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Found 7 papers, 5 papers with code
Astronomical image time series classification using CONVolutional attENTION (ConvEntion)
In this work, we solved various problems the datasets tend to suffer from and we present new results for classifications using astronomical image time series with an increase in accuracy of 13%, compared to state-of-the-art approaches that use image time series, and a 12% increase, compared to approaches that use light curves.
Primordial non-Gaussianity from the Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey I: Catalogue Preparation and Systematic Mitigation
We develop a neural network-based approach to mitigate spurious fluctuations in the density field caused by spatial variations in the quality of the imaging data used to select targets for follow-up spectroscopy.
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: exploring the Halo Occupation Distribution model of Emission Line Galaxies
We study how these choices impact the clustering statistics while keeping the number density and bias fixed to that from eBOSS ELGs.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
Beyond BAO: improving cosmological constraints from BOSS with measurement of the void-galaxy cross-correlation
Combining void information with that from BAO and galaxy RSD in the same CMASS sample, we measure $D_A(0. 57)/r_s=9. 36\pm0. 07$ (at 0. 75% precision), $H(0. 57)r_s=(14. 03\pm0. 16)\;10^3$ kms$^{-1}$Mpc$^{-1}$ (1. 1%) and $f\sigma_8=0. 450\pm0. 019$ (4. 2%), consistent with cosmic microwave background (CMB) measurements from Planck.
Cosmology and Nongalactic Astrophysics
Exploring cosmic homogeneity with the BOSS DR12 galaxy sample
Defining the scale of transition to homogeneity as the scale at which $\mathcal{D}_2(r)$ reaches 3 within $1\%$, i. e. $\mathcal{D}_2(r)>2. 97$ for $r>\mathcal{R}_H$, we find $\mathcal{R}_H = (63. 3\pm0. 7) \ h^{-1}\ \mathrm{Mpc}$, in agreement at the percentage level with the predictions of the $\Lambda$CDM model $\mathcal{R}_H=62. 0\ h^{-1}\ \mathrm{Mpc}$.
Cosmology and Nongalactic Astrophysics
A 14 $h^{-3}$ Gpc$^3$ study of cosmic homogeneity using BOSS DR12 quasar sample
For the matter distribution we obtain $3-\langle D_2 \rangle < 5 \times 10^{-5}$ (2 $\sigma$) over the range $250<r<1200 \, h^{-1}$Mpc, consistent with homogeneity on large scales.
Cosmology and Nongalactic Astrophysics
The one-dimensional Ly-alpha forest power spectrum from BOSS
We have developed two independent methods to measure the one-dimensional power spectrum of the transmitted flux in the Lyman-$\alpha$ forest.
Cosmology and Nongalactic Astrophysics
