Browsing Institutt for teoretisk astrofysikk by Title

Now showing items 641-660 of 1279

  • 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 ...
  • Low-level Data Analysis, Calibration, and Ground Modeling with COMAP 
    Lunde, Jonas Gahr Sturtzel (Master thesis / Masteroppgave, 2021)
    The CO Mapping Array Project (COMAP) is a line intensity mapping experiment currently in its Pathfinder phase, where it is targeting CO emissions at redshifts z=2.4-3.4. A main goal of the Pathfinder phase is to build a ...
  • Lyman α-emitting galaxies in the epoch of reionization 
    Laursen, Peter; Sommer-Larsen, Jesper; Milvang-Jensen, Bo; Fynbo, Johan P. U.; Razoumov, Alexei O. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    With a total integration time of 168 h and a narrowband filter tuned to Lyα emission from z = 8.8, the UltraVISTA survey has set out to find some of the most distant galaxies, on the verge of the epoch of reionization. ...
  • Lyman-Werner escape fractions from the first galaxies 
    Schauer, Anna T. P.; Agarwal, B.; Glover, Simon C. O.; Klessen, Ralf S.; Latif, Muhammad A.; Mas Ribas, Lluis; Rydberg, Claes-Erik; Whalen, Daniel J.; Zackrisson, Erik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Direct collapse black holes forming in pristine, atomically cooling haloes at z ≈ 10–20 may act as the seeds of supermassive black holes (BHs) at high redshifts. In order to create a massive BH seed, the host halo needs ...
  • Lyα Profile, Dust, and Prediction of Lyα Escape Fraction in Green Pea Galaxies 
    Yang, Huan; Malhotra, Sangeeta; Gronke, Max Balthasar; Rhoads, James E.; Leitherer, Claus; Wofford, Aida; Jiang, Tianxing; Dijkstra, Mark; Tilvi, V.; Wang, Junxian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017. The American Astronomical Society. All rights reserved.
  • The Lyα Reference Sample. VIII. Characterizing Lyα Scattering in Nearby Galaxies 
    Bridge, Joanna S.; Hayes, Matthew; Melinder, Jens; Östlin, Göran; Gronwall, Caryl; Ciardullo, Robin; Atek, Hakim; Cannon, John M.; Gronke, Max Balthasar; Guaita, Lucia; Hagen, Alex; Herenz, Edmund Christian; Kunth, Daniel; Laursen, Peter; Mas-Hesse, J. Miguel; Pardy, Stephen A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017. The American Astronomical Society. All rights reserved.
  • The Lyα-LyC connection: evidence for an enhanced contribution of UV-faint galaxies to cosmic reionization 
    Dijkstra, Mark; Gronke, Max Balthasar; Venkatesan, Aparna (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    The escape of ionizing Lyman continuum (LyC) photons requires the existence of low-NH I sightlines, which also promote escape of Lyα. We use a suite of 2500 Lyα Monte-Carlo radiative transfer simulations through models of ...