SIMBAD references

2016MNRAS.458.3134R - Mon. Not. R. Astron. Soc., 458, 3134-3149 (2016/May-3)

ALMA observations of cold molecular gas filaments trailing rising radio bubbles in PKS 0745-191.

RUSSELL H.R., McNAMARA B.R., FABIAN A.C., NULSEN P.E.J., EDGE A.C., COMBES F., MURRAY N.W., PARRISH I.J., SALOME P., SANDERS J.S., BAUM S.A., DONAHUE M., MAIN R.A., O'CONNELL R.W., O'DEA C.P., OONK J.B.R., TREMBLAY G., VANTYGHEM A.N. and VOIT G.M.

Abstract (from CDS):

We present ALMA observations of the CO(1-0) and CO(3-2) line emission tracing filaments of cold molecular gas in the central galaxy of the cluster PKS 0745-191. The total molecular gas mass of , assuming a Galactic XCO factor, is divided roughly equally between three filaments each extending radially 3-5 kpc from the galaxy centre. The emission peak is located in the SE filament ∼ 1 arcsec (2 kpc) from the nucleus. The velocities of the molecular clouds in the filaments are low, lying within of the galaxy's systemic velocity. Their full width at half-maximum (FWHM) are less than which is significantly below the stellar velocity dispersion. Although the molecular mass of each filament is comparable to a rich spiral galaxy, such low velocities show that the filaments are transient and the clouds would disperse on in situ.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: clusters: individual: PKS 0745-191 - galaxies: evolution

Simbad objects: 13

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