Simons Observatory: Pre-deployment Performance of a Large Aperture Telescope Optics Tube in the 90 and 150 GHz Spectral Bands

Kavli Affiliate: Jeffrey J. McMahon | First 5 Authors: Carlos E. Sierra, Kathleen Harrington, Shreya Sutariya, Thomas Alford, Anna M. Kofman | Summary: The Simons Observatory will map the temperature and polarization over half of the sky, at millimeter wavelengths in six spectral bands from the Atacama Desert in Chile. These data will provide new […]


Continue.. Simons Observatory: Pre-deployment Performance of a Large Aperture Telescope Optics Tube in the 90 and 150 GHz Spectral Bands

Effect of the Large Magellanic Cloud on the kinematics of Milky Way satellites and virial mass estimate

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Andrey Kravtsov, Sophia Winney, , , | Summary: We present a study illustrating the effects of the passage of a Large Magellanic Cloud (LMC) mass satellite on the distance and velocity distributions of satellites in $Lambda+$Cold Dark Matter simulations of Milky Way (MW) sized halos. In agreement […]


Continue.. Effect of the Large Magellanic Cloud on the kinematics of Milky Way satellites and virial mass estimate

Effect of the Large Magellanic Cloud on the kinematics of Milky Way satellites and virial mass estimate

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Andrey Kravtsov, Sophia Winney, , , | Summary: We present a study illustrating the effects of the passage of a Large Magellanic Cloud (LMC) mass satellite on the distance and velocity distributions of satellites in $Lambda+$Cold Dark Matter simulations of Milky Way (MW) sized halos. In agreement […]


Continue.. Effect of the Large Magellanic Cloud on the kinematics of Milky Way satellites and virial mass estimate

The Simons Observatory: Design, integration, and testing of the small aperture telescopes

Kavli Affiliate: Jeffrey J. McMahon | First 5 Authors: Nicholas Galitzki, Tran Tsan, Jake Spisak, Michael Randall, Max Silva-Feaver | Summary: The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment that includes small-aperture telescopes (SATs) observing from an altitude of 5,200 m in the Atacama Desert in Chile. The SO SATs will […]


Continue.. The Simons Observatory: Design, integration, and testing of the small aperture telescopes

The Simons Observatory: Design, integration, and testing of the small aperture telescopes

Kavli Affiliate: Jeffrey J. McMahon | First 5 Authors: Nicholas Galitzki, Tran Tsan, Jake Spisak, Michael Randall, Max Silva-Feaver | Summary: The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment that includes small-aperture telescopes (SATs) observing from an altitude of 5,200 m in the Atacama Desert in Chile. The SO SATs will […]


Continue.. The Simons Observatory: Design, integration, and testing of the small aperture telescopes

Stochastic star formation and the abundance of $z>10$ UV-bright galaxies

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Andrey Kravtsov, Vasily Belokurov, , , | Summary: We use a well-motivated galaxy formation framework to predict stellar masses, star formation rates (SFR), and ultraviolet (UV) luminosities of galaxy populations at redshifts $zin 5-16$, taking into account stochasticity of SFR in a controlled manner. We demonstrate that […]


Continue.. Stochastic star formation and the abundance of $z>10$ UV-bright galaxies

Astrometric Redshifts of Supernovae

Kavli Affiliate: Richard Kessler | First 5 Authors: Jaemyoung, Lee, Masao Sako, Richard Kessler, Alex I. Malz | Summary: Differential Chromatic Refraction (DCR) is caused by the wavelength dependence of our atmosphere’s refractive index, which shifts the apparent positions of stars and galaxies and distorts their shapes depending on their spectral energy distributions (SEDs). While […]


Continue.. Astrometric Redshifts of Supernovae

Astrometric Redshifts of Supernovae

Kavli Affiliate: Richard Kessler | First 5 Authors: Jaemyoung Jason Lee, Masao Sako, Richard Kessler, Alex I. Malz, The LSST Dark Energy Science Collaboration | Summary: Differential Chromatic Refraction (DCR) is caused by the wavelength dependence of our atmosphere’s refractive index, which shifts the apparent positions of stars and galaxies and distorts their shapes depending […]


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LAMOST J1010+2358 is not a Pair-Instability Supernova Relic

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Pierre N. Thibodeaux, Alexander P. Ji, William Cerny, Evan N. Kirby, Joshua D. Simon | Summary: The discovery of a star formed out of pair-instability supernova ejecta would have massive implications for the Population III star initial mass function and the existence of stars over 100 […]


Continue.. LAMOST J1010+2358 is not a Pair-Instability Supernova Relic

LAMOST J1010+2358 is not a Pair-Instability Supernova Relic

Kavli Affiliate: Alexander P. Ji | First 5 Authors: Pierre N. Thibodeaux, Alexander P. Ji, William Cerny, Evan N. Kirby, Joshua D. Simon | Summary: The discovery of a star formed out of pair-instability supernova ejecta would have massive implications for the Population III star initial mass function and the existence of stars over 100 […]


Continue.. LAMOST J1010+2358 is not a Pair-Instability Supernova Relic