Skip to main content

Research Repository

Advanced Search

Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry

Finkbeiner, D.P.; Schlafly, E.F.; Schlegel, D.J.; Padmanabhan, N.; Jurić, M.; Burgett, W.S.; Chambers, K.C.; Denneau, L.; Draper, P.W.; Flewelling, H.; Hodapp, K.W.; Kaiser, N.; Magnier, E.A.; Metcalfe, N.; Morgan, J.S.; Price, P.A.; Stubbs, C.W.; Tonry, J.L.

Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry Thumbnail


Authors

D.P. Finkbeiner

E.F. Schlafly

D.J. Schlegel

N. Padmanabhan

M. Jurić

W.S. Burgett

K.C. Chambers

L. Denneau

P.W. Draper

H. Flewelling

K.W. Hodapp

N. Kaiser

E.A. Magnier

J.S. Morgan

P.A. Price

C.W. Stubbs

J.L. Tonry



Abstract

We present a recalibration of the Sloan Digital Sky Survey (SDSS) photometry with new flat fields and zero points derived from Pan-STARRS1. Using point-spread function (PSF) photometry of 60 million stars with 16 < r < 20, we derive a model of amplifier gain and flat-field corrections with per-run rms residuals of 3 millimagnitudes (mmag) in griz bands and 15 mmag in u band. The new photometric zero points are adjusted to leave the median in the Galactic north unchanged for compatibility with previous SDSS work. We also identify transient non-photometric periods in SDSS ("contrails") based on photometric deviations co-temporal in SDSS bands. The recalibrated stellar PSF photometry of SDSS and PS1 has an rms difference of {9, 7, 7, 8} mmag in griz, respectively, when averaged over 15' regions.

Citation

Finkbeiner, D., Schlafly, E., Schlegel, D., Padmanabhan, N., Jurić, M., Burgett, W., …Tonry, J. (2016). Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry. Astrophysical Journal, 822(2), Article 66. https://doi.org/10.3847/0004-637x/822/2/66

Journal Article Type Article
Acceptance Date Nov 30, 2015
Online Publication Date May 5, 2016
Publication Date May 10, 2016
Deposit Date May 24, 2016
Publicly Available Date Jun 21, 2016
Journal Astrophysical Journal
Print ISSN 0004-637X
Electronic ISSN 1538-4357
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 822
Issue 2
Article Number 66
DOI https://doi.org/10.3847/0004-637x/822/2/66

Files

Published Journal Article (4.9 Mb)
PDF

Copyright Statement
© 2016. The American Astronomical Society. All rights reserved.





You might also like



Downloadable Citations