Now showing items 636-655 of 1243

  • Henghes, Ben; Lahav, Ofer; Gerdes, David W.; Lin, H. W.; Morgan, R.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Annis, J.; Avila, S.; Bertin, E.; Brooks, D.; 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.; Doel, P.; Everett, S.; Ferrero, Ismael; Frieman, J.; García-Bellido, Juan; Gaztanaga, E.; Gruen, D.; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hinton, S. R.; Honscheid, K.; Hoyle, B.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Marshall, Jennifer L.; Melchior, P.; Menanteau, F.; Miquel, R.; Ogando, R. L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas, Andrés A.; Romer, A. K.; Sánchez, C.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Smith, M.; Soares-Santos, M; Suchyta, E.; Tarle, G.; To, C.; Wilkinson, R. D. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    In this paper we investigate how implementing machine learning could improve the efficiency of the search for Trans-Neptunian Objects (TNOs) within Dark Energy Survey (DES) data when used alongside orbit fitting. The ...
  • Gafeira, Ricardo; Orozco Suarez, D.; Milić, Ivan; Quintero Noda, Carlos; Ruiz Cobo, Basilio; Uitenbroek, Han (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Context. At present, an exponential growth in scientific data from current and upcoming solar observatories is expected. Most of the data consist of high spatial and temporal resolution cubes of Stokes profiles taken in ...
  • Rigby, J. R.; Bayliss, M. B.; Sharon, K.; Gladders, M. D.; Chisholm, J.; Dahle, Håkon; Johnson, Traci; Paterno-Mahler, Rachel; Wuyts, E; Kelson, D. D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We introduce Project MegaSaura: the Magellan Evolution of Galaxies Spectroscopic and Ultraviolet Reference Atlas. MegaSaura comprises medium-resolution, rest-frame ultraviolet spectroscopy of N = 15 bright gravitationally ...
  • Rigby, J. R.; Bayliss, M. B.; Chisholm, J.; Bordoloi, Rongmon; Sharon, K.; Gladders, M. D.; Johnson, T.; Paterno-Mahler, Rachel; Wuyts, E; Dahle, Håkon; Acharyya, A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We stack the rest-frame ultraviolet spectra of N = 14 highly magnified gravitationally lensed galaxies at redshifts $1.6\lt z\lt 3.6$. The resulting new composite spans $900\lt {\lambda }_{\mathrm{rest}}\lt 3000$ Å, with ...
  • Robinson, Rebecca A. (Doctoral thesis / Doktoravhandling, 2023)
    Nanoflares are tiny, energetic explosions on the Sun—and we accidentally simulated one. This work focuses on the development and characteristics of a nanoflare-scale magnetic reconnection event that was simulated using our ...
  • Joshi, Jayant; de la Cruz Rodriguez, Jaime (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Context: Umbral flashes (UF) and running penumbral waves (RPWs) in sunspot chromospheres leave a dramatic imprint in the intensity profile of the Ca II 8542 Å line. Recent studies have focussed on also explaining the ...
  • Garcia, Odd Erik; Leer, Egil; Pecseli, Hans; Trulsen, Jan Karsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Analytical models are presented for currents along vertical magnetic field lines due to slow bulk electron motion in plasmas subject to a gravitational force. It is demonstrated that a general feature of this problem is a ...
  • Peter, Hardi; Ballester, Ernest Alsina; Andretta, Vincenzo; Auchère, Frédéric; Belluzzi, Luca; Bemporad, Alberto; Berghmans, D.; Buchlin, Éric; Calcines, Ariadna; Chitta, Lakshmi Pradeep; Dalmasse, K.; del Pino Alemán, Tanausú; Feller, A.; Froment, Clara; Harrison, R.; Janvier, M.; Matthews, S.; Parenti, S.; Przybylski, D.; Solanki, Sami K.; Štěpán, Jiří; Teriaca, L.; Trujillo Bueno, Javier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The magnetic activity of the Sun directly impacts the Earth and human life. Likewise, other stars will have an impact on the habitability of planets orbiting these host stars. Although the magnetic field at the ...
  • Howson, Thomas A.; De Moortel, Moortel; Pontin, David I. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Context. The magnetic Kelvin-Helmholtz instability (KHI) has been proposed as a means of generating magnetohydrodynamic turbulence and encouraging wave energy dissipation in the solar corona, particularly within transversely ...
  • Jafarzadeh, Shahin; Rouppe, Van Der Voort Luc; de la Cruz Rodriguez, Jaime (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Rapid magnetic up fl ows in the quiet-Sun photosphere were recently uncovered from both SUNRISE / IMaX and Hinode / SOT observations. Here, we study magnetic up flow events ( MUEs ) from high-quality, high- ( spatial, ...
  • Allahyari, Alireza; Khodali, Mohsen; Vagnozzi, Sunny; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Non-linear electrodynamics (NLED) theories are well-motivated extensions of QED in the strong field regime, and have long been studied in the search for regular black hole (BH) solutions. We consider two well-studied and ...
  • Gilchrist-Millar, Caitlin A.; Jess, David B.; Grant, Samuel D. T.; Keys, Peter H.; Beck, Christian; Jafarzadeh, Shahin; Riedl, Julia M.; Van Doorsselaere, Tom; Ruiz Cobo, Basilio (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The suitability of solar pores as magnetic wave guides has been a key topic of discussion in recent years. Here, we present observational evidence of propagating magnetohydrodynamic wave activity in a group of five ...
  • Houston, Scott J.; Jess, David B.; Keppens, Rony; Stangalini, Marco; Keys, Peter H.; Grant, Samuel D. T.; Jafarzadeh, Shahin; McFetridge, L. M.; Murabito, Mariarita; Ermolli, I.; Giorgi, F. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
  • Howson, T. A.; de Moortel, Ineke; Reid, J.; Hood, A. W. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Aims. We investigate the propagation of transverse magnetohydrodynamic (MHD) wave fronts through a coronal plasma containing a braided magnetic field. Methods. We performed a series of three dimensional MHD simulations ...
  • Banerjee, D.; Prasad, S. Krishna; Pant, V.; McLaughlin, J. A.; Antolin, Patrick; Magyar, Norbert; Ofman, Leon; Tian, H.; Van Doorsselaere, Tom; de Moortel, Ineke; Wang, T. J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
    Modern observatories have revealed the ubiquitous presence of magnetohydrodynamic waves in the solar corona. The propagating waves (in contrast to the standing waves) are usually originated in the lower solar atmosphere ...
  • Kumar, Sanjay; Prasad, Avijeet; Sarkar, Ranadeep; Bhattacharyya, Ramit (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Magnetohydrodynamics simulation of active region NOAA 11515 is performed to examine the initiation of the M5.6 flaring event that starts around 10:43 UT on 2 July 2012. The simulation is conducted using an extrapolated ...
  • Wissing, Robert; Shen, Sijing; Wadsley, James; Quinn, Thomas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The magnetorotational instability (MRI) is an important process in driving turbulence in sufficiently ionized accretion disks. It has been extensively studied using simulations with Eulerian grid codes, but remains fairly ...
  • Vanzella, E.; Castellano, M.; Meneghetti, M.; Mercurio, A.; Caminha, G. B.; Cupani, G.; Calura, F.; Christensen, L.; Merlin, E.; Rosati, P.; Gronke, Max Balthasar; Dijkstra, Mark; Mignoli, M.; Gilli, R.; De Barros, S.; Caputi, K.; Grillo, C.; Balestra, I.; Cristiani, S.; Nonino, M.; Giallongo, E.; Grazian, A.; Pentericci, L.; Fontana, A.; Comastri, A.; Vignali, C.; Zamorani, G.; Brusa, M.; Bergamini, P.; Tozzi, P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017. The American Astronomical Society. All rights reserved.
  • Carruba, V.; Camargo, J.I.B.; Aljbaae, S.; Ferreira, F.S.; Lin, E.; Figueiredo-Peixoto, V.; Banda-Huarca, M.V.; Pieres, A.; Boufleur, R.C.; da Costa, L. N.; Abbott, T.M.C.; Aguena, M.; Allam, S.S.; Alves, O.; Bernardinelli, P.H.; Bertin, E.; Brooks, D.; Carnero Rosell, A.; Carretero, J.; Pereira, M.E.S.; Davis, T.M.; De Vicente, J.; Desai, S.; Doel, P.; Ferrero, Ismael; Friedel, D.; Frieman, J.; García-Bellido, J.; Gatti, M.; Giannini, G.; Gruen, D.; Gruendl, R.A.; Herner, K.; Hinton, S.R.; Hollowood, D.L.; James, D.J.; Kent, S.; Kuehn, K.; Lahav, O.; Marshall, J.L.; Mena-Fernández, J.; Miquel, R.; Palmese, A.; Plazas Malagón, A. A.; Rodríguez-Monroy, M.; Sanchez, E.; Santiago, B.; Schubnell, M.; Smith, M.; Suchyta, E.; Swanson, M.E.C.; Tarle, G.; Walker, A.R.; Weaverdyck, N.; Wiseman, P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    ABSTRACT While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more ...
  • Sánchez, J.; Omori, Y.; Chang, C.; Bleem, L.E.; Crawford, T.; Drlica-Wagner, A.; Raghunathan, S.; Zacharegkas, G.; Abbott, T.M.C.; Aguena, M.; Alarcon, A.; Allam, S.; Alves, O.; Amon, A.; Avila, S.; Baxter, E.; Bechtol, K.; Benson, B.A.; Bernstein, G.M.; Bertin, E.; Bocquet, S.; Brooks, D.; Burke, D.L.; Campos, A.; Carlstrom, J.E.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F.J.; Cawthon, R.; Chang, C.L.; Chen, A.; Choi, A.; Chown, R.; Costanzi, M.; Crites, A.T.; Crocce, M.; da Costa, L.N.; Pereira, M.E.S.; de Haan, T.; De Vicente, J.; DeRose, J.; Desai, S.; Diehl, H.T.; Dobbs, M.A.; Dodelson, S.; Doel, P.; Elvin-Poole, J.; Everett, W.; Everett, S.; Ferrero, Ismael; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gatti, M.; George, E.M.; Gerdes, D.W.; Giannini, G.; Gruen, D.; Gruendl, R.A.; Gschwend, J.; Gutierrez, G.; Halverson, N.W.; Hinton, S.R.; Holder, G.P.; Hollowood, D.L.; Holzapfel, W.L.; Honscheid, K.; Hrubes, J.D.; James, D.J.; Knox, L.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Lee, A.T.; Luong-Van, D.; MacCrann, N.; Marshall, J.L.; McCullough, J.; McMahon, J.J.; Melchior, P.; Mena-Fernández, J.; Menanteau, F.; Miquel, R.; Mocanu, Laura-Monica; Mohr, J.J.; Muir, J.; Myles, J.; Natoli, T.; Padin, S.; Palmese, A.; Pandey, S.; Paz-Chinchón, F.; Pieres, A.; Plazas Malagón, A.A.; Porredon, A.; Pryke, C.; Raveri, M.; Reichardt, C.L.; Rodriguez-Monroy, M.; Ross, A.J.; Ruhl, J.E.; Rykoff, E.; Sánchez, C.; Sanchez, E.; Scarpine, V.; Schaffer, K.K.; Sevilla-Noarbe, I.; Sheldon, E.; Shirokoff, E.; Smith, M.; Soares-Santos, M.; Staniszewski, Z.; Stark, A.A.; Suchyta, E.; Swanson, Molly E. C.; Tarle, G.; Thomas, D.; Troxel, M.A.; Tucker, D.L.; Vieira, J.D.; Vincenzi, M.; Weaverdyck, N.; Williamson, R.; Yanny, B.; Yin, B. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)