SExtractor: Software for source extraction
E. Bertin,E. Bertin,S. Arnouts +2 more
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TLDR
The SExtractor ( Source Extractor) as mentioned in this paper is an automated software that optimally detects, deblends, measures and classifies sources from astronomical images, which is particularly suited to the analysis of large extragalactic surveys.Abstract:
We present the automated techniques we have developed for new software that optimally detects, deblends, measures and classifies sources from astronomical images: SExtractor ( Source Extractor ). We show that a very reliable star/galaxy separation can be achieved on most images using a neural network trained with simulated images. Salient features of SExtractor include its ability to work on very large images, with minimal human intervention, and to deal with a wide variety of object shapes and magnitudes. It is therefore particularly suited to the analysis of large extragalactic surveys.read more
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The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda,and w from the First Year Data Set
Pierre Astier,Julien Guy,Nicolas Regnault,Reynald Pain,Éric Aubourg,David D. Balam,S. Basa,Raymond G. Carlberg,Sebastien Fabbro,Dominique Fouchez,I. M. Hook,D. A. Howell,H. Lafoux,James D. Neill,Nathalie Palanque-Delabrouille,K. Perrett,Christopher J. Pritchet,J. Rich,Mark Sullivan,Richard Taillet,Greg Aldering,P. Antilogus,V. Arsenijevic,Christophe Balland,S. Baumont,J. Bronder,Hélène M. Courtois,Rowan Ellis,M. Filiol,A. C. Gonçalves,Ariel Goobar,D. Guide,D. Hardin,V. Lusset,C. Lidman,Richard G. McMahon,M. Mouchet,A. Mourao,Saul Perlmutter,Saul Perlmutter,P. Ripoche,Charling Tao,Nicholas A. Walton +42 more
TL;DR: In this article, distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS) were presented.
Journal ArticleDOI
Weak Gravitational Lensing
TL;DR: In this article, the authors present the formalism of weak gravitational lensing and light propagation in arbitrary space-times, and discuss how weak-lensing effects can be measured.
Journal ArticleDOI
The Complete Light-curve Sample of Spectroscopically Confirmed SNe Ia from Pan-STARRS1 and Cosmological Constraints from the Combined Pantheon Sample
Daniel Scolnic,David O. Jones,Armin Rest,Armin Rest,Yen-Chen Pan,Ryan Chornock,Ryan J. Foley,M. E. Huber,Richard Kessler,Gautham Narayan,Adam G. Riess,Adam G. Riess,Steven A. Rodney,Edo Berger,D. Brout,Peter Challis,Maria R. Drout,Douglas P. Finkbeiner,Ragnhild Lunnan,Robert P. Kirshner,N. E. Sanders,Edward F. Schlafly,Stephen J. Smartt,Christopher W. Stubbs,John L. Tonry,W. M. Wood-Vasey,Michael Foley,J. Hand,Elizabeth N. Johnson,W. S. Burgett,K. C. Chambers,Peter W. Draper,Klaus W. Hodapp,Nick Kaiser,R. P. Kudritzki,E. A. Magnier,Nigel Metcalfe,F. Bresolin,E. E. E. Gall,Rubina Kotak,M. McCrum,K. W. Smith +41 more
TL;DR: Scolnic et al. as discussed by the authors presented optical light curves, redshifts, and classifications for 365 spectroscopically confirmed Type Ia supernovae (SNe Ia) discovered by the Pan-STARRS1 (PS1) Medium Deep Survey.
Journal ArticleDOI
K-corrections and filter transformations in the ultraviolet, optical, and near infrared
Michael R. Blanton,Sam T. Roweis +1 more
TL;DR: In this article, a nonnegative matrix factorization (NVMF) approach is proposed to construct model-based template sets given a set of heterogeneous photometric and spectroscopic galaxy data.
Journal ArticleDOI
The Great Observatories Origins Deep Survey: Initial Results From Optical and Near-Infrared Imaging
TL;DR: The GOODS survey as mentioned in this paper is based on multi-band imaging data obtained with the Hubble Space Telescope and the Advanced Camera for Surveys (ACS) and covers roughly 320 square arcminutes in the ACS F435W, F606w, F814W, and F850LP bands.
References
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