Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Olivares, V."'
Autor:
Olivares, V., Su, Y., Forman, W., Gaspari, M., Andrade-Santos, F., Salome, P., Nulsen, P., Edge, A., Combes, F., Jones, C.
We study active galactic nucleus (AGN) feedback in nearby (z<0.35) galaxy clusters from the Planck Sunyaev-Zeldovich (SZ) sample using Chandra observations. This nearly unbiased mass-selected sample includes both relaxed and disturbed clusters and ma
Externí odkaz:
http://arxiv.org/abs/2306.09829
Autor:
Lagos, P., Loubser, S. I., Scott, T. C., O'Sullivan, E., Kolokythas, K., Babul, A., Nigoche-Netro, A., Olivares, V., Sengupta, C.
With the goal of a thorough investigation of the ionised gas and its origin in early-type group-dominant galaxies, we present archival MUSE data for 18 galaxies from the Complete Local-Volume Groups Sample (CLoGS). This data allowed us to study the s
Externí odkaz:
http://arxiv.org/abs/2208.14115
Autor:
Olivares, V., Su, Y., Nulsen, P., Kraft, R., Somboonpanyakul, T., Andrade-Santos, F., Jones, C., Forman, W.
We present a systematic study of X-ray cavities using archival Chandra observations of nearby galaxy clusters selected by their Sunyaev-Zel'dovich (SZ) signature in the Planck survey, which provides a nearly unbiased mass-selected sample to explore t
Externí odkaz:
http://arxiv.org/abs/2208.04888
Autor:
Loubser, S. I., Lagos, P., Babul, A., O'Sullivan, E., Jung, S. L., Olivares, V., Kolokythas, K.
Using Multi-Unit Spectroscopic Explorer (MUSE) spectroscopy, we analyse the stellar kinematics of 18 brightest group early-type (BGEs) galaxies, selected from the Complete Local-Volume Groups Sample (CLoGS). We analyse the kinematic maps for distinct
Externí odkaz:
http://arxiv.org/abs/2206.13215
Autor:
Olivares, V., Salome, P., Hamer, S. L., Combes, F., Gaspari, M., Kolokythas, K., O'Sullivan, E., Beckmann, R. S., Babul, A., Polles, F. L., Lehnert, M., Loubser, S. I., Donahue, M., Gendron-Marsolais, M. -L., Lagos, P., Forets, G. Pineau des, Godard, B., Rose, T., Tremblay, G., Ferland, G., Guillard, P.
Publikováno v:
A&A 666, A94 (2022)
The origin of the cold gas in central galaxies in groups is still a matter of debate. We present Multi-Unit Spectroscopic Explorer (MUSE) observations of 18 optically selected local Brightest Group Galaxies (BGGs) to study the kinematics and distribu
Externí odkaz:
http://arxiv.org/abs/2201.07838
Autor:
Polles, F. L., Salomé, P., Guillard, P., Godard, B., Forêts, G. Pineau des, Olivares, V., Beckmann, R. S., Canning, R. E. A., Combes, F., Dubois, Y., Edge, A. C., Fabian, A. C., Ferland, G. J., Hamer, S. L., Lehnert, M. D.
The excitation of the filamentary gas structures surrounding giant elliptical galaxies at the center of cool-core clusters, a.k.a BCGs (brightest cluster galaxies), is key to our understanding of active galactic nucleus feedback, and of the impact of
Externí odkaz:
http://arxiv.org/abs/2103.09842
Autor:
Beckmann, R. S., Dubois, Y., Guillard, P., Salome, P., Olivares, V., Polles, F., Cadiou, C., Combes, F., Hamer, S., Lehnert, M. D., Forets, G. Pineau des
Publikováno v:
A&A 631, A60 (2019)
Extended filamentary H$\alpha$ emission nebulae are a striking feature of nearby galaxy clusters but the formation mechanism of the filaments, and the processes which shape their morphology remain unclear. We conduct an investigation into the formati
Externí odkaz:
http://arxiv.org/abs/1909.01329
Autor:
Olivares, V., Salomé, P., Combes, F., Hamer, S., Guillard, P., Lehnert, M. D., Polles, F., Beckmann, R. S., Dubois, Y., Donahue, M., Edge, A., Fabian, A. C., McNamara, B., Rose, T., Russell, H., Tremblay, G., Vantyghem, A., Canning, R. E. A., Ferland, G., Godard, B., Hogan, M., Peirani, S., Forets, G. Pineau des
Publikováno v:
A&A 631, A22 (2019)
Multi-phase filamentary structures around Brightest Cluster Galaxies are likely a key step of AGN-feedback. We observed molecular gas in 3 cool cluster cores: Centaurus, Abell S1101, and RXJ1539.5 and gathered ALMA and MUSE data for 12 other clusters
Externí odkaz:
http://arxiv.org/abs/1902.09164
Autor:
Russell, H. R., McNamara, B. R., Fabian, A. C., Nulsen, P. E. J., Combes, F., Edge, A. C., Madar, M., Olivares, V., Salome, P., Vantyghem, A. N.
We present an analysis of new and archival ALMA observations of molecular gas in twelve central cluster galaxies. We examine emerging trends in molecular filament morphology and gas velocities to understand their origins. Molecular gas masses in thes
Externí odkaz:
http://arxiv.org/abs/1902.09227
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