In-flight calibration of the Swift XRT point spread function

A. Moretti; S. Campana; T. Mineo; P. Romano; A. F. Abbey; L. Angelini; A. Beardmore; W. Burkert; D. N. Burrows; M. Capalbi; G. Chincarini; O. Citterio; G. Cusumano; M. J. Freyberg; P. Giommi; M. R. Goad; O. Godet; G. D. Hartner; J. E. Hill; J. Kennea; V. La Parola; V. Mangano; D. Morris; J. A. Nousek; J. Osborne; K. Page; C. Pagani; M. Perri; G. Tagliaferri; F. Tamburelli; A. Wells

doi:10.1117/12.617164

In-flight calibration of the Swift XRT point spread function

A. Moretti, S. Campana, T. Mineo, P. Romano, A. F. Abbey, L. Angelini, A. Beardmore, W. Burkert, D. N. Burrows, M. Capalbi, G. Chincarini, O. Citterio, G. Cusumano, M. J. Freyberg, P. Giommi, M. R. Goad, O. Godet, G. D. Hartner, J. E. Hill, J. KenneaV. La Parola, V. Mangano, D. Morris, J. A. Nousek, J. Osborne, K. Page, C. Pagani, M. Perri, G. Tagliaferri, F. Tamburelli, A. Wells

Astronomy & Astrophysics

Research output: Contribution to journal › Conference article › peer-review

18 Citations (SciVal)

Abstract

The Swift X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2-10 keV. Swift was successfully launched on 2004 November 20. Here we report the results of the analysis of Swift XRT Point Spread Function (PSF) as measured in the first four months of the mission during the instrument calibration phase. The analysis includes the study of the PSF of different point-like sources both on-axis and off-axis with different spectral properties. We compare the in-flight data with the expectations from the on-ground calibration. On the basis of the calibration data we built an analytical model to reproduce the PSF as a function of the energy and the source position within the detector which can be applied in the PSF correction calculation for any extraction region geometry.

Original language	English (US)
Article number	589818
Pages (from-to)	1-9
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5898
DOIs	https://doi.org/10.1117/12.617164
State	Published - Dec 1 2005
Event	UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIV - San Diego, CA, United States Duration: Aug 1 2005 → Aug 3 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.617164

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Moretti, A., Campana, S., Mineo, T., Romano, P., Abbey, A. F., Angelini, L., Beardmore, A., Burkert, W., Burrows, D. N., Capalbi, M., Chincarini, G., Citterio, O., Cusumano, G., Freyberg, M. J., Giommi, P., Goad, M. R., Godet, O., Hartner, G. D., Hill, J. E., ... Wells, A. (2005). In-flight calibration of the Swift XRT point spread function. Proceedings of SPIE - The International Society for Optical Engineering, 5898, 1-9. [589818]. https://doi.org/10.1117/12.617164

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title = "In-flight calibration of the Swift XRT point spread function",

abstract = "The Swift X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2-10 keV. Swift was successfully launched on 2004 November 20. Here we report the results of the analysis of Swift XRT Point Spread Function (PSF) as measured in the first four months of the mission during the instrument calibration phase. The analysis includes the study of the PSF of different point-like sources both on-axis and off-axis with different spectral properties. We compare the in-flight data with the expectations from the on-ground calibration. On the basis of the calibration data we built an analytical model to reproduce the PSF as a function of the energy and the source position within the detector which can be applied in the PSF correction calculation for any extraction region geometry.",

author = "A. Moretti and S. Campana and T. Mineo and P. Romano and Abbey, {A. F.} and L. Angelini and A. Beardmore and W. Burkert and Burrows, {D. N.} and M. Capalbi and G. Chincarini and O. Citterio and G. Cusumano and Freyberg, {M. J.} and P. Giommi and Goad, {M. R.} and O. Godet and Hartner, {G. D.} and Hill, {J. E.} and J. Kennea and {La Parola}, V. and V. Mangano and D. Morris and Nousek, {J. A.} and J. Osborne and K. Page and C. Pagani and M. Perri and G. Tagliaferri and F. Tamburelli and A. Wells",

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doi = "10.1117/12.617164",

language = "English (US)",

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journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIV ; Conference date: 01-08-2005 Through 03-08-2005",

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Moretti, A, Campana, S, Mineo, T, Romano, P, Abbey, AF, Angelini, L, Beardmore, A, Burkert, W, Burrows, DN, Capalbi, M, Chincarini, G, Citterio, O, Cusumano, G, Freyberg, MJ, Giommi, P, Goad, MR, Godet, O, Hartner, GD, Hill, JE, Kennea, J, La Parola, V, Mangano, V, Morris, D, Nousek, JA, Osborne, J, Page, K, Pagani, C, Perri, M, Tagliaferri, G, Tamburelli, F & Wells, A 2005, 'In-flight calibration of the Swift XRT point spread function', Proceedings of SPIE - The International Society for Optical Engineering, vol. 5898, 589818, pp. 1-9. https://doi.org/10.1117/12.617164

TY - JOUR

T1 - In-flight calibration of the Swift XRT point spread function

AU - Moretti, A.

AU - Campana, S.

AU - Mineo, T.

AU - Romano, P.

AU - Abbey, A. F.

AU - Angelini, L.

AU - Beardmore, A.

AU - Burkert, W.

AU - Burrows, D. N.

AU - Capalbi, M.

AU - Chincarini, G.

AU - Citterio, O.

AU - Cusumano, G.

AU - Freyberg, M. J.

AU - Giommi, P.

AU - Goad, M. R.

AU - Godet, O.

AU - Hartner, G. D.

AU - Hill, J. E.

AU - Kennea, J.

AU - La Parola, V.

AU - Mangano, V.

AU - Morris, D.

AU - Nousek, J. A.

AU - Osborne, J.

AU - Page, K.

AU - Pagani, C.

AU - Perri, M.

AU - Tagliaferri, G.

AU - Tamburelli, F.

AU - Wells, A.

PY - 2005/12/1

Y1 - 2005/12/1

N2 - The Swift X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2-10 keV. Swift was successfully launched on 2004 November 20. Here we report the results of the analysis of Swift XRT Point Spread Function (PSF) as measured in the first four months of the mission during the instrument calibration phase. The analysis includes the study of the PSF of different point-like sources both on-axis and off-axis with different spectral properties. We compare the in-flight data with the expectations from the on-ground calibration. On the basis of the calibration data we built an analytical model to reproduce the PSF as a function of the energy and the source position within the detector which can be applied in the PSF correction calculation for any extraction region geometry.

AB - The Swift X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2-10 keV. Swift was successfully launched on 2004 November 20. Here we report the results of the analysis of Swift XRT Point Spread Function (PSF) as measured in the first four months of the mission during the instrument calibration phase. The analysis includes the study of the PSF of different point-like sources both on-axis and off-axis with different spectral properties. We compare the in-flight data with the expectations from the on-ground calibration. On the basis of the calibration data we built an analytical model to reproduce the PSF as a function of the energy and the source position within the detector which can be applied in the PSF correction calculation for any extraction region geometry.

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U2 - 10.1117/12.617164

DO - 10.1117/12.617164

M3 - Conference article

AN - SCOPUS:29344453860

SN - 0277-786X

VL - 5898

SP - 1

EP - 9

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 589818

T2 - UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIV

Y2 - 1 August 2005 through 3 August 2005

ER -

In-flight calibration of the Swift XRT point spread function

Abstract

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