Photometric calibration of the Swift ultraviolet/optical telescope

T. S. Poole; A. A. Breeveld; M. J. Page; W. Landsman; S. T. Holland; P. Roming; N. P.M. Kuin; P. J. Brown; C. Gronwall; S. Hunsberger; S. Koch; K. O. Mason; P. Schady; D. Vanden Berk; A. J. Blustin; P. Boyd; P. Broos; M. Carter; M. M. Chester; A. Cucchiara; B. Hancock; H. Huckle; S. Immler; M. Ivanushkina; T. Kennedy; F. Marshall; A. Morgan; S. B. Pandey; M. De Pasquale; P. J. Smith; M. Still

doi:10.1111/j.1365-2966.2007.12563.x

Photometric calibration of the Swift ultraviolet/optical telescope

T. S. Poole, A. A. Breeveld, M. J. Page, W. Landsman, S. T. Holland, P. Roming, N. P.M. Kuin, P. J. Brown, C. Gronwall, S. Hunsberger, S. Koch, K. O. Mason, P. Schady, D. Vanden Berk, A. J. Blustin, P. Boyd, P. Broos, M. Carter, M. M. Chester, A. CucchiaraB. Hancock, H. Huckle, S. Immler, M. Ivanushkina, T. Kennedy, F. Marshall, A. Morgan, S. B. Pandey, M. De Pasquale, P. J. Smith, M. Still

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Abstract

We present the photometric calibration of the Swift Ultraviolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations, conversion factors for count rates to flux and the photometric zero-points (which are accurate to better than 4 per cent) for each of the seven UVOT broad-band filters. The calibration was performed with observations of standard stars and standard star fields that represent a wide range of spectral star types. The calibration results include the position-dependent uniformity, and instrument response over the 1600-8000 Å operational range. Because the UVOT is a photon-counting instrument, we also discuss the effect of coincidence loss on the calibration results. We provide practical guidelines for using the calibration in UVOT data analysis. The results presented here supersede previous calibration results.

Original language	English (US)
Pages (from-to)	627-645
Number of pages	19
Journal	Monthly Notices of the Royal Astronomical Society
Volume	383
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2007.12563.x
State	Published - Jan 2008

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1111/j.1365-2966.2007.12563.x

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Poole, T. S., Breeveld, A. A., Page, M. J., Landsman, W., Holland, S. T., Roming, P., Kuin, N. P. M., Brown, P. J., Gronwall, C., Hunsberger, S., Koch, S., Mason, K. O., Schady, P., Berk, D. V., Blustin, A. J., Boyd, P., Broos, P., Carter, M., Chester, M. M., ... Still, M. (2008). Photometric calibration of the Swift ultraviolet/optical telescope. Monthly Notices of the Royal Astronomical Society, 383(2), 627-645. https://doi.org/10.1111/j.1365-2966.2007.12563.x

@article{be0741f61ef74ddb8f647980bc9a87b0,

title = "Photometric calibration of the Swift ultraviolet/optical telescope",

abstract = "We present the photometric calibration of the Swift Ultraviolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations, conversion factors for count rates to flux and the photometric zero-points (which are accurate to better than 4 per cent) for each of the seven UVOT broad-band filters. The calibration was performed with observations of standard stars and standard star fields that represent a wide range of spectral star types. The calibration results include the position-dependent uniformity, and instrument response over the 1600-8000 {\AA} operational range. Because the UVOT is a photon-counting instrument, we also discuss the effect of coincidence loss on the calibration results. We provide practical guidelines for using the calibration in UVOT data analysis. The results presented here supersede previous calibration results.",

author = "Poole, {T. S.} and Breeveld, {A. A.} and Page, {M. J.} and W. Landsman and Holland, {S. T.} and P. Roming and Kuin, {N. P.M.} and Brown, {P. J.} and C. Gronwall and S. Hunsberger and S. Koch and Mason, {K. O.} and P. Schady and Berk, {D. Vanden} and Blustin, {A. J.} and P. Boyd and P. Broos and M. Carter and Chester, {M. M.} and A. Cucchiara and B. Hancock and H. Huckle and S. Immler and M. Ivanushkina and T. Kennedy and F. Marshall and A. Morgan and Pandey, {S. B.} and {De Pasquale}, M. and Smith, {P. J.} and M. Still",

year = "2008",

month = jan,

doi = "10.1111/j.1365-2966.2007.12563.x",

language = "English (US)",

volume = "383",

pages = "627--645",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

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Poole, TS, Breeveld, AA, Page, MJ, Landsman, W, Holland, ST, Roming, P, Kuin, NPM, Brown, PJ, Gronwall, C, Hunsberger, S, Koch, S, Mason, KO, Schady, P, Berk, DV, Blustin, AJ, Boyd, P, Broos, P, Carter, M, Chester, MM, Cucchiara, A, Hancock, B, Huckle, H, Immler, S, Ivanushkina, M, Kennedy, T, Marshall, F, Morgan, A, Pandey, SB, De Pasquale, M, Smith, PJ & Still, M 2008, 'Photometric calibration of the Swift ultraviolet/optical telescope', Monthly Notices of the Royal Astronomical Society, vol. 383, no. 2, pp. 627-645. https://doi.org/10.1111/j.1365-2966.2007.12563.x

TY - JOUR

T1 - Photometric calibration of the Swift ultraviolet/optical telescope

AU - Poole, T. S.

AU - Breeveld, A. A.

AU - Page, M. J.

AU - Landsman, W.

AU - Holland, S. T.

AU - Roming, P.

AU - Kuin, N. P.M.

AU - Brown, P. J.

AU - Gronwall, C.

AU - Hunsberger, S.

AU - Koch, S.

AU - Mason, K. O.

AU - Schady, P.

AU - Berk, D. Vanden

AU - Blustin, A. J.

AU - Boyd, P.

AU - Broos, P.

AU - Carter, M.

AU - Chester, M. M.

AU - Cucchiara, A.

AU - Hancock, B.

AU - Huckle, H.

AU - Immler, S.

AU - Ivanushkina, M.

AU - Kennedy, T.

AU - Marshall, F.

AU - Morgan, A.

AU - Pandey, S. B.

AU - De Pasquale, M.

AU - Smith, P. J.

AU - Still, M.

PY - 2008/1

Y1 - 2008/1

N2 - We present the photometric calibration of the Swift Ultraviolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations, conversion factors for count rates to flux and the photometric zero-points (which are accurate to better than 4 per cent) for each of the seven UVOT broad-band filters. The calibration was performed with observations of standard stars and standard star fields that represent a wide range of spectral star types. The calibration results include the position-dependent uniformity, and instrument response over the 1600-8000 Å operational range. Because the UVOT is a photon-counting instrument, we also discuss the effect of coincidence loss on the calibration results. We provide practical guidelines for using the calibration in UVOT data analysis. The results presented here supersede previous calibration results.

AB - We present the photometric calibration of the Swift Ultraviolet/Optical Telescope (UVOT) which includes: optimum photometric and background apertures, effective area curves, colour transformations, conversion factors for count rates to flux and the photometric zero-points (which are accurate to better than 4 per cent) for each of the seven UVOT broad-band filters. The calibration was performed with observations of standard stars and standard star fields that represent a wide range of spectral star types. The calibration results include the position-dependent uniformity, and instrument response over the 1600-8000 Å operational range. Because the UVOT is a photon-counting instrument, we also discuss the effect of coincidence loss on the calibration results. We provide practical guidelines for using the calibration in UVOT data analysis. The results presented here supersede previous calibration results.

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U2 - 10.1111/j.1365-2966.2007.12563.x

DO - 10.1111/j.1365-2966.2007.12563.x

M3 - Article

AN - SCOPUS:37849041987

SN - 0035-8711

VL - 383

SP - 627

EP - 645

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Photometric calibration of the Swift ultraviolet/optical telescope

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