Molecular gas along a bright Hα filament in 2A 0335+096 revealed by Alma.
- Vantyghem, A. N.
- McNamara, B. R.
- Russell, H. R.
- Hogan, M. T.
- Edge, A. C.
- Nulsen, P. E. J.
- Fabian, A. C.
- Combes, F.
- Salomé, P.
- Baum, S. A.
- Donahue, M.
- Main, R. A.
- Murray, N. W.
- O’Connell, R. W.
- O’Dea, C. P.
- Oonk, J. B. R.
- Parrish, I. J
- Sanders, J. S.
- Tremblay, G.
- Voit, G. M.
DOIAbstract
We present ALMA CO(1–0) and CO(3–2) observations of the brightest cluster galaxy (BCG) in the 2A 0335+096 galaxy cluster (z = 0.0346). The total molecular gas mass of 1.13 ± 0.15 × 109 M ⊙ is divided into two components: a nuclear region and a 7 kpc long dusty filament. The central molecular gas component accounts for 3.2 ± 0.4 × 108 M ⊙ of the total supply of cold gas. Instead of forming a rotationally supported ring or disk, it is composed of two distinct, blueshifted clumps south of the nucleus and a series of low-significance redshifted clumps extending toward a nearby companion galaxy. The velocity of the redshifted clouds increases with radius to a value consistent with the companion galaxy, suggesting that an interaction between thes...
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