Zobrazeno 1 - 10
of 2 363
pro vyhledávání: '"Norris, R"'
Autor:
Bordiu, C., Filipovic, M. D., Umana, G., Cotton, W. D., Buemi, C., Bufano, F., Camilo, F., Cavallaro, F., Cerrigone, L., Dai, S., Hopkins, A. M., Ingallinera, A., Jarrett, T., Koribalski, B., Lazarevic, S., Leto, P., Loru, S., Lundqvist, P., Mackey, J., Norris, R. P., Payne, J., Rowell, G., Riggi, S., Rizzo, J. R., Ruggeri, A. C., Shabala, S., Smeaton, Z. J., Trigilio, C., Velovic, V.
We present the serendipitous discovery of a new radio-continuum ring-like object nicknamed Kyklos (J1802-3353), with MeerKAT UHF and L-band observations. The radio ring, which resembles the recently discovered odd radio circles (ORCs), has a diameter
Externí odkaz:
http://arxiv.org/abs/2408.07727
Autor:
Vantyghem, A. N., Galvin, T. J., Sebastian, B., O'Dea, C. P., Gordon, Y. A., Boyce, M., Rudnick, L., Polsterer, K., Andernach, Heinz, Dionyssiou, M., Venkataraman, P., Norris, R., Baum, S. A., Wang, X. R., Huynh, M.
Modern wide field radio surveys typically detect millions of objects. Techniques based on machine learning are proving to be useful for classifying large numbers of objects. The self-organizing map (SOM) is an unsupervised machine learning algorithm
Externí odkaz:
http://arxiv.org/abs/2404.10109
Autor:
Riggi, S., Umana, G., Trigilio, C., Bordiu, C., Bufano, F., Ingallinera, A., Cavallaro, F., Gordon, Y., Norris, R. P., Gürkan, G., Leto, P., Buemi, C., Loru, S., Hopkins, A. M., Filipović, M. D., Cecconello, T.
Generation of science-ready data from processed data products is one of the major challenges in next-generation radio continuum surveys with the Square Kilometre Array (SKA) and its precursors, due to the expected data volume and the need to achieve
Externí odkaz:
http://arxiv.org/abs/2402.15232
Autor:
Duchesne, S. W., Botteon, A., Koribalski, B. S., Loi, F., Rajpurohit, K., Riseley, C. J., Rudnick, L., Vernstrom, T., Andernach, H., Hopkins, A. M., Kapinska, A. D., Norris, R. P., Zafar, T.
Clusters of galaxies have been found to host Mpc-scale diffuse, non-thermal radio emission in the form of central radio halos and peripheral relics. Turbulence and shock-related processes in the intra-cluster medium are generally considered responsib
Externí odkaz:
http://arxiv.org/abs/2402.06192
Autor:
Carvajal, R., Matute, I., Afonso, J., Norris, R. P., Luken, K. J., Sánchez-Sáez, P., Cunha, P. A. C., Humphrey, A., Messias, H., Amarantidis, S., Barbosa, D., Cruz, H. A., Miranda, H., Paulino-Afonso, A., Pappalardo, C.
Publikováno v:
A&A 679, A101 (2023)
We developed and trained a pipeline of three machine learning (ML) models than can predict which sources are more likely to be an AGN and to be detected in specific radio surveys. Also, it can estimate redshift values for predicted radio-detectable A
Externí odkaz:
http://arxiv.org/abs/2309.11652
SPACE TELESCOPE AND OPTICAL REVERBERATION MAPPING PROJECT.VI. REVERBERATING DISK MODELS FOR NGC 5548
Autor:
Starkey, D., Horne, Keith, Fausnaugh, M. M., Peterson, B. M., Bentz, M. C., Kochanek, C. S., Denney, K. D., Edelson, R., Goad, M. R., Rosa, G. De, Anderson, M. D., Arévalo, P., Barth, A. J., Bazhaw, C., Borman, G. A., Boroson, T. A., Bottorff, M. C., Brandt, W. N., Breeveld, A. A., Cackett, E. M., Carini, M. T., Croxall, K. V., Crenshaw, D. M., Bontà, E. Dalla, Lorenzo-Cáceres, A. De, Dietrich, M., Efimova, N. V., Ely, J., Evans, P. A., Filippenko, A. V., Flatland, K., Gehrels, N., Geier, S., Gelbord, J. M., Gonzalez, L., Gorjian, V., Grier, C. J., Grupe, D., Hall, P. B., Hicks, S., Horenstein, D., Hutchison, T., Im, M., Jensen, J. J., Joner, M. D., Jones, J., Kaastra, J., Kaspi, S., Kelly, B. C., Kennea, J. A., Kim, S. C., Kim, M., Klimanov, S. A., Korista, K. T., Kriss, G. A., Lee, J. C., Leonard, D. C., Lira, P., MacInnis, F., Manne-Nicholas, E. R., Mathur, S., McHardy, I. M., Montouri, C., Musso, R., Nazarov, S. V., Norris, R. P., Nousek, J. A., Okhmat, D. N., Pancoast, A., Parks, J. R., Pei, L., Pogge, R. W., Pott, J.-U., Rafter, S. E., Rix, H.-W., Saylor, D. A., Schimoia, J. S., Schnülle, K., Sergeev, S. G., Siegel, M. H., Spencer, M., Sung, H.-I., Teems, K. G., Turner, C. S., Uttley, P., Vestergaard, M., Villforth, C., Weiss, Y., Woo, J.-H., Yan, H., Young, and S., Zheng, W., Zu, Y.
We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continuum light curves (1158 angstrom to 9157 angstrom) combine simultaneous
Externí odkaz:
http://hdl.handle.net/10150/622875
http://arizona.openrepository.com/arizona/handle/10150/622875
http://arizona.openrepository.com/arizona/handle/10150/622875
Autor:
Cannon, E., Montargès, M., de Koter, A., Matter, A., Sanchez-Bermudez, J., Norris, R., Paladini, C., Decin, L., Sana, H., Sundqvist, J. O., Lagadec, E., Kervella, P., Chiavassa, A., Dupree, A. K., Perrin, G., Scicluna, P., Stee, P., Kraus, S., Danchi, W., Lopez, B., Millour, F., Drevon, J., Cruzalèbes, P., Berio, P., Robbe-Dubois, S., Rosales-Guzman, A.
Publikováno v:
A&A 675, A46 (2023)
The 'Great Dimming' of the prototypical red supergiant Betelgeuse, which occurred between December 2019 and April 2020, gives us unprecedented insight into the processes occurring on the stellar surface and in the inner wind of this type of star. In
Externí odkaz:
http://arxiv.org/abs/2303.08892
Autor:
Goad, M. R., Korista, K. T., Rosa, G. De, Kriss, G. A., Edelson, R., Barth, A. J., Ferland, G. J., Kochanek, C. S., Netzer, H., Peterson, B. M., Bentz, M. C., Bisogni, S., Crenshaw, D. M., Denney, K. D., Ely, J., Fausnaugh, M. M., Grier, C. J., Gupta, A., Horne, K. D., Kaastra, J., Pancoast, A., Pei, L., Pogge, R. W., Skielboe, A., Starkey, D., Vestergaard, M., Zu, Y., Anderson, M. D., Arévalo, P., Bazhaw, C., Borman, G. A., Boroson, T. A., Bottorff, M. C., Brandt, W. N., Breeveld, A. A., Brewer, B. J., Cackett, E. M., Carini, M. T., Croxall, K. V., Bontà, E. Dalla, Lorenzo-Cáceres, A. De, Dietrich, M., Efimova, N. V., Evans, P. A., Filippenko, A. V., Flatland, K., Gehrels, N., Geier, S., Gelbord, J. M., Gonzalez, L., Gorjian, V., Grupe, D., Hall, P. B., Hicks, S., Horenstein, D., Hutchison, T., Im, M., Jensen, J. J., Joner, M. D., Jones, J., Kaspi, S., Kelly, B. C., Kennea, J. A., Kim, M., Kim, S. C., Klimanov, S. A., Lee, J. C., Leonard, D. C., Lira, P., MacInnis, F., Manne-Nicholas, E. R., Mathur, S., McHardy, I. M., Montouri, C., Musso, R., Nazarov, S. V., Norris, R. P., Nousek, J. A., Okhmat, D. N., Papadakis, I., Parks, J. R., Pott, J.-U., Rafter, S. E., Rix, H.-W., Saylor, D. A., Schimoia, J. S., Schnülle, K., Sergeev, S. G., Siegel, M., Spencer, M., Sung, H.-I., Teems, K. G., Treu, T., Turner, C. S., Uttley, P., Villforth, C., Weiss, Y., Woo, J.-H., Yan, H., Young, S., Zheng, W.-K.
During an intensive Hubble Space Telescope (HST) Cosmic Origins Spectrograph (COS) UV monitoring campaign of the Seyfert 1 galaxy NGC 5548 performed from 2014 February to July, the normally highly correlated far UV continuum and broad emission line v
Externí odkaz:
http://hdl.handle.net/10150/621259
http://arizona.openrepository.com/arizona/handle/10150/621259
http://arizona.openrepository.com/arizona/handle/10150/621259
Autor:
Ruppin, F., McDonald, M., Hlavacek-Larrondo, J., Bayliss, M., Bleem, L. E., Calzadilla, M., Edge, A. C., Filipović, M. D., Floyd, B., Garmire, G., Khullar, G., Kim, K. J., Kraft, R., Mahler, G., Norris, R. P., O'Brien, A., Reichardt, C. L., Somboonpanyakul, T., Stark, A. A., Tothill, N.
We analyze the cooling and feedback properties of 48 galaxy clusters at redshifts $0.4 < z < 1.3$ selected from the South Pole Telescope (SPT) catalogs to evolve like the progenitors of massive and well-studied systems at $z{\sim}0$. We estimate the
Externí odkaz:
http://arxiv.org/abs/2207.13351
Autor:
Velović, Velibor, Filipović, M. D., Barnes, L., Norris, R. P., Tremblay, C. D., Heald, G., Rudnick, L., Shabala, S. S., Pannuti, T. G., Andernach, H., Titov, O., Waddell, S. G. H., Koribalski, B. S., Grupe, D., Jarrett, T., Alsaberi, R. Z. E., Carretti, E., Collier, J. D., Einecke, S., Galvin, T. J., Hotan, A., Manojlović, P., Marvil, J., Nandra, K., Reiprich, T. H., Rowell, G., Salvato, M., Whiting, M.
We present the discovery of highly-collimated radio jets spanning a total of 355 kpc around the nearby elliptical galaxy NGC 2663, and the possible first detection of recollimation on kiloparsec scales. The small distance to the galaxy (~28.5 Mpc) al
Externí odkaz:
http://arxiv.org/abs/2207.06713