Browsing Institutt for teoretisk astrofysikk by Author "van Engelen, Alexander"

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  • Foreground separation and constraints on primordial gravitational waves with the PICO space mission 
    Aurvik, Ragnhild; Remazeilles, Mathieu; Belkner, Sebastian; Carron, Julien; Delabrouille, Jacques; Eriksen, Hans Kristian Kamfjord; Flauger, Raphael; Fuskeland, Unni; Galloway, Mathew; Górski, Krzysztof M.; Hanany, Shaul; Hensley, Brandon S.; Hill, J. Colin; Lawrence, Charles R.; Pryke, Clement; van Engelen, Alexander; Wehus, Ingunn Kathrine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio r, a parameter that quantifies the amplitude of inflationary gravity waves. We carry out map-based component separation ...
  • The Atacama Cosmology Telescope: Millimeter Observations of a Population of Asteroids or: ACTeroids 
    Orlowski-Scherer, John; Venterea, Ricco C.; Battaglia, Nicholas; Næss, Sigurd Kirkevold; Bhandarkar, Tanay; Biermann, Emily; Calabrese, Erminia; Devlin, Mark; Dunkley, Jo; Hervías-Caimapo, Carlos; Gallardo, Patricio A.; Hilton, Matt; Hincks, Adam D.; Knowles, Kenda; Li, Yaqiong; McMahon, Jeffrey J; Niemack, Michael D.; Page, Lyman A.; Partridge, Bruce; Salatino, Maria; Sievers, Jonathan; Sifón, Cristóbal; Staggs, Suzanne; van Engelen, Alexander; Vargas, Cristian; Vavagiakis, Eve M.; Wollack, Edward J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Abstract We present fluxes and light curves for a population of asteroids at millimeter wavelengths, detected by the Atacama Cosmology Telescope (ACT) over 18,000 deg 2 of the sky using data from 2017 to 2021. ...