Juan Martinez Sykora

Førsteamanuensis II - Rosseland senter for solfysikk
Bilde av Juan Martinez Sykora
English version of this page
Brukernavn
Besøksadresse Sem Sælands vei 13 Svein Rosselands hus 0371 OSLO
Postadresse Postboks 1029 0315 OSLO

Publikasjoner

  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; de la Cruz Rodriguez, Jaime & Chintzoglou, Georgios (2020). The Formation Height of Millimeter-wavelength Emission in the Solar Chromosphere. Astrophysical Journal Letters.  ISSN 2041-8205.  891(1) . doi: 10.3847/2041-8213/ab75ac
  • Martinez-Sykora, Juan; Leenarts, Jorrit; De Pontieu, Bart Walter; Nóbrega Siverio, Daniel Elias; Hansteen, Viggo; Carlsson, Mats & Szydlarski, Mikolaj Marcin (2020). Ion–neutral Interactions and Nonequilibrium Ionization in the Solar Chromosphere. Astrophysical Journal (ApJ).  ISSN 0004-637X.  889(2) . doi: 10.3847/1538-4357/ab643f
  • Nóbrega Siverio, Daniel Elias; Martinez-Sykora, Juan; Moreno-Insertis, Fernando & Carlsson, Mats (2020). Ambipolar diffusion in the Bifrost code. Astronomy and Astrophysics.  ISSN 0004-6361.  638 . doi: 10.1051/0004-6361/202037809 Fulltekst i vitenarkiv.
  • Nóbrega Siverio, Daniel Elias; Moreno-Insertis, Fernando; Martinez-Sykora, Juan; Carlsson, Mats & Szydlarski, Mikolaj Marcin (2020). Nonequilibrium ionization and ambipolar diffusion in solar magnetic flux emergence processes. Astronomy and Astrophysics.  ISSN 0004-6361.  633 . doi: 10.1051/0004-6361/201936944 Fulltekst i vitenarkiv.
  • Rouppe van der Voort, Luc; De Pontieu, Bart Walter; Carlsson, Mats; de la Cruz Rodriguez, Jaime; Bose, Souvik; Chintzoglou, Georgios; Drews, Ainar; Froment, Clara; Gošić, Milan; Graham, David R.; Hansteen, Viggo; de Jorge Henriques, Vasco Manuel; Jafarzadeh, Shahin; Joshi, Jayant; Kleint, Lucia; Kohutova, Petra; Leifsen, Torben; Martinez-Sykora, Juan; Nóbrega Siverio, Daniel Elias; Ortiz, Ada; Mendes Domingos Pereira, Tiago; Popovas, Andrius; Quintero Noda, Carlos; Sainz Dalda, Alberto; Scharmer, Göran B.; Schmit, Donald; Scullion, Eamon; Skogsrud, Håkon; Szydlarski, Mikolaj Marcin; Timmons, R.; Vissers, Gregal Joan Maria; Woods, M. M. & Zacharias, Pia (2020). High-resolution observations of the solar photosphere, chromosphere, and transition region: A database of coordinated IRIS and SST observations. Astronomy and Astrophysics.  ISSN 0004-6361.  641 . doi: 10.1051/0004-6361/202038732 Fulltekst i vitenarkiv.
  • Cheung, M. C. M.; Rempel, M.; Chintzoglou, G.; Chen, F.; Testa, Paola; Martinez-Sykora, Juan; Sainz Dalda, Alberto; DeRosa, M. L.; Malanushenko, A.; Hansteen, Viggo; De Pontieu, Bart Walter; Carlsson, Mats; Gudiksen, Boris Vilhelm & McIntosh, Scott (2019). A comprehensive three-dimensional radiative magnetohydrodynamic simulation of a solar flare. Nature Astronomy.  ISSN 2397-3366.  3, s 160- 166 . doi: 10.1038/s41550-018-0629-3
  • Cheung, Mark C. M.; De Pontieu, Bart Walter; Martinez-Sykora, Juan; Testa, Paola; Winebarger, Amy R.; Daw, Adrian N.; Hansteen, Viggo; Antolin, Patrick; Tarbell, Theodore D.; Wüelser, Jean Pierre & Young, Peter (2019). Multi-component Decomposition of Astronomical Spectra by Compressed Sensing. Astrophysical Journal (ApJ).  ISSN 0004-637X.  882(1) . doi: 10.3847/1538-4357/ab263d Fulltekst i vitenarkiv.
  • De Pontieu, Bart Walter; Martinez-Sykora, Juan; Testa, Paola; Winebarger, Amy R.; Daw, Adrian N.; Hansteen, Viggo; Cheung, Mark C. M. & Antolin, Patrick (2019). The Multi-slit Approach to Coronal Spectroscopy with the Multi-slit Solar Explorer (MUSE). Astrophysical Journal (ApJ).  ISSN 0004-637X.  888(1) . doi: 10.3847/1538-4357/ab5b03 Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; Hansteen, Viggo; Gudiksen, Boris Vilhelm; Carlsson, Mats; De Pontieu, Bart Walter & Gošić, Milan (2019). On the Origin of the Magnetic Energy in the Quiet Solar Chromosphere. Astrophysical Journal (ApJ).  ISSN 0004-637X.  878(1) . doi: 10.3847/1538-4357/ab1f0b Fulltekst i vitenarkiv.
  • Chintzoglou, G.; De Pontieu, Bart Walter; Martinez-Sykora, Juan; Mendes Domingos Pereira, Tiago; Vourlidas, A. & Beltran, Samuel Tun (2018). Bridging the gap: Capturing the Lyα Counterpart of a Type-II Spicule and its Heating Evolution with VAULT2.0 and IRIS Observations. Astrophysical Journal (ApJ).  ISSN 0004-637X.  857(1) . doi: 10.3847/1538-4357/aab607 Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; De Moortel, Ineke; De Pontieu, Bart Walter; Hansteen, Viggo & Carlsson, Mats (2018). Impact of Type II Spicules in the Corona: Simulations and Synthetic Observables. Astrophysical Journal (ApJ).  ISSN 0004-637X.  860(2) . doi: 10.3847/1538-4357/aac2ca Fulltekst i vitenarkiv.
  • Moreno-Insertis, F.; Hansteen, Viggo; Martinez-Sykora, Juan & Munoz, D. (2018). Small-scale Magnetic Flux Emergence in the Quiet Sun. Astrophysical Journal Letters.  ISSN 2041-8205.  859(2) . doi: 10.3847/2041-8213/aac648 Fulltekst i vitenarkiv.
  • De Pontieu, Bart Walter; De Moortel, I.; Martinez-Sykora, Juan & McIntosh, S. W. (2017). Observations and Numerical Models of Solar Coronal Heating Associated with Spicules. Astrophysical Journal Letters.  ISSN 2041-8205.  845(2) . doi: 10.3847/2041-8213/aa7fb4 Fulltekst i vitenarkiv.
  • De Pontieu, Bart Walter; Martinez-Sykora, Juan & Chintzoglou, Georgios (2017). What Causes the High Apparent Speeds in Chromospheric and Transition Region Spicules on the Sun?. Astrophysical Journal Letters.  ISSN 2041-8205.  849(1) . doi: 10.3847/2041-8213/aa9272 Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Carlsson, Mats; Hansteen, Viggo; Nobrega-Siverio, Daniel & Gudiksen, Boris Vilhelm (2017). Two-dimensional Radiative Magnetohydrodynamic Simulations of Partial Ionization in the Chromosphere. II. Dynamics and Energetics of the Low Solar Atmosphere. Astrophysical Journal (ApJ).  ISSN 0004-637X.  847(1) . doi: 10.3847/1538-4357/aa8866 Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Hansteen, Viggo; Rouppe van der Voort, Luc; Carlsson, Mats & Mendes Domingos Pereira, Tiago (2017). On the generation of solar spicules and Alfvenic waves. Science.  ISSN 0036-8075.  356(6344), s 1269- 1272 . doi: 10.1126/science.aah5412 Fulltekst i vitenarkiv.
  • Nobrega-Siverio, Daniel; Martinez-Sykora, Juan; Moreno-Insertis, F. & Rouppe van der Voort, Luc (2017). Surges and Si IV Bursts in the Solar Atmosphere: Understanding IRIS and SST Observations through RMHD Experiments. Astrophysical Journal (ApJ).  ISSN 0004-637X.  850(2) . doi: 10.3847/1538-4357/aa956c Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Carlsson, Mats & Hansteen, Viggo (2016). On the Misalignment between Chromospheric Features and the Magnetic Field on the Sun. Astrophysical Journal Letters.  ISSN 2041-8205.  831(1) . doi: 10.3847/2041-8205/831/1/L1
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Hansteen, Viggo & Gudiksen, Boris Vilhelm (2016). TIME DEPENDENT NONEQUILIBRIUM IONIZATION of TRANSITION REGION LINES OBSERVED with IRIS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  817(1) . doi: 10.3847/0004-637X/817/1/46 Fulltekst i vitenarkiv.
  • Cheung, Mark C. M.; De Pontieu, Bart Walter; Tarbell, Theodore D.; Fu, Y.; Tian, H.; Testa, Paola; Reeves, K. K.; Martinez-Sykora, Juan; Boerner, P.; Wulser, J. P.; Lemen, J.; Title, Alan M.; Hurlburt, N.; Kleint, L.; Kankelborg, C.; Jaeggli, S.; Golub, L.; McKillop, S.; Saar, S.; Carlsson, Mats & Hansteen, Viggo (2015). Homologous helical jets: Observations by IRIS, SDO, and Hinode and magnetic modeling with data-driven simulations. Astrophysical Journal (ApJ).  ISSN 0004-637X.  801(2) . doi: 10.1088/0004-637X/801/2/83 Fulltekst i vitenarkiv.
  • De Pontieu, Bart Walter; McIntosh, Scott; Martinez-Sykora, Juan; Peter, Hardi & Mendes Domingos Pereira, Tiago (2015). Why is non-thermal line broadening of spectral lines in the lower transition region of the sun independent of spatial resolution?. Astrophysical Journal Letters.  ISSN 2041-8205.  799(1) . doi: 10.1088/2041-8205/799/1/L12 Fulltekst i vitenarkiv.
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Hansteen, Viggo & Carlsson, Mats (2015). The role of partial ionization effects in the chromosphere. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.  ISSN 1364-503X.  373(2042) . doi: 10.1098/rsta.2014.0268
  • Martinez-Sykora, Juan; Rouppe, Van Der Voort Luc; Carlsson, Mats; De Pontieu, Bart Walter; Mendes Domingos Pereira, Tiago; Boerner, P.; Hurlburt, N.; Kleint, Lucia; Lemen, J.; Tarbell, Ted D.; Title, A.; Wüelser, Jean Pierre; Hansteen, Viggo; Golub, Leon; McKillop, S.; Reeves, K. K.; Saar, S.; Testa, Paola; Tian, Hui; Jaeggli, S. & Kankelborg, C. (2015). Internetwork Chromospheric Bright Grains Observed with IRIS and SST. Astrophysical Journal (ApJ).  ISSN 0004-637X.  803(1) . doi: 10.1088/0004-637X/803/1/44 Fulltekst i vitenarkiv.
  • Kleint, L.; Antolin, Patrick; Tian, H; Judge, Philip G.; Testa, Paola; De Pontieu, Bart Walter; Martinez-Sykora, Juan; Reeves, K. K.; Wuelser, J. P.; McKillop, S.; Saar, S.; Carlsson, Mats; Boerner, P.; Hurlburt, N.; Lemen, J.; Tarbell, T.D.; Title, A.; Golub, L.; Hansteen, Viggo; Jaeggli, S. & Kankelborg, C. (2014). Detection of supersonic downflows and associated heating events in the transition region above sunspots. Astrophysical Journal Letters.  ISSN 2041-8205.  789(2) . doi: 10.1088/2041-8205/789/2/L42 Fulltekst i vitenarkiv.
  • Tian, H; DeLuca, E.; Reeves, K. K.; McKillop, S.; De Pontieu, Bart Walter; Martinez-Sykora, Juan; Carlsson, Mats; Hansteen, Viggo; Kleint, L.; Cheung, M; Golub, L.; Saar, S.; Testa, Paola; Weber, M.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Tarbell, T.D.; Wuelser, J. P.; Kankelborg, C.; Jaeggli, S. & McIntosh, S.W. (2014). HIGH-RESOLUTION OBSERVATIONS OF THE SHOCK WAVE BEHAVIOR FOR SUNSPOT OSCILLATIONS WITH THE INTERFACE REGION IMAGING SPECTROGRAPH. Astrophysical Journal (ApJ).  ISSN 0004-637X.  786(2) . doi: 10.1088/0004-637X/786/2/137 Fulltekst i vitenarkiv.
  • De Pontieu, Bart Walter; Rouppe, Van Der Voort Luc; McIntosh, S.W.; Pereira, Tiago Mendes Domingos; Carlsson, Mats; Hansteen, Viggo; Skogsrud, Håkon; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Tarbell, T.D.; Wuelser, J. P.; De Luca, E. E.; Golub, L.; McKillop, S.; Reeves, K.; Saar, S.; Testa, Paola; Tian, H.; Kankelborg, C.; Jaeggli, S.; Kleint, L. & Martinez-Sykora, Juan (2014). On the prevalence of small-scale twist in the solar chromosphere and transition region. Science.  ISSN 0036-8075.  346(6207) . doi: 10.1126/science.1255732
  • Hansteen, Viggo; De Pontieu, Bart Walter; Carlsson, Mats; Lemen, James R.; Title, Alan M.; Boerner, Paul F.X.; Hurlburt, Neal E.; Tarbell, Theodore D.; Wüelser, Jean Pierre; Pereira, Tiago Mendes Domingos; De Luca, Edward E.; Golub, Leon; McKillop, Sean C.; Reeves, Katharine K.; Saar, Steven H.; Testa, Paola; Tian, Hui; Kankelborg, Charles C.; Jaeggli, Sarah A.; Kleint, Lucia & Martinez-Sykora, Juan (2014). The unresolved fine structure resolved: IRIS observations of the solar transition region. Science.  ISSN 0036-8075.  346(6207) . doi: 10.1126/science.1255757
  • Pereira, Tiago Mendes Domingos; De Pontieu, Bart Walter; Carlsson, Mats; Hansteen, Viggo; Tarbell, T.D.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Wulser, J. P.; Martinez-Sykora, Juan; Kleint, L.; Golub, L.; McKillop, S.; Reeves, K. K.; Saar, S.; Testa, Paola; Tian, H; Jaeggli, S. & Kankelborg, C. (2014). An interface region imaging spectrograph first view on solar spicules. Astrophysical Journal Letters.  ISSN 2041-8205.  792(1) . doi: 10.1088/2041-8205/792/1/L15 Fulltekst i vitenarkiv.
  • Peter, H.; Tian, H.; Curdt, W.; Schmit, D.; Innes, D.; De Pontieu, Bart Walter; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Tarbell, T.D.; Wuelser, J. P.; Martinez-Sykora, Juan; Kleint, L.; Golub, L.; McKillop, S.; Reeves, K. K.; Saar, S.; Testa, Paola; Kankelborg, C.; Jaeggli, S.; Carlsson, Mats & Hansteen, Viggo (2014). Hot explosions in the cool atmosphere of the Sun. Science.  ISSN 0036-8075.  346(6207) . doi: 10.1126/science.1255726
  • Testa, Paola; De Pontieu, Bart Walter; Allred, J.; Carlsson, Mats; Reale, F.; Daw, A.; Hansteen, Viggo; Martinez-Sykora, Juan; Liu, W.; DeLuca, E.E.; Golub, L.; McKillop, S.; Reeves, K.; Saar, S.; Tian, H.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Tarbell, T.D.; Wuelser, J. P.; Kleint, L.; Kankelborg, C. & Jaeggli, S. (2014). Evidence of nonthermal particles in coronal loops heated impulsively by nanoflares. Science.  ISSN 0036-8075.  346(6207) . doi: 10.1126/science.1255724
  • Tian, H.; DeLuca, E.E.; Cranmer, S.R.; De Pontieu, Bart Walter; Peter, H.; Martinez-Sykora, Juan; Golub, L.; McKillop, S.; Reeves, K. K.; Miralles, M. P.; McCauley, P.; Saar, S.; Testa, Paola; Weber, M.; Murphy, N.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Tarbell, T.D.; Wuelser, J. P.; Kleint, L.; Kankelborg, C.; Jaeggli, S.; Carlsson, Mats; Hansteen, Viggo & McIntosh, S.W. (2014). Prevalence of small-scale jets from the networks of the solar transition region and chromosphere. Science.  ISSN 0036-8075.  346(6207) . doi: 10.1126/science.1255711
  • Martinez-Sykora, Juan; De Pontieu, Bart Walter; Leenaarts, Jorrit; Pereira, Tiago Mendes Domingos; Carlsson, Mats; Hansteen, Viggo; Stern, J. V.; Tian, H; McIntosh, S.W. & Rouppe, Van Der Voort Luc (2013). A DETAILED COMPARISON BETWEEN THE OBSERVED AND SYNTHESIZED PROPERTIES OF A SIMULATED TYPE II SPICULE. Astrophysical Journal (ApJ).  ISSN 0004-637X.  771(1) . doi: 10.1088/0004-637X/771/1/66 Fulltekst i vitenarkiv.
  • Testa, Paola; De Pontieu, Bart; Martinez-Sykora, Juan; DeLuca, E.; Hansteen, Viggo; Cirtain, J.; Winebarger, A.; Golub, L.; Kobayashi, K.; Korreck, K.; Kuzin, S.; Walsh, R.; DeForest, C.; Title, A. & Weber, Mark (2013). OBSERVING CORONAL NANOFLARES IN ACTIVE REGION MOSS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  770(1) . doi: 10.1088/2041-8205/770/1/L1
  • Dalda, A. S.; Martinez-Sykora, Juan; Bellot Rubio, L. R. & Title, A. (2012). STUDY OF SINGLE-LOBED CIRCULAR POLARIZATION PROFILES IN THE QUIET SUN. Astrophysical Journal (ApJ).  ISSN 0004-637X.  748(1) . doi: 10.1088/0004-637X/748/1/38
  • Martinez-Sykora, Juan (2012). Two Types of Spicules “Observed” in 3D Realistic Models. Astronomical Society of the Pacific Conference Series.  ISSN 1050-3390.  454, s 133- 136
  • Martinez-Sykora, Juan; De Pontieu, Bart & Hansteen, Viggo (2012). TWO-DIMENSIONAL RADIATIVE MAGNETOHYDRODYNAMIC SIMULATIONS OF THE IMPORTANCE OF PARTIAL IONIZATION IN THE CHROMOSPHERE. Astrophysical Journal (ApJ).  ISSN 0004-637X.  753(2) . doi: 10.1088/0004-637X/753/2/161
  • Testa, Paola; De Pontieu, Bart; Martinez-Sykora, Juan; Hansteen, Viggo & Carlsson, Mats (2012). INVESTIGATING THE RELIABILITY OF CORONAL EMISSION MEASURE DISTRIBUTION DIAGNOSTICS USING THREE-DIMENSIONAL RADIATIVE MAGNETOHYDRODYNAMIC SIMULATIONS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  758(1) . doi: 10.1088/0004-637X/758/1/54
  • De Pontieu, Bart; McIntosh, S.W.; Carlsson, Mats; Hansteen, Viggo; Tarbell, T.D.; Boerner, P.; Martinez-Sykora, Juan; Schrijver, C. J. & Title, A. M. (2011). The Origins of Hot Plasma in the Solar Corona. Science.  ISSN 0036-8075.  331(6013), s 55- 58 . doi: 10.1126/science.1197738
  • Gudiksen, Boris Vilhelm; Carlsson, Mats; Hayek, Wolfgang; Hansteen, Viggo; Leenaarts, Jorrit & Martinez-Sykora, Juan (2011). The stellar atmosphere simulation code Bifrost. Code description and validation. Astronomy and Astrophysics.  ISSN 0004-6361.  531 . doi: 10.1051/0004-6361/201116520
  • Martinez-Sykora, Juan; De Pontieu, Bart; Hansteen, Viggo & McIntosh, Scott (2011). WHAT DO SPECTRAL LINE PROFILE ASYMMETRIES TELL US ABOUT THE SOLAR ATMOSPHERE?. Astrophysical Journal (ApJ).  ISSN 0004-637X.  732(2) . doi: 10.1088/0004-637X/732/2/84
  • Martinez-Sykora, Juan; De Pontieu, Bart; Testa, Paola & Hansteen, Viggo (2011). FORWARD MODELING OF EMISSION IN SOLAR DYNAMICS OBSERVATORY/ATMOSPHERIC IMAGING ASSEMBLY PASSBANDS FROM DYNAMIC THREE-DIMENSIONAL SIMULATIONS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  743(1) . doi: 10.1088/0004-637X/743/1/23
  • Martinez-Sykora, Juan; Hansteen, Viggo & Moreno-Insertis, F. (2011). ON THE ORIGIN OF THE TYPE II SPICULES: DYNAMIC THREE-DIMENSIONAL MHD SIMULATIONS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  736(1) . doi: 10.1088/0004-637X/736/1/9
  • Tian, H; McIntosh, S.W.; De Pontieu, Bart; Martinez-Sykora, Juan; Sechler, M. & Wang, X. (2011). TWO COMPONENTS OF THE SOLAR CORONAL EMISSION REVEALED BY EXTREME-ULTRAVIOLET SPECTROSCOPIC OBSERVATIONS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  738(1) . doi: 10.1088/0004-637X/738/1/18
  • Sykora, Juan Martinez; Hansteen, Viggo & Carlsson, Mats (2009). TWISTED FLUX TUBE EMERGENCE FROM THE CONVECTION ZONE TO THE CORONA. II. LATER STATES. Astrophysical Journal (ApJ).  ISSN 0004-637X.  702(1), s 129- 140 . doi: 10.1088/0004-637X/702/1/129
  • Sykora, Juan Martinez; Hansteen, Viggo; De Pontieu, Bart & Carlsson, Mats (2009). SPICULE-LIKE STRUCTURES OBSERVED IN THREE-DIMENSIONAL REALISTIC MAGNETOHYDRODYNAMIC SIMULATIONS. Astrophysical Journal (ApJ).  ISSN 0004-637X.  701(2), s 1569- 1581 . doi: 10.1088/0004-637X/701/2/1569

Se alle arbeider i Cristin

  • Martinez-Sykora, Juan (2019). Beyond single fluid or two fluids: Multi-component (multi-species) and multi fluid effects in the solar atmosphere.
  • Martinez-Sykora, Juan (2019). Ebysus: Multi-fluid & multi-species numerical code.
  • Martinez-Sykora, Juan (2019). Ebysus: a multi-fluid and multi-species numerical code: on coupling between ionized species.

Se alle arbeider i Cristin

Publisert 16. jan. 2020 11:58 - Sist endret 25. aug. 2020 13:06