Browsing by Subject "Early universe"

Now showing items 1-3 of 3

  • Results from EDGES high-band. II. Constraints on parameters of early galaxies 

    Monsalve, Raúl; Greig, Bradley; Bowman, Judd D.; Mesinger, Andrei; Rogers, Alan E. E.; Mozdzen, Thomas J.; Kern, Nicholas S.; Mahesh, Nivedita (2018-08)
    We use the sky-average spectrum measured by EDGES High-band (90–190 MHz) to constrain parameters of early galaxies independent of the absorption feature at 78 MHz reported by Bowman et al. These parameters represent ...

  • Results from edges high-band. iii. new constraints on parameters of the early universe 

    Monsalve, Raúl A.; Fialkov, Anastasia; Bowman, Judd D.; Rogers, Alan E. E.; Mozdzen, Thomas J.; Cohen, Aviad; Barkana, Rennan; Mahesh, Nivedita (2019-04-10)
    We present new constraints on parameters of cosmic dawn and the epoch of reionization derived from the EDGES High-Band spectrum (90–190 MHz). The parameters are probed by evaluating global 21 cm signals generated with the ...

  • Two-year Cosmology Large Angular Scale Surveyor (CLASS) Observations: A Measurement of Circular Polarization at 40 GHz 

    Padilla, Ivan L.; Eimer, Joseph R.; Li, Yunyang; Addison, Graeme E.; Ali, Aamir; Appel, John W.; Bennett, Charles L.; Bustos Placencia, Ricardo; Brewer, Michael K.; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Dahal, Sumit; Denis, Kevin; Dünner, Rolando; Essinger-Hileman, Thomas; Fluxá, Pedro; Gothe, Dominik; Haridas, Saianeesh K.; Harrington, Kathleen; Iuliano, Jeffrey; Karakla, John; Marriage, Tobias A.; Miller, Nathan J.; Núñez, Carolina; Parker, Lucas; Petroff, Matthew A.; Reeves, Rodrigo; Rostem, Karwan; Stevens, Robert W.; Nunes Valle, Deniz Augusto; Watts, Duncan J.; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (2020-02-01)
    We report measurements of circular polarization from the first two years of observation with the 40 GHz polarimeter of the Cosmology Large Angular Scale Surveyor (CLASS). CLASS is conducting a multi-frequency survey ...