Information on Service 'SMAKCED H-band images of Early-Type Virgo Dwarf Galaxies'

[Use this service from your browser]

Further access options are discussed below

The Stellar content, MAss and Kinematics of Cluster Early-type Dwarf galaxies (SMAKCED) project is a survey of 121 Virgo cluster early type galaxies. This service publishes deep near-infrared (H band) images obtained by SMAKCED together with resulting decompositions and other properties of the galaxies in the sample.

For a list of all services and tables belonging to this service's resource, see Information on resource 'A Near-infrared Census of the Multicomponent Stellar Structure of Early-type Dwarf Galaxies in the Virgo Cluster'

Service Documentation

The images are calibrated such that

mag_H = -2.5 log(counts)

(in the 2MASS photometric system) without the need for an additional zeropoint. Extinction correction according to 1998ApJ...500..525S is already applied to these values.

Overview

You can access this service using:

Coverage

Intervals of messenger energies reflected in this resource: 0.670182 0.861004 eV

Time covered by this resource's data: 2010.04 2012.2

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
BAND Wavelength Wavelength interval that should intersect with the dataset coverage N/A N/A
CALIB Calib. Level Calibration level of the data (0=raw data .. 3=processed science-ready data) N/A N/A
COLLECTION Collection A name of a data collection within the service (use ObsTAP to find out the possible values). N/A N/A
DPTYPE Type Select either image or cube. N/A N/A
EXPTIME Exposure Time Lower and upper bound for the integration times of the observation s N/A
FACILITY Facility A name of a facility (usually a telescope) used to make the observation. N/A N/A
FORMAT Format Media type (like application/fits) or similar of the data product searched N/A N/A
FOV Field of View Lower and upper bound for the field of view of the observation deg N/A
ID DID A dataset identifier to match. Note that contrary to the SIAP v2 REC, we do not compare the IVOIDs case-insensitively. This should not be an issue if you got the IVOID from this service. For IVOIDs obtained in other ways, you may need to use ILIKE or a similar facility through ObsTAP. N/A N/A
INSTRUMENT Instrument A name of an instrument used to acquire the data. N/A N/A
MAXREC Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
object Target Object VCC identifier (like 'VCC0009') N/A meta.id
POL Polarisation Polarisation states as per Obscore (i.e., from the set I Q U V RR LL RL LR XX YY XY YX POLI POLA N/A N/A
POS Position A spatial constraint using SIAPv2 CIRCLE, RANGE, or POLYGON shapes and respective values in decimal degrees. N/A N/A
RESPONSEFORMAT Output Format File format requested for output. N/A meta.code.mime
SPATRES Spat. Res. Lower and upper bound for the spatial resolution of the image(s) deg N/A
SPECRP Res. Power Lower and upper bound for the spectral resolving power λ/Δλ in spectrally resolved observations N/A N/A
TARGET Target A name of an observation target. N/A N/A
TIME Time Time interval that should intersect with the dataset coverage N/A N/A
TIMERES Time res. Lower and upper bound for the (absolute) resolution on the time axis s 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.

NameTable Head DescriptionUnitUCD
access_estsize Size Estimated size of data product kbyte phys.size;meta.file
access_format Media Type MIME type of the resource at access_url N/A meta.code.mime
access_url Access URL The URL at which to obtain the data set. N/A meta.ref.url
b_a b/a Axis raio at 2 r_e N/A phys.angSize;arith.ratio
bandpass_id Bandpass Free-form name of the bandpass (filter, detector, whatever else defines the spectral response) this observation was taken in. N/A instr.bandpass
calib_level Calibration level Amount of data processing that has been applied to the data Note calib N/A meta.code;obs.calib
compmorph Add. info Additional information on decomposition. N/A meta.note;src.morph
concentration C Concentration index 5 log_80/r_20 as in 2000AJ....119.2645B N/A phys.size;arith.ratio
dataproduct_type Product type High level scientific classification of the data product, taken from an enumeration N/A meta.code.class
dateObs Approx. date Approximate observation date (essentially, month and year should be about right). NULL for archival material d time;obs.exposure
dej2000 Dec ICRS Declination of galaxy center from asymmetry centering (unless specified otherwise in remarks). deg pos.eq.dec;meta.main
em_max λ_max Maximal wavelength represented within the data set m em.wl;stat.max
em_min λ_min Minimal wavelength represented within the data set m em.wl;stat.min
em_res_power λ/Δλ Spectral resolving power lambda/delta lambda N/A spect.resolution
em_ucd Spect. UCD Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy) N/A meta.ucd
em_xel |λ| Number of elements (typically pixels) along the spectral axis. N/A meta.number
exptime Exp. time Total integration time for the object (sum of exposure times of all images stacked; note that different telescopes were in use). s time.duration;obs.exposure
facility_name Facility Name of the facility at which data was taken N/A meta.id;instr.tel
hmag m_H Total H-band magnitude of the galaxy N/A phot.mag;em.ir.H
inner_b_a b/a(inner) Axis ratio, inner component N/A phys.angSize;arith.ratio
inner_m m(inner) Integrated H-band brightness, inner component mag phot.mag;em.ir.H
inner_n n(inner) Sérsic index, inner component N/A stat.fit.param
inner_rc r_c(inner) Half-light radius, inner component arcsec phys.angSize;src
instrument_name Instrument Name of the instrument that produced the data N/A meta.id;instr
moreinfo More Bibcodes of papers containing more information. N/A meta.ref
o_ucd Obs. UCD UCD for the product's observable N/A meta.ucd
object Galaxy name Common name of the observed galaxy. N/A meta.id;meta.main
obs_collection Collection Name of a data collection (e.g., project name) this data belongs to N/A meta.id
obs_creator_did Creator DID Dataset identifier assigned by the creator. N/A meta.id
obs_id Obs. Id Unique identifier for an observation N/A meta.id
obs_publisher_did Pub. DID Dataset identifier assigned by the publisher. N/A meta.ref.ivoid
obs_title Title Free-from title of the data set N/A meta.title;obs
outer_b_a b/a(outer) Axis ratio, global/outer component N/A phys.angSize;arith.ratio
outer_m m(outer) Integrated H-band brightness, global/outer component mag phot.mag;em.ir.H
outer_n n(outer) Sérsic index, global/outer component N/A stat.fit.param
outer_rc r_c(outer) Half-light radius, global/outer component arcsec phys.angSize;src
pol_states Pol. States List of polarization states in the data set N/A meta.code;phys.polarization
pol_xel |Pol| Number of elements (typically pixels) along the polarization axis. N/A meta.number
r_e r_e Effective radius of the galaxy (semi-major axis of half-light aperture in H). arcsec phys.angSize
raj2000 RA ICRS RA of galaxy center from asymmetry centering (unless specified otherwise in remarks). deg pos.eq.ra;meta.main
remarks Remarks Morphological features from 2006AJ....132.2432L and other remarks N/A meta.note
rho10 log ρ_10 Local projected number density of cluster galaxies. (see Appendix D in the source) log(deg**-2) src.density
s_dec Dec Dec of (center of) observation, ICRS deg pos.eq.dec
s_fov FoV Approximate spatial extent for the region covered by the observation deg phys.angSize;instr.fov
s_pixel_scale Pix. Scale Sampling period in world coordinate units along the spatial axis arcsec phys.angSize;instr.pixel
s_ra RA RA of (center of) observation, ICRS deg pos.eq.ra
s_region coverage Region covered by the observation, as a polygon N/A pos.outline;obs.field
s_resolution Space Res. Best spatial resolution within the data set arcsec pos.angResolution
s_xel1 |X| Number of elements (typically pixels) along the first spatial axis. N/A meta.number
s_xel2 |Y| Number of elements (typically pixels) along the second spatial axis. N/A meta.number
seeing Seeing Estimate for the seeing at observation time. arcsec instr.obsty.seeing
simp_b_a b/a(simp) Axis ratio, simple model N/A phys.angSize;arith.ratio
simp_m m(simp) Integrated H-band brightness, simple model mag phot.mag;em.ir.H
simp_n n(simp) Sérsic index, simple model N/A stat.fit.param
simp_rc r_c(simp) Half-light radius, simple model arcsec phys.angSize;src
snr S/N Signal to noise ratio for a pixel at 2 r_e. N/A stat.snr
structgroup Group Structural Group (see 2012ApJ...745L..24J) resulting from the decomposition. N/A meta.code.class
t_exptime Exp. Time Total exposure time s time.duration;obs.exposure
t_max Max. t Upper bound of times represented in the data set d time.end;obs.exposure
t_min Min. t Lower bound of times represented in the data set d time.start;obs.exposure
t_resolution Res. t Minimal significant time interval along the time axis s time.resolution
t_xel |t| Number of elements (typically pixels) along the time axis. N/A meta.number
target_class Target Class Class of the target object (star, QSO, ...) N/A src.class
target_name Target Name Object a targeted observation targeted N/A meta.id;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.

NameTable Head DescriptionUnitUCD Verb. Level
access_url Access URL The URL at which to obtain the data set. N/A meta.ref.url 1
s_ra RA RA of (center of) observation, ICRS deg pos.eq.ra 1
s_dec Dec Dec of (center of) observation, ICRS deg pos.eq.dec 1
dateObs Approx. date Approximate observation date (essentially, month and year should be about right). NULL for archival material d time;obs.exposure 1
dataproduct_type Product type High level scientific classification of the data product, taken from an enumeration N/A meta.code.class 5
obs_id Obs. Id Unique identifier for an observation N/A meta.id 5
obs_title Title Free-from title of the data set N/A meta.title;obs 5
obs_publisher_did Pub. DID Dataset identifier assigned by the publisher. N/A meta.ref.ivoid 5
access_format Media Type MIME type of the resource at access_url N/A meta.code.mime 5
access_estsize Size Estimated size of data product kbyte phys.size;meta.file 5
s_fov FoV Approximate spatial extent for the region covered by the observation deg phys.angSize;instr.fov 5
raj2000 RA ICRS RA of galaxy center from asymmetry centering (unless specified otherwise in remarks). deg pos.eq.ra;meta.main 9
dej2000 Dec ICRS Declination of galaxy center from asymmetry centering (unless specified otherwise in remarks). deg pos.eq.dec;meta.main 9
calib_level Calibration level Amount of data processing that has been applied to the data Note calib N/A meta.code;obs.calib 10
t_min Min. t Lower bound of times represented in the data set d time.start;obs.exposure 10
t_max Max. t Upper bound of times represented in the data set d time.end;obs.exposure 10
t_exptime Exp. Time Total exposure time s time.duration;obs.exposure 10
em_min λ_min Minimal wavelength represented within the data set m em.wl;stat.min 10
em_max λ_max Maximal wavelength represented within the data set m em.wl;stat.max 10
s_xel1 |X| Number of elements (typically pixels) along the first spatial axis. N/A meta.number 10
s_xel2 |Y| Number of elements (typically pixels) along the second spatial axis. N/A meta.number 10
t_xel |t| Number of elements (typically pixels) along the time axis. N/A meta.number 10
em_xel |λ| Number of elements (typically pixels) along the spectral axis. N/A meta.number 10
pol_xel |Pol| Number of elements (typically pixels) along the polarization axis. N/A meta.number 10
s_pixel_scale Pix. Scale Sampling period in world coordinate units along the spatial axis arcsec phys.angSize;instr.pixel 10
bandpass_id Bandpass Free-form name of the bandpass (filter, detector, whatever else defines the spectral response) this observation was taken in. N/A instr.bandpass 10
obs_collection Collection Name of a data collection (e.g., project name) this data belongs to N/A meta.id 15
obs_creator_did Creator DID Dataset identifier assigned by the creator. N/A meta.id 15
target_name Target Name Object a targeted observation targeted N/A meta.id;src 15
s_region coverage Region covered by the observation, as a polygon N/A pos.outline;obs.field 15
s_resolution Space Res. Best spatial resolution within the data set arcsec pos.angResolution 15
t_resolution Res. t Minimal significant time interval along the time axis s time.resolution 15
em_res_power λ/Δλ Spectral resolving power lambda/delta lambda N/A spect.resolution 15
o_ucd Obs. UCD UCD for the product's observable N/A meta.ucd 15
pol_states Pol. States List of polarization states in the data set N/A meta.code;phys.polarization 15
facility_name Facility Name of the facility at which data was taken N/A meta.id;instr.tel 15
instrument_name Instrument Name of the instrument that produced the data N/A meta.id;instr 15
em_ucd Spect. UCD Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy) N/A meta.ucd 15
object Galaxy name Common name of the observed galaxy. N/A meta.id;meta.main 15
exptime Exp. time Total integration time for the object (sum of exposure times of all images stacked; note that different telescopes were in use). s time.duration;obs.exposure 15
seeing Seeing Estimate for the seeing at observation time. arcsec instr.obsty.seeing 15
snr S/N Signal to noise ratio for a pixel at 2 r_e. N/A stat.snr 15
hmag m_H Total H-band magnitude of the galaxy N/A phot.mag;em.ir.H 15
r_e r_e Effective radius of the galaxy (semi-major axis of half-light aperture in H). arcsec phys.angSize 15
b_a b/a Axis raio at 2 r_e N/A phys.angSize;arith.ratio 15
concentration C Concentration index 5 log_80/r_20 as in 2000AJ....119.2645B N/A phys.size;arith.ratio 15
rho10 log ρ_10 Local projected number density of cluster galaxies. (see Appendix D in the source) log(deg**-2) src.density 15
remarks Remarks Morphological features from 2006AJ....132.2432L and other remarks N/A meta.note 15
structgroup Group Structural Group (see 2012ApJ...745L..24J) resulting from the decomposition. N/A meta.code.class 15
compmorph Add. info Additional information on decomposition. N/A meta.note;src.morph 17
simp_m m(simp) Integrated H-band brightness, simple model mag phot.mag;em.ir.H 19
simp_rc r_c(simp) Half-light radius, simple model arcsec phys.angSize;src 19
simp_n n(simp) Sérsic index, simple model N/A stat.fit.param 19
simp_b_a b/a(simp) Axis ratio, simple model N/A phys.angSize;arith.ratio 19
inner_m m(inner) Integrated H-band brightness, inner component mag phot.mag;em.ir.H 19
inner_rc r_c(inner) Half-light radius, inner component arcsec phys.angSize;src 19
inner_n n(inner) Sérsic index, inner component N/A stat.fit.param 19
inner_b_a b/a(inner) Axis ratio, inner component N/A phys.angSize;arith.ratio 19
outer_m m(outer) Integrated H-band brightness, global/outer component mag phot.mag;em.ir.H 19
outer_rc r_c(outer) Half-light radius, global/outer component arcsec phys.angSize;src 19
outer_n n(outer) Sérsic index, global/outer component N/A stat.fit.param 19
outer_b_a b/a(outer) Axis ratio, global/outer component N/A phys.angSize;arith.ratio 19
target_class Target Class Class of the target object (star, QSO, ...) N/A src.class 20
moreinfo More Bibcodes of papers containing more information. N/A meta.ref 20
simpdec_rff RFF(simpdec) Residual flux fraction (2006ApJ...644...30B) for the single decomposition N/A stat.fit.goodness 22
simpdec_evi EVI(simpdec) Excess variance index (2011MNRAS.411.2439H) for single decomposition N/A stat.fit.goodness 22
finaldec_rff RFF(finaldec) Residual flux fraction (2006ApJ...644...30B) for the final decomposition N/A stat.fit.goodness 22
finaldec_evi EVI(finaldec) Excess variance index (2011MNRAS.411.2439H) for final decomposition N/A stat.fit.goodness 22
dataproduct_subtype Subtype Data product specific type N/A meta.code.class 25
source_table Source Table Name of a TAP-queriable table this data originates from. This source table usually provides more information on the the data than what is given in obscore. See the TAP_SCHEMA of the originating TAP server for details. N/A meta.id;meta.table 25

Citation Info

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

Note calib

The calib_level flag takes the following values:

0 Raw Instrumental data requiring instrument-specific tools
1 Instrumental data processable with standard tools
2 Calibrated, science-ready data without instrument signature
3 Enhanced data products (e.g., mosaics)