Table information for 'smakced.main'

General

Table Description: SMAKCED infrared images and derived properties of early-type dwarf galaxies in the Virgo cluster.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

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 table's resource, see Information on resource 'A Near-infrared Census of the Multicomponent Stellar Structure of Early-type Dwarf Galaxies in the Virgo Cluster'

Resource Reference URL: Resource info

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference 2014ApJ...786..105J (ADS BibTeX entry for the publication) either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:smakced_main,
  year=2014,
  title={A Near-infrared Census of the Multicomponent Stellar Structure of
Early-type Dwarf Galaxies in the Virgo Cluster},
  author={Janz, J. and Laurikainen, E. and Lisker, T. and Salo, H. and Peletier, R. F. and Niemi, S.-M. and Toloba, E. and Hensler, G. and Falcón-Barroso, J. and Boselli, A. and den Brok, M. and Hansson, K. S. A. and Meyer, H. T. and Ryś, A. and Paudel, S.},
  url={https://dc.g-vo.org/tableinfo/smakced.main},
  howpublished={{VO} resource provided by the {GAVO} Data Center}
}

Resource 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.

Columns

Sorted by DB column index. [Sort alphabetically]

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

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes

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)