Zobrazeno 1 - 10
of 1 026
pro vyhledávání: '"Johnstone, R. A."'
Autor:
Tamhane, Prathamesh D., McNamara, Brian R., Russell, Helen R., Combes, Francoise, Qiu, Yu, Edge, Alastair C., Maiolino, Roberto, Fabian, Andrew C., Nulsen, Paul E. J., Johnstone, R., Carniani, Stefano
We present XSHOOTER observations with previous ALMA, MUSE and $HST$ observations to study the nature of radio-jet triggered star formation and the interaction of radio jets with the interstellar medium in the brightest cluster galaxy (BCG) in the Abe
Externí odkaz:
http://arxiv.org/abs/2212.11313
Akademický článek
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Autor:
Fabian, A. C., Walker, S. A., Russell, H. R., Pinto, C., Canning, R. E. A., Salome, P., Sanders, J. S., Taylor, G. B., Zweibel, E. G., Conselice, C. J., Combes, F., Crawford, C. S., Ferland, G. J., Gallagher III, J. S., Hatch, N. A., Johnstone, R. M., Reynolds, C. S.
Narrow-band HST imaging has resolved the detailed internal structure of the 10 kpc diameter H alpha+[NII] emission line nebulosity in NGC4696, the central galaxy in the nearby Centaurus cluster, showing that the dusty, molecular, filaments have a wid
Externí odkaz:
http://arxiv.org/abs/1606.02436
Autor:
White, J. A., Canning, R. E. A., King, L. J., Lee, B. E., Russell, H. R., Baum, S. A, Clowe, D. I., Coleman, J. E., Donahue, M., Edge, A. C., Fabian, A. C., Johnstone, R. M., McNamara, B. R., ODea, C. P., Sanders, J. S.
We present a dynamical analysis of the merging galaxy cluster system Abell 2146 using spectroscopy obtained with the Gemini Multi-Object Spectrograph on the Gemini North telescope. As revealed by the Chandra X-ray Observatory, the system is undergoin
Externí odkaz:
http://arxiv.org/abs/1508.01505
Autor:
Canning, R. E. A., Ferland, G. J., Fabian, A. C., Johnstone, R. M., van Hoof, P. A. M., Porter, R. L., Werner, N., Williams, R. J. R.
Many massive galaxies at the centres of relaxed galaxy clusters and groups have vast reservoirs of cool (~10,000 K) and cold (~100 K) gas. In many low redshift brightest group and cluster galaxies this gas is lifted into the hot ISM in filamentary st
Externí odkaz:
http://arxiv.org/abs/1501.01081
Autor:
Chatzikos, M., Williams, R. J. R., Ferland, G. J., Canning, R. E. A., Fabian, A. C., Sanders, J. S., van Hoof, P. A. M., Johnstone, R. M., Lykins, M., Porter, R. L.
We announce a new facility in the spectral code CLOUDY that enables tracking the evolution of a cooling parcel of gas with time. For gas cooling from temperatures relevant to galaxy clusters, earlier calculations estimated the [Fe XIV] {\lambda}5303
Externí odkaz:
http://arxiv.org/abs/1410.4566
Autor:
Canning, R. E. A, Ryon, J. E., Gallagher III, J. S., Kotulla, R., O'Connell, R. W., Fabian, A. C., Johnstone, R. M., Conselice, C. J., Hicks, A., Rosario, D., Wyse, R. F. G.
We examine the star formation in the outer halo of NGC~1275, the central galaxy in the Perseus cluster (Abell 426), using far ultraviolet and optical images obtained with the Hubble Space Telescope. We have identified a population of very young, comp
Externí odkaz:
http://arxiv.org/abs/1406.4800
Autor:
Canning, R. E. A., Sun, M., Sanders, J. S., Clarke, T. E., Fabian, A. C., Giacintucci, S., Lal, D. V., Werner, N., Allen, S. W., Donahue, M., Edge, A. C., Johnstone, R. M., Nulsen, P. E. J., Salome, P., Sarazin, C. L.
We report the results of a multi-wavelength study of the nearby galaxy group, Abell 3581 (z=0.0218). This system hosts the most luminous cool core of any nearby group and exhibits active radio mode feedback from the super-massive black hole in its br
Externí odkaz:
http://arxiv.org/abs/1305.0050
Autor:
Johnstone, R. M., Canning, R. E. A., Fabian, A. C., Ferland, G. J., Lykins, M., Porter, R. L., van Hoof, P. A. M., Williams, R. J. R.
Far ultraviolet emission has been detected from a knot of Halpha emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of the Halpha line in the same spatial region is very close to that expe
Externí odkaz:
http://arxiv.org/abs/1206.6336
Autor:
Russell, H. R., Fabian, A. C., Taylor, G. B., Sanders, J. S., Blundell, K. M., Crawford, C. S., Johnstone, R. M., Belsole, E.
We present a 100 ks Chandra observation studying the extended X-ray emission around the powerful z=1.04 quasar PKS1229-021. The diffuse cluster X-ray emission can be traced out to ~15 arcsec (~120 kpc) radius and there is a drop in the calculated har
Externí odkaz:
http://arxiv.org/abs/1201.5395