Search Results - "Del Zanna, G."

CHIANTI—An Atomic Database for Emission Lines. XVI. Version 10, Further Extensions by Del Zanna, G., Dere, K. P., Young, P. R., Landi, E.

“…Abstract We present version 10 of the CHIANTI package. In this release, we provide updated atomic models for several helium-like ions and for all the ions of…”
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Modelling stellar irradiances I: the transition regions of FGKM stars by Deliporanidou, E, Del Zanna, G

“…ABSTRACT We employed advanced ionization equilibrium models that we developed in Dufresne et al. (2024), which include charge transfer and density effects, to…”
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CHIANTI—AN ATOMIC DATABASE FOR EMISSION LINES. XIII. SOFT X-RAY IMPROVEMENTS AND OTHER CHANGES by Landi, E, Young, P R, Dere, K P, DEL ZANNA, G, Mason, H E

“…The CHIANTI spectral code consists of two parts: an atomic database and a suite of computer programs in Python and IDL. Together, they allow the calculation of…”
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CHIANTI—An Atomic Database for Emission Lines. XVII. Version 10.1: Revised Ionization and Recombination Rates and Other Updates by Dere, Kenneth P., Del Zanna, G., Young, P. R., Landi, E.

“…Abstract The CHIANTI atomic database provides sets of assessed data that are used for simulating spectral observations of astrophysical plasmas. This article…”
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Helium line emissivities for nebular astrophysics by Del Zanna, G, Storey, P J

“…ABSTRACT We present the results of several collisional-radiative models describing optically thin emissivities of the main lines in neutral helium formed by…”
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Satellite lines from auto-ionizing states of Fe xvi and the problems with the X-ray Fe xvii lines by Del Zanna, G, Badnell, N R, Storey, P J

“…ABSTRACT We present new calculations of atomic data needed to model auto-ionizing states of Fe xvi. We compare the state energies, radiative and excitation…”
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SIMULTANEOUS IRIS AND HINODE/EIS OBSERVATIONS AND MODELING OF THE 2014 OCTOBER 27 X2.0 CLASS FLARE by Polito, V., Reep, J. W., Reeves, K. K., Simões, P. J. A., Dudík, J., Del Zanna, G., Mason, H. E., Golub, L.

“…ABSTRACT We present a study of the X2-class flare which occurred on 2014 October 27 and was observed with the Interface Region Imaging Spectrograph (IRIS) and…”
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JOINT HIGH TEMPERATURE OBSERVATION OF A SMALL C6.5 SOLAR FLARE WITH IRIS/EIS/AIA by Polito, V., Reeves, K. K., Zanna, G. Del, Golub, L., Mason, H. E.

“…ABSTRACT We present the observation of a C6.5 class flare on 2014 February 3, obtained with the Interface Region Imaging Spectrograph (IRIS) and the EUV…”
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CHIANTI—An Atomic Database for Emission Lines—Paper. XVIII. Version 11, Advanced Ionization Equilibrium Models: Density and Charge Transfer Effects by Dufresne, R. P., Del Zanna, G., Young, P. R., Dere, K. P., Deliporanidou, E., Barnes, W. T., Landi, E.

“…Abstract Version 11 of the chianti database and software package is presented. Advanced ionization equilibrium models have been added for low charge states of…”
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Chorus wave power at the strong diffusion limit overcomes electron losses due to strong diffusion by Daggitt, T. A., Horne, R. B., Glauert, S. A., Del Zanna, G., Albert, J. M.

“…Earth’s radiation belts consist of high-energy charged particles trapped by Earth’s magnetic field. Strong pitch angle diffusion of electrons caused by…”
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Multiwavelength Observations by XSM, Hinode, and SDO of an Active Region. Chemical Abundances and Temperatures by Zanna, G. Del, Mondal, B., Rao, Y. K., Mithun, N. P. S., Vadawale, S. V., Reeves, K. K., Mason, H. E., Sarkar, A., Janardhan, P., Bhardwaj, A.

“…Abstract We have reviewed the first year of observations of the Solar X-ray Monitor (XSM) on board Chandrayaan-2 and the available multiwavelength observations…”
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Coronal Diagnostics from Narrowband Images Around 30.4 nm by Andretta, V., Telloni, D., Del Zanna, G.

“…Images taken in the band centered at 30.4 nm are routinely used to map the radiance of the He  ii Ly α line on the solar disk. That line is one of the…”
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On the validity of the ICFT R-matrix method: Fe xiv by Del Zanna, G., Badnell, N. R., Fernández-Menchero, L., Liang, G. Y., Mason, H. E., Storey, P. J.

“…Recently, Aggarwal & Keenan published a Dirac R-matrix (darc) calculation for the electron-impact excitation of Fe xiv. A 136-level…”
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Advancing Solar and Heliospheric Science Through the Ongoing Development and Support of Atomic and Laboratory Plasma Physics by Rivera, Y J, Landi, E, Raymond, J C, Murphy, N A, Reep, J W, Barnes, W, Higginson, A, Young, P, Daw, A, Pesnell, W D, Paraschiv, A R, Lacatus, D A, Bryans, P, Chen, T Y, Zanna, G Del

“…This paper outlines the necessity for the availability, accessibility, and expansion of atomic physics data and analysis tools for the meaningful…”
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A Multi-Wavelength Study of the Compact M1 Flare on October 22, 2002 by Zanna, G Del, Berlicki, A, Schmieder, B, Mason, H E

“…In this paper we present a further study of the Ml class flare observed on October 22, 2002. We focus on the SOHO Coronal Diagnostic Spectrometer (CDS)…”
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A benchmark study of atomic models for the transition region against quiet Sun observations by Dufresne, R P, Del Zanna, G, Mason, H E

“…ABSTRACT The use of the coronal approximation to model line emission from the solar transition region has led to discrepancies with observations over many…”
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Effects of density on the oxygen ionization equilibrium in collisional plasmas by Dufresne, R P, Del Zanna, G, Badnell, N R

“…ABSTRACT The ion populations most frequently adopted for diagnostics in collisional plasmas are derived from the density independent coronal approximation. In…”
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Modelling low charge ions in the solar atmosphere by Dufresne, R P, Del Zanna, G, Storey, P J

“…ABSTRACT Extensions have been made recently to the coronal approximation for the purpose of modelling line emission from carbon and oxygen in the lower solar…”
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New atomic data for C i Rydberg states compared with solar UV spectra by Storey, P J, Dufresne, R P, Del Zanna, G

“…ABSTRACT We use the Breit–Pauli R-matrix method to calculate accurate energies and radiative data for states in C i up to n = 30 and with l ≤ 3. We provide the…”
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Are Coronal Loops Isothermal or Multithermal? by Schmelz, J. T, Nasraoui, K, Rightmire, L. A, Kimble, J. A, Zanna, G. Del, Cirtain, J. W, DeLuca, E. E, Mason, H. E

“…Surprisingly few solar coronal loops have been observed simultaneously with TRACE and SOHO/Coronal Diagnostics Spectrometer (CDS), and even fewer analyses of…”
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