The X-ray telescope onboard Suzaku

Peter J. Serlemitsos; Yang Soong; Kai Wing Chan; Takashi Okajima; John P. Lehan; Yoshitomo Maeda; Kei Itoh; Hideyuki Mori; Ryo Iizuka; Akiharu Itoh; Hirohiko Indue; Shunsaku Okada; Yushi Yokoyama; Yumi Itoh; Masatoshi Ebara; Ryoko Nakamura; Kensuke Suzuki; Manabu Ishida; Akira Hayakawa; Chiaki Inoue; Satoshi Okuma; Ren Kubota; Masaki Suzuki; Takeyuki Osawa; Koujun Yamashita; Hideyo Kunieda; Yuzuru Tawara; Yasushi Ogasaka; Akihiro Furuzawa; Keisuke Tamura; Ryo Shibata; Yoshito Haba; Masataka Naitou; Kazutami Mlsakl

doi:10.1093/pasj/59.sp1.s9

The X-ray telescope onboard Suzaku

Peter J. Serlemitsos, Yang Soong, Kai Wing Chan, Takashi Okajima, John P. Lehan, Yoshitomo Maeda, Kei Itoh, Hideyuki Mori, Ryo Iizuka, Akiharu Itoh, Hirohiko Indue, Shunsaku Okada, Yushi Yokoyama, Yumi Itoh, Masatoshi Ebara, Ryoko Nakamura, Kensuke Suzuki, Manabu Ishida, Akira Hayakawa, Chiaki InoueSatoshi Okuma, Ren Kubota, Masaki Suzuki, Takeyuki Osawa, Koujun Yamashita, Hideyo Kunieda, Yuzuru Tawara, Yasushi Ogasaka, Akihiro Furuzawa, Keisuke Tamura, Ryo Shibata, Yoshito Haba, Masataka Naitou, Kazutami Mlsakl

Research output: Contribution to journal › Article › peer-review

417 Citations (Scopus)

Abstract

We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3.′6, to 1.′'8-2.′3 for all four XRT-I modules. The optical axes are found to be distributed within a radius of 1.′3, which makes the observation efficiency of all the XRTs more than 97% at the XIS-default observing position. The vignetting over the XIS field of view predicted via ray-tracing coincides with that measured for observations of the Crab Nebula to within ∼ 10%. Contemporaneous fits of a power law to all of the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor and Seward (1974, AJ, 79, 995) to within ∼ 2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations.

Original language	English
Pages (from-to)	S9-S21
Journal	Publications of the Astronomical Society of Japan
Volume	59
Issue number	1 SPEC. ISS.
DOIs	https://doi.org/10.1093/pasj/59.sp1.s9
Publication status	Published - 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/pasj/59.sp1.s9

Cite this

Serlemitsos, P. J., Soong, Y., Chan, K. W., Okajima, T., Lehan, J. P., Maeda, Y., Itoh, K., Mori, H., Iizuka, R., Itoh, A., Indue, H., Okada, S., Yokoyama, Y., Itoh, Y., Ebara, M., Nakamura, R., Suzuki, K., Ishida, M., Hayakawa, A., ... Mlsakl, K. (2007). The X-ray telescope onboard Suzaku. Publications of the Astronomical Society of Japan, 59(1 SPEC. ISS.), S9-S21. https://doi.org/10.1093/pasj/59.sp1.s9

@article{edd5196621674d27b20bfdb34a61ba52,

title = "The X-ray telescope onboard Suzaku",

abstract = "We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3.′6, to 1.′'8-2.′3 for all four XRT-I modules. The optical axes are found to be distributed within a radius of 1.′3, which makes the observation efficiency of all the XRTs more than 97% at the XIS-default observing position. The vignetting over the XIS field of view predicted via ray-tracing coincides with that measured for observations of the Crab Nebula to within ∼ 10%. Contemporaneous fits of a power law to all of the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor and Seward (1974, AJ, 79, 995) to within ∼ 2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations.",

author = "Serlemitsos, {Peter J.} and Yang Soong and Chan, {Kai Wing} and Takashi Okajima and Lehan, {John P.} and Yoshitomo Maeda and Kei Itoh and Hideyuki Mori and Ryo Iizuka and Akiharu Itoh and Hirohiko Indue and Shunsaku Okada and Yushi Yokoyama and Yumi Itoh and Masatoshi Ebara and Ryoko Nakamura and Kensuke Suzuki and Manabu Ishida and Akira Hayakawa and Chiaki Inoue and Satoshi Okuma and Ren Kubota and Masaki Suzuki and Takeyuki Osawa and Koujun Yamashita and Hideyo Kunieda and Yuzuru Tawara and Yasushi Ogasaka and Akihiro Furuzawa and Keisuke Tamura and Ryo Shibata and Yoshito Haba and Masataka Naitou and Kazutami Mlsakl",

year = "2007",

doi = "10.1093/pasj/59.sp1.s9",

language = "English",

volume = "59",

pages = "S9--S21",

journal = "Publications of the Astronomical Society of Japan",

issn = "0004-6264",

publisher = "Oxford University Press",

number = "1 SPEC. ISS.",

}

Serlemitsos, PJ, Soong, Y, Chan, KW, Okajima, T, Lehan, JP, Maeda, Y, Itoh, K, Mori, H, Iizuka, R, Itoh, A, Indue, H, Okada, S, Yokoyama, Y, Itoh, Y, Ebara, M, Nakamura, R, Suzuki, K, Ishida, M, Hayakawa, A, Inoue, C, Okuma, S, Kubota, R, Suzuki, M, Osawa, T, Yamashita, K, Kunieda, H, Tawara, Y, Ogasaka, Y, Furuzawa, A, Tamura, K, Shibata, R, Haba, Y, Naitou, M & Mlsakl, K 2007, 'The X-ray telescope onboard Suzaku', Publications of the Astronomical Society of Japan, vol. 59, no. 1 SPEC. ISS., pp. S9-S21. https://doi.org/10.1093/pasj/59.sp1.s9

TY - JOUR

T1 - The X-ray telescope onboard Suzaku

AU - Serlemitsos, Peter J.

AU - Soong, Yang

AU - Chan, Kai Wing

AU - Okajima, Takashi

AU - Lehan, John P.

AU - Maeda, Yoshitomo

AU - Itoh, Kei

AU - Mori, Hideyuki

AU - Iizuka, Ryo

AU - Itoh, Akiharu

AU - Indue, Hirohiko

AU - Okada, Shunsaku

AU - Yokoyama, Yushi

AU - Itoh, Yumi

AU - Ebara, Masatoshi

AU - Nakamura, Ryoko

AU - Suzuki, Kensuke

AU - Ishida, Manabu

AU - Hayakawa, Akira

AU - Inoue, Chiaki

AU - Okuma, Satoshi

AU - Kubota, Ren

AU - Suzuki, Masaki

AU - Osawa, Takeyuki

AU - Yamashita, Koujun

AU - Kunieda, Hideyo

AU - Tawara, Yuzuru

AU - Ogasaka, Yasushi

AU - Furuzawa, Akihiro

AU - Tamura, Keisuke

AU - Shibata, Ryo

AU - Haba, Yoshito

AU - Naitou, Masataka

AU - Mlsakl, Kazutami

PY - 2007

Y1 - 2007

N2 - We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3.′6, to 1.′'8-2.′3 for all four XRT-I modules. The optical axes are found to be distributed within a radius of 1.′3, which makes the observation efficiency of all the XRTs more than 97% at the XIS-default observing position. The vignetting over the XIS field of view predicted via ray-tracing coincides with that measured for observations of the Crab Nebula to within ∼ 10%. Contemporaneous fits of a power law to all of the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor and Seward (1974, AJ, 79, 995) to within ∼ 2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations.

AB - We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3.′6, to 1.′'8-2.′3 for all four XRT-I modules. The optical axes are found to be distributed within a radius of 1.′3, which makes the observation efficiency of all the XRTs more than 97% at the XIS-default observing position. The vignetting over the XIS field of view predicted via ray-tracing coincides with that measured for observations of the Crab Nebula to within ∼ 10%. Contemporaneous fits of a power law to all of the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor and Seward (1974, AJ, 79, 995) to within ∼ 2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations.

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U2 - 10.1093/pasj/59.sp1.s9

DO - 10.1093/pasj/59.sp1.s9

M3 - Article

AN - SCOPUS:34047141568

SN - 0004-6264

VL - 59

SP - S9-S21

JO - Publications of the Astronomical Society of Japan

JF - Publications of the Astronomical Society of Japan

IS - 1 SPEC. ISS.

ER -

The X-ray telescope onboard Suzaku

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