429 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Massachusetts Institute of TechnologyUS50 papers
- Koç UniversityTR46 papers
- Feza Gürsey InstituteTR30 papers
- Boğaziçi UniversityTR28 papers
- Middle East Technical UniversityTR25 papers
- University of CambridgeGB22 papers
- University of OxfordGB21 papers
- University of ManchesterGB20 papers
- Fermi National Accelerator LaboratoryUS19 papers
- Kansas State UniversityUS19 papers
- University of ChicagoUS19 papers
- Columbia UniversityUS18 papers
11 papers · 1 filter
Enumeration of sequences with large alphabets
M. Oguzhan Kulekci
This study focuses on efficient schemes for enumerative coding of --ary sequences by mainly borrowing ideas from Öktem & Astola's \cite{Oktem99} hierarchical enumerative coding…
A memory versus compression ratio trade-off in PPM via compressed context modeling
M. Oguzhan Kulekci
Since its introduction prediction by partial matching (PPM) has always been a de facto gold standard in lossless text compression, where many variants improving the compression rat…
Online Recovery Guarantees and Analytical Results for OMP
Nazim Burak Karahanoglu, Hakan Erdogan
Orthogonal Matching Pursuit (OMP) is a simple, yet empirically competitive algorithm for sparse recovery. Recent developments have shown that OMP guarantees exact recovery of K-spa…
The first optical light from the supernova remnant G182.4+4.3 located in the Galactic anti-centre region
A. Sezer, F. Gok, E. Aktekin
We report the discovery of optical filamentary and diffuse emission from G182.4+4.3 using 1.5-m Russian-Turkish telescope. We present the optical CCD images obtained with Halpha fi…
Planck intermediate results. VIII. Filaments between interacting clusters
Planck Collaboration, P. A. R. Ade, N. Aghanim +208
About half of the baryons of the Universe are expected to be in the form of filaments of hot and low density intergalactic medium. Most of these baryons remain undetected even by t…
Planck intermediate results. X. Physics of the hot gas in the Coma cluster
Planck Collaboration, P. A. R. Ade, N. Aghanim +207
We present an analysis of Planck satellite data on the Coma Cluster observed via the Sunyaev-Zeldovich effect. Planck is able, for the first time, to detect SZ emission up to r ~ 3…
Planck Intermediate Results. V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect
Planck Collaboration, P. A. R. Ade, N. Aghanim +214
Taking advantage of the all-sky coverage and broad frequency range of the Planck satellite, we study the Sunyaev-Zeldovich (SZ) and pressure profiles of 62 nearby massive clusters…
Strong Gravity Effects of Rotating Black Holes: Quasiperiodic Oscillations
Alikram N. Aliev, Göksel Daylan Esmer, Pamir Talazan
We explore strong gravity effects of the geodesic motion in the spacetime of rotating black holes in general relativity and braneworld gravity. We focus on the description of the m…
A deep X-ray observation of supernova remnant G304.6+0.1 (Kes 17) with Suzaku
F. Gok, A. Sezer
In this paper, we present the analysis of a deep (99.6 ks) observation of G304.6 + 0.1 with the X-ray Imaging Spectrometer on board {\it Suzaku} satellite. The X-ray spectral data…
Type N Spacetimes as Solutions of Extended New Massive Gravity
Haji Ahmedov, Alikram N. Aliev
We study algebraic type N spacetimes in the extended new massive gravity (NMG), considering both the Born-Infeld model (BI-NMG) and the model of NMG with any finite order curvature…
Suzaku study of centrally brightened supernova remnant G272.2-3.2
A. Sezer, F. Gok
In this work, the results from Suzaku observation of Galactic supernova remnant G272.2-3.2 are presented. Spectra of G272.2-3.2 are well fitted by a single-temperature variable abu…