Improved Photometric Calibrations for Red Stars Observed with the SDSS Photometric Telescope

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dc.creatorDavenport, James R. A.
dc.creatorBochanski, John J.
dc.creatorCovey, Kevin R.
dc.creatorHawley, Suzanne L.
dc.creatorWest, Andrew A.
dc.creatorSchneider, Donald P.
dc.date2007-08-07
dc.date.accessioned2026-07-07T11:18:28Z
dc.date.available2026-07-07T11:18:28Z
dc.descriptionWe present a new set of photometric transformations for red stars observed with the Sloan Digital Sky Survey (SDSS) 0.5-m Photometric Telescope (PT) and the SDSS 2.5-m telescope at the Apache Point Observatory in New Mexico. Nightly PT observations of US Naval Observatory standards are used to determine extinction corrections and calibration terms for SDSS 2.5-m photometry. Systematic differences between the PT and native SDSS 2.5-m {\it ugriz} photometry require conversions between the two systems which have previously been undefined for the reddest stars. By matching $\sim 43,000$ stars observed with both the PT and SDSS 2.5-m, we extend the present relations to include low-mass stars with colors $0.6 \le r-i \le 1.7$. These corrections will allow us to place photometry of bright, low-mass trigonometric parallax stars previously observed with the PT on the 2.5-m system. We present new transformation equations and discuss applications of these data to future low-mass star studies using the SDSS.
dc.description8 Pages, 5 Figures. Accepted to AJ
dc.identifierhttps://arxiv.org/abs/0708.0889
dc.identifierhttp://arxiv.org/abs/0708.0889
dc.identifierAstron.J.134:2430-2434,2007
dc.identifierdoi:10.1086/522054
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193357
dc.subjectAstrophysics
dc.titleImproved Photometric Calibrations for Red Stars Observed with the SDSS Photometric Telescope
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