Cosmology with the Highly Redshifted 21cm Line

Kavli Affiliate: Jacqueline Hewitt | First 5 Authors: Adrian Liu, James Aguirre, Yacine Ali-Haimoud, Marcelo Alvarez, Adam Beardsley | Summary: In addition to being a probe of Cosmic Dawn and Epoch of Reionization astrophysics, the 21cm line at $z>6$ is also a powerful way to constrain cosmology. Its power derives from several unique capabilities. First, […]


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Astro2020 Science White Paper: Insights Into the Epoch of Reionization with the Highly-Redshifted 21-cm Line

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: Steven Furlanetto, Chris L. Carilli, Jordan Mirocha, James Aguirre, Yacine Ali-Haimoud | Summary: The epoch of reionization, when photons from early galaxies ionized the intergalactic medium about a billion years after the Big Bang, is the last major phase transition in the Universe’s history. Measuring the characteristics […]


Continue.. Astro2020 Science White Paper: Insights Into the Epoch of Reionization with the Highly-Redshifted 21-cm Line

Astro2020 Science White Paper: Synergies Between Galaxy Surveys and Reionization Measurements

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: Steven Furlanetto, Adam Beardsley, Chris L. Carilli, Jordan Mirocha, James Aguirre | Summary: The early phases of galaxy formation constitute one of the most exciting frontiers in astrophysics. It is during this era that the first luminous sources reionize the intergalactic medium – the moment when structure […]


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A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270

Kavli Affiliate: Gabor Furesz | First 5 Authors: Maximilian N. G√ľnther, Francisco J. Pozuelos, Jason A. Dittmann, Diana Dragomir, Stephen R. Kane | Summary: We report the Transiting Exoplanet Survey Satellite discovery of three small planets transiting one of the nearest and brightest M dwarf hosts to date, TOI-270 (TIC 259377017; K-mag 8.3; 22.5 parsec). […]


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Is the stellar mass-stellar metallicity relation universal in the Milky Way satellites and beyond?

Kavli Affiliate: Qingjuan Yu | First 5 Authors: Moran Xia, Qingjuan Yu, , , | Summary: Observations reveal a universal stellar mass-stellar metallicity relation (MZR) existing in Local Group dwarfs of different types, $Z_*propto M_*^{alpha}$ with $alpha=0.30pm0.02$. In this work, we investigate the "universality" of the MZRs for both satellites and central galaxies in a […]


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