Now showing items 124-143 of 516

  • Henden, Nicholas A; Puchwein, Ewald; Shen, Sijing; Sijacki, Debora (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We present the Feedback Acting on Baryons in Large-scale Environments suite of cosmological hydrodynamical simulations of galaxies, groups, and clusters. The simulations use the AREPO moving-mesh code with a set of physical ...
  • Robustini, Carolina; Leenaarts, Jorrit; de la Cruz Rodriguez, Jaime; Rouppe, Van Der Voort Luc (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    We report on a fan-shaped set of high-speed jets above a strongly magnetized light bridge (LB) of a sunspot observed in the Hα line. We study the origin, dynamics, and thermal properties of the jets using high-resolution ...
  • Brajša, R.; Sudar, D.; Benz, A. O.; Skokić, I.; Bárta, M.; De Pontieu, Bart Walter; Kim, S.; Kobelski, A.; Kuhar, M.; Shimojo, M.; Wedemeyer, Sven; White, S.; Yagoubov, P.; Yan, Y. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Context: Various solar features can be seen in emission or absorption on maps of the Sun in the millimetre and submillimetre wavelength range. The recently installed Atacama Large Millimetre/submillimetre Array (ALMA) is ...
  • Bastian, T. S.; Chintzoglou, G.; De Pontieu, Bart Walter; Shimojo, M.; Schmit, D.; Leenaarts, Jorrit; Loukitcheva, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    We present joint observations of the Sun by the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph (IRIS). Both millimeter/submillimeter-λ continuum emission and ultraviolet ...
  • Nindos, A.; Alissandrakis, C. E.; Bastian, T. S.; Patsourakos, S.; De Pontieu, Bart Walter; Warren, H.; Ayres, T.; Hudson, H. S.; Shimizu, T.; Vial, J.-C.; Wedemeyer, Sven; Yurchyshyn, V. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We present an overview of high-resolution quiet Sun observations, from disk center to the limb, obtained with the Atacama Large millimeter and sub-millimeter Array (ALMA) at 3 mm. Seven quiet-Sun regions were observed at ...
  • Liu, W.; De Pontieu, Bart Walter; Vial, J.-C.; Title, Alan M.; Carlsson, Mats; Uitenbroek, Han; Okamoto, T. J.; Berger, Thomas E.; Antolin, Patrick (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Spectroscopic observations of prominence eruptions associated with coronal mass ejections (CMEs), although relatively rare, can provide valuable plasma and three-dimensional geometry diagnostics. We report the first ...
  • Sand, Maria (Doctoral thesis / Doktoravhandling, 2014)
  • Leenaarts, Jorrit; Pereira, Tiago Mendes Domingos; Carlsson, Mats; Uitenbroek, H.; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    NASA's Interface Region Imaging Spectrograph (IRIS) space mission will study how the solar atmosphere is energized. IRIS contains an imaging spectrograph that covers the Mg II h&k lines as well as a slit-jaw imager centered ...
  • Leenaarts, Jorrit; Pereira, Tiago Mendes Domingos; Carlsson, Mats; Uitenbroek, H.; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    NASA's Interface Region Imaging Spectrograph (IRIS) small explorer mission will study how the solar atmosphere is energized. IRIS contains an imaging spectrograph that covers the Mg II h&k lines as well as a slit-jaw imager ...
  • Pereira, Tiago Mendes Domingos; Leenaarts, Jorrit; De Pontieu, Bart Walter; Carlsson, Mats; Uitenbroek, Han (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    The Mg II h&k lines are the prime chromospheric diagnostics of NASA's Interface Region Imaging Spectrograph (IRIS). In the previous papers of this series, we used a realistic three-dimensional radiative magnetohydrodynamics ...
  • Mendes Domingos Pereira, Tiago; Carlsson, Mats; De Pontieu, Bart Walter; Hansteen, Viggo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    A triplet of subordinate lines of Mg ii exists in the region around the h&k lines. In solar spectra these lines are seen mostly in absorption, but in some cases can become emission lines. The aim of this work is to study ...
  • Lin, Hsiao-Hsuan; Carlsson, Mats; Leenaarts, Jorrit (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    The C i 135.58 nm line is located in the wavelength range of NASA's Interface Region Imaging Spectrograph (IRIS) small explorer mission. We study the formation and diagnostic potential of this line by means of non ...
  • Rathore, Bhavna; Carlsson, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The C ii 133.5nm lines are important observables for the NASA/SMEX mission Interface Region Imaging Spectrograph. To make three-dimensional (3D) non-LTE radiative transfer computationally feasible, it is crucial to have a ...
  • Rathore, Bhavna; Carlsson, Mats; Leenaarts, Jorrit; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We use 3D radiation magnetohydrodynamic models to investigate how the thermodynamic quantities in the simulation are encoded in observable quantities, thus exploring the diagnostic potential of the C ii 133.5 nm lines. We ...
  • Lin, Hsiao-Hsuan; Carlsson, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The O i 135.56 nm line is covered by NASA's Interface Region Imaging Spectrograph (IRIS) small explorer mission which studies how the solar atmosphere is energized. We study here the formation and diagnostic potential of ...
  • Rathore, Bhavna; Mendes Domingos Pereira, Tiago; Carlsson, Mats; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The C ii 133.5 nm multiplet has been observed by NASA's Interface Region Imaging Spectrograph (IRIS) in unprecedented spatial resolution. The aims of this work are to characterize these new observations of the C ii lines, ...
  • Nelson, C. J.; de Jorge Henriques, Vasco Manuel; Mathioudakis, M.; Keenan, F. P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Context. Sunspot atmospheres have been shown to be highly inhomogeneous hosting both quasi-stable and transient features, such as small-scale umbral brightenings (previously named “umbral micro-jets”) and dark fibril-like ...
  • Golding, Thomas Peter; Leenaarts, Jorrit; Carlsson, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Context. While classical models successfully reproduce intensities of many transition region lines, they predict helium extreme-UV (EUV) line intensities roughly an order of magnitude lower than the observed value. Aims. ...
  • Andrade-Santos, F.; Jones, Christine; Forman, William R.; Lovisari, Lorenzo; Vikhlinin, Alexey; van Weeren, Reinout J.; Murray, Stephen S.; Arnaud, Monique; Pratt, Gabriel W.; Démoclès, J.; Kraft, Ralph; Mazzotta, P.; Böhringer, H.; Chon, Gayoung; Giacintucci, Simona; Clarke, Tracy E.; Borgani, S.; David, L.; Douspis, M.; Pointecouteau, E.; Dahle, Håkon; Brown, Shea; Aghanim, Nabila; Rasia, Elena (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    We derive and compare the fractions of cool-core clusters in the Planck Early Sunyaev–Zel'dovich sample of 164 clusters with $z\leqslant 0.35$ and in a flux-limited X-ray sample of 100 clusters with $z\leqslant 0.30$, using ...
  • Du, Minghui; Yang, Weiqiang; Xu, Lixin; Pan, Supriya; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window that may shed light on the nature of dark energy and dark matter. In the ...