Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Crawford, C. S."'
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:
Hamer, S. L., Edge, A. C., Swinbank, A. M., Wilman, R. J., Combes, F., Salomé, P., Fabian, A. C., Crawford, C. S., Russell, H. R., Hlavacek-Larrondo, J., McNamara, B., Bremer, M. N.
We present an Integral Field Unit survey of 73 galaxy clusters and groups with the VIsible Multi Object Spectrograph (VIMOS) on VLT. We exploit the data to determine the H$\alpha$ gas dynamics on kpc-scales to study the feedback processes occurring w
Externí odkaz:
http://arxiv.org/abs/1603.03047
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
Autor:
Canning, R. E. A., Russell, H. R., Hatch, N. A., Fabian, A. C., Zabludoff, A. I., Crawford, C. S., King, L. J., McNamara, B. R., Okamoto, S., Raimundo, S. I.
Using WHT OASIS integral field unit observations, we report the discovery of a thin plume of ionised gas extending from the brightest cluster galaxy in Abell 2146 to the sub-cluster X-ray cool core which is offset from the BCG by ~37 kpc. The plume i
Externí odkaz:
http://arxiv.org/abs/1111.0452
Autor:
Canning, R. E. A., Fabian, A. C., Johnstone, R. M., Sanders, J. S., Crawford, C. S., Ferland, G. J., Hatch, N. A.
We present results of deep integral field spectroscopy observations using high resolution optical (4150-7200 A) VIMOS VLT spectra, of NGC 4696, the dominant galaxy in the Centaurus cluster (Abell 3526). After the Virgo cluster, this is the second nea
Externí odkaz:
http://arxiv.org/abs/1107.4011
Autor:
Fabian, A. C., Sanders, J. S., Allen, S. W., Canning, R. E. A., Churazov, E., Crawford, C. S., Forman, W., GaBany, J., Hlavacek-Larrondo, J., Johnstone, R. M., Russell, H. R., Reynolds, C. S., Salome, P., Taylor, G. B., Young, A. J.
We present new Chandra images of the X-ray emission from the core of the Perseus cluster of galaxies. The total observation time is now 1.4 Ms. New depressions in X-ray surface brightness are discovered to the north of NGC1275, which we interpret as
Externí odkaz:
http://arxiv.org/abs/1105.5025
Autor:
Canning, R. E. A., Fabian, A. C., Johnstone, R. M., Sanders, J. S., Crawford, C. S., Hatch, N. A., Ferland, G. J.
We report a detection (3.5x10^37 \pm 5.6x10^36 ergps) of the optical coronal emission line [Fe X]6374 and upper limits of four other coronal lines using high resolution VIMOS spectra centred on NGC 4696, the brightest cluster galaxy in the Centaurus
Externí odkaz:
http://arxiv.org/abs/1009.2581
Autor:
Edge, A. C., Oonk, J. B. R., Mittal, R., Allen, S. W., Baum, S. A., Boehringer, H., Bregman, J. N., Bremer, M. N., Combes, F., Crawford, C. S., Donahue, M., Egami, E., Fabian, A. C., Ferland, G. J., Hamer, S. L., Hatch, N. A., Jaffe, W., Johnstone, R. M., McNamara, B. R., O'Dea, C. P., Popesso, P., Quillen, A. C., Salome, P., Sarazin, C. L., Voit, G. M., Wilman, R. J., Wise, M. W.
The dust destruction timescales in the cores of clusters of galaxies are relatively short given their high central gas densities. However, substantial mid-infrared and sub-mm emission has been detected in many brightest cluster galaxies. In this lett
Externí odkaz:
http://arxiv.org/abs/1005.1211
Autor:
Edge, A. C., Oonk, J. B. R., Mittal, R., Allen, S. W., Baum, S. A., Boehringer, H., Bregman, J. N., Bremer, M. N., Combes, F., Crawford, C. S., Donahue, M., Egami, E., Fabian, A. C., Ferland, G. J., Hamer, S. L., Hatch, N. A., Jaffe, W., Johnstone, R. M., McNamara, B. R., O'Dea, C. P., Popesso, P., Quillen, A. C., Salome, P., Sarazin, C. L., Voit, G. M., Wilman, R. J., Wise, M. W.
The question of how much gas cools in the cores of clusters of galaxies has been the focus of many, multiwavelength studies in the past 30 years. In this letter we present the first detections of the strongest atomic cooling lines, [C II], [O I] and
Externí odkaz:
http://arxiv.org/abs/1005.1207
Autor:
Canning, R. E. A., Fabian, A. C., Johnstone, R. M., Sanders, J. S., Conselice, C. J., Crawford, C. S., Gallagher III, J. S., Zweibel, E.
We present photometry of the outer star clusters in NGC 1275, the brightest galaxy in the Perseus cluster. The observations were taken using the Hubble Space Telescope Advanced Camera for Surveys. We focus on two stellar regions in the south and sout
Externí odkaz:
http://arxiv.org/abs/1002.1056