Now showing items 1098-1117 of 1243

  • Fuskeland, Unni; Aumont, J.; Aurvik, Ragnhild; Baccigalupi, C.; Banday, A.J.; Eriksen, Hans Kristian Kamfjord; Errard, J.; Génova-Santos, R.T.; Hasebe, T.; Hubmayr, J.; Imada, H.; Krachmalnicoff, N.; Lamagna, L.; Pisano, G.; Poletti, D.; Remazeilles, M.; Thompson, K.L.; Vacher, L.; Wehus, Ingunn Kathrine; Azzoni, S.; Ballardini, M.; Barreiro, R.B.; Bartolo, N.; Basyrov, Artem; Beck, D.; Bersanelli, M.; Bortolami, M.; Brilenkov, Maksym; Calabrese, E.; Carones, A.; Casas, F.J.; Cheung, K.; Chluba, J.; Clark, S.E.; Clermont, L.; Columbro, F.; Coppolecchia, A.; D'Alessandro, G.; de Bernardis, P.; de Haan, T.; de la Hoz, E.; De Petris, M.; Della Torre, S.; Diego-Palazuelos, P.; Finelli, F.; Franceschet, C.; Galloni, G.; Galloway, Mathew; Gerbino, M.; Gervasi, M.; Ghigna, T.; Giardiello, S.; Gjerløw, Eirik; Gruppuso, A.; Hargrave, P.; Hattori, M.; Hazumi, M.; Hergt, L.T.; Herman, Daniel Christopher; Herranz, D.; Hivon, E.; Hoang, T.D.; Kohri, K.; Lattanzi, M.; Lee, A.T.; Leloup, C.; Levrier, F.; Lonappan, A.I.; Luzzi, G.; Maffei, B.; Martínez-González, E.; Masi, S.; Matarrese, S.; Matsumura, T.; Migliaccio, M.; Montier, L.; Morgante, G.; Mot, B.; Mousset, L.; Nagata, R.; Namikawa, T.; Nati, F.; Natoli, P.; Nerval, S.; Novelli, A.; Pagano, L.; Paiella, A.; Paoletti, D.; Pascual-Cisneros, G.; Patanchon, G.; Pelgrims, V.; Piacentini, F.; Piccirilli, G.; Polenta, G.; Puglisi, G.; Raffuzzi, N.; Ritacco, A.; Rubino-Martin, J.A.; Savini, G.; Scott, D.; Sekimoto, Y.; Shiraishi, M.; Signorelli, G.; Stever, S.L.; Stutzer, Nils-Ole; Sullivan, R.M.; Takakura, H.; Terenzi, L.; Thommesen, Harald; Tristram, M.; Tsuji, M.; Vielva, P.; Weller, J.; Westbrook, B.; Weymann-Despres, G.; Wollack, E.J.; Zannoni, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    LiteBIRD is a planned JAXA-led cosmic microwave background (CMB) B -mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitational waves. ...
  • Mota, David; Salzano, Vincenzo; Capozziello, S. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    We investigate whether there is any cosmological evidence for a scalar field with a mass and coupling to matter which change accordingly to the properties of the astrophysical system it “lives in,” without directly focusing ...
  • Axelsson, Magnus; Ihle, Håvard Tveit; Scodeller, Sandro; Hansen, Frode Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We test for foreground residuals in the foreground-cleaned Planck cosmic microwave background (CMB) maps outside and inside the U73 mask commonly used for cosmological analysis. The aim of this paper is to introduce a new ...
  • Joudaki, Shahab; Ferreira, Pedro G.; Lima, Nelson A.; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We provide an end-to-end exploration of a distinct modified gravitational theory in Jordan-Brans-Dicke (JBD) gravity, from an analytical and numerical description of the background expansion and linear perturbations, to ...
  • Nadathur, Seshadri; Percival, Will J.; Beutler, Florian; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
  • Lyall, Stuart; Blake, Chris; Turner, Ryan; Ruggeri, Rossana; Winther, Hans Arnold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The theoretical basis of dark energy remains unknown and could signify a need to modify the laws of gravity on cosmological scales. In this study, we investigate how the clustering and motions of galaxies can be used as ...
  • Llinares, Claudio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The dynamics of globular clusters has been studied in great detail in the context of general relativity as well as with modifications of gravity that strongly depart from the standard paradigm such as Modified Newtonian ...
  • Jønvik, Sara Clausen (Master thesis / Masteroppgave, 2017)
    We perform an investigation of quadru- and octopolar asymmetry in the CMB data by expanding the on the study of alignment and angular clustering of the dipole components of the CMB power distribution across multipoles l = ...
  • Murabito, Mariarita; Ermolli, I.; Giorgi, F.; Stangalini, Marco; Guglielmino, S. L.; Jafarzadeh, Shahin; Socas-Navarro, Hector; Romano, Paolo; Zuccarello, Francesca (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Abstract Sunspots are the most prominent feature of the solar magnetism in the photosphere. Although they have been widely investigated in the past, their structure remains poorly understood. Indeed, due to limitations in ...
  • Córdova Rosado, Rodrigo; Hensley, Brandon S.; Clark, Susan E.; Duivenvoorden, Adriaan J.; Atkins, Zachary; Battistelli, Elia Stefano; Choi, Steve K.; Dunkley, Jo; Hervías-Caimapo, Carlos; Li, Zack; Louis, Thibaut; Næss, Sigurd Kirkevold; Page, Lyman A.; Partridge, Bruce; Sifón, Cristóbal; Staggs, Suzanne T.; Vargas, Cristian; Wollack, Edward J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    We present a cross-correlation analysis between 1´resolution total intensity and polarization observations from the Atacama Cosmology Telescope (ACT) at 150 and 220 GHz and 15'' mid-infrared photometry from the Wide-field ...
  • Atkins, Zachary; Duivenvoorden, Adriaan J.; Coulton, William R.; Qu, Frank J.; Aiola, Simone; Calabrese, Erminia; Chesmore, Grace E.; Choi, Steve K.; Devlin, Mark J.; Dunkley, Jo; Hervías-Caimapo, Carlos; Guan, Yilun; La Posta, Adrien; Li, Zack; Louis, Thibaut; Madhavacheril, Mathew S.; Moodley, Kavilan; Næss, Sigurd Kirkevold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract The increasing statistical power of cosmic microwave background (CMB) datasets requires a commensurate effort in understanding their noise properties. The noise in maps from ground-based instruments is ...
  • Li, Yaqiong; Biermann, Emily; Næss, Sigurd Kirkevold; Aiola, Simone; An, Rui; Battaglia, Nicholas; Bhandarkar, Tanay; Calabrese, Erminia; Choi, Steve K.; Crowley, Kevin T.; Devlin, Mark; Duell, Cody J.; Duff, Shannon M.; Dunkley, Jo; Dünner, Rolando; Gallardo, Patricio A.; Guan, Yilun; Hervías-Caimapo, Carlos; Hincks, Adam D.; Hubmayr, Johannes; Huffenberger, Kevin M.; Hughes, John P.; Kosowsky, Arthur; Louis, Thibaut; Mallaby-Kay, Maya; McMahon, Jeff; Nati, Federico; Niemack, Michael D.; Orlowski-Scherer, John; Page, Lyman; Salatino, Maria; Sifón, Cristóbal; Staggs, Suzanne T.; Vargas, Cristian; Vavagiakis, Eve M.; Wang, Yuhan; Wollack, Edward J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract We conduct a systematic search for transients in 3 yr of data (2017–2019) from the Atacama Cosmology Telescope (ACT). ACT covers 40% of the sky at three bands spanning from 77–277 GHz. Analysis of 3 day ...
  • Klaassen, Pamela D.; Mroczkowski, Tony; Cicone, Claudia; Hatziminaoglou, Evanthia; Sartori, Sabrina; De Breuck, Carlos; Bryan, Sean; Dicker, Simon R.; Duran, Carlos; Groppi, Chris; Kärcher, Hans; Kawabe, Ryohei; Kohno, Kotaro; Geach, James (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The coldest and densest structures of gas and dust in the Universe have unique spectral signatures across the (sub-)millimetre bands (υ ≈30 - 950 GHz). The current generation of single dish facilities has given a glimpse ...
  • Ramasawmy, Joanna; Klaassen, Pamela D.; Cicone, Claudia; Mroczkowski, Tony; Chen, Chian-Chou; Cornish, Thomas; da Cunha, Elisabete; Hatziminaoglou, Evanthia; Johnstone, Doug; Liu, Daizhong; Perrott, Yvette; Schimek, Alice; Stanke, Thomas; Wedemeyer, Sven (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The Atacama Large Aperture Submillimeter Telescope (AtLAST) is a concept for a 50m class single-dish telescope that will provide high sensitivity, fast mapping of the (sub-)millimeter sky. Expected to be powered by renewable ...
  • Kowalski, Adam F.; Allred, Joel C.; Carlsson, Mats; Kerr, Graham S.; Tremblay, Pier-Emmanuel; Namekata, Kosuke; Kuridze, David; Uitenbroek, Han (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Redshifted components of chromospheric emission lines in the hard X-ray impulsive phase of solar flares have recently been studied through their 30 s evolution with the high resolution of the Interface Region Imaging ...
  • Mina, Mattia; Shen, Sijing; Keller, Benjamin Walter; Mayer, Lucio; Madau, Piero; Wadsley, James (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We present results from a high-resolution, cosmological, ΛCDM simulation of a group of field dwarf galaxies with the “superbubble” model for clustered SN feedback, accounting for thermal conduction and cold gas evaporation. ...
  • Bose, Souvik; Nóbrega Siverio, Daniel Elias; De Pontieu, Bart Walter; Rouppe van der Voort, Luc (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Coronal bright points (CBPs) are sets of small-scale coronal loops, connecting opposite magnetic polarities, primarily characterized by their enhanced extreme-ultraviolet (EUV) and X-ray emission. Being ...
  • Madjarska, Maria S.; Chae, Jongchul; Moreno-Insertis, Fernando; Hou, Zhenyong; Nóbrega Siverio, Daniel Elias; Kwak, Hannah; Galsgaard, Klaus; Cho, Kyuhyoun (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Context. We investigate the chromospheric counterpart of small-scale coronal loops constituting a coronal bright point (CBP) and its response to a photospheric magnetic-flux increase accompanied by co-temporal CBP heating. ...
  • Chung, Andrew S.; Dijkstra, Mark; Ciardi, Benedetta; Kakiichi, Koki; Naab, Thorsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Galactic outflows are critical to our understanding of galaxy formation and evolution. However, the details of the underlying feedback process remain unclear. We compare Ly α observations of the circumgalactic medium (CGM) ...
  • Garcia Lambas, Diego; Hansen, Frode Kristian; Toscano, Facundo; Luparello, Heliana E.; Boero, Ezequiel F. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Context. The non-Gaussian Cold Spot surrounded by its hot ring is one of the most striking features of the cosmic microwave background (CMB) and has generated significant attention in the literature. It has been speculated ...