Searching for axionlike time-dependent cosmic birefringence with data from SPT-3G

Ferguson, K. R.; Anderson, A. J.; Whitehorn, N.; Archipley, Melanie; Avva, J. S.; Balkenhol, L.; Benabed, K.; Bender, A. N.; Benson, B. A.; Bianchini, F.; Bleem, L. E.; Bouchet, F. R.; Bryant, Lincoln; Camphuis, E.; Carlstrom, J. E.; Cecil, T. W.; Chang, C. L.; Chaubal, P.; Chichura, Paul; Chou, T-L.; Crawford, T. M.; Cukierman, A.; Daley, C.; Haan, T. de; Dibert, K.; Dobbs, M.; Doussot, A.; Dutcher, D.; Everett, W.; Feng, Chang; Foster, A.; Galli, S.; Gambrel, A. E.; Gardner, R. W.; Goeckner-Wald, N.; Gualtieri, R.; Guidi, F.; Guns, S.; Halverson, N. W.; Hivon, E.; Holder, G. P.; Holzapfel, W. L.; Hood, J. C.; Huang, N.; Knox, L.; Korman, M.; Kuo, Chao-Lin; T., Lee, A.; Lowitz, A. E.; Lu, C.; Millea, M.; Montgomery, J.; Natoli, T.; Noble, G. I.; Novosad, V.; Omori, Y.; Padin, S.; Pan, Z.; Paschos, Pascal; Prabhu, K.; Quan, Wei; Rahlin, A.; Reichardt, Christian; Rouble, M.; Ruhl, J. E.; Schiappucci, E.; Smecher, G.; Sobrin, J. A.; Stephen, J.; Suzuki, Aritoki; Tandoi, C.; Thompson, K. L.; Thorne, Ben; Tucker, C.; Umiltà, Caterina; Vieira, J. D.; G., Wang,; Wu, W. L. K.; Yefremenko, V.; Young, M. R.

doi:10.1103/physrevd.106.042011

Cited by 17 publications

(6 citation statements)

References 48 publications

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“…The degeneracy is sometimes exploited as a means of "selfcalibration" by assuming a standard cosmology in which the true EB vanishes (Keating et al 2013). Although this type of calibration removes sensitivity to an isotropic, static cosmic birefringence, it is still possible to search for cosmic birefringence that is anisotropic (Ade et al 2015;BICEP2 Collaboration et al 2017;Bianchini et al 2020;Namikawa et al 2020) or timevariable (BICEP/ Keck et al 2021Keck et al , 2022Ferguson et al 2022). Through a campaign of modeling and calibration, it is possible to account for instrumental systematics and measure the isotropic, static cosmic-birefringence angle.…”

Section: Cosmic Birefringencementioning

confidence: 99%

Magnetic Misalignment of Interstellar Dust Filaments

Cukierman

Clark

Halal

2023

ApJ

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We present evidence for scale-independent misalignment of interstellar dust filaments and magnetic fields. We estimate the misalignment by comparing millimeter-wave dust-polarization measurements from Planck with filamentary structures identified in neutral-hydrogen (H i) measurements from Hi4PI. We find that the misalignment angle displays a scale independence (harmonic coherence) for features larger than the Hi4PI beamwidth (16.′2). We additionally find a spatial coherence on angular scales of  ( 1 ° ) . We present several misalignment estimators formed from the auto- and cross-spectra of dust-polarization and H i-based maps, and we also introduce a map-space estimator. Applied to large regions of the high-Galactic-latitude sky, we find a global misalignment angle of ∼2°, which is robust to a variety of masking choices. By dividing the sky into small regions, we show that the misalignment angle correlates with the parity-violating TB cross-spectrum measured in the Planck dust maps. The misalignment paradigm also predicts a dust EB signal, which is of relevance in the search for cosmic birefringence but as yet undetected; the measurements of EB are noisier than those of TB, and our correlations of EB with misalignment angle are found to be weaker and less robust to masking choices. We also introduce an H i-based dust-polarization template constructed from the Hessian matrix of the H i intensity, which is found to correlate more strongly than previous templates with Planck dust B modes.

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Section: Cosmic Birefringencementioning

confidence: 99%

Magnetic Misalignment of Interstellar Dust Filaments

Cukierman

Clark

Halal

2023

ApJ

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“…The lighter oscillating result is the exact bound, and the median result, g φγ < (2.4×10 −11 GeV −1 )×(m φ /10 −21 eV), is shown in darker red. The median deterministic bounds for Polarbear, BICEP, and SPT are the dashed lines: these are the published results in [19] and [20]. The green 'washout' bound was calculated in F19 from the lack of CMB polarization suppression.…”

Section: Discussionmentioning

confidence: 99%

“…This signal has been constrained by other CMB experiments: BICEP/Keck, in [18,19] (the latter hereafter BK22), and the South Pole Telescope (SPT) in [20] (hereafter SPT22). Our analysis is similar to these analyses, with two primary differences.…”

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confidence: 98%

Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

Adachi,

Adkins,

Arnold

et al. 2023

Preprint

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“…The signal here appears not in the CMB power spectrum but rather in timeseries data, which is why it required dedicated analyses within the collaborations. Three CMB experiments have taken up this idea since it was proposed: BICEP/KECK [706,707], the South Pole Telescope (SPT) [708], and POLARBEAR [709]. The latter has also very recently improved their best constraint by looking at polarisation oscillations towards the direction of the Crab nebula [710].…”

Section: Pos(cosmicwispers)040 Pos(cosmicwispers)040mentioning

confidence: 99%

“…Axion cosmology Ciaran A. J. O'Hare here with more data because the local effect is not cosmic-variance limited. A projection for the potential ultimate reach of the next-generation ground-based CMB surveys, CMB-S4, is also shown-taken from SPT's study [708].…”

Section: Pos(cosmicwispers)040 Pos(cosmicwispers)040mentioning

confidence: 99%

Cosmology of axion dark matter

O'Hare

2024

Proceedings of 1st General Meeting and 1st Training School of the COST Action COSMIC WSIPers — PoS(COSMICWISPers)

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I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for presentday searches, including: early-Universe production mechanisms, predictions of the axion mass, bounds on axion properties derived from cosmological data, as well as the direct and indirect detection of relic axion populations.

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Searching for axionlike time-dependent cosmic birefringence with data from SPT-3G

Cited by 17 publications

References 48 publications

Magnetic Misalignment of Interstellar Dust Filaments

Magnetic Misalignment of Interstellar Dust Filaments

Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

Cosmology of axion dark matter

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