# Information on Service 'TheoSSA - Theoretical Stellar Spectra Access'

Further access options are discussed below

TheoSSA provides spectral energy distributions based on model atmosphere calculations. Currently, we serve results obtained using the Tübingen NLTE Model Atmosphere Package (TMAP) for hot compact stars.

For a list of all services and tables belonging to this service's resource, see Information on resource 'TheoSSA - Theoretical Stellar Spectra Access'

## Service Documentation

SSA services are particularly well suited for programmatic access. Here is a sample program using pyVO and astropy to plot a T_eff grid:

```from astropy.table import Table
import pyvo
import numpy as np

TEFF_SCALER = 200.

def _wiggle(val):
"""returns a +/- 2% range for the float val in SSAP syntax.
"""
if val is not None:
return "%s/%s"%(val*0.98, val*1.02)

def discover_spectra(teff=None, logg=None, **elements):
"""returns a pyvo result for spectra with teff, logg, and given abundances.

Each argument, when given, must be a float.  The function "wiggles"
them by +/- 10%.
"""
pars = {"format": "votable"}
pars["t_eff"] = _wiggle(teff)
pars["log_g"] = _wiggle(logg)
for el, abundance in elements.items():
pars["w_%s"%el] = _wiggle(abundance)

svc = pyvo.dal.SSAService("http://dc.g-vo.org/theossa/q/ssa/ssap.xml")
return svc.create_query(**pars).execute()

def plot_spectrum(ax, spectrum):
"""plots spectrum (an SSA result from theossa) into fig, offset by teff,
into the matplotlib axes ax.
"""
teff = spectrum.get("t_eff")
ax.plot(t["spectral"], np.log(t["flux"])+teff/TEFF_SCALER)
ax.text(max(t["spectral"]), teff/TEFF_SCALER, str(teff),
horizontalalignment="right")

def make_plot(spectra):
"""arranges spectra in a plot, showing evolution by teff.
"""
from matplotlib import pyplot
fig = pyplot.figure(figsize=(4,6))

for sp in spectra:
plot_spectrum(ax, sp)

with open("combined.pdf", "wb") as f:
pyplot.savefig(f, format="pdf")

if __name__=="__main__":
specs = discover_spectra(logg=6, C=0.0034, He=0.284, H=0.715)
make_plot(specs)
```

## Overview

You can access this service using:

• form -- an interface for web browsers through an HTML form
• ssap.xml -- a standard SSAP interface as defined by the IVOA to access spectral or time-series data; SSAP clients use https://dc.zah.uni-heidelberg.de/theossa/q/ssa/ssap.xml? to access the service

This service is published as follows:

• Within the set(s) ivo_managed with the renderer dali
• Within the set(s) ivo_managed with the renderer ssap.xml

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

## Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

APERTURE Aperture Angular diameter of aperture deg phys.angSize;instr.fov
BAND Band Wavelength (range) of interest (or symbolic bandpass names) m N/A
COLLECTION Collection A short handle naming the collection this spectrum belongs to. N/A N/A
COMPRESS Compress? Return compressed results? N/A N/A
CREATORDID C. DID Dataset identifier assigned by the creator N/A meta.id
FLUXCALIB Calib Flux Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). N/A N/A
FORMAT Type MIME type of the file served N/A meta.code.mime
log_g Log Grav. Log of surface gravity assumed cm/s**2 phys.gravity
maxrec Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
mdot Mass loss rate Mass loss rate solMass/yr phys.mass.loss
MTIME Pub. Date Date last published. N/A N/A
POS Pos ICRS position of target object deg N/A
PUBDID P. DID Dataset identifier assigned by the publisher N/A N/A
REDSHIFT z Redshift of target object N/A src.redshift
REQUEST Request type This is queryData for the default operation; some services support getData as well N/A N/A
responseformat Output Format File format requested for output. N/A meta.code.mime
RUNID Run id An identifier for a certain run. Opaque to the service N/A N/A
SIZE Size Size of the region of interest around POS deg N/A
SNR SNR Signal-to-noise ratio estimated for this dataset N/A stat.snr
SPATRES Res. Spc Spatial resolution of data deg pos.angResolution
SPECRP Specrp Lower limit to spectral resolution power (λ/Δλ) as a single number. N/A N/A
t_eff Eff. Temp. Effective temperature assumed K phys.temperature.effective
TARGETCLASS Ob. cls Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) N/A src.class
TARGETNAME Object Common name of object observed. N/A meta.id;src
TIME Date Obs. Midpoint of exposure (MJD) N/A time.epoch
TOP #Best Only return the TOP "best" records (on this service, this usually is equivalent to MAXREC, so no ranking is implied). N/A N/A
verb Verbosity Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns. N/A N/A
w_Al Al Mass fraction of Al in the model computed. N/A phys.abund
w_Ar Ar Mass fraction of Ar in the model computed. N/A phys.abund
w_B B Mass fraction of B in the model computed. N/A phys.abund
w_Ba Ba Mass fraction of Ba in the model computed. N/A phys.abund
w_Be Be Mass fraction of Be in the model computed. N/A phys.abund
w_C C Mass fraction of C in the model computed. N/A phys.abund
w_Ca Ca Mass fraction of Ca in the model computed. N/A phys.abund
w_Cl Cl Mass fraction of Cl in the model computed. N/A phys.abund
w_Co Co Mass fraction of Co in the model computed. N/A phys.abund
w_Cr Cr Mass fraction of Cr in the model computed. N/A phys.abund
w_F F Mass fraction of F in the model computed. N/A phys.abund
w_Fe Fe Mass fraction of Fe in the model computed. N/A phys.abund
w_Ga Ga Mass fraction of Ga in the model computed. N/A phys.abund
w_Ge Ge Mass fraction of Ge in the model computed. N/A phys.abund
w_H H Mass fraction of H in the model computed. N/A phys.abund
w_He He Mass fraction of He in the model computed. N/A phys.abund
w_K K Mass fraction of K in the model computed. N/A phys.abund
w_Kr Kr Mass fraction of Kr in the model computed. N/A phys.abund
w_Li Li Mass fraction of Li in the model computed. N/A phys.abund
w_Mg Mg Mass fraction of Mg in the model computed. N/A phys.abund
w_Mn Mn Mass fraction of Mn in the model computed. N/A phys.abund
w_Mo Mo Mass fraction of Mo in the model computed. N/A phys.abund
w_N N Mass fraction of N in the model computed. N/A phys.abund
w_Na Na Mass fraction of Na in the model computed. N/A phys.abund
w_Ne Ne Mass fraction of Ne in the model computed. N/A phys.abund
w_Ni Ni Mass fraction of Ni in the model computed. N/A phys.abund
w_O O Mass fraction of O in the model computed. N/A phys.abund
w_P P Mass fraction of P in the model computed. N/A phys.abund
w_S S Mass fraction of S in the model computed. N/A phys.abund
w_Sc Sc Mass fraction of Sc in the model computed. N/A phys.abund
w_Si Si Mass fraction of Si in the model computed. N/A phys.abund
w_Sn Sn Mass fraction of Sn in the model computed. N/A phys.abund
w_Tc Tc Mass fraction of Tc in the model computed. N/A phys.abund
w_Ti Ti Mass fraction of Ti in the model computed. N/A phys.abund
w_V V Mass fraction of V in the model computed. N/A phys.abund
w_Xe Xe Mass fraction of Xe in the model computed. N/A phys.abund
w_Zn Zn Mass fraction of Zn in the model computed. N/A phys.abund
WAVECALIB Calib. Spect. Type of wavelength calibration N/A meta.code.qual
WILDTARGET Name Pattern Shell pattern of target observed (case insensitive) N/A N/A
WILDTARGETCASE Name Pattern Shell pattern of target observed (case sensitive) N/A N/A

## Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

accref Product key Access key for the data N/A meta.ref.url;meta.dataset
accsize File size Size of the data in bytes byte N/A
location_dec Dec N/A deg pos.eq.dec;meta.main
location_ra RA N/A deg pos.eq.ra;meta.main
log_g Log Grav. Log of surface gravity assumed cm/s**2 phys.gravity
mdot Mass loss rate Mass loss rate solMass/yr phys.mass.loss
mime Type MIME type of the file served N/A meta.code.mime
preview Preview URL of a preview for the dataset N/A meta.ref.url;datalink.preview
ssa_aperture Aperture Angular diameter of aperture deg phys.angSize;instr.fov
ssa_bandpass Bandpass Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger. N/A instr.bandpass
ssa_binSize Spect. Bin Bin size in wavelength m em.wl;spect.binSize
ssa_cdate Proc. Date Processing/Creation date N/A time;meta.dataset
ssa_collection Collection A short handle naming the collection this spectrum belongs to. N/A N/A
ssa_creationtype Using Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction) N/A N/A
ssa_creator Creator Creator of the datasets included here. N/A N/A
ssa_creatorDID C. DID Dataset identifier assigned by the creator N/A meta.id
ssa_csysName Sys System RA and Dec are given in N/A N/A
ssa_cversion C. Version Creator assigned version for this dataset (will be incremented when this particular item is changed). N/A meta.version;meta.dataset
ssa_datasource Src Method of generation for the data (one of survey, pointed, theory, custom, artificial). N/A N/A
ssa_dateObs Date Obs. Midpoint of exposure (MJD) d time.epoch
ssa_dstitle Title A compact and descriptive designation of the dataset. N/A meta.title;meta.dataset
ssa_dstype Data type Type of data (spectrum, time series, etc) N/A N/A
ssa_fluxcalib Calib Flux Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). N/A N/A
ssa_fluxSI [Flux] Flux/magnitude conversion factor in Osuna-Salgado convention N/A N/A
ssa_fluxStatError Err. flux Statistical error in flux N/A stat.error;phot.flux.density;em
ssa_fluxSysError Sys. Err flux Systematic error in flux N/A stat.error.sys;phot.flux.density;em
ssa_fluxucd UCD(flux) UCD of the flux column N/A meta.ucd
ssa_fluxunit unit(flux) Unit of the flux column N/A meta.unit
ssa_instrument Instrument Instrument or code used to produce these datasets N/A meta.id;instr
ssa_length Length Number of points in the spectrum N/A N/A
ssa_location Location ICRS location of aperture center deg pos.eq
ssa_model Model Data model name and version N/A N/A
ssa_pdate Pub. Date Date last published. N/A N/A
ssa_pubDID P. DID Dataset identifier assigned by the publisher N/A N/A
ssa_publisher Publisher Publisher of the datasets included here. N/A meta.curation
ssa_redshift z Redshift of target object N/A src.redshift
ssa_reference Ref. URL or bibcode of a publication describing this data. N/A meta.bib.bibcode
ssa_score Score A measure of how closely the record matches your query. Higher numbers mean better matches. N/A N/A
ssa_snr SNR Signal-to-noise ratio estimated for this dataset N/A stat.snr
ssa_spaceCalib Calib. Spc Type of calibration in spatial coordinates N/A meta.code.qual
ssa_spaceError Err. Spc Statistical error in position deg stat.error;pos.eq
ssa_spaceRes Res. Spc Spatial resolution of data deg pos.angResolution
ssa_speccalib Calib. Spect. Type of wavelength calibration N/A meta.code.qual
ssa_specend Band end Upper value of spectral coordinate m em.wl;stat.max
ssa_specext Bandwidth Width of the spectrum m em.wl;instr.bandwidth
ssa_specmid Mid. Band Midpoint of region covered in this dataset m em.wl;instr.bandpass
ssa_specres Spec. Res. Resolution (in meters of wavelength) on the spectral axis m spect.resolution;em.wl
ssa_specstart Band start Lower value of spectral coordinate m em.wl;stat.min
ssa_spectralSI [Spectral] Spectral conversion factor in Osuna-Salgado convention N/A N/A
ssa_spectralucd UCD(spectral) UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths. N/A meta.ucd
ssa_spectralunit unit(spectral) Unit of the spectral column N/A meta.unit
ssa_spectStatError Err. Spect Statistical error in wavelength m stat.error;em
ssa_spectSysError Sys. Err. Spect Systematic error in wavelength m stat.error.sys;em
ssa_targclass Ob. cls Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) N/A src.class
ssa_targetpos Obj. pos Equatorial (ICRS) position of the target object. N/A pos.eq;src
ssa_targname Object Common name of object observed. N/A meta.id;src
ssa_timeExt Exp. Time Exposure duration s time.duration
ssa_timeSI [Time] Time conversion factor in Osuna-Salgado convention. N/A N/A
t_eff Eff. Temp. Effective temperature assumed K phys.temperature.effective
w_Al Al Mass fraction of Al in the model computed. N/A phys.abund
w_Ar Ar Mass fraction of Ar in the model computed. N/A phys.abund
w_B B Mass fraction of B in the model computed. N/A phys.abund
w_Ba Ba Mass fraction of Ba in the model computed. N/A phys.abund
w_Be Be Mass fraction of Be in the model computed. N/A phys.abund
w_C C Mass fraction of C in the model computed. N/A phys.abund
w_Ca Ca Mass fraction of Ca in the model computed. N/A phys.abund
w_Cl Cl Mass fraction of Cl in the model computed. N/A phys.abund
w_Co Co Mass fraction of Co in the model computed. N/A phys.abund
w_Cr Cr Mass fraction of Cr in the model computed. N/A phys.abund
w_F F Mass fraction of F in the model computed. N/A phys.abund
w_Fe Fe Mass fraction of Fe in the model computed. N/A phys.abund
w_Ga Ga Mass fraction of Ga in the model computed. N/A phys.abund
w_Ge Ge Mass fraction of Ge in the model computed. N/A phys.abund
w_H H Mass fraction of H in the model computed. N/A phys.abund
w_He He Mass fraction of He in the model computed. N/A phys.abund
w_K K Mass fraction of K in the model computed. N/A phys.abund
w_Kr Kr Mass fraction of Kr in the model computed. N/A phys.abund
w_Li Li Mass fraction of Li in the model computed. N/A phys.abund
w_Mg Mg Mass fraction of Mg in the model computed. N/A phys.abund
w_Mn Mn Mass fraction of Mn in the model computed. N/A phys.abund
w_Mo Mo Mass fraction of Mo in the model computed. N/A phys.abund
w_N N Mass fraction of N in the model computed. N/A phys.abund
w_Na Na Mass fraction of Na in the model computed. N/A phys.abund
w_Ne Ne Mass fraction of Ne in the model computed. N/A phys.abund
w_Ni Ni Mass fraction of Ni in the model computed. N/A phys.abund
w_O O Mass fraction of O in the model computed. N/A phys.abund
w_P P Mass fraction of P in the model computed. N/A phys.abund
w_S S Mass fraction of S in the model computed. N/A phys.abund
w_Sc Sc Mass fraction of Sc in the model computed. N/A phys.abund
w_Si Si Mass fraction of Si in the model computed. N/A phys.abund
w_Sn Sn Mass fraction of Sn in the model computed. N/A phys.abund
w_Tc Tc Mass fraction of Tc in the model computed. N/A phys.abund
w_Ti Ti Mass fraction of Ti in the model computed. N/A phys.abund
w_V V Mass fraction of V in the model computed. N/A phys.abund
w_Xe Xe Mass fraction of Xe in the model computed. N/A phys.abund
w_Zn Zn Mass fraction of Zn in the model computed. N/A phys.abund

## VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

accref Product key Access key for the data N/A meta.ref.url;meta.dataset 1
ssa_location Location ICRS location of aperture center deg pos.eq 5
ssa_dateObs Date Obs. Midpoint of exposure (MJD) d time.epoch 5
ssa_timeExt Exp. Time Exposure duration s time.duration 5
ssa_length Length Number of points in the spectrum N/A N/A 5
t_eff Eff. Temp. Effective temperature assumed K phys.temperature.effective 9
log_g Log Grav. Log of surface gravity assumed cm/s**2 phys.gravity 9
mdot Mass loss rate Mass loss rate solMass/yr phys.mass.loss 9
accsize File size Size of the data in bytes byte N/A 11
ssa_score Score A measure of how closely the record matches your query. Higher numbers mean better matches. N/A N/A 15
location_ra RA N/A deg pos.eq.ra;meta.main 15
location_dec Dec N/A deg pos.eq.dec;meta.main 15
ssa_dstitle Title A compact and descriptive designation of the dataset. N/A meta.title;meta.dataset 15
ssa_creatorDID C. DID Dataset identifier assigned by the creator N/A meta.id 15
ssa_pubDID P. DID Dataset identifier assigned by the publisher N/A N/A 15
ssa_cdate Proc. Date Processing/Creation date N/A time;meta.dataset 15
ssa_pdate Pub. Date Date last published. N/A N/A 15
ssa_bandpass Bandpass Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger. N/A instr.bandpass 15
ssa_cversion C. Version Creator assigned version for this dataset (will be incremented when this particular item is changed). N/A meta.version;meta.dataset 15
ssa_targname Object Common name of object observed. N/A meta.id;src 15
ssa_targclass Ob. cls Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) N/A src.class 15
ssa_redshift z Redshift of target object N/A src.redshift 15
ssa_targetpos Obj. pos Equatorial (ICRS) position of the target object. N/A pos.eq;src 15
ssa_snr SNR Signal-to-noise ratio estimated for this dataset N/A stat.snr 15
ssa_aperture Aperture Angular diameter of aperture deg phys.angSize;instr.fov 15
ssa_specmid Mid. Band Midpoint of region covered in this dataset m em.wl;instr.bandpass 15
ssa_specext Bandwidth Width of the spectrum m em.wl;instr.bandwidth 15
ssa_specstart Band start Lower value of spectral coordinate m em.wl;stat.min 15
ssa_specend Band end Upper value of spectral coordinate m em.wl;stat.max 15
ssa_csysName Sys System RA and Dec are given in N/A N/A 15
ssa_spectralucd UCD(spectral) UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths. N/A meta.ucd 15
ssa_spectralunit unit(spectral) Unit of the spectral column N/A meta.unit 15
ssa_fluxucd UCD(flux) UCD of the flux column N/A meta.ucd 15
ssa_fluxunit unit(flux) Unit of the flux column N/A meta.unit 15
ssa_publisher Publisher Publisher of the datasets included here. N/A meta.curation 15
ssa_creator Creator Creator of the datasets included here. N/A N/A 15
ssa_collection Collection A short handle naming the collection this spectrum belongs to. N/A N/A 15
ssa_instrument Instrument Instrument or code used to produce these datasets N/A meta.id;instr 15
ssa_datasource Src Method of generation for the data (one of survey, pointed, theory, custom, artificial). N/A N/A 15
ssa_creationtype Using Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction) N/A N/A 15
ssa_reference Ref. URL or bibcode of a publication describing this data. N/A meta.bib.bibcode 15
ssa_fluxStatError Err. flux Statistical error in flux N/A stat.error;phot.flux.density;em 15
ssa_fluxSysError Sys. Err flux Systematic error in flux N/A stat.error.sys;phot.flux.density;em 15
ssa_fluxcalib Calib Flux Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). N/A N/A 15
ssa_binSize Spect. Bin Bin size in wavelength m em.wl;spect.binSize 15
ssa_spectStatError Err. Spect Statistical error in wavelength m stat.error;em 15
ssa_spectSysError Sys. Err. Spect Systematic error in wavelength m stat.error.sys;em 15
ssa_speccalib Calib. Spect. Type of wavelength calibration N/A meta.code.qual 15
ssa_specres Spec. Res. Resolution (in meters of wavelength) on the spectral axis m spect.resolution;em.wl 15
ssa_spaceError Err. Spc Statistical error in position deg stat.error;pos.eq 15
ssa_spaceCalib Calib. Spc Type of calibration in spatial coordinates N/A meta.code.qual 15
ssa_spaceRes Res. Spc Spatial resolution of data deg pos.angResolution 15
preview Preview URL of a preview for the dataset N/A meta.ref.url;datalink.preview 15
w_H H Mass fraction of H in the model computed. N/A phys.abund 19
w_He He Mass fraction of He in the model computed. N/A phys.abund 19
w_Li Li Mass fraction of Li in the model computed. N/A phys.abund 19
w_Be Be Mass fraction of Be in the model computed. N/A phys.abund 19
w_B B Mass fraction of B in the model computed. N/A phys.abund 19
w_C C Mass fraction of C in the model computed. N/A phys.abund 19
w_N N Mass fraction of N in the model computed. N/A phys.abund 19
w_O O Mass fraction of O in the model computed. N/A phys.abund 19
w_F F Mass fraction of F in the model computed. N/A phys.abund 19
w_Ne Ne Mass fraction of Ne in the model computed. N/A phys.abund 19
w_Na Na Mass fraction of Na in the model computed. N/A phys.abund 19
w_Mg Mg Mass fraction of Mg in the model computed. N/A phys.abund 19
w_Al Al Mass fraction of Al in the model computed. N/A phys.abund 19
w_Si Si Mass fraction of Si in the model computed. N/A phys.abund 19
w_P P Mass fraction of P in the model computed. N/A phys.abund 19
w_S S Mass fraction of S in the model computed. N/A phys.abund 19
w_Cl Cl Mass fraction of Cl in the model computed. N/A phys.abund 19
w_Ar Ar Mass fraction of Ar in the model computed. N/A phys.abund 19
w_K K Mass fraction of K in the model computed. N/A phys.abund 19
w_Ca Ca Mass fraction of Ca in the model computed. N/A phys.abund 19
w_Sc Sc Mass fraction of Sc in the model computed. N/A phys.abund 19
w_Ti Ti Mass fraction of Ti in the model computed. N/A phys.abund 19
w_V V Mass fraction of V in the model computed. N/A phys.abund 19
w_Cr Cr Mass fraction of Cr in the model computed. N/A phys.abund 19
w_Mn Mn Mass fraction of Mn in the model computed. N/A phys.abund 19
w_Fe Fe Mass fraction of Fe in the model computed. N/A phys.abund 19
w_Co Co Mass fraction of Co in the model computed. N/A phys.abund 19
w_Ni Ni Mass fraction of Ni in the model computed. N/A phys.abund 19
w_Zn Zn Mass fraction of Zn in the model computed. N/A phys.abund 19
w_Ga Ga Mass fraction of Ga in the model computed. N/A phys.abund 19
w_Ge Ge Mass fraction of Ge in the model computed. N/A phys.abund 19
w_Kr Kr Mass fraction of Kr in the model computed. N/A phys.abund 19
w_Mo Mo Mass fraction of Mo in the model computed. N/A phys.abund 19
w_Tc Tc Mass fraction of Tc in the model computed. N/A phys.abund 19
w_Sn Sn Mass fraction of Sn in the model computed. N/A phys.abund 19
w_Xe Xe Mass fraction of Xe in the model computed. N/A phys.abund 19
w_Ba Ba Mass fraction of Ba in the model computed. N/A phys.abund 19
mime Type MIME type of the file served N/A meta.code.mime 20
ssa_model Model Data model name and version N/A N/A 20
ssa_timeSI [Time] Time conversion factor in Osuna-Salgado convention. N/A N/A 20
ssa_spectralSI [Spectral] Spectral conversion factor in Osuna-Salgado convention N/A N/A 20
ssa_fluxSI [Flux] Flux/magnitude conversion factor in Osuna-Salgado convention N/A N/A 20
ssa_dstype Data type Type of data (spectrum, time series, etc) N/A N/A 20
owner Owner Owner of the data N/A N/A 25
embargo Embargo ends Date the data will become/became public a N/A 25

When publishing research making use of this service, please acknowledge: "The TheoSSA service (http://dc.g-vo.org/theossa) used to retrieve theoretical spectra for this paper was constructed as part of the activities of the German Astrophysical Virtual Observatory."

VOResource XML (that's something exclusively for VO nerds)