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Reconstructing redshift distributions with photometric galaxy clustering
Hui Peng, Yu Yu
https://arxiv.org/abs/2406.04407 https://arx…

Reconstructing redshift distributions with photometric galaxy clustering
The accurate determination of the true redshift distributions in tomographic bins is critical for cosmological constraints from photometric surveys. The proposed redshift self-calibration method, which utilizes the photometric galaxy clustering alone, is highly convenient and avoids the challenges from incomplete or unrepresentative spectroscopic samples in external calibration. However, the imperfection of the theoretical approximation on broad bins as well as the flaw of the previous algorith…

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Deformations of dotted graphs consisting of standard circles
Inasa Nakamura
https://arxiv.org/abs/2406.04634 https://arxiv.org/pdf/24…

Deformations of dotted graphs consisting of standard circles
Dotted graphs are certain finite graphs with vertices of degree 2 called dots in the $xy$-plane $\mathbb{R}^2$, and a dotted graph is said to be admissible if it is associated with a lattice polytope in $\mathbb{R}^2$ each of whose edge is parallel to the $x$-axis or the $y$-axis. A dotted graph is said to be reducible if certain types of deformations are applicable. In this paper, we investigate the reducibility of admissible dotted graphs in certain simple forms consisting of standard circles.

On the capability of high redshift kSZ measurement with galaxy surveys
Ziyang Chen (SJTU), Pengjie Zhang (SJTU)
https://arxiv.org/abs/2406.04735 https://…

On the capability of high redshift kSZ measurement with galaxy surveys
The kSZ effect has been detected at z<1 using various techniques and data sets. The ongoing and upcoming spectroscopic galaxy surveys such as DESI and PFS will push the detection beyond z = 1, and therefore map the baryon distribution at high redshifts. Such detection can be achieved by both the kSZ stacking and tomography methods. While the two methods are theoretically equivalent, they differ significantly in the probed physics and scales, and required data sets. Taking the combination of PFS…

Deformations of dotted graphs consisting of standard circles
Inasa Nakamura
https://arxiv.org/abs/2406.04634 https://arxiv.org/pdf/24…

Deformations of dotted graphs consisting of standard circles
Dotted graphs are certain finite graphs with vertices of degree 2 called dots in the $xy$-plane $\mathbb{R}^2$, and a dotted graph is said to be admissible if it is associated with a lattice polytope in $\mathbb{R}^2$ each of whose edge is parallel to the $x$-axis or the $y$-axis. A dotted graph is said to be reducible if certain types of deformations are applicable. In this paper, we investigate the reducibility of admissible dotted graphs in certain simple forms consisting of standard circles.

This https://arxiv.org/abs/2404.07272 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

A comparison of effective field theory models of redshift space galaxy power spectra for DESI 2024 and future surveys
In preparation for the next generation of galaxy redshift surveys, and in particular the year-one data release from the Dark Energy Spectroscopic Instrument (DESI), we investigate the consistency of a variety of effective field theory models that describe the galaxy-galaxy power spectra in redshift space into the quasi-linear regime using 1-loop perturbation theory. These models are employed in the pipelines \texttt{velocileptors}, \texttt{PyBird}, and \texttt{Folps$ν$}. While these models hav…

This https://arxiv.org/abs/2401.02929 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
We present cosmological constraints from the sample of Type Ia supernovae (SN Ia) discovered during the full five years of the Dark Energy Survey (DES) Supernova Program. In contrast to most previous cosmological samples, in which SN are classified based on their spectra, we classify the DES SNe using a machine learning algorithm applied to their light curves in four photometric bands. Spectroscopic redshifts are acquired from a dedicated follow-up survey of the host galaxies. After accounting …