAKCED Project III. Rotation versus Pressure Support
E. Toloba, P. Guhathakurta, A. Boselli +17
We analyze the stellar kinematics of 39 dwarf early-type galaxies (dEs) in the Virgo cluster. Based on the specific stellar angular momentum lambda_e and the ellipticity, we find 1…
Radio-Gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view
S. Cutini, S. Ciprini, M. Orienti +23
The Large Area Telescope on board the Fermi Gamma-ray Space Telescope detected a strong gamma-ray flare on 2011 May 15 from a source identified as 4C 49.22, a flat spectrum radio q…
AGB populations in post-starburst galaxies
Jorge Melnick, Roberto De Propris
In a previous paper we compared the SEDs of a sample of 808 K+A galaxies from the FUV to the MIR to the predictions of the spectrum synthesis models explicitly using AGB components…
First broadband characterization and redshift determination of the VHE blazar MAGIC J2001+439
MAGIC Collaboration, J. Aleksić, S. Ansoldi +167
We aim to characterize the broadband emission from 2FGL J2001.1+4352, which has been associated with the unknown-redshift blazar MG4 J200112+4352. Based on its gamma-ray spectral p…
The black hole - host galaxy relation for very low-mass quasars
Jimit Sanghvi, Jari Kotilainen, Renato Falomo +3
Recently, the relation between the masses of the black hole () and the host galaxy () in quasars has been probed down to the parameter space of $M_{BH}\sim10^8 M_…
The major upgrade of the MAGIC telescopes, Part I: The hardware improvements and the commissioning of the system
MAGIC Collaboration, J. Aleksic, S. Ansoldi +162
The MAGIC telescopes are two Imaging Atmospheric Cherenkov Telescopes (IACTs) located on the Canary island of La Palma. The telescopes are designed to measure Cherenkov light from…
The major upgrade of the MAGIC telescopes, Part II: A performance study using observations of the Crab Nebula
MAGIC Collaboration, J. Aleksic, S. Ansoldi +163
MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes located in the Canary island of La Palma, Spain. During summer 2011 and 2012 it underwent a series of upgrades, in…
Galaxy And Mass Assembly (GAMA): Galaxy close-pairs, mergers, and the future fate of stellar mass
A. S. G. Robotham, S. P. Driver, L. J. M. Davies +28
We use a highly complete subset of the GAMA-II redshift sample to fully describe the stellar mass dependence of close-pairs and mergers between 10^8 Msun and 10^12 Msun. Using the…
Dust properties inside molecular clouds from coreshine modeling and observations
Charlène Lefèvre, Laurent Pagani, Mika Juvela +11
Context. Using observations to deduce dust properties, grain size distribution, and physical conditions in molecular clouds is a highly degenerate problem. Aims. The coreshine phen…
MAGIC search for VHE -ray emission from AE Aquarii in a multiwavelength context
J. Aleksić, S. Ansoldi, L. A. Antonelli +152
It has been claimed that the nova-like cataclysmic variable (CV) AE Aquarii (AE Aqr) is a very-high-energy (VHE, 100 GeV) source both on observational and theoretical grounds.…
A search for flares and mass ejections on young late-type stars in the open cluster Blanco-1
M. Leitzinger, P. Odert, R. Greimel +5
We present a search for stellar activity (flares and mass ejections) in a sample of 28 stars in the young open cluster Blanco-1. We use optical spectra obtained with ESO's VIMOS mu…
Three-dimensional atom localization by laser fields in a four-level tripod system
Vladimir S. Ivanov, Yuri V. Rozhdestvensky, Kalle-Antti Suominen
We present a scheme of the high-precise three-dimensional (3D) localization by the measurement of the atomic-level population. The scheme is applied to a four-level tripod-type ato…
Abundance analysis, spectral variability, and search for the presence of a magnetic field in the typical PGa star HD19400
S. Hubrig, F. Castelli, J. F. Gonzalez +6
The aim of this study is to carry out an abundance determination, to search for spectral variability and for the presence of a weak magnetic field in the typical PGa star HD19400.…
Milky Way mass galaxies with X-shaped bulges are not rare in the local Universe
E. Laurikainen, H. Salo, E. Athanassoula +2
Boxy/Peanut/X-shaped (B/P/X) bulges are studied using the 3.6 mum images from the Spitzer Survey of Stellar Structure in Galaxies, and the K_s-band images from the Near-IR S0 galax…
Grammars with two-sided contexts
Mikhail Barash, Alexander Okhotin
In a recent paper (M. Barash, A. Okhotin, "Defining contexts in context-free grammars", LATA 2012), the authors introduced an extension of the context-free grammars equipped with a…