Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.8k papers
- Heidelberg UniversityDE2.1k papers
- University of OxfordGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- European Organization for Nuclear ResearchCH2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- University of EdinburghGB1.9k papers
- The University of TokyoJP1.9k papers
- Ludwig-Maximilians-Universität MünchenDE1.9k papers
- University of ManchesterGB1.9k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.8k papers
557 papers · 1 filter
The Approximation Ratio of the Greedy Algorithm for the Metric Traveling Salesman Problem
Judith Brecklinghaus, Stefan Hougardy
We prove that the approximation ratio of the greedy algorithm for the metric Traveling Salesman Problem is . Moreover, we prove that the same result also holds for graph…
On the Shadow Simplex Method for Curved Polyhedra
Daniel Dadush, Nicolai Hähnle
We study the simplex method over polyhedra satisfying certain "discrete curvature" lower bounds, which enforce that the boundary always meets vertices at sharp angles. Motivated by…
Confirmation of a Star Formation Bias in Type Ia Supernova Distances and its Effect on Measurement of the Hubble Constant
M. Rigault, G. Aldering, M. Kowalski +35
Previously we used the Nearby Supernova Factory sample to show that SNe~Ia having locally star-forming environments are dimmer than SNe~Ia having locally passive environments.Here…
The SKA Mid-frequency All-sky Continuum Survey: Discovering the unexpected and transforming radio-astronomy
Ray P. Norris, Kaustuv Basu, Michael Brown +5
We show that, in addition to specific science goals, there is a strong case for conducting an all-sky (i.e. the visible 3-pi steradians) SKA continuum survey which does not fit nea…
The evolution of the cluster optical galaxy luminosity function between z=0.4 and 0.9 in the DAFT/FADA survey
Nicolas Martinet, Florence Durret, Loic Guennou +8
We compute optical galaxy luminosity functions (GLFs) in the B, V, R, and I rest-frame bands for one of the largest medium-to-high-redshift (0.4 < z < 0.9) cluster samples to date…
A Proof for the Mode Stability of a Self-similar Wave Map
Ovidiu Costin, Roland Donninger, Xiaoyue Xia
We study the fundamental self-similar solution to the SU(2) sigma model, found by Shatah and Turok-Spergel. We give a rigorous proof for its mode stability. Based on earlier result…
Type Ia Supernova Distance Modulus Bias and Dispersion From K-correction Errors: A Direct Measurement Using Lightcurve Fits to Observed Spectral Time Series
C. Saunders, G. Aldering, P. Antilogus +34
We estimate systematic errors due to K-corrections in standard photometric analyses of high redshift Type Ia supernovae. Errors due to K-correction occur when the spectral template…
The inhomogeneous ISM toward PKS1830-211 SW - A detailed view on molecular gas at a look-back time of 7.5 Gyr
A. Schulz, C. Henkel, K. M. Menten +4
Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the south-western source of the gravitational lens system PKS…
Solving Totally Unimodular LPs with the Shadow Vertex Algorithm
Tobias Brunsch, Anna Großwendt, Heiko Röglin
We show that the shadow vertex simplex algorithm can be used to solve linear programs in strongly polynomial time with respect to the number of variables, the number of con…
Precision nucleon-nucleon potential at fifth order in the chiral expansion
E. Epelbaum, H. Krebs, U. -G. Meißner
We present a nucleon-nucleon potential at fifth order in chiral effective field theory. We find a substantial improvement in the description of nucleon-nucleon phase shifts as comp…
Constraints on single-degenerate Chandrasekhar mass progenitors of Type Iax supernovae
Zheng-Wei Liu, Takashi J. Moriya, Richard J. Stancliffe +1
SNe Iax are proposed as one new sub-class of SNe Ia. SNe Iax have been estimated to account for ~5-30% of the total SN Ia rate, and most SNe Iax have been discovered in late-type g…
Constraining Very High Mass Population III Stars through He II Emission in Galaxy BDF-521 at z = 7.01
Zheng Cai, Xiaohui Fan, Linhua Jiang +4
Numerous theoretical models have long proposed that a strong He II 1640 emission line is the most prominent and unique feature of massive Population III (Pop III) stars in high red…
Orbital and physical properties of the Ori Aa,Ab,B triple system
Simón-Díaz, J. A. Caballero, J. Lorenzo +11
We provide a complete characterization of the astrophysical properties of the Ori Aa,Ab,B hierarchical triple system, and an improved set of orbital parameters for the highly e…
The occurrence of classical Cepheids in binary systems
Hilding R. Neilson, Fabian R. N. Schneider, Robert G. Izzard +2
Classical Cepheids, like binary stars, are laboratories for stellar evolution and Cepheids in binary systems are especially powerful ones. About one-third of Galactic Cepheids are…
Chemo-dynamical evolution of tidal dwarf galaxies. II. The long-term evolution and influence of a tidal field
Sylvia Ploeckinger, Simone Recchi, Gerhard Hensler +1
In a series of papers, we present detailed chemo-dynamical simulations of tidal dwarf galaxies (TDGs). After the first paper, where we focused on the very early evolution, we prese…
Strings of Minimal 6d SCFTs
Babak Haghighat, Albrecht Klemm, Guglielmo Lockhart +1
We study strings associated with minimal 6d SCFTs, which by definition have only one string charge and no Higgs branch. These theories are labelled by a number n with 1 <= n <= 8 o…
The ALFALFA "Almost Darks" Campaign: Pilot VLA HI Observations of Five High Mass-to-Light Ratio Systems
John M. Cannon, Charlotte P. Martinkus, Lukas Leisman +13
We present VLA HI spectral line imaging of 5 sources discovered by ALFALFA. These targets are drawn from a larger sample of systems that were not uniquely identified with optical c…
Do bound states exist?
J. Haidenbauer, Ulf-G. Meißner, S. Petschauer
The existence of baryon-baryon bound states in the strangeness sector is examined in the framework of SU(3) chiral effective field theory. Specifically, the role of SU(3) symmetry…
Far-infrared excess emission as a tracer of disk-halo interaction
Daniel Lenz, Jürgen Kerp, Lars Flöer +3
Given the current and past star-formation in the Milky Way in combination with the limited gas supply, the re-fuelling of the reservoir of cool gas is an important aspect of Galact…
A conditional strong large deviation result and a functional central limit theorem for the rate function
Anton Bovier, Hannah Mayer
We study the large deviation behaviour of , where and are sequences of real-valued, independent and ide…
The formation of NGC 3603 young starburst cluster: "prompt" hierarchical assembly or monolithic starburst?
Sambaran Banerjee, Pavel Kroupa
The formation of very young massive clusters or "starburst" clusters is currently one of the most widely debated topic in astronomy. The classical notion dictates that a star clust…
How important is the seizure onset zone for seizure dynamics?
Christian Geier, Stephan Bialonski, Christian E. Elger +1
Purpose: Research into epileptic networks has recently allowed deeper insights into the epileptic process. Here we investigated the importance of individual network nodes for seizu…
The hard edge tacnode process and the hard edge Pearcey process with non-intersecting squared Bessel paths
Steven Delvaux, Bálint Vető
A system of non-intersecting squared Bessel processes is considered which all start from one point and they all return to another point. Under the scaling of the starting and endin…
Ab initio lattice results for Fermi polarons in two dimensions
Shahin Bour, Dean Lee, H. -W. Hammer +1
We investigate the attractive Fermi polaron problem in two dimensions using non-perturbative Monte Carlo simulations. We introduce a new Monte Carlo algorithm called the impurity l…