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Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| VALD-3 binary record format (in February 2011 we decided to expand the level designation fields to 86 characters extending the total record length to 270 bytes): | = VALD Team internal pages = <<Include(FrontPageValdTeam, "Navigation Inside VALD", titlesonly)>> == VALD-3 binary record format == Total record length: 270 bytes |
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| || species || int*4 || || || VALD species code, see ~vald/data/VALD_list_of_species || | || species || int*4 || || || VALD species code, see [[VALD list of species]] || |
| Line 16: | Line 21: |
| || gamst || real*4 || (s*Ne)^-1|| 0 || log Quadratic Stark damping constant at l0000 K (per perturber) || || gamvw || real*4 || (s*NH)^-1|| 0 || log van der Waals damping constant at l0000 K (per perturber) || |
|| gamst || real*4 || (s*Ne)^-1|| 0 || log Quadratic Stark damping constant at l0000 K (where Ne is the electron number density) || || gamvw || real*4 || depends on value || 0 || van der Waals damping parameter: if <0: log gamma_6 in units of (s*NH)^-1 at l0000 K (where NH is the number density of neutral hydrogen); if >0 : two parameters as defined in Barklem et al. 2000A&AS..142..467B : integer part is cross-section sigma, fractional part is velocity parameter alpha || |
| Line 25: | Line 30: |
| || special flags || char*4 || || blank || Forbidden and cross-reference flags|| || || 1st byte|| || A || Autoionization transition|| || || || || B || Forbidden: Electric quadrupole transition|| || || || || C || Forbidden: Magnetic dipole transition|| || || || || D || Forbidden: Magnetic quadrupole transition|| || || 2nd byte|| || A || Extended van der Waals|| || || || || B || Extended Stark|| || || || || C || Extended van der Waals & Stark|| |
||Transition type || char*1 || || blank || Allowed transition|| || || || || A || Autoionizing transition|| || || || || B || Forbidden: Electric quadrupole transition (E2)|| || || || || C || Forbidden: Magnetic dipole transition (M1)|| || || || || D || Forbidden: Magnetic quadrupole transition (M2)|| || || || || E || Forbidden: Electric octupole transition (E3)|| || || || || F || Forbidden: Magnetic octupole transition (M3)|| ||Extra information || char*1 || || blank or 0 || No extended information|| || || || || 1 || Extended van der Waals|| || || || || 2 || Extended Stark|| || || || || 3 || Extended van der Waals & Stark|| || || || || 4 || Transition has hfs extension|| || || || || 5 || Extended van der Waals & hfs|| || || || || 6 || Extended Stark & hfs|| || || || || 7 || Extended van der Waals & Stark + hfs|| ||Not assigned || char*1 || || blank || Not used|| ||Not assigned || char*1 || || blank || Not used|| |
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| 'E' ... error in dex<<BR>> | An estimated accuracy is listed for each transition strength, indicated by a code letter as given in the table below: <<BR>> AAA ≤ 0.3%<<BR>> AA ≤ 1%<<BR>> A+ ≤ 2%<<BR>> A ≤ 3%<<BR>> B+ ≤ 7%<<BR>> B ≤ 10%<<BR>> C+ ≤ 18%<<BR>> C ≤ 25%<<BR>> D+ ≤ 40%<<BR>> D ≤ 50%<<BR>> E > 50%.<<BR>> 'E' ... absolute error in dex<<BR>> |
VALD Team internal pages
VALD-3 binary record format
Total record length: 270 bytes
Field short name |
Type |
Unit |
Default |
Description |
wl |
real*8 |
Å |
|
wavelength in vacuum |
species |
int*4 |
|
|
VALD species code, see VALD list of species |
loggf |
real*4 |
|
|
log statistical weight times oscillator strength |
e_low |
real*8 |
cm^-1 |
|
energy of the lower level |
j_low |
real*4 |
|
|
orbital quantum number for the lower level |
e_upp |
real*8 |
cm^-1 |
|
energy of the upper level |
j_upp |
real*4 |
|
|
orbital quantum number for the upper level |
lande_low |
real*4 |
|
99 |
Lande factor for the lower level |
lande_upp |
real*4 |
|
99 |
Lande factor for the upper level |
gamrad |
real*4 |
s^-1 |
0 |
log Radiative damping constant |
gamst |
real*4 |
(s*Ne)^-1 |
0 |
log Quadratic Stark damping constant at l0000 K (where Ne is the electron number density) |
gamvw |
real*4 |
depends on value |
0 |
van der Waals damping parameter: if <0: log gamma_6 in units of (s*NH)^-1 at l0000 K (where NH is the number density of neutral hydrogen); if >0 : two parameters as defined in Barklem et al. 2000A&AS..142..467B : integer part is cross-section sigma, fractional part is velocity parameter alpha |
term_flag_low |
char*2 |
|
blank |
level coupling type (e.g. LS) |
char*86 |
|
blank |
lower level term designation |
|
term_flag_upp |
char*2 |
|
blank |
level coupling type (e.g. LS) |
char*86 |
|
blank |
upper level term designation |
|
source |
char*7 |
|
blank |
reference to the oscillator strength source |
accuracy_flag |
char*1 |
|
blank |
type of the accuracy value (see below) |
accuracy |
char*6 |
|
blank |
accuracy of the oscillator strength |
Transition type |
char*1 |
|
blank |
Allowed transition |
|
|
|
A |
Autoionizing transition |
|
|
|
B |
Forbidden: Electric quadrupole transition (E2) |
|
|
|
C |
Forbidden: Magnetic dipole transition (M1) |
|
|
|
D |
Forbidden: Magnetic quadrupole transition (M2) |
|
|
|
E |
Forbidden: Electric octupole transition (E3) |
|
|
|
F |
Forbidden: Magnetic octupole transition (M3) |
Extra information |
char*1 |
|
blank or 0 |
No extended information |
|
|
|
1 |
Extended van der Waals |
|
|
|
2 |
Extended Stark |
|
|
|
3 |
Extended van der Waals & Stark |
|
|
|
4 |
Transition has hfs extension |
|
|
|
5 |
Extended van der Waals & hfs |
|
|
|
6 |
Extended Stark & hfs |
|
|
|
7 |
Extended van der Waals & Stark + hfs |
Not assigned |
char*1 |
|
blank |
Not used |
Not assigned |
char*1 |
|
blank |
Not used |
comment |
char*16 |
|
blank |
additional comments (e.g. wavelength accuracy) |
Notes:
Fields without Default value are mandatory.
accuracy_flag values:
' ' ... no value
'N' ... quality class (NIST)
- An estimated accuracy is listed for each transition strength, indicated by a code letter as given in the table below:
AAA ≤ 0.3%
AA ≤ 1%
A+ ≤ 2%
A ≤ 3%
B+ ≤ 7%
B ≤ 10%
C+ ≤ 18%
C ≤ 25%
D+ ≤ 40%
D ≤ 50%
E > 50%.
'E' ... absolute error in dex
'C' ... cancellation factor
'P' ... predicted line