Abstract
We report the 0.5-10 keV X-ray image and spectrum of Cl 0016 ± 16, which, at a redshift of 0.541, is one of the most distant clusters of galaxies observed with ASCA. The ASCA X-ray image is well represented by an isothermal β model. The best-fit parameters for the core radius (0, .) and β are 016 and 0.7, respectively. However, because of ASCA's moderate spatial resolution, these two parameters are strongly correlated. The observed spectrum within a 6' radius is well fitted by a thin thermal emission model with a plasma temperature of 8.0 ± 1.0 keV. The Sunyaev-Zeldovich (SZ) effect in Cl 0016 ± 16 has been observed by Carlstrom et al. using an interferometer and by Birkinshaw et al. using a single-dish radio telescope. Combining the SZ microwave decrement with the plasma density and temperature profiles derived from our X-ray observation, we obtained a value of the Hubble constant of 47 ± 14 km s-1 Mpc-1 with the profile parameters obtained by interferometric data, and 52 ± 20 km s-1 Mpc-1 with our best-fit shape parameters and single-dish telescope data.
| Original language | English |
|---|---|
| Pages (from-to) | 35-41 |
| Number of pages | 7 |
| Journal | Astrophysical Journal |
| Volume | 504 |
| Issue number | 1 PART I |
| DOIs | |
| Publication status | Published - 01-01-1998 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
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ASCA observation of the distant cluster of galaxies Cl 0016 + 16 and implication for H0. / Furuzawa, A.; Tawara, Y.; Kunieda, H.; Yamashita, K.; Sonobe, T.; Tanaka, Y.; Mushotzky, R.
In: Astrophysical Journal, Vol. 504, No. 1 PART I, 01.01.1998, p. 35-41.Research output: Contribution to journal › Article
TY - JOUR
T1 - ASCA observation of the distant cluster of galaxies Cl 0016 + 16 and implication for H0
AU - Furuzawa, A.
AU - Tawara, Y.
AU - Kunieda, H.
AU - Yamashita, K.
AU - Sonobe, T.
AU - Tanaka, Y.
AU - Mushotzky, R.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - We report the 0.5-10 keV X-ray image and spectrum of Cl 0016 ± 16, which, at a redshift of 0.541, is one of the most distant clusters of galaxies observed with ASCA. The ASCA X-ray image is well represented by an isothermal β model. The best-fit parameters for the core radius (0, .) and β are 016 and 0.7, respectively. However, because of ASCA's moderate spatial resolution, these two parameters are strongly correlated. The observed spectrum within a 6' radius is well fitted by a thin thermal emission model with a plasma temperature of 8.0 ± 1.0 keV. The Sunyaev-Zeldovich (SZ) effect in Cl 0016 ± 16 has been observed by Carlstrom et al. using an interferometer and by Birkinshaw et al. using a single-dish radio telescope. Combining the SZ microwave decrement with the plasma density and temperature profiles derived from our X-ray observation, we obtained a value of the Hubble constant of 47 ± 14 km s-1 Mpc-1 with the profile parameters obtained by interferometric data, and 52 ± 20 km s-1 Mpc-1 with our best-fit shape parameters and single-dish telescope data.
AB - We report the 0.5-10 keV X-ray image and spectrum of Cl 0016 ± 16, which, at a redshift of 0.541, is one of the most distant clusters of galaxies observed with ASCA. The ASCA X-ray image is well represented by an isothermal β model. The best-fit parameters for the core radius (0, .) and β are 016 and 0.7, respectively. However, because of ASCA's moderate spatial resolution, these two parameters are strongly correlated. The observed spectrum within a 6' radius is well fitted by a thin thermal emission model with a plasma temperature of 8.0 ± 1.0 keV. The Sunyaev-Zeldovich (SZ) effect in Cl 0016 ± 16 has been observed by Carlstrom et al. using an interferometer and by Birkinshaw et al. using a single-dish radio telescope. Combining the SZ microwave decrement with the plasma density and temperature profiles derived from our X-ray observation, we obtained a value of the Hubble constant of 47 ± 14 km s-1 Mpc-1 with the profile parameters obtained by interferometric data, and 52 ± 20 km s-1 Mpc-1 with our best-fit shape parameters and single-dish telescope data.
UR - http://www.scopus.com/inward/record.url?scp=22044437598&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=22044437598&partnerID=8YFLogxK
U2 - 10.1086/306040
DO - 10.1086/306040
M3 - Article
AN - SCOPUS:22044437598
VL - 504
SP - 35
EP - 41
JO - Nippon rinsho. Japanese journal of clinical medicine
JF - Nippon rinsho. Japanese journal of clinical medicine
SN - 0047-1852
IS - 1 PART I
ER -