「今後10年の(日本の)電波天文学」 銀河の研究 ... - 国立天文台 野辺山

「今後10年の(日本の)電波天文学」 銀河の研究 ... - 国立天文台 野辺山 「今後10年の(日本の)電波天文学」 銀河の研究 ... - 国立天文台 野辺山

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14.02.2015 Views

Probing cosmic re-ionization with [CII] • Shorter wavelengths window gives narrower redshift coverage http://www.submm.caltech.edu/cso/weather/atplot.shtml 192 GHz – 320 GHz z [CII] = 8.9 – 4.9: Probing cosmic Re-ionization 600 GHz – 720 GHz z [CII] = 2.2 – 1.6 790 GHz – 850 GHz z [CII] = 1.4 – 1.0 PWV = 0.91 mm (tau220 = 0.052)

Redshifted [CII]@z=6.4 with IRAM 30m • S[CII] = 4.1±0.5 [Jy km /s] • L [CII] = 4.4 x 10 9 Lo • L FIR = 2 x 10 13 Lo ⇒ L [CII] /L FIR = 0.02% Radio quiet quasar SDSS J1148+5251 CII @256GHz • IRAM 30m • Tsys ~ 350 K • Integ. ~ 12.4 hrs • dv =56 km/s • 1σ = 0.3 mK in Ta* or 2.8 mJy in S ( η mb =0.54) @90GHz Maiolino et al. 2005, A&A, 440, L51

Redshifted [CII]@z=6.4 with IRAM 30m<br />

• S[CII] = 4.1±0.5 [Jy km /s]<br />

• L [CII] = 4.4 x 10 9 Lo<br />

• L FIR = 2 x 10 13 Lo<br />

⇒ L [CII] /L FIR = 0.02%<br />

Radio quiet quasar<br />

SDSS J1148+5251<br />

CII<br />

@256GHz<br />

• IRAM 30m<br />

• Tsys ~ 350 K<br />

• Integ. ~ 12.4 hrs<br />

• dv =56 km/s<br />

• 1σ = 0.3 mK in Ta*<br />

or 2.8 mJy in S ( η mb =0.54)<br />

@90GHz<br />

Maiolino et al. 2005,<br />

A&A, 440, L51

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