Publications de Danuta Janina Paraficz

ALMA view of RX J1131-1231: Sub-kpc CO (2-1) mapping of a molecular disk in a lensed star-forming quasar host galaxy

Frédéric Courbin, Danuta Janina Paraficz

2018

ASTErIsM: application of topometric clustering algorithms in automatic galaxy detection and classification

Jean-Paul Richard Kneib, Frédéric Courbin, Danuta Janina Paraficz

We present a study on galaxy detection and shape classification using topometric clustering algorithms. We first use the DBSCAN algorithm to extract, from CCD frames, groups of adjacent pixels with significant fluxes and we then apply the DENCLUE algorithm ...

Oxford Univ Press2016

The Bullet cluster at its best: weighing stars, gas, and dark matter

Jean-Paul Richard Kneib, Danuta Janina Paraficz, Johan Richard

Aims. We present a new strong lensing mass reconstruction of the Bullet cluster (1E 0657-56) at z = 0 : 296, based on WFC3 and ACS HST imaging and VLT/FORS2 spectroscopy. The strong lensing constraints underwent substantial revision compared to previously ...

Edp Sciences S A2016

The PCA Lens-Finder: application to CFHTLS

Jean-Paul Richard Kneib, Frédéric Courbin, Rémy Elie Joseph, Danuta Janina Paraficz, Christoph Ernst René Schäfer

We present the results of a new search for galaxy-scale strong lensing systems in CFHTLS Wide. Our lens-finding technique involves a preselection of potential lens galaxies, applying simple cuts in size and magnitude. We then perform a Principal Component ...

Edp Sciences S A2016