Ammonia (J,K)=(1,1) to (4,4) and (6,6) inversion lines detected in the Seyfert 2 galaxy NGC 1068
Ammonia (J,K)=(1,1) to (4,4) and (6,6) inversion lines detected in the Seyfert 2 galaxy NGC 1068
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在 Seyfert 2 星系 NGC 1068 中检测到的氨 (J,K)=(1,1) 至 (4,4) 和 (6,6) 反转线
DOI:
10.1051/0004-6361/201116595
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发表时间:
2011-04
期刊:
影响因子:
--
通讯作者:
hle, S.
中科院分区:
文献类型:
--
作者:
Ao, Y.;Henkel, C.;Braatz, J.A.;Wei, A.;Menten, K.M.;Mühle, S.
We present the detection of the ammonia (NH3) (J,K)= (1,1) to (4,4) and (6,6) inversion lines toward the prototypical Seyfert 2 galaxy NGC 1068, made with the Green Bank Telescope (GBT). This is the first detection of ammonia in a Seyfert galaxy. The ortho-to-para-NH3 abundance ratio suggests that the molecule was formed in a warm medium of at least 20 K. For the NH3 column density and fractional abundance, we find (1.09 +/- 0.23) x 10(14) cm(-2) and (2.9 +/- 0.6) x 10(-8), respectively, from the inner similar to 1.2 kpc of NGC 1068. The kinetic temperature can be constrained to 80 +/- 20 K for the bulk of the molecular gas, while some fraction has an even higher temperature of 140 +/- 30 K.
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DOI:
10.1086/505125
发表时间:
2006-05
期刊:
The Astrophysical Journal
影响因子:
--
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通讯作者:
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DOI:
10.1086/184733
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期刊:
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影响因子:
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通讯作者:
R. Martin;P. Ho
影响因子:
2.3
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