Signatures of the non-Maxwellian kappa-distributions in optically thin line spectra II. Synthetic Fe XVII-XVIII X-ray coronal spectra and predictions for the Marshall Grazing-Incidence X-ray Spectrometer (MaGIXS)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00511040" target="_blank" >RIV/67985815:_____/19:00511040 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1051/0004-6361/201935285" target="_blank" >https://doi.org/10.1051/0004-6361/201935285</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201935285" target="_blank" >10.1051/0004-6361/201935285</a>

Result language

angličtina

Original language name

Signatures of the non-Maxwellian kappa-distributions in optically thin line spectra II. Synthetic Fe XVII-XVIII X-ray coronal spectra and predictions for the Marshall Grazing-Incidence X-ray Spectrometer (MaGIXS)

Original language description

We investigated the possibility of diagnosing the degree of departure from the Maxwellian distribution using the Fe XVII-Fe XVIII spectra originating in plasmas in collisional ionization equilibrium, such as in the cores of solar active regions or microflares. We find that many line intensity ratios are sensitive to both T and kappa. Best diagnostic options are provided if a ratio involving both Fe XVII and Fe XVIII is combined with another ratio involving lines formed within a single ion. The sensitivity of such diagnostics to kappa is typically a few tens of per cent. Much larger sensitivity, of about a factor of two to three, can be obtained if the Fe XVIII 93.93 angstrom line observed by SDO/AIA is used in conjuction with the X-ray lines.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Volume of the periodical

626

Issue of the periodical within the volume

June

Country of publishing house

FR - FRANCE

Number of pages

15

Pages from-to

A88

UT code for WoS article

000471838800007

EID of the result in the Scopus database

2-s2.0-85068334594