Information on Service 'HELP sources best fitting spectra from CIGALE'

Further access options are discussed below

Best fitting spectra found by CIGALE for each HELP source

For a list of all services and tables belonging to this service's resource, see Information on resource 'Herschel Extragalactic Legacy Project (HELP) - Best fitting spectra'

Service Documentation

This resource contains the best fitting spectra resulting from the analysis of some HELP sources with CIGALE.

Column	Unit	Description
WAVE or SPECTRAL	nm	Wavelength
FLUX	mJy	Flux density (Fν)
LUMIN	W/nm	Total luminosity
STELLAR	W/nm	Luminosity of the stellar component
DUST	W/nm	Luminosity of the dust component
AGN	W/nm	Luminosity of the AGN component
IGM	W/nm	Effect of the Inter-Galactic Medium on the luminosity

History

20170505

First version with preliminary COSMOS data.

Overview

You can access this service using:

ssap.xml -- a standard SSAP interface as defined by the IVOA to access spectral or time-series data; SSAP clients use https://herschel-vos.phys.sussex.ac.uk/bestseds/q/ssa/ssap.xml? to access the service
form -- allows access via an HTML form

This service is published as follows:

Within the set(s) ivo_managed,local with the renderer form
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):

Name	Table Head	Description	Unit	UCD
APERTURE	Aperture	Angular diameter of aperture	deg	instr.fov
BAND	Band	Wavelength (range) of interest (or symbolic bandpass names)	m	N/A
COLLECTION	Collection	IOVA id of the originating data collection	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	N/A	N/A
FORMAT	Type	MIME type of the file served	N/A	N/A
MAXREC	Match limit	Maximum number of records returned. Pass 0 to retrieve service parameters.	N/A	N/A
MAXREC	Match limit	Maximum number of records returned. Pass 0 to retrieve service parameters.	N/A	N/A
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	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
RESPONSEFORMAT	Output Format	File format requested for output.	N/A	meta.code.mime
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	Spec. Res.	Resolution on the spectral axis	m	spect.resolution;em.wl
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	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
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
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.

Name	Table Head	Description	Unit	UCD
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	VOX:Image_FileSize
datalink	Datalink	A link to a datalink document for this spectrum.	N/A	meta.ref.url;meta.data.datalink
location_arr	SSA Pos.	Observed position RA and Dec as a 2-real array as required by SSAP.	N/A	pos.eq
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	N/A
preview	Preview	URL of a preview for the dataset, where available.	N/A	meta.ref.url;datalink.preview
ssa_aperture	Aperture	Angular diameter of aperture	deg	instr.fov
ssa_bandpass	Bandpass	Bandpass (i.e., rough spectral location) of this dataset; use something generic like 'Optical' here.	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	IOVA id of the originating data collection	N/A	N/A
ssa_creationtype	Using	Process used to produce the data	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_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.	N/A	N/A
ssa_dateObs	Date Obs.	Midpoint of exposure	d	time.epoch
ssa_dstitle	Title	Title or the dataset (usually, spectrum)	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	N/A	N/A
ssa_fluxStatError	Err. flux	Statistical error in flux	mJy	stat.error;phot.flux.density;em
ssa_fluxSysError	Sys. Err flux	Systematic error in flux	mJy	stat.error.sys;phot.flux.density;em
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_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	N/A
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	N/A
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_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 on the spectral axis	m	spect.resolution;em.wl
ssa_specstart	Band start	Lower value of spectral coordinate	m	em.wl;stat.min
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
target_arr	SSA Target Pos.	Target RA and Dec as a 2-real array as required by SSAP.	N/A	pos.eq;src

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.

Name	Table Head	Description	Unit	UCD	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	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	VOX:Image_FileSize	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
location_arr	SSA Pos.	Observed position RA and Dec as a 2-real array as required by SSAP.	N/A	pos.eq	15
target_arr	SSA Target Pos.	Target RA and Dec as a 2-real array as required by SSAP.	N/A	pos.eq;src	15
preview	Preview	URL of a preview for the dataset, where available.	N/A	meta.ref.url;datalink.preview	15
ssa_dstitle	Title	Title or the dataset (usually, spectrum)	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; use something generic like 'Optical' here.	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	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_dstype	Data type	Type of data (spectrum, time series, etc)	N/A	N/A	15
ssa_publisher	Publisher	Publisher of the datasets included here.	N/A	N/A	15
ssa_creator	Creator	Creator of the datasets included here.	N/A	N/A	15
ssa_collection	Collection	IOVA id of the originating data collection	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.	N/A	N/A	15
ssa_creationtype	Using	Process used to produce the data	N/A	N/A	15
ssa_reference	Ref.	URL or bibcode of a publication describing this data.	N/A	N/A	15
ssa_fluxStatError	Err. flux	Statistical error in flux	mJy	stat.error;phot.flux.density;em	15
ssa_fluxSysError	Sys. Err flux	Systematic error in flux	mJy	stat.error.sys;phot.flux.density;em	15
ssa_fluxcalib	Calib Flux	Type of flux calibration	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 on the spectral axis	m	spect.resolution;em.wl	15
datalink	Datalink	A link to a datalink document for this spectrum.	N/A	meta.ref.url;meta.data.datalink	15
mime	Type	MIME type of the file served	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

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