HI and OH absorption in the lensing galaxy of MG J0414+0534

Details HI and OH absorption in the lensing galaxy of MG J0414+0534 HI and OH absorption in the lensing galaxy of MG J0414+0534

2007-08-13

arxiv.org/abs/0708.1636v2

Astronomy and Astrophysics

Astrophysics

Accepted by MNRAS Letters, 5 (and a bit) pages, 5 figures

Scientific paper

10.1111/j.1745-3933.2007.00379.x

We report the detection of \HI 21-cm absorption in the $z=0.96$ early-type lensing galaxy towards MG J0414+0534 with the Green Bank Telescope. The absorption, with total $N_{\rm HI}=1.6 \times 10^{18} (T_{\rm s}/f) {\rm cm}^{-2}$, is resolved into two strong components, probably due to the two strongest lens components, which are separated by 0.4\arcsec. Unlike the other three lenses which have been detected in \HI, J0414+0534 does not exhibit strong OH absorption, giving a OH/\HI column density ratio of $N_{\rm OH}/N_{\rm HI}\lapp10^{-6}$ (for $T_{\rm s}=100$ K, $T_{\rm x}=10$ K and $f_{\rm HI}=f_{\rm OH}=1$). This underabundance of molecular gas may indicate that the extreme optical--near-IR colour ($V-K=10.26$) along the line-of-sight is not due to the lens. We therefore suggest that despite the strong upper limits on molecular absorption at the quasar redshift, as traced by millimetre lines, the extinction occurs primarily in the quasar host galaxy.

Affiliated with

Also associated with

No associations

Rating

HI and OH absorption in the lensing galaxy of MG J0414+0534 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with HI and OH absorption in the lensing galaxy of MG J0414+0534, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HI and OH absorption in the lensing galaxy of MG J0414+0534 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-23057