Now showing items 109-128 of 1243

  • Rigby, J. R.; Bayliss, M. B.; Gladders, M. D.; Sharon, K.; Wuyts, E; Dahle, Håkon; Johnson, T.; Peña-Guerrero, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We measure [C iii] 1907, C iii] 1909 Å emission lines in 11 gravitationally lensed star-forming galaxies at z ~ 1.6–3, finding much lower equivalent widths than previously reported for fainter lensed galaxies. While it is ...
  • Bernardinelli, Pedro H.; Bernstein, Gary M.; Montet, Benjamin T.; Weryk, Robert; Wainscoat, Richard; Aguena, Michel; Allam, Sahar; Andrade-Oliveira, F.; Annis, J.; Avila, S.; Bertin, E.; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Cawthon, R.; Conselice, Christopher; Costanzi, M.; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; De Vicente, J.; Diehl, Herman T.; Everett, S.; Ferrero, Ismael; Flaugher, B.; Frieman, J.; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; James, D. J.; Kuehn, Kyler; Kuropatkin, Nikolay; Lahav, Ofer; Maia, Marcio A. G.; Marshall, Jennifer L.; Menanteau, Felipe; Miquel, Ramon; Morgan, Robert; Ogando, Ricardo L. C.; Paz-Chinchón, Francisco; Pieres, Adriano; Plazas Malagón, A. A.; Rodriguez-Monroy, M.; Romer, A. K.; Roodman, A.; Sanchez, E.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, Ignacio; Smith, M.; Soares-Santos, Marcelle; Suchyta, E.; Swanson, Molly E. C.; Tarlé, Gregory; To, Chun-Hao; Troxel, M. A.; Varga, T. N.; Walker, A. R.; Zhang, Y. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
  • Appel, John W.; Bennett, Charles L.; Brewer, Michael K.; Bustos, Ricardo; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna D.; Dahal, Sumit; Datta, Rahul; Denis, Kevin; Eimer, Joseph; Essinger-Hileman, Thomas; Harrington, Kathleen; Iuliano, Jeffrey; Li, Yunyang; Marriage, Tobias A.; Núñez, Carolina; Osumi, Keisuke; Padilla, Ivan L.; Petroff, Matthew A.; Rostem, Karwan; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The current and future cosmic microwave background (CMB) experiments fielding kilopixel arrays of transition-edge sensor (TES) bolometers require accurate and robust gain calibration methods. We simplify and refactor the ...
  • Wang, Deng; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Motivated by the discrepancy in measurements of H0 between local and global probes, we investigate whether teleparallel gravities could be a better model to describe the present-day observations or at least to alleviate ...
  • Polito, Vanessa; Testa, Paola; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
  • González Manrique, Sergio Javier; Quintero Noda, Carlos; Kuckein, Christoph; Ruiz Cobo, Basilio; Carlsson, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We examine the capabilities of a fast and simple method to infer line-of-sight (LOS) velocities from observations of the photospheric Si  I 10 827 Å line. This spectral line is routinely observed together with the chromospheric ...
  • Joshi, Reetika; Chandra, Ramesh; Schmieder, Brigitte; Moreno-Insertis, Fernando; Aulanier, Guillaume; Nóbrega Siverio, Daniel Elias; Devi, Pooja (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Context. Hot coronal jets are a basic observed feature of the solar atmosphere whose physical origin is still actively debated. Aims. We study six recurrent jets that occurred in active region NOAA 12644 on April 4, 2017. ...
  • Leenaarts, Jorrit; Golding, Thomas Peter; Carlsson, Mats; Libbrecht, Tine; Joshi, Jayant (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Context. The He i 1083 nm is a powerful diagnostic for inferring properties of the upper solar chromosphere, in particular for the magnetic field. The basic formation of the line in one-dimensional models is well understood, ...
  • Pietrow, A.G.M.; Kiselman, D.; Andriienko, O.; Petit dit de la Roche, D. J. M.; Díaz Baso, Carlos José; Calvo, F. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Context. Observations of center-to-limb variations (CLVs) of spectral lines and continua provide a good test for the accuracy of models with a solar and stellar atmospheric structure and spectral line formation. They are ...
  • Ninive, Per Harald (Master thesis / Masteroppgave, 2009)
    En mulig forklaring på at universet gikk inn i en fase av akselerert ekspansjon for 5-6 milliarder år siden, er at energitettheten i universet inneholder et bidrag fra et dynamisk skalarfelt. Problemet med denne forklaringen ...
  • Winther, Hans Arnold (Master thesis / Masteroppgave, 2010)
    We investigate scalar-field theories with a field-dependent coupling to matter and show the existence of a chameleon mechanism. The thin-shell solutions for a spherical body are found, and used to investigate the consequences ...
  • Zhang, B; David, L. P.; Jones, C.; Andrade-Santos, F.; O'Sullivan, E.; Dahle, Håkon; Nulsen, P. E. J.; Clarke, T. E.; Pointecouteau, E; Pratt, G. W.; Arnaud, M.; Vrtilek, J. M.; Ji, L.; van Weeren, R. J.; Kraft, R. P.; Kong, X. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We present Chandra and XMM-Newton observations of PLCK G036.7+14.9 from the Chandra–Planck Legacy Program. The high resolution X-ray observations reveal two close (~72'' = 193 kpc in projection) subclusters, G036N and ...
  • Giles, P. A.; Maughan, B. J.; Dahle, Håkon; Bonamente, M.; Landry, D.; Jones, C.; Joy, M.; Murray, S. S.; van der Pyl, N. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    We present the results of work involving a statistically complete sample of 34 galaxy clusters, in the redshift range 0.15 ≤ z ≤ 0.3 observed with Chandra. We investigate the luminosity–mass (LM) relation for the cluster ...
  • Mohan, Atul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Context. Metrewave solar type-III radio bursts offer a unique means to study the properties of turbulence across coronal heights. Theoretical models have shown that the apparent intensity and size of the burst sources ...
  • Cremonese, Paolo; Mota, David; Salzano, Vincenzo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract To recognize gravitational wave lensing events and being able to differentiate between similar lens models will be of crucial importance once one will be observing several lensing events of gravitational waves per ...
  • Breysse, Patrick C.; Chung, Dongwoo T.; Ihle, Håvard Tveit (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    ABSTRACT We introduce a novel unbiased, cross-correlation estimator for the one-point statistics of cosmological random fields. One-point statistics are a useful tool for analysis of highly non-Gaussian density ...
  • Bose, Souvik; de Jorge Henriques, Vasco Manuel; Joshi, Jayant; Rouppe van der Voort, Luc (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We characterize, for the first time, type-II spicules in Ca II K 3934 Å using the CHROMIS instrument at the Swedish 1 m Solar Telescope. We find that their line formation is dominated by opacity shifts with the K3 minimum ...
  • Eklund, Henrik; Wedemeyer, Sven; Snow, Ben; Jess, David B.; Jafarzadeh, Shahin; Grant, Samuel D. T.; Carlsson, Mats; Szydlarski, Mikolaj Marcin (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Observations at millimetre wavelengths provide a valuable tool to study the small-scale dynamics in the solar chromosphere. We evaluate the physical conditions of the atmosphere in the presence of a propagating shock wave ...
  • Golden-Marx, Jesse B.; Zhang, Y.; Ogando, R.L.C.; Allam, S.; Tucker, D.L.; Miller, C.J.; Hilton, M.; Mutlu-Pakdil, B.; Abbott, T.M.C.; Aguena, M.; Alves, O.; Andrade-Oliveira, F.; Annis, J.; Bacon, D.; Bertin, E.; Bocquet, S.; Brooks, D.; Burke, D.L.; Carnero Rosell, A.; Carrasco Kind, M.; Castander, F.J.; Conselice, C.; Costanzi, M.; da Costa, L.N.; Pereira, M.E.S.; De Vicente, J.; Desai, S.; Doel, P.; Everett, S.; Ferrero, Ismael; Flaugher, B.; Frieman, J.; García-Bellido, J.; Gerdes, D.W.; Gruen, D.; Gruendl, R.A.; Gutierrez, G.; Hinton, S.R.; Hollowood, D.L.; Honscheid, K.; James, D.J.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Marshall, J.L.; Melchior, P.; Mena-Fernández, J.; Miquel, R.; Mohr, J.J.; Palmese, A.; Paz-Chinchón, F.; Pieres, A.; Plazas Malagón, A.A.; Prat, J.; Raveri, M.; Rodriguez-Monroy, M.; Romer, A.K.; Sanchez, E.; Scarpine, V.; Sevilla-Noarbe, I.; Sifón, C.; Smith, M.; Suchyta, E.; Swanson, M.E.C.; Tarle, G.; Vincenzi, M.; Weaverdyck, N.; Yanny, B. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    ABSTRACT We characterize the properties and evolution of bright central galaxies (BCGs) and the surrounding intracluster light (ICL) in galaxy clusters identified in the Dark Energy Survey and Atacama Cosmology ...
  • Faber, Jonas Thoen (Master thesis / Masteroppgave, 2022)
    The Interface Region Imaging Spectrograph (IRIS) provides simultaneous imaging and spectral data of the chromosphere and transition region (TR) with great spatial, spectral and temporal resolution. A Solar coronal hole ...