Information on Service 'Optical Spectroscopy in the CDFS'

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These spectra are optical follow-up observations of the X-ray sources detected in the 942 ks exposure of the Chandra Deep Field-South (CDFS) using FORS.

For a list of all services and tables belonging to this service's resource, see Information on resource 'Optical Spectroscopy in the CDFS'

Overview

You can access this service using:

Coverage

1.12713 4.13281 eV

2000.82 2001.96

This service is published as follows:

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):

NameTable Head DescriptionUnitUCD
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
maxrec Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
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 meta.ref.ivoid
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
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
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.

NameTable Head DescriptionUnitUCD
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
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;meta.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_cdate Proc. Date Processing/Creation date N/A time;meta.dataset
ssa_creatorDID C. DID Dataset identifier assigned by the creator N/A meta.id
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_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_length Length Number of points in the spectrum N/A N/A
ssa_location Location ICRS location of aperture center deg pos.eq
ssa_pdate Pub. Date Date last published. N/A N/A
ssa_pubDID P. DID Dataset identifier assigned by the publisher N/A meta.ref.ivoid
ssa_redshift z Redshift of target object N/A src.redshift
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_specend Band end Upper value of spectral coordinate m em.wl;stat.max
ssa_specext Bandwidth Width of the spectrum m instr.bandwidth
ssa_specmid Mid. Band Midpoint of region covered in this dataset m instr.bandpass
ssa_specstart Band start Lower value of spectral coordinate m em.wl;stat.min
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

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.

NameTable Head DescriptionUnitUCD Verb. Level
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
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 meta.ref.ivoid 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 instr.bandpass 15
ssa_specext Bandwidth Width of the spectrum m 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
preview Preview URL of a preview for the dataset N/A meta.ref.url;meta.preview 15
mime Type MIME type of the file served N/A meta.code.mime 20
owner Owner Owner of the data N/A N/A 25
embargo Embargo ends Date the data will become/became public yr N/A 25

Citation Info

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