Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Hales, Christopher A."'
We present a deep radio-polarimetric observation of the stellar bow shock EB27 associated to the massive star BD+43 3654. This is the only stellar bow shock confirmed to have non-thermal radio emission. We used the Jansky Very Large Array in S band (
Externí odkaz:
http://arxiv.org/abs/2103.01317
Publikováno v:
ApJ, 907, 2 (2021)
Fluctuation dynamos are thought to play an essential role in magnetized galaxy evolution, saturating within $\sim0.01~$Gyr and thus potentially acting as seeds for large-scale dynamos. However, unambiguous observational confirmation of the fluctuatio
Externí odkaz:
http://arxiv.org/abs/2012.02329
Autor:
Manning, Sinclaire M., Casey, Caitlin M., Hung, Chao-Ling, Battye, Richard, Brown, Michael L., Jackson, Neal, Abdalla, Filipe, Chapman, Scott, Demetroullas, Constantinos, Drew, Patrick, Hales, Christopher A., Harrison, Ian, Riseley, Christopher J., Sanders, David B., Watson, Robert A.
We present optical and near-infrared imaging covering a $\sim$1.53 deg$^2$ region in the Super-Cluster Assisted Shear Survey (SuperCLASS) field, which aims to make the first robust weak lensing measurement at radio wavelengths. We derive photometric
Externí odkaz:
http://arxiv.org/abs/2003.01735
Autor:
Battye, Richard A., Brown, Michael L., Casey, Caitlin M., Harrison, Ian, Jackson, Neal J., Smail, Ian, Watson, Robert A., Hales, Christopher A., Manning, Sinclaire M., Hung, Chao-Ling, Riseley, Christopher J., Abdalla, Filipe B., Birkinshaw, Mark, Demetroullas, Constantinos, Chapman, Scott, Beswick, Robert J., Muxlow, Tom W. B., Bonaldi, Anna, Camera, Stefano, Hillier, Tom, Kay, Scott T., Peters, Aaron, Sanders, David B., Thomas, Daniel B., Thomson, A. P., Tunbridge, Ben, Whittaker, Lee
The SuperCLuster Assisted Shear Survey (SuperCLASS) is a legacy programme using the e-MERLIN interferometric array. The aim is to observe the sky at L-band (1.4 GHz) to a r.m.s. of 7 uJy per beam over an area of ~1 square degree centred on the Abell
Externí odkaz:
http://arxiv.org/abs/2003.01734
Autor:
Harrison, Ian, Brown, Michael L., Tunbridge, Ben, Thomas, Daniel B., Hillier, Tom, Thomson, A. P., Whittaker, Lee, Abdalla, Filipe B., Battye, Richard A., Bonaldi, Anna, Camera, Stefano, Casey, Caitlin M., Demetroullas, Constantinos, Hales, Christopher A., Jackson, Neal J., Kay, Scott T., Manning, Sinclaire M., Peters, Aaron, Riseley, Christopher J., Watson, Robert A.
We describe the first results on weak gravitational lensing from the SuperCLASS survey: the first survey specifically designed to measure the weak lensing effect in radio-wavelength data, both alone and in cross-correlation with optical data. We anal
Externí odkaz:
http://arxiv.org/abs/2003.01736
Autor:
Fernández, Ximena, Gim, Hansung B., van Gorkom, J. H., Yun, Min S., Momjian, Emmanuel, Popping, Attila, Chomiuk, Laura, Hess, Kelley M., Hunt, Lucas, Kreckel, Kathryn, Lucero, Danielle, Maddox, Natasha, Oosterloo, Tom, Pisano, D. J., Verheijen, M. A. W., Hales, Christopher A., Chung, Aeree, Dodson, Richard, Golap, Kumar, Gross, Julia, Henning, Patricia, Hibbard, John, Jaffé, Yara L., Meyer, Jennifer Donovan, Meyer, Martin, Sanchez-Barrantes, Monica, Schiminovich, David, Wicenec, Andreas, Wilcots, Eric, Bershady, Matthew, Scoville, Nick, Strader, Jay, Tremou, Evangelia, Salinas, Ricardo, Chávez, Ricardo
Our current understanding of galaxy evolution still has many uncertainties associated with the details of accretion, processing, and removal of gas across cosmic time. The next generation of radio telescopes will image the neutral hydrogen (HI) in ga
Externí odkaz:
http://arxiv.org/abs/1606.00013
Autor:
Casey, Caitlin M., Hodge, Jacqueline A., Lacy, Mark, Hales, Christopher A., Barger, Amy, Narayanan, Desika, Carilli, Chris, Alatalo, Katherine, da Cunha, Elisabete, Emonts, Bjorn, Ivison, Rob, Kimball, Amy, Kohno, Kotaro, Murphy, Eric, Riechers, Dominik, Sargent, Mark, Walter, Fabian
The Next-Generation Very Large Array (ngVLA) will be critical for understanding how galaxies are built and evolve at the earliest epochs. The sensitivity and frequency coverage will allow for the detection of cold gas and dust in `normal' distant gal
Externí odkaz:
http://arxiv.org/abs/1510.06411
Autor:
Vacca, Valentina, Oppermann, Niels, Ensslin, Torsten, Selig, Marco, Junklewitz, Henrik, Greiner, Maksim, Jasche, Jens, Hales, Christopher, Reinecke, Martin, Carretti, Ettore, Feretti, Luigina, Ferrari, Chiara, Giovannini, Gabriele, Govoni, Federica, Horellou, Cathy, Ideguchi, Shinsuke, Johnston-Hollitt, Melanie, Murgia, Matteo, Paladino, Rosita, Pizzo, Roberto Francesco, Anna, Scaife
To better understand the origin and properties of cosmological magnetic fields, a detailed knowledge of magnetic fields in the large-scale structure of the Universe (galaxy clusters, filaments) is crucial. We propose a new statistical approach to stu
Externí odkaz:
http://arxiv.org/abs/1501.00415
Autor:
Hales, Christopher A.
The Karl G. Jansky Very Large Array (VLA) is currently the world's most powerful cm-wavelength telescope. However, within a few years this blanket statement will no longer be entirely true, due to the emergence of a new breed of pre-SKA radio telesco
Externí odkaz:
http://arxiv.org/abs/1312.4602
Autor:
Zinn, Peter-Christian, Middelberg, Enno, Norris, Ray P., Hales, Christopher A., Mao, Minnie Y., Randall, Kate E.
Context. The Australia Telescope Large Area Survey (ATLAS) aims to image a 7 deg2 region centred on the European Large Area ISO Survey - South 1 (ELAIS-S1) field and the Chandra Deep Field South (CDF-S) at 1.4 GHz with high sensitivity (up to ~10 \mu
Externí odkaz:
http://arxiv.org/abs/1206.6595