Cosmological constraints from density-split clustering in the BOSS CMASS galaxy sample

florpi/sunbird 28 Sep 2023

We present a clustering analysis of the BOSS DR12 CMASS galaxy sample, combining measurements of the galaxy two-point correlation function and density-split clustering down to a scale of $1\, h^{-1}{\rm Mpc}$.

Cosmology and Nongalactic Astrophysics

1
28 Sep 2023

The Hyper Suprime-Cam extended Point Spread Functions and applications to measuring the intra-halo light

luciagarate/hsc_psfs 28 Sep 2023

Our results show that not removing the PSF light can overestimate the IHL SB by $\sim$ 1. 7 mag arcsec$^{-2}$ and the $\mathrm{f_{IHL}}$ by $\sim$ 30%.

Astrophysics of Galaxies

4
28 Sep 2023

Improvement of digest2 NEO Classification Code -- utilizing the Astrometry Data Exchange Standard

smithsonian/digest2 28 Sep 2023

We describe enhancements to the digest2 software, a short-arc orbit classifier for heliocentric orbits.

Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics

1
28 Sep 2023

Atmospheric loss in giant impacts depends on pre-impact surface conditions

sjl499/lock_stewart_2023_psj_atmospheric_loss 28 Sep 2023

Here we use a suite of 1D hydrodynamic simulations and impedance match calculations to quantify the effect that pre-impact surface conditions (such as atmospheric pressure and presence of an ocean) have on the efficiency of atmospheric and ocean loss from proto-planets during giant impacts.

Earth and Planetary Astrophysics Geophysics

0
28 Sep 2023

SUNBIRD: A simulation-based model for full-shape density-split clustering

florpi/sunbird 28 Sep 2023

We present a simulation-based model that is able to capture the cosmological dependence of the full shape of the density-split clustering (DSC) statistics down to intra-halo scales.

Cosmology and Nongalactic Astrophysics

1
28 Sep 2023

Statistical Bias in the Hubble Constant and Mass Power Law Slope for Mock Strong Lenses

dilysruan/paper-ruan-keeton-2023 28 Sep 2023

Assuming a source at redshift 2. 0 and an EPL+XS lens at redshift 0. 3, we find that the bias can be reduced, but not eliminated, if we limit the sample to systems with annulus lengths $\Delta r_{1, 2} \gtrsim 0. 3$ arcsec.

Cosmology and Nongalactic Astrophysics

0
28 Sep 2023

Optimal constraints on Primordial non-Gaussianity with the eBOSS DR16 quasars in Fourier space

mcagliari/eboss-dr16-qso-oqe 27 Sep 2023

If the quasars have a lower response to local PNG, our optimal constraint becomes $-23<f_{\rm NL}<21$ at $68\%$, with an improvement of $30\%$ over standard analyses.

Cosmology and Nongalactic Astrophysics

0
27 Sep 2023

[CII] Spectral Mapping of the Galactic Wind and Starbursting Disk of M82 with SOFIA

rclevy/M82_CII 27 Sep 2023

We compare the [CII] line profiles to observations of CO and HI and find that likely the majority ($>55$%) of the [CII] emission in the outflow is associated with the neutral atomic medium.

Astrophysics of Galaxies

0
27 Sep 2023

Non-ideal magnetohydrodynamics on a moving mesh II: Hall effect

chessoli/c-shock-structure 27 Sep 2023

The core of our algorithm is based on an estimation of the magnetic field gradients by a least-square reconstruction on the unstructured mesh, which we also used in the companion paper for Ohmic and ambipolar diffusion.

Instrumentation and Methods for Astrophysics

0
27 Sep 2023

Sensitivity Analysis of Simulation-Based Inference for Galaxy Clustering

modichirag/contrastive_cosmology 26 Sep 2023

To guide our steps in this, we perform a sensitivity analysis of SBI for galaxy clustering on various components of the cosmological simulations: gravity model, halo-finder and the galaxy-halo distribution models (halo-occupation distribution, HOD).

Cosmology and Nongalactic Astrophysics

0
26 Sep 2023