J/MNRAS/503/1976ivo://CDS.VizieR/J/MNRAS/503/1976doi:10.26093/cds/vizier.75031976CDSDufresne R.P.Del Zanna G.Badnell N.R.2024-08-21T20:17:26Z2021-04-16T07:28:46ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsTo predict line emission in the solar atmosphere requires models which are fundamentally different depending on whether the emission is from the chromosphere or the corona. At some point between the two regions, there must be a change between the two modelling regimes. Recent extensions to the coronal modelling for carbon and oxygen lines in the solar transition region have shown improvements in the emission of singly- and doubly-charged ions, along with Li-like ions. However, discrepancies still remain, particularly for singly-charged ions and intercombination lines. The aim of this work is to explore additional atomic processes that could further alter the charge state distribution and the level populations within ions, in order to resolve some of the discrepancies. To this end, excitation and ionisation caused by both the radiation field and by atom-ion collisions have been included, along with recombination through charge transfer. The modelling is carried out using conditions which would be present in the quiet Sun, which allows an assessment of the part atomic processes play in changing coronal modelling, separately from dynamic and transient events taking place in the plasma. The effect the processes have on the fractional ion populations are presented, as well as the change in level populations brought about by the new excitation mechanisms. Contribution functions of selected lines from low charge states are also shown, to demonstrate the extent to which line emission in the lower atmosphere could be affected by the new modelling.2021MNRAS.503.1976Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/503/1976CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/503/1976https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/503/1976http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/503/1976https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/503/1976https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/503/1976http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/503/1976GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/503/1976/ct_tempsCharge transfer rate coefficient temperaturesTemp7Temperature 7Kphys.temperaturedoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTemp1Temperature 1Kphys.temperaturedoubleTemp2Temperature 2Kphys.temperaturedoubleTemp3Temperature 3Kphys.temperaturedoubleTemp4Temperature 4Kphys.temperaturedoubleTemp5Temperature 5Kphys.temperaturedoubleTemp6Temperature 6Kphys.temperaturedoubleTemp8Temperature 8Kphys.temperaturedoubleTemp9Temperature 9Kphys.temperaturedoubleTemp10Temperature 10Kphys.temperaturedoubleTemp11Temperature 11Kphys.temperaturedoubleTemp12Temperature 12Kphys.temperaturedoubleTemp13Temperature 13Kphys.temperaturedoubleTemp14Temperature 14Kphys.temperaturedoubleTemp15Temperature 15Kphys.temperaturedoubleTemp16Temperature 16Kphys.temperaturedoubleTemp17Temperature 17Kphys.temperaturedoubleTemp18Temperature 18Kphys.temperaturedoubleTemp19Temperature 19Kphys.temperaturedoubleTemp20Temperature 20Kphys.temperaturedoubleTemp21Temperature 21Kphys.temperaturedoubleJ/MNRAS/503/1976/ct_ratesCharge transfer rate coefficientsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElAtomic number of elementphys.atmol.elementintIionNumber of electrons in initial ionmeta.numberintItermConfiguration and term of initial statephys.atmol.configurationcharFionNumber of electrons in final ionmeta.numberintFtermConfiguration and term of final statephys.atmol.configurationcharZpertAtomic number of perturberphys.atmol.numberintPionNumber of electrons in perturber initial statemeta.numberintRate1Rate coefficient at Temp1 (T=1.00E+03K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate2Rate coefficient at Temp2 (T=2.00E+03K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate3Rate coefficient at Temp3 (T=4.00E+03K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate4Rate coefficient at Temp4 (T=6.00E+03K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate5Rate coefficient at Temp5 (T=8.00E+03K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate6Rate coefficient at Temp6 (T=1.00E+04K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate7Rate coefficient at Temp7 (T=2.00E+04K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate8Rate coefficient at Temp8 (T=4.00E+04K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate9Rate coefficient at Temp9 (T=6.00E+04K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate10Rate coefficient at Temp10 (T=8.00E+04K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate11Rate coefficient at Temp11 (T=1.00E+05K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate12Rate coefficient at Temp12 (T=2.00E+05K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate13Rate coefficient at Temp13 (T=4.00E+05K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate14Rate coefficient at Temp14 (T=6.00E+05K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate15Rate coefficient at Temp15 (T=8.00E+05K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate16Rate coefficient at Temp16 (T=1.00E+06K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate17Rate coefficient at Temp17 (T=2.00E+06K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate18Rate coefficient at Temp18 (T=4.00E+06K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate19Rate coefficient at Temp19 (T=6.00E+06K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate20Rate coefficient at Temp20 (T=8.00E+06K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleRate21Rate coefficient at Temp21 (T=1.00E+07K)cm**3.s**-1arith.rate;phys.atmol.collisionaldoubleJ/MNRAS/503/1976/tempionsTemperatures for ion fractional populationsTemp29Log temperature 29Kphys.temperaturefloatTemp30Log temperature 30Kphys.temperaturefloatTemp31Log temperature 31Kphys.temperaturefloatTemp32Log temperature 32Kphys.temperaturefloatTemp33Log temperature 33Kphys.temperaturefloatTemp34Log temperature 34Kphys.temperaturefloatTemp35Log temperature 35Kphys.temperaturefloatTemp36Log temperature 36Kphys.temperaturefloatTemp37Log temperature 37Kphys.temperaturefloatTemp38Log temperature 38Kphys.temperaturefloatTemp39Log temperature 39Kphys.temperaturefloatTemp40Log temperature 40Kphys.temperaturefloatTemp41Log temperature 41Kphys.temperaturefloatTemp42Log temperature 42Kphys.temperaturefloatTemp43Log temperature 43Kphys.temperaturefloatTemp44Log temperature 44Kphys.temperaturefloatTemp45Log temperature 45Kphys.temperaturefloatTemp46Log temperature 46Kphys.temperaturefloatTemp47Log temperature 47Kphys.temperaturefloatTemp48Log temperature 48Kphys.temperaturefloatTemp49Log temperature 49Kphys.temperaturefloatTemp50Log temperature 50Kphys.temperaturefloatTemp51Log temperature 51Kphys.temperaturefloatTemp52Log temperature 52Kphys.temperaturefloatTemp53Log temperature 53Kphys.temperaturefloatTemp54Log temperature 54Kphys.temperaturefloatTemp55Log temperature 55Kphys.temperaturefloatTemp56Log temperature 56Kphys.temperaturefloatTemp57Log temperature 57Kphys.temperaturefloatTemp58Log temperature 58Kphys.temperaturefloatTemp59Log temperature 59Kphys.temperaturefloatTemp60Log temperature 60Kphys.temperaturefloatTemp61Log temperature 61Kphys.temperaturefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTemp1Log temperature 1Kphys.temperaturefloatTemp2Log temperature 2Kphys.temperaturefloatTemp3Log temperature 3Kphys.temperaturefloatTemp4Log temperature 4Kphys.temperaturefloatTemp5Log temperature 5Kphys.temperaturefloatTemp6Log temperature 6Kphys.temperaturefloatTemp7Log temperature 7Kphys.temperaturefloatTemp8Log temperature 8Kphys.temperaturefloatTemp9Log temperature 9Kphys.temperaturefloatTemp10Log temperature 10Kphys.temperaturefloatTemp11Log temperature 11Kphys.temperaturefloatTemp12Log temperature 12Kphys.temperaturefloatTemp13Log temperature 13Kphys.temperaturefloatTemp14Log temperature 14Kphys.temperaturefloatTemp15Log temperature 15Kphys.temperaturefloatTemp16Log temperature 16Kphys.temperaturefloatTemp17Log temperature 17Kphys.temperaturefloatTemp18Log temperature 18Kphys.temperaturefloatTemp19Log temperature 19Kphys.temperaturefloatTemp20Log temperature 20Kphys.temperaturefloatTemp21Log temperature 21Kphys.temperaturefloatTemp22Log temperature 22Kphys.temperaturefloatTemp23Log temperature 23Kphys.temperaturefloatTemp24Log temperature 24Kphys.temperaturefloatTemp25Log temperature 25Kphys.temperaturefloatTemp26Log temperature 26Kphys.temperaturefloatTemp27Log temperature 27Kphys.temperaturefloatTemp28Log temperature 28Kphys.temperaturefloatJ/MNRAS/503/1976/co_pictIon fractional populations at constant pressurePop28Ion fractional population at Temp28, logTemp28=4.85phys.abunddoublePop29Ion fractional population at Temp29, logTemp29=4.90phys.abunddoublePop30Ion fractional population at Temp30, logTemp30=4.95phys.abunddoublePop31Ion fractional population at Temp31, logTemp31=5.00phys.abunddoublePop32Ion fractional population at Temp32, logTemp32=5.05phys.abunddoublePop33Ion fractional population at Temp33, logTemp33=5.10phys.abunddoublePop34Ion fractional population at Temp34, logTemp34=5.15phys.abunddoublePop35Ion fractional population at Temp35, logTemp35=5.20phys.abunddoublePop36Ion fractional population at Temp36, logTemp36=5.25phys.abunddoublePop37Ion fractional population at Temp37, logTemp37=5.30phys.abunddoublePop38Ion fractional population at Temp38, logTemp38=5.35phys.abunddoublePop39Ion fractional population at Temp39, logTemp39=5.40phys.abunddoublePop40Ion fractional population at Temp40, logTemp40=5.45phys.abunddoublePop41Ion fractional population at Temp41, logTemp41=5.50phys.abunddoublePop42Ion fractional population at Temp42, logTemp42=5.55phys.abunddoublePop43Ion fractional population at Temp43, logTemp43=5.60phys.abunddoublePop44Ion fractional population at Temp44, logTemp44=5.65phys.abunddoublePop45Ion fractional population at Temp45, logTemp45=5.70phys.abunddoublePop46Ion fractional population at Temp46, logTemp46=5.75phys.abunddoublePop47Ion fractional population at Temp47, logTemp47=5.80phys.abunddoublePop48Ion fractional population at Temp48, logTemp48=5.85phys.abunddoublePop49Ion fractional population at Temp49, logTemp49=5.90phys.abunddoublePop50Ion fractional population at Temp50, logTemp50=5.95phys.abunddoublePop51Ion fractional population at Temp51, logTemp51=6.00phys.abunddoublePop52Ion fractional population at Temp52, logTemp52=6.05phys.abunddoublePop53Ion fractional population at Temp53, logTemp53=6.10phys.abunddoublePop54Ion fractional population at Temp54, logTemp54=6.15phys.abunddoublePop55Ion fractional population at Temp55, logTemp55=6.20phys.abunddoublePop56Ion fractional population at Temp56, logTemp56=6.25phys.abunddoublePop57Ion fractional population at Temp57, logTemp57=6.30phys.abunddoublePop58Ion fractional population at Temp58, logTemp58=6.35phys.abunddoublePop59Ion fractional population at Temp59, logTemp59=6.40phys.abunddoublePop60Ion fractional population at Temp60, logTemp50=6.45phys.abunddoublePop61Ion fractional population at Temp61, logTemp61=6.50phys.abunddoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZAtomic number of elementphys.atmol.elementintNEffective charge of ionphys.atmol.ionStageintPop1Ion fractional population at Temp1, logTemp1=3.50phys.abunddoublePop2Ion fractional population at Temp2, logTemp2=3.55phys.abunddoublePop3Ion fractional population at Temp3, logTemp3=3.60phys.abunddoublePop4Ion fractional population at Temp4, logTemp4=3.65phys.abunddoublePop5Ion fractional population at Temp5, logTemp5=3.70phys.abunddoublePop6Ion fractional population at Temp6, logTemp6=3.75phys.abunddoublePop7Ion fractional population at Temp7, logTemp7=3.80phys.abunddoublePop8Ion fractional population at Temp8, logTemp8=3.85phys.abunddoublePop9Ion fractional population at Temp9, logTemp9=3.90phys.abunddoublePop10Ion fractional population at Temp10, logTemp10=3.95phys.abunddoublePop11Ion fractional population at Temp11, logTemp11=4.00phys.abunddoublePop12Ion fractional population at Temp12, logTemp12=4.05phys.abunddoublePop13Ion fractional population at Temp13, logTemp13=4.10phys.abunddoublePop14Ion fractional population at Temp14, logTemp14=4.15phys.abunddoublePop15Ion fractional population at Temp15, logTemp15=4.20phys.abunddoublePop16Ion fractional population at Temp16, logTemp16=4.25phys.abunddoublePop17Ion fractional population at Temp17, logTemp17=4.30phys.abunddoublePop18Ion fractional population at Temp18, logTemp18=4.35phys.abunddoublePop19Ion fractional population at Temp19, logTemp19=4.40phys.abunddoublePop20Ion fractional population at Temp20, logTemp20=4.45phys.abunddoublePop21Ion fractional population at Temp21, logTemp21=4.50phys.abunddoublePop22Ion fractional population at Temp22, logTemp22=4.55phys.abunddoublePop23Ion fractional population at Temp23, logTemp23=4.60phys.abunddoublePop24Ion fractional population at Temp24, logTemp24=4.65phys.abunddoublePop25Ion fractional population at Temp25, logTemp25=4.70phys.abunddoublePop26Ion fractional population at Temp26, logTemp26=4.75phys.abunddoublePop27Ion fractional population at Temp27, logTemp27=4.80phys.abunddouble