Zobrazeno 1 - 10
of 484
pro vyhledávání: '"Hamer S"'
We present IRAM 30~m Telescope observations of the CO(1-0) and CO(2-1) emission lines in a sample of eight Cepheid variable stars. The CO(1-0) line is detected in four of the eight targets at a signal-to-noise of $>$3.5 confirming the presence of CO
Externí odkaz:
http://arxiv.org/abs/2302.14075
Autor:
Olivares, V., Salome, P., Hamer, S. L., Combes, F., Gaspari, M., Kolokythas, K., O'Sullivan, E., Beckmann, R. S., Babul, A., Polles, F. L., Lehnert, M., Loubser, S. I., Donahue, M., Gendron-Marsolais, M. -L., Lagos, P., Forets, G. Pineau des, Godard, B., Rose, T., Tremblay, G., Ferland, G., Guillard, P.
Publikováno v:
A&A 666, A94 (2022)
The origin of the cold gas in central galaxies in groups is still a matter of debate. We present Multi-Unit Spectroscopic Explorer (MUSE) observations of 18 optically selected local Brightest Group Galaxies (BGGs) to study the kinematics and distribu
Externí odkaz:
http://arxiv.org/abs/2201.07838
Autor:
Polles, F. L., Salomé, P., Guillard, P., Godard, B., Forêts, G. Pineau des, Olivares, V., Beckmann, R. S., Canning, R. E. A., Combes, F., Dubois, Y., Edge, A. C., Fabian, A. C., Ferland, G. J., Hamer, S. L., Lehnert, M. D.
The excitation of the filamentary gas structures surrounding giant elliptical galaxies at the center of cool-core clusters, a.k.a BCGs (brightest cluster galaxies), is key to our understanding of active galactic nucleus feedback, and of the impact of
Externí odkaz:
http://arxiv.org/abs/2103.09842
Autor:
Rose, Tom, Edge, A. C., Combes, F., Hamer, S., McNamara, B. R., Russell, H., Gaspari, M., Salomé, P., Sarazin, C., Tremblay, G. R., Baum, S. A., Bremer, M. N., Donahue, M., Fabian, A. C., Ferland, G., Nesvadba, N., O'Dea, C., Oonk, J. B. R., Peck, A. B.
We present Atacama Large Millimeter/submillimeter Array observations of the brightest cluster galaxy Hydra-A, a nearby ($z=0.054$) giant elliptical galaxy with powerful and extended radio jets. The observations reveal CO(1-0), CO(2-1), $^{13}$CO(2-1)
Externí odkaz:
http://arxiv.org/abs/2005.10252
Autor:
Castignani, G., Pandey-Pommier, M., Hamer, S. L., Combes, F., Salomé, P., Freundlich, J., Jablonka, P.
Publikováno v:
Astronomy & Astrophysics (2020), Volume 640, id.A65, 15 pp
Brightest cluster galaxies (BCGs) are excellent laboratories to study galaxy evolution in dense Mpc-scale environments. We have observed in CO(1-0), CO(2-1), CO(3-2), or CO(4-3), with the IRAM-30m, 18 BCGs at $z\sim0.2-0.9$ that are drawn from the CL
Externí odkaz:
http://arxiv.org/abs/2004.01786
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:
Rose, Tom, Edge, A. C., Combes, F., Gaspari, M., Hamer, S., Nesvadba, N., Peck, A. B., Sarazin, C., Tremblay, G. R., Baum, S. A., Bremer, M. N., McNamara, B. R., O'Dea, C., Oonk, J. B. R., Russell, H., Salomé, P., Donahue, M., Fabian, A. C., Ferland, G., Mittal, R., Vantyghem, A.
To advance our understanding of the fuelling and feedback processes which power the Universe's most massive black holes, we require a significant increase in our knowledge of the molecular gas which exists in their immediate surroundings. However, th
Externí odkaz:
http://arxiv.org/abs/1907.13526
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:
Rose, Tom, Edge, A. C., Combes, F., Gaspari, M., Hamer, S., Nesvadba, N., Russell, H., Tremblay, G. R., Baum, S. A., O'Dea, C., Peck, A. B., Sarazin, C., Vantyghem, A., Bremer, M., Donahue, M., Fabian, A. C., Ferland, G., McNamara, B. R., Mittal, R., Oonk, J. B. R., Salomé, P., Swinbank, A. M., Voit, M.
Active galactic nuclei play a crucial role in the accretion and ejection of gas in galaxies. Although their outflows are well studied, finding direct evidence of accretion has proved very difficult and has so far been done for very few sources. A pro
Externí odkaz:
http://arxiv.org/abs/1902.01863
Autor:
Hamer, S. L., Fabian, A. C., Russell, H. R., Salomé, P., Combes, F., Olivares, V., Polles, F. L., Edge, A. C., Beckmann, R. S.
Publikováno v:
2019MNRAS.483.4984H
We present the discovery of diffuse optical line emission in the Centaurus cluster seen with the MUSE IFU. The unparalleled sensitivity of MUSE allows us to detect the faint emission from these structures which extend well beyond the bounds of the pr
Externí odkaz:
http://arxiv.org/abs/1803.09765