Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry

Michael H. Siegel, Erik A. Hoversten, Peter W.A. Roming, Wayne B. Landsman, Carlos Allende Prieto, Alice A. Breeveld, Peter Brown, Stephen T. Holland, N. P.M. Kuin, Mathew J. Page, Daniel E. Vanden Berk

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

At present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of 11 newfaint (u ∼ 17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer archives and combined with new data from the Swift Ultraviolet Optical Telescope to provide precise photometric measures extending from the near-infrared to the far-ultraviolet. These stars were chosen because they are known to be hot (20,000 < Teff < 50,000 K)DAwhite dwarfs with published Sloan spectra that should be photometrically stable. This careful selection allows us to compare the combined photometry and Sloan spectroscopy tomodels of pure hydrogen atmospheres to both constrain the underlying properties of the white dwarfs and test the ability of white dwarf models to predict the photometric measures. We find that the photometry provides good constraints onwhite dwarf temperatures,whichdemonstrates the ability of Swift/UVOT to investigate the properties of hot luminous stars. We further find that the models reproduce the photometric measures in all 11 passbands to within their systematic uncertainties.Within the limits of ourphotometry,we find the standard stars to be photometrically stable. This success indicates that themodels can be used to calibrate additional filters to our standard system, permitting easier comparison of photometry from heterogeneous sources.The largest source of uncertainty in themodel fitting is the uncertainty in the foreground reddening curve, a problem thatis especially acute in the UV.

Original languageEnglish (US)
Pages (from-to)1215-1225
Number of pages11
JournalAstrophysical Journal
Volume725
Issue number1
DOIs
StatePublished - Dec 10 2010

Fingerprint

photometry
stars
ultraviolet photometry
near infrared
spectroscopy
hydrogen
filter
catalogs
atmosphere
telescopes
galaxies
filters
atmospheres
temperature
curves

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Siegel, M. H., Hoversten, E. A., Roming, P. W. A., Landsman, W. B., Prieto, C. A., Breeveld, A. A., ... Vanden Berk, D. E. (2010). Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry. Astrophysical Journal, 725(1), 1215-1225. https://doi.org/10.1088/0004-637X/725/1/1215
Siegel, Michael H. ; Hoversten, Erik A. ; Roming, Peter W.A. ; Landsman, Wayne B. ; Prieto, Carlos Allende ; Breeveld, Alice A. ; Brown, Peter ; Holland, Stephen T. ; Kuin, N. P.M. ; Page, Mathew J. ; Vanden Berk, Daniel E. / Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry. In: Astrophysical Journal. 2010 ; Vol. 725, No. 1. pp. 1215-1225.
@article{c52ee52296594daebddff44b726373ae,
title = "Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry",
abstract = "At present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of 11 newfaint (u ∼ 17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer archives and combined with new data from the Swift Ultraviolet Optical Telescope to provide precise photometric measures extending from the near-infrared to the far-ultraviolet. These stars were chosen because they are known to be hot (20,000 < Teff < 50,000 K)DAwhite dwarfs with published Sloan spectra that should be photometrically stable. This careful selection allows us to compare the combined photometry and Sloan spectroscopy tomodels of pure hydrogen atmospheres to both constrain the underlying properties of the white dwarfs and test the ability of white dwarf models to predict the photometric measures. We find that the photometry provides good constraints onwhite dwarf temperatures,whichdemonstrates the ability of Swift/UVOT to investigate the properties of hot luminous stars. We further find that the models reproduce the photometric measures in all 11 passbands to within their systematic uncertainties.Within the limits of ourphotometry,we find the standard stars to be photometrically stable. This success indicates that themodels can be used to calibrate additional filters to our standard system, permitting easier comparison of photometry from heterogeneous sources.The largest source of uncertainty in themodel fitting is the uncertainty in the foreground reddening curve, a problem thatis especially acute in the UV.",
author = "Siegel, {Michael H.} and Hoversten, {Erik A.} and Roming, {Peter W.A.} and Landsman, {Wayne B.} and Prieto, {Carlos Allende} and Breeveld, {Alice A.} and Peter Brown and Holland, {Stephen T.} and Kuin, {N. P.M.} and Page, {Mathew J.} and {Vanden Berk}, {Daniel E.}",
year = "2010",
month = "12",
day = "10",
doi = "10.1088/0004-637X/725/1/1215",
language = "English (US)",
volume = "725",
pages = "1215--1225",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Siegel, MH, Hoversten, EA, Roming, PWA, Landsman, WB, Prieto, CA, Breeveld, AA, Brown, P, Holland, ST, Kuin, NPM, Page, MJ & Vanden Berk, DE 2010, 'Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry', Astrophysical Journal, vol. 725, no. 1, pp. 1215-1225. https://doi.org/10.1088/0004-637X/725/1/1215

Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry. / Siegel, Michael H.; Hoversten, Erik A.; Roming, Peter W.A.; Landsman, Wayne B.; Prieto, Carlos Allende; Breeveld, Alice A.; Brown, Peter; Holland, Stephen T.; Kuin, N. P.M.; Page, Mathew J.; Vanden Berk, Daniel E.

In: Astrophysical Journal, Vol. 725, No. 1, 10.12.2010, p. 1215-1225.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Faint near-ultraviolet/far-ultraviolet standards from swift/uvot, galex, and SDSS photometry

AU - Siegel, Michael H.

AU - Hoversten, Erik A.

AU - Roming, Peter W.A.

AU - Landsman, Wayne B.

AU - Prieto, Carlos Allende

AU - Breeveld, Alice A.

AU - Brown, Peter

AU - Holland, Stephen T.

AU - Kuin, N. P.M.

AU - Page, Mathew J.

AU - Vanden Berk, Daniel E.

PY - 2010/12/10

Y1 - 2010/12/10

N2 - At present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of 11 newfaint (u ∼ 17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer archives and combined with new data from the Swift Ultraviolet Optical Telescope to provide precise photometric measures extending from the near-infrared to the far-ultraviolet. These stars were chosen because they are known to be hot (20,000 < Teff < 50,000 K)DAwhite dwarfs with published Sloan spectra that should be photometrically stable. This careful selection allows us to compare the combined photometry and Sloan spectroscopy tomodels of pure hydrogen atmospheres to both constrain the underlying properties of the white dwarfs and test the ability of white dwarf models to predict the photometric measures. We find that the photometry provides good constraints onwhite dwarf temperatures,whichdemonstrates the ability of Swift/UVOT to investigate the properties of hot luminous stars. We further find that the models reproduce the photometric measures in all 11 passbands to within their systematic uncertainties.Within the limits of ourphotometry,we find the standard stars to be photometrically stable. This success indicates that themodels can be used to calibrate additional filters to our standard system, permitting easier comparison of photometry from heterogeneous sources.The largest source of uncertainty in themodel fitting is the uncertainty in the foreground reddening curve, a problem thatis especially acute in the UV.

AB - At present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of 11 newfaint (u ∼ 17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer archives and combined with new data from the Swift Ultraviolet Optical Telescope to provide precise photometric measures extending from the near-infrared to the far-ultraviolet. These stars were chosen because they are known to be hot (20,000 < Teff < 50,000 K)DAwhite dwarfs with published Sloan spectra that should be photometrically stable. This careful selection allows us to compare the combined photometry and Sloan spectroscopy tomodels of pure hydrogen atmospheres to both constrain the underlying properties of the white dwarfs and test the ability of white dwarf models to predict the photometric measures. We find that the photometry provides good constraints onwhite dwarf temperatures,whichdemonstrates the ability of Swift/UVOT to investigate the properties of hot luminous stars. We further find that the models reproduce the photometric measures in all 11 passbands to within their systematic uncertainties.Within the limits of ourphotometry,we find the standard stars to be photometrically stable. This success indicates that themodels can be used to calibrate additional filters to our standard system, permitting easier comparison of photometry from heterogeneous sources.The largest source of uncertainty in themodel fitting is the uncertainty in the foreground reddening curve, a problem thatis especially acute in the UV.

UR - http://www.scopus.com/inward/record.url?scp=78650005390&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650005390&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/725/1/1215

DO - 10.1088/0004-637X/725/1/1215

M3 - Article

AN - SCOPUS:78650005390

VL - 725

SP - 1215

EP - 1225

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

ER -