Browsing Institutt for teoretisk astrofysikk by Title

Now showing items 635-654 of 1278

  • Large format imaging spectrograph for the Large Submillimeter Telescope (LST) 
    Kohno, Kotaro; Kawabe, Ryohei; Tamura, Yoichi; Endo, Akira; Baselmans, Jochem J. A.; Karatsu, Kenichi; Inoue, Akio K.; Moriwaki, Kana; Hayatsu, Natsuki H.; Yoshida, Naoki; Yoshimura, Yuki; Hatsukade, Bunyo; Umehata, Hideki; Oshima, Tai; Takekoshi, Tatsuya; Taniguchi, Akio; Klaassen, Pamela D.; Mroczkowski, Tony; Cicone, Claudia; Bertoldi, Frank; Dannerbauer, Helmut; Tosaki, Tomoka (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    We present a conceptual study of a large format imaging spectrograph for next-generation large (50-m class) single-dish telescopes, i.e., the Large Submillimeter Telescope (LST) and Atacama Large Aperture Submillimeter ...
  • Large scale coherent magnetohydrodynamic oscillations in a sunspot 
    Stangalini, Marco; Verth, G.; Fedun, V.; Aldhafeeri, A.A.; Jess, D.B.; Jafarzadeh, Shahin; Keys, P.H.; Fleck, B.; Terradas, J.; Murabito, M.; Ermolli, I.; Soler, R.; Giorgi, F.; MacBride, C.D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract Although theoretically predicted, the simultaneous excitation of several resonant modes in sunspots has not been observed. Like any harmonic oscillator, a solar magnetic flux tube can support a variety of resonances, ...
  • Large-scale structure with massive neutrinos and modified gravity: A simulation-based approach 
    Mauland-Hus, Renate (Doctoral thesis / Doktoravhandling, 2023)
    Massive neutrinos and alternative theories of gravity are two seemingly different aspects of cosmological study. On one hand, we have actual particles known to exist, and on the other, a proposed change to the description ...
  • Late Kinetic Decoupling of Dark Matter 
    Ihle, Håvard Tveit (Master thesis / Masteroppgave, 2016)
    If dark matter, after it has become non-relativistic, scatters elastically with a relativistic heat bath particle, then the resulting pressure leads to acoustic oscillations that suppress the growth of overdensities in the ...
  • The length of the low-redshift standard ruler 
    Verde, Licia; Bernal, José Luis; Heavens, Alan F.; Jimenez, Raul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
  • Lens Model and Source Reconstruction Reveal the Morphology and Star Formation Distribution in the Cool Spiral LIRG SGAS J143845.1+145407 
    Dunham, Samuel J.; Sharon, Keren; Florian, Michael K.; Rigby, Jane R.; Gladders, Michael D.; Bayliss, Matthew B.; Dahle, Håkon; Johnson, Traci L.; Murray, Katherine; Whitaker, Katherine E.; Wuyts, Eva (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We present Hubble Space Telescope (HST) imaging and grism spectroscopy of a strongly lensed LIRG at z = 0.816, SGAS 143845.1+145407, and use the magnification boost of gravitational lensing to study the distribution of ...
  • Lens model and time delay predictions for the sextuply lensed quasar SDSS J2222+2745 
    Sharon, Keren; Bayliss, Matthew B.; Dahle, Håkon; Florian, Michael K.; Gladders, Michael D.; Johnson, Traci L.; Paterno-Mahler, Rachel; Rigby, Jane R.; Whitaker, Katherine E.; Wuyts, Eva (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    SDSS J2222+2745 is a galaxy cluster at z = 0.49, strongly lensing a quasar at z = 2.805 into six widely separated images. In recent Hubble Space Telescope imaging of the field, we identify additional multiply lensed galaxies ...
  • Lensing without borders – I. A blind comparison of the amplitude of galaxy–galaxy lensing between independent imaging surveys 
    Leauthaud, Alexie; Amon, Alexandra; Singh, S.; Gruen, Daniel; Lange, Johannes Ulf; Huang, Song; Robertson, N. C.; Varga, Tamas Norbert; Luo, Yifei; Heymans, Catherine; Hildebrandt, Helmut; Blake, C.; Aguena, Michel; Allam, Sahar; Andrade-Oliveira, F.; Annis, James; Bertin, Emmanuel; Bhargava, S.; Blazek, J.; Bridle, Sarah L.; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Castander, F. J.; Cawthon, Ross; Choi, A.; Costanzi, Matteo; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; Davis, Christopher; De Vicente, Juan; DeRose, J.; Diehl, Herman T.; Dietrich, Jörg P.; Doel, P.; Eckert, K.; Everett, S.; Evrard, August E.; Ferrero, Ismael; Flaugher, B.; Fosalba, Pablo; García-Bellido, Juan; Gatti, M.; Gaztañaga, Enrique; Gruendl, Robert A.; Gschwend, J.; Hartley, William G.; Hollowood, Devon L.; Honscheid, Klaus; Jain, Bhuvnesh; James, D. J.; Jarvis, M.; Joachimi, Benjamin; Kannawadi, A.; Kim, Alex G.; Krause, E.; Kuehn, Kyler; Kuijken, Konrad; Kuropatkin, Nikolay; Lima, M.; MacCrann, Niall; Maia, Marcio A. G.; Makler, Martin; March, Marisa; Marshall, Jennifer L.; Melchior, Peter; Menanteau, Felipe; Miquel, Ramon; Miyatake, Hironao; Mohr, Joseph J.; Moraes, B.; More, S.; Surhud, M.; Morgan, R.; Myles, Justin; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas Malagón, Andrés A.; Prat, Judit; Rau, Markus Michael; Rhodes, Jason D.; Rodriguez-Monroy, Martin; Roodman, A.; Ross, Ashley J.; Samuroff, Simon; Sánchez, Carles; Sanchez, E.; Scarpine, V.; Schlegel, David J.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, Ignacio; Sifón, Cristóbal; Smith, Mathew; Speagle, J. S.; Suchyta, Eric; Tarlé, Gregory; Thomas, Daniel; Tinker, Jeremy; To, Chun-Hao; Troxel, Michael A.; Van Waerbeke, L.; Vielzeuf, P.; Wright, Angus H. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    ABSTRACT Lensing without borders is a cross-survey collaboration created to assess the consistency of galaxy–galaxy lensing signals (ΔΣ) across different data sets and to carry out end-to-end tests of systematic ...
  • Lessons learned from the two largest Galaxy morphological classification catalogues built by convolutional neural networks 
    Cheng, Ting-Yun; Domínguez Sánchez, Helena; Vega-Ferrero, Jesús; Conselice, Christopher J.; Siudek, M.; Aragón-Salamanca, Alfonso; Bernardi, M.; Cooke, Ryan; Ferreira, l.; Huertas-Company, M.; Krywult, J.; Palmese, Antonella; Pieres, Adriano; Plazas Malagón, Andrés A.; Carnero Rosell, Aurelio; Gruen, D.; Thomas, Daniel; Bacon, D.; Brooks, D.; James, David J.; Hollowood, Devon L.; Friedel, D.; Suchyta, Eric; Sanchez, E.; Menanteau, Felipe; Paz-Chinchón, Francisco; Gutierrez, G.; Tarlé, Gregory; Sevilla-Noarbe, Ignacio; Ferrero, Ismael; Annis, J.; Frieman, Josh; García-Bellido, Juan; Mena-Fernández, J.; Honscheid, Klaus; Kuehn, K.; da Costa, Luiz N.; Gatti, M.; Raveri, M.; Pereira, Maria Elidaiana da Silva; Rodríguez-Monroy, M.; Smith, Mathew; Carrasco Kind, Matias; Aguena, Michel; Swanson, Molly E. C.; Weaverdyck, Noah; Doel, P.; Miquel, R.; Ogando, Ricardo L. C.; Gruendl, Robert A.; Allam, Sahar; Hinton, Samuel R.; Dodelson, Scott; Bocquet, S.; Desai, S.; Everett, S.; Scarpine, V. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    ABSTRACT We compare the two largest galaxy morphology catalogues, which separate early- and late-type galaxies at intermediate redshift. The two catalogues were built by applying supervised deep learning ...
  • The Light of the TARDIS 
    Hauge, Lars Christian (Master thesis / Masteroppgave, 2015)
    In 2013 a new metric called TARDIS was introduced. This metric was published by Tippet and Tsang, and described a time machine. This thesis uses numerical methods to explore properties of this new metric. We start by ...
  • Line formation in the magnetized solar chromosphere 
    Moe, Thore Espedal (Doctoral thesis / Doktoravhandling, 2023)
    The theme of this thesis has been the use of forward modeling to study the formation of spectral lines in the solar atmosphere, with a particular focus on the chromospheric Ca II 854.2 nm line which is important for magnetic ...
  • Line formation of He I D3 and He I 10 830 Å in a small-scale reconnection event 
    Libbrecht, Tine; Bjørgen, Johan Pires; Leenaarts, Jorrit; de la Cruz Rodríguez, Jaime; Hansteen, Viggo Haraldson; Joshi, Jayant (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Context. Ellerman bombs (EBs) and UV bursts are small-scale reconnection events that occur in the region of the upper photosphere to the chromosphere. It has recently been discovered that these events can have emission ...
  • Line-Intensity Mapping with COMAP 
    Levén, Erik Alexander (Master thesis / Masteroppgave, 2019)
  • Linear Polarization Features in the Quiet-Sun Photosphere: Structure and Dynamics 
    Kianfar, S; Jafarzadeh, Shahin; Mirtorabi, MT; Riethmüller, T. L. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We present detailed characteristics of linear polarization features (LPFs) in the quiet-Sun photosphere from high-resolution observations obtained with SUNRISE/IMaX. We explore differently treated data with various noise ...
  • Linking the Sun to the Heliosphere Using Composition Data and Modelling: A Test Case with a Coronal Jet 
    Parenti, Susanna; Chifu, Iulia; Del Zanna, Giulio; Edmondson, Justin; Giunta, Alessandra; Hansteen, Viggo Haraldson; Higginson, Aleida; Laming, J. Martin; Lepri, Susan T.; Lynch, Benjamin J.; Rivera, Yeimy J.; von Steiger, Rudolf; Wiegelmann, Thomas; Wimmer-Schweingruber, Robert F.; Zambrana Prado, Natalia; Pelouze, Gabriel (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
    Our understanding of the formation and evolution of the corona and the heliosphere is linked to our capability of properly interpret the data from remote sensing and in-situ observations. In this respect, being able to ...
  • Listening to the sound of dark sector interactions with gravitational wave standard sirens 
    Yang, Weiqiang; Vagnozzi, Sunny; Di Valentino, Eleonora; Nunes, Rafael C.; Pan, Supriya; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    We consider two stable Interacting Dark Matter-Dark Energy models and confront them against current Cosmic Microwave Background data from the Planck satellite. We then generate luminosity distance measurements from Script ...
  • LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization 
    Hazumi, Masashi; Ade, Peter A.R.; Adler, A.; Allys, E.; Arnold, K; Auguste, D.; Aumont, J.; Aurlien, Ragnhild; Austermann, J; Baccigalupi, Carlo; Banday, Anthony J.; Banerji, Ranajoy; Barreiro, R. B.; Basak, S.; Beall, J.; Beck, D.; Beckman, S; Bermejo, J.; de Bernardis, P.; Bersanelli, Marco; Bonis, J; Borrill, J.; Boulanger, F.; Bounissou, S.; Brilenkov, Maksym; Brown, M.; Bucher, Martin; Calabrese, E.; Campeti, P.; Carones, A.; Casas, F. J.; Challinor, A.; Chan, V.; Cheung, K.; Chinone, Y.; Cliche, J.-F.; Colombo, Loris; Columbro, F; Cubas, J.; Cukierman, A; Curtis, D; D'Alessandro, G; Dachlythra, N.; De Petris, M; Dickinson, C.; Diego-Palazuelos, P.; Dobbs, M; Dotani, T; Duband, L.; Duff, S.; Duval, J. M.; Ebisawa, K; Elleflot, T; Eriksen, Hans Kristian Kamfjord; Errard, J; Essinger-Hileman, T.; Finelli, Fabio; Flauger, R; Franceschet, C; Fuskeland, Unni; Galloway, Mathew; Ganga, K.; Gao, J. R.; Génova-Santos, R. T.; Gerbino, M.; Gervasi, M.; Ghigna, T; Gjerløw, Eirik; Gradziel, M. L.; Grain, J.; Grupp, F.; Gruppuso, A.; Gudmundsson, Jon E.; de Haan, T; Halverson, Nils W.; Hargrave, P; Hasebe, T; Hasegawa, M.; Hattori, M.; Henrot-Versillé, S.; Herman, Daniel Christopher; Herranz, D.; Hill, C. A.; Hilton, G.; Hirota, Y; Hivon, E.; Hlozek, R. A.; Hoshino, Y.; de la Hoz, E.; Hubmayr, J.; Ichiki, K; Iida, T; Imada, H; Ishimura, K.; Ishino, H; Jaehnig, G; Kaga, T.; Kashima, S; Katayama, N; Kato, A.; Kawasaki, T; Keskitalo, R.; Kisner, T; Kobayashi, Y; Kogiso, N; Kogut, A.; Kohri, K; Komatsu, E.; Komatsu, K; Konishi, K; Krachmalnicoff, N.; Kreykenbohm, I; Kuo, C. L.; Kushino, A; Lamagna, L; Lanen, J. V.; Lattanzi, M; Lee, A. T.; Leloup, C.; Levrier, F.; Linder, E; Louis, T.; Luzzi, G.; Maciaszek, T; Maffei, B; Maino, D.; Maki, M; Mandelli, S.; Martínez-González, E.; Masi, S; Matsumura, T; Mennella, A; Migliaccio, M.; Minami, Y; Mitsuda, K; Montgomery, J.; Montier, L; Morgante, G; Mot, B; Murata, Y.; Murphy, J. A.; Nagai, M.; Nagano, Y.; Nagasaki, T; Nagata, R; Nakamura, S; Namikawa, T; Natoli, P; Nerval, S.; Nishibori, T; Nishino, H.; Noviello, F; O'Sullivan, C.; Ogawa, H; Ogawa, H.; Oguri, S; Ohsaki, H; Ohta, I. S.; Okada, N; Okada, N.; Pagano, L.; Paiella, A; Paoletti, D.; Patanchon, G.; Peloton, J.; Piacentini, F; Pisano, G; Polenta, G.; Poletti, D; Prouvé, T.; Puglisi, G; Rambaud, D; Raum, C; Realini, S; Reinecke, M.; Remazeilles, M.; Ritacco, A.; Roudil, G.; Rubiño-Martín, J. A.; Russel, M; Sakurai, H.; Sakurai, Y; Sandri, M; Sasaki, M.; Savini, G; Scott, Douglas; Seibert, J.; Sekimoto, Y; Sherwin, B; Shinozaki, K; Shiraishi, M; Shirron, P.; Signorelli, G; Smecher, G.; Stever, S.; Stompor, R.; Sugai, H; Sugiyama, S.; Suzuki, A; Suzuki, J; Svalheim, Trygve Leithe; Switzer, E.; Takaku, R; Takakura, H.; Takakura, S; Takase, Y; Takeda, Y.; Tartari, A; Taylor, E.; Terao, Y; Thommesen, Harald; Thompson, K. L.; Thorne, B; Toda, T; Tomasi, M.; Tominaga, M; Trappe, N; Tristram, M.; Tsuji, M; Tsujimoto, M; Tucker, C.; Ullom, J.; Vermeulen, G; Vielva, P.; Villa, F.; Vissers, M.; Vittorio, N.; Wehus, Ingunn Kathrine; Weller, Jochen; Westbrook, B; Wilms, J; Winter, B; Wollack, E. J.; Yamasaki, N. Y.; Yoshida, T.; Yumoto, J; Zannoni, M; Zonca, A. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. JAXA selected LiteBIRD ...
  • LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection 
    Hazumi, M.; Ade, Peter A.R.; Akiba, Y; Alonso, D; Arnold, K; Aumont, J.; Baccigalupi, Carlo; Barron, D; Basak, S.; Beckman, S; Borrill, J.; Boulanger, F.; Bucher, Martin; Calabrese, E.; Chinone, Y.; Cho, S; Cukierman, A; Curtis, D. W.; de Haan, T; Dobbs, M; Dominjon, A; Dotani, T; Duband, L.; Ducout, A.; Dunkley, J.; Duval, J. M.; Elleflot, T; Eriksen, Hans Kristian Kamfjord; Errard, J; Fischer, J.; Fujino, T; Funaki, T; Fuskeland, Unni; Ganga, K.; Goeckner-Wald, N; Grain, J.; Halverson, Nils W.; Hamada, T; Hasebe, T; Hasegawa, M.; Hattori, K; Hattori, M.; Hayes, L.; Hidehira, N; Hill, C. A.; Hilton, G.; Hubmayr, J.; Ichiki, K; Iida, T; Imada, H; Inoue, M; Inoue, Y.; Irwin, K. D.; Ishino, H; Jeong, O; Kanai, H; Kaneko, D; Kashima, S; Katayama, N; Kawasaki, T; Kernasovskiy, S. A.; Keskitalo, R.; Kibayashi, A; Kida, Y; Kimura, K; Kisner, T; Kohri, K; Komatsu, E.; Komatsu, K; Kuo, C. L.; Kurinsky, N. A.; Kusaka, A.; Lazarian, A; Lee, A. T.; Li, D; Linder, E; Maffei, B; Mangilli, A; Maki, M; Matsumura, T; Matsuura, S; Meilhan, D; Mima, S; Minami, Y; Mitsuda, K; Montier, L; Nagai, M.; Nagasaki, T; Nagata, R; Nakajima, M; Nakamura, S; Namikawa, T; Naruse, M; Nishino, H.; Nitta, T; Noguchi, T; Ogawa, H; Oguri, S; Okada, N; Okamoto, A; Okamura, T; Otani, C; Patanchon, G.; Pisano, G; Rebeiz, G; Remazeilles, M.; Richards, P. L.; Sakai, S.; Sakurai, Y; Sato, Y; Sato, N.; Sawada, M; Segawa, Y; Sekimoto, Y; Seljak, U.; Sherwin, B. D.; Shimizu, T.; Shinozaki, K; Stompor, R.; Sugai, H; Sugita, H.; Suzuki, A; Suzuki, J; Tajima, O.; Takada, S; Takaku, R; Takakura, S; Takatori, S; Tanabe, D; Taylor, E.; Thompson, K. L.; Thorne, B; Tomaru, T; Tomida, T; Tomita, N.; Tristram, M.; Tucker, C.; Turin, P; Tsujimoto, M; Uozumi, S; Utsunomiya, S; Uzawa, Y; Vansyngel, F.; Wehus, Ingunn Kathrine; Westbrook, B; Willer, M; Whitehorn, N; Yamada, Y.; Yamamoto, R; Yamasaki, N; Yamashita, T.; Yoshida, M. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
  • Local observables in a landscape of infrared gauge modes 
    Thorsrud, Mikjel; Mota, David; Urban, Federico (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Cosmological local observables are at best statistically determined by the fundamental theory describing inflation. When the scalar inflaton is coupled uniformly to a collection of subdominant massless gauge vectors, ...
  • Long-timescale stability in CMB observations at multiple frequencies using front-end polarization modulation 
    Cleary, Joseph; Datta, Rahul; Appel, John W.; Bennett, Charles L.; Chuss, David T.; Couto, Jullianna Denes; Dahal, Sumit; Espinoza, Francisco; Essinger-Hileman, Thomas; Harrington, Kathleen; Iuliano, Jeffrey; Li, Yunyang; Marriage, Tobias A.; Núñez, Carolina; Petroff, Matthew A.; Reeves, Rodrigo; Shi, Rui; Watts, Duncan; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The Cosmology Large Angular Scale Surveyor (CLASS) is a telescope array observing the Cosmic Microwave Background (CMB) at frequency bands centered near 40, 90, 150, and 220 GHz. CLASS measures the CMB polarization on the ...