Now showing items 1-20 of 935

  • Tremblay, G. R.; Gladders, M. D.; Baum, S. A.; O'Dea, C. P.; Bayliss, M. B.; Cooke, K. C.; Dahle, Håkon; Davis, T. A.; Florian, M.; Rigby, J. R.; Sharon, K.; Soto, E; Wuyts, E (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    New Hubble Space Telescope ultraviolet and optical imaging of the strong-lensing galaxy cluster SDSS J1531+3414 (z = 0.335) reveals two centrally dominant elliptical galaxies participating in an ongoing major merger. The ...
  • Udnæs, Magne Elias Roland (Master thesis / Masteroppgave, 2022)
    Three-dimensional radiative transfer calculations involve extensive amounts of computation. These calculations are done on three-dimensional model atmospheres where the MHD equations are solved. Typically, model atmospheres ...
  • Wang, Deng; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
  • Ade, Peter A.R.; Amiri, M.; Benton, S.J.; Bergman, A.S.; Bihary, R.; Bock, J.J.; Bond, J.R.; Bonetti, J.A.; Bryan, S.A.; Chiang, H.C.; Contaldi, C.R.; Doré, O.; Duivenvoorden, A.J.; Eriksen, Hans Kristian Kamfjord; Farhang, M.; Filippini, J.P.; Fraisse, A.A.; Freese, K.; Galloway, Mathew; Gambrel, A.E.; Gandilo, N.N.; Ganga, K.; Gualtieri, R.; Gudmundsson, J.E.; Halpern, M.; Hartley, J.; Hasselfield, M.; Hilton, G.; Holmes, W.; Hristov, V.V.; Huang, Z.; Irwin, K.D.; Jones, W.C.; Karakci, Ata; Kuo, C.L.; Kermish, Z.D.; Leung, J.S.-Y.; Li, S.; Mak, D.S.Y.; Mason, P.V.; Megerian, K.; Moncelsi, L.; Morford, T.A.; Nagy, J.M.; Netterfield, C.B.; Nolta, M.; O'Brient, R.; Osherson, B.; Padilla, I.L.; Racine, Benjamin; Rahlin, A.S.; Reintsema, C.; Ruhl, J.E.; Runyan, M.C.; Ruud, Tone Melvær; Shariff, J.A.; Shaw, E.C.; Shiu, C.; Soler, J.D.; Song, X.; Trangsrud, A.; Tucker, C.; Tucker, R.S.; Turner, A.D.; van der List, J.F.; Weber, A.C.; Wehus, Ingunn Kathrine; Wen, S.; Wiebe, D.V.; Young, E.Y. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present the first linear polarization measurements from the 2015 long-duration balloon flight of Spider, which is an experiment that is designed to map the polarization of the cosmic microwave background (CMB) on degree ...
  • Ade, Peter A. R.; Ahmed, Z.; Amiri, M.; Anderson, Atholl J.; Austermann, Jason E.; Avva, J. S.; Barkats, D.; Basu Thakur, R.; Beall, James A.; Bender, A. N.; Benson, Bradford A.; Bianchini, Federico; Bischoff, C. A.; Bleem, Lindsey E.; Bock, James J.; Boenish, H.; Bullock, E.; Buza, V.; Carlstrom, John E.; Chang, C. L.; Cheshire IV, J. R.; Chiang, Herman Cynthia; Chou, T.-L.; Citron, R.; Connors, J.; Corbett Moran, Christine; Cornelison, J.; Crawford, Thomas M.; Crites, Abigail T.; Crumrine, M.; Cukierman, A.; de Haan, Tijmen; Dierickx, M.; Dobbs, Matthew Adam; Duband, L.; Everett, Wendeline B.; Fatigoni, S.; Filippini, Jeffrey P.; Fliescher, S.; Gallicchio, J.; George, Elizabeth M.; Germaine, T. St.; Goeckner-Wald, N.; Goldfinger, D. C.; Grayson, Jim; Gupta, N.; Hall, G.; Halpern, M.; Halverson, Nils W.; Harrison, S.; Henderson, S.; Henning, Jason W.; Hildebrandt, S. R.; Hilton, Gene C.; Holder, Gilbert P.; Holzapfel, William Laird; Hrubes, J. Dana; Huang, N.; Hubmayr, Johannes; Hui, H.; Irwin, Kent D.; Kang, J.; Karkare, K. S.; Karpel, E.; Kefeli, S.; Kernasovskiy, S. A.; Knox, Lloyd E.; Kovac, J. M.; Kuo, C. L.; Lau, K.; Lee, A. T.; Leitch, E. M.; Li, D.; Lowitz, A.; Manzotti, Alessandro; McMahon, J. J.; Megerian, Krikor G.; Meyer, S. S.; Millea, Marius; Mocanu, Laura-Monica (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We present a constraint on the tensor-to-scalar ratio, r, derived from measurements of cosmic microwave background (CMB) polarization B-modes with “delensing,” whereby the uncertainty on r contributed by the sample variance ...
  • Johnston, Craig D.; Hood, Alan W.; De Moortel, Ineke; Pagano, Paolo; Howson, Thomas A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We have demonstrated that the transition region adaptive conduction (TRAC) method permits fast and accurate numerical solutions of the field-aligned hydrodynamic equations, successfully removing the influence of numerical ...
  • Mucesh, Sunil; Hartley, W. G.; Palmese, Antonella; Lahav, Ofer; Whiteway, L.; Bluck, A. F. L.; Alarcon, A.; Amon, A.; Bechtol, K.; Bernstein, G. M.; Carnero Rosell, A.; Carrasco Kind, Matias; Choi, A.; Eckert, K.; Everett, S.; Gruen, Daniel; Gruendl, Robert A.; Harrison, Ian; Huff, Eric M.; Kuropatkin, N.; Sevilla-Noarbe, I.; Sheldon, E.; Yanny, B.; Aguena, M.; Allam, S.; Bacon, D.; Bertin, Emmanuel; Bhargava, S.; Brooks, D.; Carretero, J.; Castander, F. J.; Conselice, C.; Costanzi, M.; Crocce, M.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; De Vicente, J.; Desai, S.; Diehl, H. T.; Drlica-Wagner, A.; Evrard, August E.; Ferrero, Ismael; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, Juan; Gaztanaga, E.; Gerdes, David W.; Gschwend, J.; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; James, D. J.; Kuehn, K.; Lima, M.; Lin, H.; Maia, M. A. G.; Melchior, P.; Menanteau, F.; Miquel, R.; Morgan, R.; Paz-Chinchón, Francisco; Plazas, Andrés A.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Smith, Mathew; Suchyta, E.; Tarle, G.; Thomas, D.; To, Chun-Hao; Varga, T. N.; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    ABSTRACT We demonstrate that highly accurate joint redshift–stellar mass probability distribution functions (PDFs) can be obtained using the Random Forest (RF) machine learning (ML) algorithm, even with few ...
  • Armstrong, John A.; Fletcher, Lyndsay (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    ABSTRACT Current post-processing techniques for the correction of atmospheric seeing in solar observations – such as Speckle interferometry and Phase Diversity methods – have limitations when it comes to their ...
  • Thommesen, Harald; Andersen, Kristian Joten; Aurlien, Ragnhild; Banerji, Ranajoy; Brilenkov, Maksym; Fuskeland, Unni; Eriksen, Hans Kristian Kamfjord; Galloway, Mathew; Mocanu, Laura-Monica; Svalheim, Trygve Leithe; Wehus, Ingunn Kathrine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We review and compare two different cosmic microwave background (CMB) dipole estimators discussed in the literature and assess their performances through Monte Carlo simulations. The first method amounts to simple template ...
  • Drews, Ainar; Rouppe van der Voort, Luc (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Context. Penumbral microjets (PMJs) are short-lived, jet-like objects found in the penumbra of sunspots. They were first discovered in chromospheric lines and have later also been shown to exhibit signals in transition ...
  • Wissing, Robert; Hobbs, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We present a new analytical equation of state (EOS), which correctly models high pressure theory and fits well to the experimental data of ɛ-Fe, SiO2, Mg2, and the Earth. The cold part of the EOS is modeled after the Varpoly ...
  • Wissing, Robert; Hobbs, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Observed FeO/MgO ratios in the Moon and Earth are inconsistent with simulations done with a single homogeneous silicate layer. In this paper we use a newly developed equation of state to perform smoothed particle hydrodynamics ...
  • De Pontieu, Bart Walter; Polito, Vanessa; Hansteen, Viggo Haraldson; Testa, Paola; Reeves, Katharine K.; Antolin, Patrick; Nóbrega Siverio, Daniel Elias; Kowalski, Adam F.; Martinez-Sykora, Juan; Carlsson, Mats; McIntosh, Scott W.; Liu, Wei; Daw, Adrian N.; Kankelborg, Charles C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The Interface Region Imaging Spectrograph (IRIS) has been obtaining near- and far-ultraviolet images and spectra of the solar atmosphere since July 2013. IRIS is the highest resolution observatory to provide ...
  • Stangalini, Marco; Jess, David B.; Verth, Gary; Fedun, Viktor; Fleck, Bernhard; Jafarzadeh, Shahin; Keys, Peter H.; Murabito, Mariarita; Calchetti, Daniele; Aldhafeeri, Anwar A.; Berrilli, Francesco; Del Moro, Dario; Jefferies, Stuart M.; Terradas, J.; Soler, Roberto (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The umbral regions of sunspots and pores in the solar photosphere are generally dominated by 3 mHz oscillations, which are due to p -modes penetrating the magnetic region. In these locations, wave power is also significantly ...
  • Severgnini, Paola; Braito, Valentina; Cicone, Claudia; Saracco, P.; Vignali, C.; Serafinelli, Roberto; Della Ceca, R.; Dotti, M.; Cusano, F.; Paris, D.; Pruto, G.; Zaino, A.; Ballo, Lucia; Landoni, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Although thousands of galaxy mergers are known, only a handful of sub-kiloparsec-scale supermassive black hole (SMBH) pairs have been confirmed so far, leaving a huge gap between the observed and predicted numbers of such ...
  • Bernardinelli, Pedro H.; Bernstein, Gary M.; Sako, Masao; Yanny, Brian; Aguena, M.; Allam, S.; Andrade-Oliveira, F.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D.L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Conselice, C.; Costanzi, M.; da Costa, L.N.; De Vicente, J.; Desai, S.; Diehl, H.T.; Dietrich, J.P.; Doel, P.; Eckert, K.; Everett, S.; Ferrero, Ismael; Flaugher, B.; Fosalba, P.; Frieman, J.; Garciá-Bellido, J.; Gerdes, D.W.; Gruen, D.; Gruendl, R.A.; Gschwend, J.; Hinton, S.R.; Hollowood, D.L.; Honscheid, K.; James, D.J.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Maia, M.A.G.; March, M.; Menanteau, F.; Miquel, R.; Morgan, R.; Myles, J.; Ogando, R.L.C.; Palmese, A.; Paz-Chinchón, F.; Pieres, A.; Plazas Malagón, A. A.; Romer, A.K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Smith, M.; Soares-Santos, M.; Suchyta, E.; Swanson, M.E.C.; Tarle, G.; To, C.; Varga, T.N.; Walker, A.R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present a search for outer solar system objects in the 6 yr of data from the Dark Energy Survey (DES). The DES covered a contiguous 5000 deg2 of the southern sky with ≈80,000 3 deg2 exposures in the grizY filters between ...
  • Leung, Jason S.-Y.; Hartley, J.; Nagy, J.M.; Netterfield, C.B.; Shariff, J.A.; Ade, P.A.R.; Amiri, M.; Benton, S.J.; Bergman, A.S.; Bihary, R.; Bock, J.J.; Bond, J.R.; Bonetti, J.A.; Bryan, S.A.; Chiang, H.C.; Contaldi, C.R.; Doré, O.; Duivenvoorden, A.J.; Eriksen, Hans Kristian Kamfjord; Farhang, M.; Filippini, J.P.; Fraisse, A.A.; Freese, K.; Galloway, Mathew; Gambrel, A.E.; Gandilo, N.N.; Ganga, K.; Gualtieri, R.; Gudmundsson, J.E.; Halpern, M.; Hasselfield, M.; Hilton, G.; Holmes, W.; Hristov, V.V.; Huang, Z.; Irwin, K.D.; Jones, W.C.; Karakci, Ata; Kuo, C.L.; Kermish, Z.D.; Li, S.; Mak, D.S.Y.; Mason, P.V.; Megerian, K.; Moncelsi, L.; Morford, T.A.; Nolta, M.; O'Brient, R.; Osherson, B.; Padilla, I.L.; Racine, Benjamin; Rahlin, A.S.; Reintsema, C.; Ruhl, J.E.; Runyan, M.C.; Ruud, Tone Melvær; Shaw, E.C.; Shiu, C.; Soler, J.D.; Song, X.; Trangsrud, A.; Tucker, C.; Tucker, R.S.; Turner, A.D.; van der List, J.F.; Weber, A.C.; Wehus, Ingunn Kathrine; Wen, S.; Wiebe, D.V.; Young, E.Y. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Modern cosmic microwave background (CMB) analysis pipelines regularly employ complex time-domain filters, beam models, masking, and other techniques during the production of sky maps and their corresponding angular power ...
  • Patel, Ritesh; Pant, Vaibhav; Kalugodu, Chandrashekhar; Banerjee, Dipankar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Context. Coronal mass ejections (CMEs) are often observed to be accompanied by flare, current sheets, and plasmoids/plasma blobs. 2D and 3D numerical simulations and observations reported plasmoids moving upward as well ...
  • Bobra, Monica G; Mumford, Stuart J; Hewett, Russell J; Christe, Steven D; Reardon, Kevin P.; Savage, Sabrina L.; Ireland, Jack; Mendes Domingos Pereira, Tiago; Chen, Bin; Pérez-Suárez, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The SunPy Project developed a 13-question survey to understand the software and hardware usage of the solar-physics community. Of the solar-physics community, 364 members across 35 countries responded to our survey. We ...
  • Ferrero, Ismael; Navarro, Julio F.; Abadi, Mario G.; Benavides, José A.; Mast, Damián (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Elliptical (E) and spiral (S) galaxies follow tight, but different, scaling laws that link their stellar masses, radii, and characteristic velocities. Mass and velocity, for example, scale tightly in spirals with little ...