no code implementations • 9 Mar 2021 • Fiona McCarthy, J. Colin Hill, Mathew S. Madhavacheril
Here, we show that inaccuracies in the modeling of $C_L^{\kappa\kappa}$ can yield surprisingly large biases on cosmological parameters inferred from the primary CMB power spectra measured by the upcoming Simons Observatory and CMB-S4 experiments.
Cosmology and Nongalactic Astrophysics
no code implementations • 4 Mar 2021 • Maya Mallaby-Kay, Zachary Atkins, Simone Aiola, Stefania Amodeo, J. Richard Bond, Erminia Calabrese, Grace E. Chesmore, Steve K. Choi, Kevin T. Crowley, Omar Darwish, Mark J. Devlin, Adriaan J. Duivenvoorden, Jo Dunkley, Simone Ferraro, Kyra Fichman, Patricio A. Gallardo, Joseph E. Golec, Yilun Guan, Dongwon Han, Matthew Hasselfield, J. Colin Hill, Matt Hilton, Renee Hlozek, Kevin M. Huffenberger, John P. Hughes, Brian J. Koopman, Thibaut Louis, Amanda MacInnis, Mathew S. Madhavacheril, Jeff McMahon, Kavilan Moodley, Sigurd Naess, Toshiya Namikawa, Federico Nati, Laura B. Newburgh, Michael D. Niemack, Lyman A. Page, Maria Salatino, Emmanuel Schaan, Alessandro Schillaci, Neelima Sehgal, Blake D. Sherwin, Cristobal Sifon, Sara Simon, Suzanne T. Staggs, Emilie R. Storer, Alexander van Engelen, Edward J. Wollack, Zhilei Xu
Two recent large data releases for the Atacama Cosmology Telescope (ACT), called DR4 and DR5, are available for public access.
Cosmology and Nongalactic Astrophysics
1 code implementation • 28 Jan 2021 • Abhishek S. Maniyar, Yacine Ali-Haïmoud, Julien Carron, Antony Lewis, Mathew S. Madhavacheril
In particular, we show that the Hu-Okamoto (HO02) estimator is not the absolute optimal lensing estimator that can be constructed out of quadratic combinations of $T, E$ and $B$ fields.
Cosmology and Nongalactic Astrophysics
no code implementations • 28 Dec 2020 • Sigurd Naess, Nick Battaglia, J. Richard Bond, Erminia Calabrese, Steve K. Choi, Nicholas F. Cothard, Mark Devlin, Cody J. Duell, Adriaan J. Duivenvoorden, Jo Dunkley, Rolando Dünner, Patricio A. Gallardo, Megan Gralla, Yilun Guan, Mark Halpern, J. Colin Hill, Matt Hilton, Kevin M. Huffenberger, Brian J. Koopman, Arthur B. Kosowsky, Mathew S. Madhavacheril, Jeff McMahon, Federico Nati, Michael D. Niemack, Lyman Page, Bruce Partridge, Maria Salatino, Neelima Sehgal, David Spergel, Suzanne Staggs, Edward J. Wollack, Zhilei Xu
The source's spectral index in flux between 90 and 150 GHz was positive, $\alpha = 1. 5\pm0. 2$.
Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena
no code implementations • 22 Dec 2020 • Adam D. Hincks, Simone Aiola, J. Richard Bond, Erminia Calabrese, Andrei Frolov, José Tomás Gálvez Ghersi, Renée Hložek, Matthew Johnson, Mathew S. Madhavacheril, Moritz Münchmeyer, Lyman A. Page, Jonathan Sievers, Suzanne T. Staggs, Alexander van Engelen
Observations of the cosmic microwave background (CMB) are an incredibly fertile source of information for studying the origins and evolution of the Universe.
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
no code implementations • 4 Nov 2020 • Maximilian H. Abitbol, David Alonso, Sara M. Simon, Jack Lashner, Kevin T. Crowley, Aamir M. Ali, Susanna Azzoni, Carlo Baccigalupi, Darcy Barron, Michael L. Brown, Erminia Calabrese, Julien Carron, Yuji Chinone, Jens Chluba, Gabriele Coppi, Kevin D. Crowley, Mark Devlin, Jo Dunkley, Josquin Errard, Valentina Fanfani, Nicholas Galitzki, Martina Gerbino, J. Colin Hill, Bradley R. Johnson, Baptiste Jost, Brian Keating, Nicoletta Krachmalnicoff, Akito Kusaka, Adrian T. Lee, Thibaut Louis, Mathew S. Madhavacheril, Heather McCarrick, Jeffrey McMahon, P. Daniel Meerburg, Federico Nati, Haruki Nishino, Lyman A. Page, Davide Poletti, Giuseppe Puglisi, Michael J. Randall, Aditya Rotti, Jacob Spisak, Aritoki Suzuki, Grant P. Teply, Clara Vergès, Edward J. Wollack, Zhilei Xu, Mario Zannoni
We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle $B$-mode polarization of the Cosmic Microwave Background, with a focus on the Simons Observatory (SO).
Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics
1 code implementation • 28 Jul 2020 • Dongwon Han, Neelima Sehgal, Amanda MacInnis, Alexander van Engelen, Blake D. Sherwin, Mathew S. Madhavacheril, Simone Aiola, Nicholas Battaglia, James A. Beall, Daniel T. Becker, Erminia Calabrese, Steve K. Choi, Omar Darwish, Edward V. Denison, Jo Dunkley, Simone Ferraro, Anna E. Fox, Matthew Hasselfield, J. Colin Hill, Gene C. Hilton, Matt Hilton, Renée Hložek, Johannes Hubmayr, John P. Hughes, Arthur Kosowsky, Jeff Van Lanen, Thibaut Louis, Kavilan Moodley, Sigurd Naess, Toshiya Namikawa, Federico Nati, John P. Nibarger, Michael D. Niemack, Lyman A. Page, Bruce Partridge, Frank J. Qu, Alessandro Schillaci, David N. Spergel, Suzanne Staggs, Emilie Storer, Edward J. Wollack
Our results show that gravitational lensing of the microwave background is internally consistent within the framework of the standard cosmological model.
Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
no code implementations • 2 Apr 2020 • Omar Darwish, Mathew S. Madhavacheril, Blake Sherwin, Simone Aiola, Nicholas Battaglia, James A. Beall, Daniel T. Becker, J. Richard Bond, Erminia Calabrese, Steve Choi, Mark J. Devlin, Jo Dunkley, Rolando Dünner, Simone Ferraro, Anna E. Fox, Patricio A. Gallardo, Yilun Guan, Mark Halpern, Dongwon Han, Matthew Hasselfield, J. Colin Hill, Gene C. Hilton, Matt Hilton, Adam D. Hincks, Shuay-Pwu Patty Ho, J. Hubmayr, John P. Hughes, Brian J. Koopman, Arthur Kosowsky, J. Van Lanen, Thibaut Louis, Marius Lungu, Amanda MacInnis, Loïc Maurin, Jeffrey McMahon, Kavilan Moodley, Sigurd Naess, Toshiya Namikawa, Laura Newburgh, John P. Nibarger, Micheal D. Niemack, Lyman A. Page, Bruce Partridge, Frank J. Qu, Naomi Robertson, Benjamin Schmitt, Neelima Sehgal, Cristóbal Sifón, David N. Spergel, Suzanne Staggs, Emilie Storer, Alexander van Engelen, Edward J. Wollack
We construct cosmic microwave background lensing mass maps using data from the 2014 and 2015 seasons of observations with the Atacama Cosmology Telescope (ACT).
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
1 code implementation • 28 Jan 2020 • Toshiya Namikawa, Yilun Guan, Omar Darwish, Blake D. Sherwin, Simone Aiola, Nicholas Battaglia, James A. Beall, Daniel T. Becker, J. Richard Bond, Erminia Calabrese, Grace E. Chesmore, Steve K. Choi, Mark J. Devlin, Joanna Dunkley, Rolando Dünner, Anna E. Fox, Patricio A. Gallardo, Vera Gluscevic, Dongwon Han, Matthew Hasselfield, Gene C. Hilton, Adam D. Hincks, Renée Hložek, Johannes Hubmayr, Kevin Huffenberger, John P. Hughes, Brian J. Koopman, Arthur Kosowsky, Thibaut Louis, Marius Lungu, Amanda MacInnis, Mathew S. Madhavacheril, Maya Mallaby-Kay, Loïc Maurin, Jeffrey McMahon, Kavilan Moodley, Sigurd Naess, Federico Nati, Laura B. Newburgh, John P. Nibarger, Michael D. Niemack, Lyman A. Page, Frank J. Qu, Naomi Robertson, Alessandro Schillaci, Neelima Sehgal, Cristóbal Sifón, Sara M. Simon, David N. Spergel, Suzanne T. Staggs, Emilie R. Storer, Alexander van Engelen, Jeff Van Lanen, Edward J. Wollack
We present new constraints on anisotropic birefringence of the cosmic microwave background polarization using two seasons of data from the Atacama Cosmology Telescope covering $456$ square degrees of sky.
Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment High Energy Physics - Phenomenology
1 code implementation • 13 Nov 2019 • Mathew S. Madhavacheril, J. Colin Hill, Sigurd Naess, Graeme E. Addison, Simone Aiola, Taylor Baildon, Nicholas Battaglia, Rachel Bean, J. Richard Bond, Erminia Calabrese, Victoria Calafut, Steve K. Choi, Omar Darwish, Mark J. Devlin, Joanna Dunkley, Rolando Dünner, Simone Ferraro, Patricio A. Gallardo, Mark Halpern, Dongwon Han, Matthew Hasselfield, Matt Hilton, Adam D. Hincks, Renée Hložek, Shuay-Pwu Patty Ho, Kevin M. Huffenberger, John P. Hughes, Brian J. Koopman, Arthur Kosowsky, Martine Lokken, Thibaut Louis, Marius Lungu, Amanda MacInnis, Loïc Maurin, Jeffrey J. McMahon, Kavilan Moodley, Federico Nati, Michael D. Niemack, Lyman A. Page, Bruce Partridge, Naomi Robertson, Neelima Sehgal, Emmanuel Schaan, Alessandro Schillaci, Blake D. Sherwin, Cristóbal Sifón, Sara M. Simon, David N. Spergel, Suzanne T. Staggs, Emilie R. Storer, Alexander van Engelen, Eve M. Vavagiakis, Edward J. Wollack, Zhilei Xu
In this paper, we implement a component separation method based on the internal linear combination (ILC) approach which we have designed to optimally account for the anisotropic noise (in the 2D Fourier domain) often found in ground-based CMB experiments.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
1 code implementation • 26 Jun 2018 • Zack Li, Vera Gluscevic, Kimberly K. Boddy, Mathew S. Madhavacheril
The constraints benefit from a wide survey, and show gradual improvement for instrumental noise levels from 10 $\mu$K-arcmin to 1 $\mu$K-arcmin and resolution from 5 arcmin to 1 arcmin.
Cosmology and Nongalactic Astrophysics
