S
Susan Tokarz
Researcher at Harvard University
Publications - 30
Citations - 2915
Susan Tokarz is an academic researcher from Harvard University. The author has contributed to research in topics: Galaxy & Stars. The author has an hindex of 18, co-authored 30 publications receiving 2663 citations. Previous affiliations of Susan Tokarz include Smithsonian Astrophysical Observatory.
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Journal ArticleDOI
The 2MASS Redshift Survey: description and data release
John P. Huchra,Lucas M. Macri,Karen L. Masters,Karen L. Masters,Thomas H. Jarrett,Perry Berlind,Michael L. Calkins,Aidan C. Crook,Roc M. Cutri,Pirin Erdogdu,Emilio E. Falco,T. George,Conrad M. Hutcheson,Ofer Lahav,Jeff A. Mader,Jessica Mink,Nathalie Martimbeau,Stephen E. Schneider,Michael F. Skrutskie,Susan Tokarz,Michael Westover +20 more
TL;DR: The 2MASS XSC as mentioned in this paper contains nearly a million galaxies with K_s ≤ 13.5 mag and is essentially complete and mostly unaffected by interstellar extinction and stellar confusion down to a galactic latitude of |b| = 5° for bright galaxies.
Journal ArticleDOI
The Updated Zwicky Catalog (UZC)
Emilio E. Falco,Michael J. Kurtz,Margaret J. Geller,John P. Huchra,J. Peters,Perry Berlind,Douglas J. Mink,Susan Tokarz,Barbara Elwell +8 more
TL;DR: The Zwicky catalog of galaxies (ZC) as discussed by the authors has been the basis for the Center for Astrophysics (CfA) redshift surveys based on it have relied on heterogeneous sets of galaxy coordinates and redshifts.
Journal ArticleDOI
Hectospec, the MMT's 300 Optical Fiber-Fed Spectrograph
Daniel G. Fabricant,Robert G. Fata,John Roll,Edward Hertz,Nelson Caldwell,Thomas Gauron,John C. Geary,Brian McLeod,Andrew Szentgyorgyi,Joseph Zajac,Michael J. Kurtz,Jack Barberis,Henry Bergner,Warren R. Brown,Maureen A. Conroy,Roger Eng,Margaret J. Geller,Richard E. Goddard,Michael F. Honsa,Mark Mueller,Douglas J. Mink,Mark Ordway,Susan Tokarz,Deborah Freedman Woods,William F. Wyatt,Harland W. Epps,Ian P. Dell'Antonio +26 more
TL;DR: The Hectospec as discussed by the authors is a 300 optical fiber fed spectrograph, which was used at the MMT for observing configurations within ∼300 s, and to an accuracy of ∼25 μm.
Journal ArticleDOI
X-Ray and Optical Variability in NGC 4051 and the Nature of Narrow-Line Seyfert 1 Galaxies
Bradley M. Peterson,Ian M. McHardy,Belinda Jane Wilkes,Perry Berlind,R. Bertram,R. Bertram,Michael L. Calkins,Stefan Collier,John P. Huchra,S. Mathur,I. E. Papadakis,J. Peters,Richard W. Pogge,P. Romano,Susan Tokarz,Phil Uttley,Marianne Vestergaard,Robert Wagner,Robert Wagner +18 more
TL;DR: In this paper, the authors report on the results of a three-year program of coordinated X-ray and optical monitoring of the narrow-line Seyfert 1 galaxy NGC 4051.
Journal ArticleDOI
Steps toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XVI. A 13 Year Study of Spectral Variability in NGC 5548
Bradley M. Peterson,Perry Berlind,R. Bertram,R. Bertram,K. Bischoff,N. G. Bochkarev,N. V. Borisov,A. N. Burenkov,A. N. Burenkov,Michael L. Calkins,L. Carrasco,V. H. Chavushyan,Ryan Chornock,Matthias Dietrich,V. T. Doroshenko,O. V. Ezhkova,Alexei V. Filippenko,Andrea M. Gilbert,John P. Huchra,Wolfram Kollatschny,Douglas C. Leonard,Douglas C. Leonard,Weidong Li,V. M. Lyuty,Yu. F. Malkov,Thomas Matheson,Thomas Matheson,N. I. Merkulova,V. P. Mikhailov,Maryam Modjaz,Maryam Modjaz,Christopher A. Onken,R. W. Pogge,V. I. Pronik,B.-C. Qian,P. Romano,Sergey G. Sergeev,E. A. Sergeeva,Alla I. Shapovalova,Alla I. Shapovalova,O. I. Spiridonova,J. Tao,Susan Tokarz,José R. Valdés,V. V. Vlasiuk,R. M. Wagner,R. M. Wagner,Belinda Jane Wilkes +47 more
TL;DR: In this paper, the authors present the final installment of an intensive 13-year study of variations of the optical continuum and broad H beta emission line in the Seyfert 1 galaxy NGC 5548.