[{"type":"journal_article","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication":"Physical Review D","article_processing_charge":"No","day":"04","year":"2016","date_created":"2024-09-06T07:44:28Z","date_published":"2016-10-04T00:00:00Z","external_id":{"arxiv":["1609.03973"]},"_id":"17666","article_type":"original","oa":1,"arxiv":1,"status":"public","date_updated":"2024-09-25T07:49:17Z","doi":"10.1103/physrevd.94.083506","publication_identifier":{"issn":["2470-0010","2470-0029"]},"main_file_link":[{"url":" https://doi.org/10.48550/arXiv.1609.03973","open_access":"1"}],"publisher":"American Physical Society","title":"Do dark matter halos explain lensing peaks?","quality_controlled":"1","abstract":[{"lang":"eng","text":"We have investigated a recently proposed halo-based model, Camelus, for predicting weak-lensing peak counts, and compared its results over a collection of 162 cosmologies with those from N-body simulations. While counts from both models agree for peaks with S/N>1 (where S/N is the ratio of the peak height to the r.m.s. shape noise), we find ≈50% fewer counts for peaks near S/N=0 and significantly higher counts in the negative S/N tail. Adding shape noise reduces the differences to within 20% for all cosmologies. We also found larger covariances that are more sensitive to cosmological parameters. As a result, credibility regions in the {Ωm,σ8} are ≈30% larger. Even though the credible contours are commensurate, each model draws its predictive power from different types of peaks. Low peaks, especially those with 2<S/N<3, convey important cosmological information in N-body data, as shown in \\cite{DietrichHartlap, Kratochvil2010}, but \\textsc{Camelus} constrains cosmology almost exclusively from high significance peaks (S/N>3). Our results confirm the importance of using a cosmology-dependent covariance with at least a 14\\% improvement in parameter constraints. We identified the covariance estimation as the main driver behind differences in inference, and suggest possible ways to make Camelus even more useful as a highly accurate peak count emulator."}],"publication_status":"published","author":[{"full_name":"Zorrilla Matilla, José Manuel","last_name":"Zorrilla Matilla","first_name":"José Manuel"},{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán","full_name":"Haiman, Zoltán","last_name":"Haiman"},{"first_name":"Daniel","last_name":"Hsu","full_name":"Hsu, Daniel"},{"full_name":"Gupta, Arushi","last_name":"Gupta","first_name":"Arushi"},{"last_name":"Petri","full_name":"Petri, Andrea","first_name":"Andrea"}],"month":"10","volume":94,"intvolume":"        94","scopus_import":"1","language":[{"iso":"eng"}],"oa_version":"Preprint","extern":"1","article_number":"083506","citation":{"mla":"Zorrilla Matilla, José Manuel, et al. “Do Dark Matter Halos Explain Lensing Peaks?” <i>Physical Review D</i>, vol. 94, no. 8, 083506, American Physical Society, 2016, doi:<a href=\"https://doi.org/10.1103/physrevd.94.083506\">10.1103/physrevd.94.083506</a>.","ieee":"J. M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, and A. Petri, “Do dark matter halos explain lensing peaks?,” <i>Physical Review D</i>, vol. 94, no. 8. American Physical Society, 2016.","chicago":"Zorrilla Matilla, José Manuel, Zoltán Haiman, Daniel Hsu, Arushi Gupta, and Andrea Petri. “Do Dark Matter Halos Explain Lensing Peaks?” <i>Physical Review D</i>. American Physical Society, 2016. <a href=\"https://doi.org/10.1103/physrevd.94.083506\">https://doi.org/10.1103/physrevd.94.083506</a>.","ista":"Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. 2016. Do dark matter halos explain lensing peaks? Physical Review D. 94(8), 083506.","apa":"Zorrilla Matilla, J. M., Haiman, Z., Hsu, D., Gupta, A., &#38; Petri, A. (2016). Do dark matter halos explain lensing peaks? <i>Physical Review D</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevd.94.083506\">https://doi.org/10.1103/physrevd.94.083506</a>","ama":"Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. Do dark matter halos explain lensing peaks? <i>Physical Review D</i>. 2016;94(8). doi:<a href=\"https://doi.org/10.1103/physrevd.94.083506\">10.1103/physrevd.94.083506</a>","short":"J.M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, A. Petri, Physical Review D 94 (2016)."},"issue":"8"},{"oa":1,"article_type":"original","date_updated":"2024-09-25T08:01:19Z","status":"public","doi":"10.1103/physrevd.94.103501","arxiv":1,"main_file_link":[{"url":" https://doi.org/10.48550/arXiv.1608.03169","open_access":"1"}],"publication_identifier":{"issn":["2470-0010","2470-0029"]},"quality_controlled":"1","title":"CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts","abstract":[{"text":"Unprecedentedly precise cosmic microwave background (CMB) data are expected from ongoing and near-future CMB Stage-III and IV surveys, which will yield reconstructed CMB lensing maps with effective resolution approaching several arcminutes. The small-scale CMB lensing fluctuations receive non-negligible contributions from nonlinear structure in the late-time density field. These fluctuations are not fully characterized by traditional two-point statistics, such as the power spectrum. Here, we use N-body ray-tracing simulations of CMB lensing maps to examine two higher-order statistics: the lensing convergence one-point probability distribution function (PDF) and peak counts. We show that these statistics contain significant information not captured by the two-point function, and provide specific forecasts for the ongoing Stage-III Advanced Atacama Cosmology Telescope (AdvACT) experiment. Considering only the temperature-based reconstruction estimator, we forecast 9σ (PDF) and 6σ (peaks) detections of these statistics with AdvACT. Our simulation pipeline fully accounts for the non-Gaussianity of the lensing reconstruction noise, which is significant and cannot be neglected. Combining the power spectrum, PDF, and peak counts for AdvACT will tighten cosmological constraints in the Ωm-σ8 plane by ≈30%, compared to using the power spectrum alone.","lang":"eng"}],"publisher":"American Physical Society","publication":"Physical Review D","type":"journal_article","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","day":"02","article_processing_charge":"No","year":"2016","_id":"17669","external_id":{"arxiv":["1608.03169"]},"date_published":"2016-11-02T00:00:00Z","date_created":"2024-09-06T07:47:04Z","extern":"1","issue":"10","citation":{"ama":"Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. <i>Physical Review D</i>. 2016;94(10). doi:<a href=\"https://doi.org/10.1103/physrevd.94.103501\">10.1103/physrevd.94.103501</a>","apa":"Liu, J., Hill, J. C., Sherwin, B. D., Petri, A., Böhm, V., &#38; Haiman, Z. (2016). CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. <i>Physical Review D</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevd.94.103501\">https://doi.org/10.1103/physrevd.94.103501</a>","short":"J. Liu, J.C. Hill, B.D. Sherwin, A. Petri, V. Böhm, Z. Haiman, Physical Review D 94 (2016).","chicago":"Liu, Jia, J. Colin Hill, Blake D. Sherwin, Andrea Petri, Vanessa Böhm, and Zoltán Haiman. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints from the One-Point Probability Distribution Function and Peak Counts.” <i>Physical Review D</i>. American Physical Society, 2016. <a href=\"https://doi.org/10.1103/physrevd.94.103501\">https://doi.org/10.1103/physrevd.94.103501</a>.","ieee":"J. Liu, J. C. Hill, B. D. Sherwin, A. Petri, V. Böhm, and Z. Haiman, “CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts,” <i>Physical Review D</i>, vol. 94, no. 10. American Physical Society, 2016.","mla":"Liu, Jia, et al. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints from the One-Point Probability Distribution Function and Peak Counts.” <i>Physical Review D</i>, vol. 94, no. 10, 103501, American Physical Society, 2016, doi:<a href=\"https://doi.org/10.1103/physrevd.94.103501\">10.1103/physrevd.94.103501</a>.","ista":"Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. 2016. CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. Physical Review D. 94(10), 103501."},"article_number":"103501","volume":94,"month":"11","author":[{"first_name":"Jia","full_name":"Liu, Jia","last_name":"Liu"},{"last_name":"Hill","full_name":"Hill, J. Colin","first_name":"J. Colin"},{"first_name":"Blake D.","full_name":"Sherwin, Blake D.","last_name":"Sherwin"},{"first_name":"Andrea","full_name":"Petri, Andrea","last_name":"Petri"},{"first_name":"Vanessa","full_name":"Böhm, Vanessa","last_name":"Böhm"},{"full_name":"Haiman, Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán"}],"publication_status":"published","scopus_import":"1","intvolume":"        94","oa_version":"Preprint","language":[{"iso":"eng"}]}]