R
Robert C. Nichol
Researcher at Institute of Cosmology and Gravitation, University of Portsmouth
Publications - 860
Citations - 176885
Robert C. Nichol is an academic researcher from Institute of Cosmology and Gravitation, University of Portsmouth. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 187, co-authored 851 publications receiving 162994 citations. Previous affiliations of Robert C. Nichol include University of Chicago & South East Physics Network.
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Journal ArticleDOI
The clustering of active galactic nuclei in the sloan digital sky survey
David A. Wake,Christopher J. Miller,Tiziana Di Matteo,Robert C. Nichol,Adrian Pope,Alexander S. Szalay,Alexander G. Gray,Donald P. Schneider,Donald G. York +8 more
TL;DR: In this paper, the authors present the two-point correlation function (2PCF) of narrow-line active galactic nuclei (AGNs) selected within the First Data Release of the Sloan Digital Sky Survey.
Journal ArticleDOI
Near-infrared imaging of 222 nearby Hδ-strong galaxies from the Sloan Digital Sky Survey
TL;DR: In this paper, the authors present UFTI K-band imaging observations of 222 galaxies that are selected from the Sloan Digital Sky Survey to have unusually strong Hδ absorption equivalent widths, W Ω(Hδ) > 4 A.
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Dark Energy Survey Year 1 results: Cross-correlation redshifts - methods and systematics characterization
M. Gatti,P. Vielzeuf,C. Davis,R. Cawthon,Markus Michael Rau,J. DeRose,J. De Vicente,A. Alarcon,Eduardo Rozo,Enrique Gaztanaga,Ben Hoyle,Ramon Miquel,Ramon Miquel,Gary Bernstein,C. Bonnett,A. Carnero Rosell,F. J. Castander,Chihway Chang,L. N. da Costa,Daniel Gruen,J. Gschwend,W. G. Hartley,W. G. Hartley,Huan Lin,Niall MacCrann,M. A. G. Maia,Ricardo L. C. Ogando,A. Roodman,I. Sevilla-Noarbe,Michael Troxel,Risa H. Wechsler,Jacobo Asorey,Tamara M. Davis,Karl Glazebrook,Samuel Hinton,Geraint F. Lewis,C. Lidman,Edward Macaulay,Anais Möller,C. R. O'Neill,N. E. Sommer,S. A. Uddin,Fang Yuan,Bonnie Zhang,T. M. C. Abbott,S. Allam,J. Annis,Keith Bechtol,David Brooks,D. L. Burke,Daniela Carollo,M. Carrasco Kind,J. Carretero,Carlos E. Cunha,C. B. D'Andrea,Darren L. DePoy,Shantanu Desai,Tim Eifler,August E. Evrard,B. Flaugher,Pablo Fosalba,Joshua A. Frieman,Juan Garcia-Bellido,D. W. Gerdes,Daniel A. Goldstein,Daniel A. Goldstein,Robert A. Gruendl,G. Gutierrez,K. Honscheid,J. K. Hoormann,Bhuvnesh Jain,David J. James,Matt J. Jarvis,Tesla E. Jeltema,M. W.G. Johnson,M. D. Johnson,Elisabeth Krause,Kyler Kuehn,S. E. Kuhlmann,N. Kuropatkin,Tenglin Li,Marcos Lima,Jennifer L. Marshall,Peter Melchior,Felipe Menanteau,Felipe Menanteau,Robert C. Nichol,Brian Nord,A. A. Plazas,Kevin Reil,Eli S. Rykoff,Masao Sako,E. J. Sanchez,V. Scarpine,M. S. Schubnell,Erin Sheldon,Mathew Smith,R. C. Smith,Marcelle Soares-Santos,Flavia Sobreira,E. Suchyta,M. E. C. Swanson,Gregory Tarle,Daniel Thomas,Brad E. Tucker,Douglas L. Tucker,Vinu Vikram,Alistair R. Walker,Jochen Weller,Jochen Weller,W. C. Wester,R. C. Wolf +111 more
TL;DR: In this paper, the authors use numerical simulations to characterize the performance of a clustering-based method to calibrate photometric redshift biases and find that these systematic uncertainties dominate the error budget.
Journal ArticleDOI
Photometric Supernova Cosmology with Beams and SDSS-II
Renée Hlozek,Renée Hlozek,Martin Kunz,Martin Kunz,Bruce A. Bassett,Bruce A. Bassett,M. Smith,M. Smith,M. Smith,James Newling,James Newling,Melvin Varughese,Richard Kessler,Joseph P. Bernstein,H. Campbell,Ben Dilday,Ben Dilday,Bridget Falck,Joshua A. Frieman,Joshua A. Frieman,Steve Kuhlmann,Hubert Lampeitl,J. Marriner,Robert C. Nichol,Adam G. Riess,Adam G. Riess,Masao Sako,Donald P. Schneider +27 more
TL;DR: The Bayesian Estimation applied to multiple species (BEAMS) algorithm as mentioned in this paper is a Bayesian framework for using data from multiple species in statistical inference when one has the probability that each data point belongs to a given species, corresponding in this context to different types of SNe with their probabilities derived from their multi-band light curves.
Journal ArticleDOI
Fitting Methods for Baryon Acoustic Oscillations in the Lyman-{\alpha} Forest Fluctuations in BOSS Data Release 9
D. Kirkby,Daniel Margala,Anže Slosar,Stephen Bailey,Nicolás G. Busca,Timothée Delubac,James Rich,Michael Blomqvist,Joel R. Brownstein,Bill Carithers,Rupert A. C. Croft,Kyle S. Dawson,Andreu Font-Ribera,Jordi Miralda-Escudé,Adam D. Myers,Robert C. Nichol,Nathalie Palanque-Delabrouille,Isabelle Pâris,Patrick Petitjean,Graziano Rossi,David J. Schlegel,Donald P. Schneider,Matteo Viel,David H. Weinberg,Christophe Yèche +24 more
TL;DR: In this article, the authors describe fitting methods developed to analyze fluctuations in the Lyman-alpha forest and measure the parameters of baryon acoustic oscillations (BAO) and apply their methods to BOSS Data Release 9.