Chandra follow-up of the Hectospec Cluster Survey: comparison of caustic and hydrostatic masses and constraints on the hydrostatic bias

Autor: Crispin H. A. Logan, Ben J. Maughan, Antonaldo Diaferio, Ryan T. Duffy, Margaret J. Geller, Kenneth Rines, Jubee Sohn

Publikováno v: Logan, C H A, Maughan, B J, Diaferio, A, Duffy, R T, Geller, M J, Rines, K & Sohn, J 2022, ' Chandra follow-up of the Hectospec Cluster Survey : Comparison of caustic and hydrostatic masses and constraints on the hydrostatic bias ', Astronomy and Astrophysics, vol. 665, A124 . https://doi.org/10.1051/0004-6361/202243347

Clusters of galaxies are powerful probes with which to study cosmology and astrophysics. However, for many applications an accurate measurement of a cluster's mass is essential. A systematic underestimate of hydrostatic masses from X-ray observations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba9f3c25ed6d10237724eeb14f3f3134
https://hdl.handle.net/2318/1890593

The X-ray ribs within the cocoon shock of Cygnus A

Autor: Alastair C. Edge, Bradford Snios, Michael W. Wise, William G. Mathews, Robert Laing, Martin J. Hardcastle, Paul Nulsen, Ryan T. Duffy, M. N. de Vries, Leith Godfrey, Chris Carilli, D. Rafferty, Mark Birkinshaw, Judith H. Croston, Richard A. Perley, Brian R. McNamara, John McKean, Diana M Worrall

Publikováno v: Duffy, R T, Worrall, D M, Birkinshaw, M, Nulsen, P E J, Wise, M W, de Vries, M N, Snios, B, Mathews, W G, Perley, R A, Hardcastle, M J, Rafferty, D A, McNamara, B R, Edge, A C, McKean, J P, Carilli, C L, Croston, J H, Godfrey, L E H & Laing, R A 2018, ' The X-ray ribs within the cocoon shock of Cygnus A ', Monthly Notices of the Royal Astronomical Society, vol. 476, no. 4, pp. 4848-4860 . https://doi.org/10.1093/mnras/sty549
Monthly Notices of the Royal Astronomical Society, 476(4), 4848-4860. Oxford University Press
Monthly notices of the Royal Astronomical Society, 2018, Vol.476(4), pp.4848-4860 [Peer Reviewed Journal]

We use new and archival Chandra observations of Cygnus A, totalling $\sim$1.9 Ms, to investigate the distribution and temperature structure of gas lying within the projected extent of the cocoon shock and exhibiting a rib-like structure. We confirm t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcb8a6ed24a28890a7d9750a4ee79e39
https://research.rug.nl/en/publications/d07cb9a8-c6d6-4512-a36a-b2d6420193b1

The Cocoon Shocks of Cygnus A: Pressures and Their Implications for the Jets and Lobes

Autor: Martin J. Hardcastle, Robert A. Laing, Paul Nulsen, Martijn de Vries, David Rafferty, Leith Godfrey, Mark Birkinshaw, Judith H. Croston, Ryan T. Duffy, Michael W. Wise, Brian R. McNamara, Chris L. Carilli, John McKean, Richard A. Perley, Alastair C. Edge, Bradford Snios, Andrew J. Young, Daniel E. Harris, William G. Mathews, Diana M Worrall, Ralph P. Kraft

Publikováno v: Snios, B, Nulsen, P E J, Wise, M W, Vries, M D, Birkinshaw, M, Worrall, D M, Duffy, R T, Kraft, R P, McNamara, B R, Carilli, C, Croston, J H, Edge, A C, Godfrey, L E H, Hardcastle, M J, Harris, D E, Laing, R A, Mathews, W G, McKean, J P, Perley, R A, Rafferty, D A & Young, A J 2018, ' The Cocoon Shocks of Cygnus A : Pressures and Their Implications for the Jets and Lobes ', Astrophysical Journal, vol. 855, no. 1, pp. 855-871 . https://doi.org/10.3847/1538-4357/aaaf1a
Astrophysical Journal, 855(1):71. IOP Publishing Ltd.
Astrophysical journal, 2018, Vol.855(1), pp.71 [Peer Reviewed Journal]

We use 2.0 Msec of Chandra observations to investigate the cocoon shocks of Cygnus A and some implications for its lobes and jet. Measured shock Mach numbers vary in the range 1.18-1.66 around the cocoon. We estimate a total outburst energy of $\sime

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d37f63b9c35fb524c635d7bfc36f13e8

The Cocoon Shocks of Cygnus A: Pressures and Their Implications for the Jets and Lobes.

Autor: Bradford Snios, Paul E. J. Nulsen, Michael W. Wise, Martijn de Vries, Mark Birkinshaw, Diana M. Worrall, Ryan T. Duffy, Ralph P. Kraft, Brian R. McNamara, Chris Carilli, Judith H. Croston, Alastair C. Edge, Leith E. H. Godfrey, Martin J. Hardcastle, Daniel E. Harris, Robert A. Laing, William G. Mathews, John P. McKean, Richard A. Perley, David A. Rafferty

Publikováno v: Astrophysical Journal; 3/1/2018, Vol. 855 Issue 1, p1-1, 1p