A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773

Richard Saunders, Rüdiger Kneissl, Keith Grainge, William F. Grainger, Michael E. Jones, Alessia Maggi, Rhiju Das, Alastair C. Edge, Anthony N. Lasenby, G. G. Pooley, Shigeru J. Miyoshi, Taisuke Tsuruta, Koujun Yamashita, Yuzuru Tawara, Akihiro Furuzawa, Akihiro Harada, Izamu Hatsukade

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We present new Ryle Telescope (RT) observations of the Sunyaev-Zel'dovich (SZ) decrement from the cluster Abell 773. The field contains a number of faint radio sources that required careful subtraction. We use ASCA observations to measure the gas temperature and a ROSAT HRI image to model the gas density distribution. Normalizing the gas distribution to fit the RT visibilities returns a value of HQ of 77-15+19 km s-1 Mpc-1 (1σ errors) for an Einstein - de Sitter universe, or 85-17+20 km s-1 Mpc-1 for a flat model with ΩA = 0.7. The errors quoted include estimates of the effects of the principal errors: noise in the SZ measurement, gas temperature uncertainty and line-of-sight depth uncertainty.

Original languageEnglish
Pages (from-to)937-940
Number of pages4
JournalMonthly Notices of the Royal Astronomical Society
Volume341
Issue number3
DOIs
Publication statusPublished - 21-05-2003

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telescopes
gas temperature
gas
normalizing
gas density
visibility
subtraction
line of sight
density distribution
universe
temperature
radio
estimates
gases
distribution
effect

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Saunders, R., Kneissl, R., Grainge, K., Grainger, W. F., Jones, M. E., Maggi, A., ... Hatsukade, I. (2003). A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773. Monthly Notices of the Royal Astronomical Society, 341(3), 937-940. https://doi.org/10.1046/j.1365-8711.2003.06467.x
Saunders, Richard ; Kneissl, Rüdiger ; Grainge, Keith ; Grainger, William F. ; Jones, Michael E. ; Maggi, Alessia ; Das, Rhiju ; Edge, Alastair C. ; Lasenby, Anthony N. ; Pooley, G. G. ; Miyoshi, Shigeru J. ; Tsuruta, Taisuke ; Yamashita, Koujun ; Tawara, Yuzuru ; Furuzawa, Akihiro ; Harada, Akihiro ; Hatsukade, Izamu. / A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773. In: Monthly Notices of the Royal Astronomical Society. 2003 ; Vol. 341, No. 3. pp. 937-940.
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abstract = "We present new Ryle Telescope (RT) observations of the Sunyaev-Zel'dovich (SZ) decrement from the cluster Abell 773. The field contains a number of faint radio sources that required careful subtraction. We use ASCA observations to measure the gas temperature and a ROSAT HRI image to model the gas density distribution. Normalizing the gas distribution to fit the RT visibilities returns a value of HQ of 77-15+19 km s-1 Mpc-1 (1σ errors) for an Einstein - de Sitter universe, or 85-17+20 km s-1 Mpc-1 for a flat model with ΩA = 0.7. The errors quoted include estimates of the effects of the principal errors: noise in the SZ measurement, gas temperature uncertainty and line-of-sight depth uncertainty.",
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Saunders, R, Kneissl, R, Grainge, K, Grainger, WF, Jones, ME, Maggi, A, Das, R, Edge, AC, Lasenby, AN, Pooley, GG, Miyoshi, SJ, Tsuruta, T, Yamashita, K, Tawara, Y, Furuzawa, A, Harada, A & Hatsukade, I 2003, 'A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773', Monthly Notices of the Royal Astronomical Society, vol. 341, no. 3, pp. 937-940. https://doi.org/10.1046/j.1365-8711.2003.06467.x

A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773. / Saunders, Richard; Kneissl, Rüdiger; Grainge, Keith; Grainger, William F.; Jones, Michael E.; Maggi, Alessia; Das, Rhiju; Edge, Alastair C.; Lasenby, Anthony N.; Pooley, G. G.; Miyoshi, Shigeru J.; Tsuruta, Taisuke; Yamashita, Koujun; Tawara, Yuzuru; Furuzawa, Akihiro; Harada, Akihiro; Hatsukade, Izamu.

In: Monthly Notices of the Royal Astronomical Society, Vol. 341, No. 3, 21.05.2003, p. 937-940.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A measurement of H0 from Ryle Telescope, ASCA and ROSAT observations of Abell 773

AU - Saunders, Richard

AU - Kneissl, Rüdiger

AU - Grainge, Keith

AU - Grainger, William F.

AU - Jones, Michael E.

AU - Maggi, Alessia

AU - Das, Rhiju

AU - Edge, Alastair C.

AU - Lasenby, Anthony N.

AU - Pooley, G. G.

AU - Miyoshi, Shigeru J.

AU - Tsuruta, Taisuke

AU - Yamashita, Koujun

AU - Tawara, Yuzuru

AU - Furuzawa, Akihiro

AU - Harada, Akihiro

AU - Hatsukade, Izamu

PY - 2003/5/21

Y1 - 2003/5/21

N2 - We present new Ryle Telescope (RT) observations of the Sunyaev-Zel'dovich (SZ) decrement from the cluster Abell 773. The field contains a number of faint radio sources that required careful subtraction. We use ASCA observations to measure the gas temperature and a ROSAT HRI image to model the gas density distribution. Normalizing the gas distribution to fit the RT visibilities returns a value of HQ of 77-15+19 km s-1 Mpc-1 (1σ errors) for an Einstein - de Sitter universe, or 85-17+20 km s-1 Mpc-1 for a flat model with ΩA = 0.7. The errors quoted include estimates of the effects of the principal errors: noise in the SZ measurement, gas temperature uncertainty and line-of-sight depth uncertainty.

AB - We present new Ryle Telescope (RT) observations of the Sunyaev-Zel'dovich (SZ) decrement from the cluster Abell 773. The field contains a number of faint radio sources that required careful subtraction. We use ASCA observations to measure the gas temperature and a ROSAT HRI image to model the gas density distribution. Normalizing the gas distribution to fit the RT visibilities returns a value of HQ of 77-15+19 km s-1 Mpc-1 (1σ errors) for an Einstein - de Sitter universe, or 85-17+20 km s-1 Mpc-1 for a flat model with ΩA = 0.7. The errors quoted include estimates of the effects of the principal errors: noise in the SZ measurement, gas temperature uncertainty and line-of-sight depth uncertainty.

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U2 - 10.1046/j.1365-8711.2003.06467.x

DO - 10.1046/j.1365-8711.2003.06467.x

M3 - Article

VL - 341

SP - 937

EP - 940

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 3

ER -