Information on Service 'DwarfArchives.org – Photometry, spectroscopy, and astrometry of L, T, and Y dwarfs'

Further access options are discussed below

A catalogue of brown dwarfs produced by Gelino et al. The database reflects the state of http://www.dwarfArchives.org on 2015-09-29.

For a list of all services and tables belonging to this service's resource, see Information on resource 'DwarfArchives.org – Photometry, spectroscopy, and astrometry of L, T, and Y dwarfs'

Overview

You can access this service using:

form -- an interface for web browsers through an HTML form
scs.xml -- a standard SCS interface as defined by the IVOA to access catalog-type data; SCS clients use https://dc.zah.uni-heidelberg.de/brownDwarfs/bd/cone/scs.xml? to access the service
external -- a renderer with some custom access method that should be mentioned in the service description

Coverage

This service is published as follows:

Within the set(s) ivo_managed with the renderer dali
Within the set(s) local,ivo_managed with the renderer external
Within the set(s) ivo_managed with the renderer scs.xml

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

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
DEC	Delta (ICRS)	Declination (ICRS decimal)	deg	pos.eq.dec
hscs_pos	Position/Name	Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object	N/A	N/A
hscs_sr	Search radius	Search radius in arcminutes	N/A	N/A
jmag	Mag(J)	Magnitude in the J band	mag	phot.mag;em.IR.J
maxrec	Match limit	Maximum number of records returned. Pass 0 to retrieve service parameters.	N/A	N/A
pm_tot	PM	Total proper motion	deg/yr	pos.pm
RA	Alpha (ICRS)	Right Ascension (ICRS decimal)	deg	pos.eq.ra
responseformat	Output Format	File format requested for output.	N/A	meta.code.mime
spectral_opt	Spectral (Optical)	Spectral type inferred from observation in visible light	N/A	src.spType;em.opt
SR	Search Radius	Search radius	deg	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

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
_r	Dist.	Distance to cone center	deg	pos.distance
dej2000	Dec	Dec J2000.0	deg	pos.eq.dec;meta.main
designation	Name	Designation, typically from 2MASS	N/A	meta.id;meta.main
discovered_as	Disc. Name	Name the object was discovered as.	N/A	meta.id
discovered_by	Disc. Ref.	Reference to the paper in which the object was discovered.	N/A	meta.bib
errhmag	Err. Mag(H)	Error in magnitude in the H band	mag	stat.error;phot.mag;em.IR.H
errjmag	Err. Mag(J)	Error in magnitude in the J band	mag	stat.error;phot.mag;em.IR.J
errkmag	Err. Mag(K)	Error in magnitude in the K band	mag	stat.error;phot.mag;em.IR.K
hmag	Mag(H)	Magnitude in the H band	mag	phot.mag;em.IR.H
jmag	Mag(J)	Magnitude in the J band	mag	phot.mag;em.IR.J
kmag	Mag(K)	Magnitude in the K band	mag	phot.mag;em.IR.K
parallax	Par.	Parallax as reported by parallax_paper.	deg	pos.parallax
parallax_error	Par. Error	Error in parallax as reported by parallax_paper.	deg	stat.error;pos.parallax
parallax_paper	Par. Src.	Reference to the paper the parallax was taken from	N/A	meta.bib;pos.parallax
pm_pa	PA of PM	Position angle of proper motion	deg	pos.posAng;pos.pm
pm_paper	PM Src.	Paper the proper motion was taken from.	N/A	meta.bib;pos.pm
pm_tot	PM	Total proper motion	deg/yr	pos.pm
raj2000	RA	RA J2000.0	deg	pos.eq.ra;meta.main
spectral_ir	Spectral (IR)	Spectral type inferred from observation in infrared	N/A	src.spType;em.IR
spectral_opt	Spectral (Optical)	Spectral type inferred from observation in visible light	N/A	src.spType;em.opt
st_ir_paper	Sp. IR Src.	Reference to the paper the infrared spectral type was taken from	N/A	meta.bib;src.spType
st_opt_paper	Sp. Opt. Src.	Reference to the paper the optical spectral type was taken from	N/A	meta.bib;src.spType

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
_r	Dist.	Distance to cone center	deg	pos.distance	10
parallax	Par.	Parallax as reported by parallax_paper.	deg	pos.parallax	15
parallax_error	Par. Error	Error in parallax as reported by parallax_paper.	deg	stat.error;pos.parallax	15
parallax_paper	Par. Src.	Reference to the paper the parallax was taken from	N/A	meta.bib;pos.parallax	15
pm_tot	PM	Total proper motion	deg/yr	pos.pm	15
pm_pa	PA of PM	Position angle of proper motion	deg	pos.posAng;pos.pm	15
pm_paper	PM Src.	Paper the proper motion was taken from.	N/A	meta.bib;pos.pm	15
spectral_opt	Spectral (Optical)	Spectral type inferred from observation in visible light	N/A	src.spType;em.opt	15
st_opt_paper	Sp. Opt. Src.	Reference to the paper the optical spectral type was taken from	N/A	meta.bib;src.spType	15
spectral_ir	Spectral (IR)	Spectral type inferred from observation in infrared	N/A	src.spType;em.IR	15
st_ir_paper	Sp. IR Src.	Reference to the paper the infrared spectral type was taken from	N/A	meta.bib;src.spType	15
discovered_as	Disc. Name	Name the object was discovered as.	N/A	meta.id	15
discovered_by	Disc. Ref.	Reference to the paper in which the object was discovered.	N/A	meta.bib	15
designation	Name	Designation, typically from 2MASS	N/A	meta.id;meta.main	20
raj2000	RA	RA J2000.0	deg	pos.eq.ra;meta.main	20
dej2000	Dec	Dec J2000.0	deg	pos.eq.dec;meta.main	20
jmag	Mag(J)	Magnitude in the J band	mag	phot.mag;em.IR.J	20
errjmag	Err. Mag(J)	Error in magnitude in the J band	mag	stat.error;phot.mag;em.IR.J	20
hmag	Mag(H)	Magnitude in the H band	mag	phot.mag;em.IR.H	20
errhmag	Err. Mag(H)	Error in magnitude in the H band	mag	stat.error;phot.mag;em.IR.H	20
kmag	Mag(K)	Magnitude in the K band	mag	phot.mag;em.IR.K	20
errkmag	Err. Mag(K)	Error in magnitude in the K band	mag	stat.error;phot.mag;em.IR.K	20
pm_tot_err	Err(PM)	Error in total proper motion.	deg/yr	stat.error;pos.pm	25
pm_pa_error	Err. PA	Error in the position angle of the proper motion.	deg	stat.error;pos.posAng;pos.pm	25

Copyright, License, Acknowledgements

If this table has been useful to you, please acknowledge: This research has benefitted from the M, L, and T dwarf compendium housed at DwarfArchives.org and maintained by Chris Gelino, Davy Kirkpatrick, and Adam Burgasser.

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