Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Karakci, Ata"'
Autor:
Tassis, Konstantinos, Ramaprakash, Anamparambu N., Readhead, Anthony C. S., Potter, Stephen B., Wehus, Ingunn K., Panopoulou, Georgia V., Blinov, Dmitry, Eriksen, Hans Kristian, Hensley, Brandon, Karakci, Ata, Kypriotakis, John A., Maharana, Siddharth, Ntormousi, Evangelia, Pavlidou, Vasiliki, Pearson, Timothy J., Skalidis, Raphael
PASIPHAE (the Polar-Areas Stellar Imaging in Polarization High-Accuracy Experiment) is an optopolarimetric survey aiming to measure the linear polarization from millions of stars, and use these to create a three-dimensional tomographic map of the mag
Externí odkaz:
http://arxiv.org/abs/1810.05652
We present a three-dimensional model of polarised galactic dust emission that takes into account the variation of the dust density, spectral index and temperature along the line of sight, and contains randomly generated small scale polarisation fluct
Externí odkaz:
http://arxiv.org/abs/1706.04162
Autor:
Zhang, Le, Bunn, Emory F., Karakci, Ata, Korotkov, Andrei, Sutter, P. M., Timbie, Peter T., Tucker, Gregory S., Wandelt, Benjamin D.
Publikováno v:
ApJS 222, 3 (2016)
We present in this paper a new Bayesian semi-blind approach for foreground removal in observations of the 21-cm signal with interferometers. The technique, which we call HIEMICA (HI Expectation-Maximization Independent Component Analysis), is an exte
Externí odkaz:
http://arxiv.org/abs/1505.04146
Autor:
Bunn, Emory F., Karakci, Ata, Sutter, Paul M., Zhang, Le, Tucker, Gregory S., Timbie, Peter T., Wandelt, Benjamin D.
We present results from an end-to-end simulation pipeline interferometric observations of cosmic microwave background polarization. We use both maximum-likelihood and Gibbs sampling techniques to estimate the power spectrum. In addition, we use Gibbs
Externí odkaz:
http://arxiv.org/abs/1407.3305
Autor:
Sutter, P. M., Wandelt, Benjamin D., McEwen, Jason D., Bunn, Emory F., Karakci, Ata, Korotkov, Andrei, Timbie, Peter, Tucker, Gregory S., Zhang, Le
We present a novel, general-purpose method for deconvolving and denoising images from gridded radio interferometric visibilities using Bayesian inference based on a Gaussian process model. The method automatically takes into account incomplete covera
Externí odkaz:
http://arxiv.org/abs/1309.1469
Autor:
Karakci, Ata, Zhang, Le, Sutter, P. M., Bunn, Emory F., Korotkov, Andrei, Timbie, Peter, Tucker, Gregory S., Wandelt, Benjamin D.
The detection of the primordial $B$-mode spectrum of the polarized cosmic microwave background (CMB) signal may provide a probe of inflation. However, observation of such a faint signal requires excellent control of systematic errors. Interferometry
Externí odkaz:
http://arxiv.org/abs/1302.6608
Autor:
Karakci, Ata, Sutter, P. M., Zhang, Le, Bunn, Emory F., Korotkov, Andrei, Timbie, Peter, Tucker, Gregory S., Wandelt, Benjamin D.
Publikováno v:
2013 ApJS 204 10
Detection of B-mode polarization of the cosmic microwave background (CMB) radiation is one of the frontiers of observational cosmology. Because they are an order of magnitude fainter than E-modes, it is quite a challenge to detect B-modes. Having mor
Externí odkaz:
http://arxiv.org/abs/1209.2930
Autor:
Zhang, Le, Karakci, Ata, Sutter, Paul M., Bunn, Emory F., Korotkov, Andrei, Timbie, Peter, Tucker, Gregory S., Wandelt, Benjamin D.
Publikováno v:
2013 ApJS, 206, 24
We investigate the impact of instrumental systematic errors in interferometric measurements of the cosmic microwave background (CMB) temperature and polarization power spectra. We simulate interferometric CMB observations to generate mock visibilitie
Externí odkaz:
http://arxiv.org/abs/1209.2676
Autor:
Brilenkov, Maksym, Fornazier, K.S.F., Hergt, L.T., Hoerning, G.A., Marins, A., Murokoshi, T., Rahman, F., Stutzer, Nils-Ole, Zhou, Y., Abdalla, F.B., Andersen, Kristian Joten, Aurvik, Ragnhild, Banerji, Ranajoy, Basyrov, Artem, Battista, A., Bersanelli, M., Bertocco, S., Bollanos, S., Colombo, L.P.L., Eriksen, Hans Kristian Kamfjord, Eskilt, Johannes Røsok, Foss, Marie Kristine, Franceschet, C., Fuskeland, Unni, Galeotta, S., Galloway, Mathew, Gerakakis, S., Gjerløw, Eirik, Hensley, B., Herman, Daniel Christopher, Hoang, T.D., Ieronymaki, M., Ihle, Håvard Tveit, Jewell, J.B., Karakci, Ata, Keihänen, Elina, Keskitalo, R., Maggio, G., Maino, D., Maris, M., Paradiso, S., Partridge, B., Reinecke, M., Suur-Uski, A.-S., Svalheim, Trygve Leithe, Tavagnacco, D., Thommesen, Harald, Tomasi, M., Watts, Duncan, Wehus, Ingunn Kathrine, Zacchei, A.
Publikováno v:
Brilenkov, Maksym Fornazier, K.S.F. Hergt, L.T. Hoerning, G.A. Marins, A. Murokoshi, T. Rahman, F. Stutzer, Nils-Ole Zhou, Y. Abdalla, F.B. Andersen, Kristian Joten Aurvik, Ragnhild Banerji, Ranajoy Basyrov, Artem Battista, A. Bersanelli, M. Bertocco, S. Bollanos, S. Colombo, L.P.L. Eriksen, Hans Kristian Kamfjord Eskilt, Johannes Røsok Foss, Marie Kristine Franceschet, C. Fuskeland, Unni Galeotta, S. Galloway, Mathew Gerakakis, S. Gjerløw, Eirik Hensley, B. Herman, Daniel Christopher Hoang, T.D. Ieronymaki, M. Ihle, Håvard Tveit Jewell, J.B. Karakci, Ata Keihänen, Elina Keskitalo, R. Maggio, G. Maino, D. Maris, M. Paradiso, S. Partridge, B. Reinecke, M. Suur-Uski, A.-S. Svalheim, Trygve Leithe Tavagnacco, D. Thommesen, Harald Tomasi, M. Watts, Duncan Wehus, Ingunn Kathrine Zacchei, A. . BeyondPlanck: IV. Simulations and validation. Astronomy and Astrophysics (A & A). 2023, 675
Astronomy and Astrophysics (A & A)
Astronomy and Astrophysics (A & A)
Externí odkaz:
http://hdl.handle.net/10852/105054
Autor:
Svalheim, Trygve Leithe, Zonca, A., Andersen, Kristian Joten, Aurvik, Ragnhild, Banerji, Ranajoy, Bersanelli, M., Bertocco, S., Brilenkov, Maksym, Carbone, M., Colombo, L.P.L., Eriksen, Hans Kristian Kamfjord, Foss, Marie Kristine, Franceschet, C., Fuskeland, Unni, Galeotta, S., Galloway, Mathew, Gerakakis, S., Gjerløw, Eirik, Hensley, B., Herman, Daniel Christopher, Iacobellis, M., Ieronymaki, M., Ihle, Håvard Tveit, Jewell, J.B., Karakci, Ata, Keihänen, Elina, Keskitalo, R., Maggio, G., Maino, D., Maris, M., Paradiso, S., Partridge, B., Reinecke, M., Suur-Uski, A.-S., Tavagnacco, D., Thommesen, Harald, Watts, Duncan, Wehus, Ingunn Kathrine, Zacchei, A.
Publikováno v:
Svalheim, Trygve Leithe Zonca, A. Andersen, Kristian Joten Aurvik, Ragnhild Banerji, Ranajoy Bersanelli, M. Bertocco, S. Brilenkov, Maksym Carbone, M. Colombo, L.P.L. Eriksen, Hans Kristian Kamfjord Foss, Marie Kristine Franceschet, C. Fuskeland, Unni Galeotta, S. Galloway, Mathew Gerakakis, S. Gjerløw, Eirik Hensley, B. Herman, Daniel Christopher Iacobellis, M. Ieronymaki, M. Ihle, Håvard Tveit Jewell, J.B. Karakci, Ata Keihänen, Elina Keskitalo, R. Maggio, G. Maino, D. Maris, M. Paradiso, S. Partridge, B. Reinecke, M. Suur-Uski, A.-S. Tavagnacco, D. Thommesen, Harald Watts, Duncan Wehus, Ingunn Kathrine Zacchei, A. . BeyondPlanck: IX. Bandpass and beam leakage corrections. Astronomy and Astrophysics (A & A). 2023, 675
Astronomy and Astrophysics (A & A)
Astronomy and Astrophysics (A & A)
Externí odkaz:
http://hdl.handle.net/10852/105055