Information on Service 'Sasmirala Photometry Details'

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The Subarcsecond mid-infrared (MIR) atlas of local active galactic nuclei (AGN) is a collection of all available N- and Q-band images obtained at ground-based 8-meter class telescopes with public archives (Gemini/Michelle, Gemini/T-ReCS, Subaru/COMICS, and VLT/VISIR). It includes in total 895 images, of which 60% are perviously unpublished. These correspond to 253 local AGN with a median redshift of 0.016. The atlas contains the uniformly processed and calibrated images and nuclear photometry obtained through Gauss and PSF fitting for all objects and filters. This also includes measurements of the nuclear extensions. In addition, the classifications of extended emission (if present) and derived nuclear monochromatic 12 and 18 micron continuum fluxes are available. Finally, flux ratios with the circumnuclear MIR emission (measured by Spitzer) and total MIR emission of the galaxy (measured by IRAS) are presented.

For a list of all services and tables belonging to this service's resource, see Information on resource 'Sasmirala: Subarcsecond mid-infrared atlas of local AGN'

Overview

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This service is not published. This can mean that it was deemed too unimportant, for internal use only, or is just a helper for a published service. Equally likely, however, it is under development, abandoned in development or otherwise unfinished. Exercise caution.

Other services provided on the underlying data include:

Spatial Coverage

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
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
name Object Common object name N/A meta.id;meta.main
wl Wavelength covered Central wavelength +/- FWHM of the observation covers this wavelength. um 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 Image Access key for the data N/A meta.ref.url
calmjd Cal. Date MJD of observation of calibrator star d time.epoch;obs.calib
calname Cal. Star Calibrator star name N/A meta.id;obs.calib
calpa Cal. PA. Calibrator Star position angle, north over east deg pos.posAng;obs.calib
convf Factor Conversion factor measured from the Calibration mJy/ct phot.calib
dateobs Date Obs. MJD of observation d time.epoch;obs
dej2000 Dec Declination J2000.0 deg pos.eq.dec;meta.main
efGauss E(F_Gauss) 1-sigma uncertainty in nuclear flux measured through Gauss fitting mJy stat.error;phot.flux,em.IR
efPSF E(F_PSF) 1-sigma uncertainty in nuclear flux measured through PSF fitting mJy stat.error;phot.flux,em.IR
exptime T_exp Total exposure time on-source s time.duration;obs.exposure
fGauss F_Gauss Nuclear flux measured through Gauss fitting mJy phot.flux,em.IR
filter Filter Filter name N/A instr.filter
fPSF F_PSF Nuclear flux measured through PSF fitting mJy phot.flux,em.IR
fwhmma Maj. Ax Major axis FWHM (constrained to <=1arcsec) of the Gaussian fit of the target object arcsec phys.angSize;src
fwhmmi Min. Ax Minor axis FWHM (constrained to <=1arcsec) of the Gaussian fit of the target object arcsec phys.angSize;src
hwidth HWHM Filter half-width-half-maximum um instr.bandwidth
limGauss Upper Lim. Gauss? If True, the object was not detected using Gauss fitting or no matching calibrator star was available. In that case, F_Gauss represents a 3-sigma upper limit. N/A meta.flag
limPSF Upper Lim. PSF? If True, the object was not detected using PSF fitting or no matching calibrator star was available. In that case, F_PSF represents a 3-sigma upper limit. N/A meta.flag
name Object Common object name N/A meta.id;meta.main
pa Pos. Ang. Position Angle, north over east, of the Gaussian fit of the target object deg pos.posAng;src
prodlink Info Link to a web page with images, bibliography, and other details on the source. N/A N/A
raj2000 RA Right Ascension J2000.0 deg pos.eq.ra;meta.main
w_obs λ_c Filter central wavelength (observing frame) um instr.filter;em.wl.central

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
name Object Common object name N/A meta.id;meta.main 1
raj2000 RA Right Ascension J2000.0 deg pos.eq.ra;meta.main 1
dej2000 Dec Declination J2000.0 deg pos.eq.dec;meta.main 1
accref Image Access key for the data N/A meta.ref.url 1
w_obs λ_c Filter central wavelength (observing frame) um instr.filter;em.wl.central 1
dateobs Date Obs. MJD of observation d time.epoch;obs 1
limGauss Upper Lim. Gauss? If True, the object was not detected using Gauss fitting or no matching calibrator star was available. In that case, F_Gauss represents a 3-sigma upper limit. N/A meta.flag 1
fGauss F_Gauss Nuclear flux measured through Gauss fitting mJy phot.flux,em.IR 1
efGauss E(F_Gauss) 1-sigma uncertainty in nuclear flux measured through Gauss fitting mJy stat.error;phot.flux,em.IR 1
limPSF Upper Lim. PSF? If True, the object was not detected using PSF fitting or no matching calibrator star was available. In that case, F_PSF represents a 3-sigma upper limit. N/A meta.flag 1
fPSF F_PSF Nuclear flux measured through PSF fitting mJy phot.flux,em.IR 1
efPSF E(F_PSF) 1-sigma uncertainty in nuclear flux measured through PSF fitting mJy stat.error;phot.flux,em.IR 1
filter Filter Filter name N/A instr.filter 5
exptime T_exp Total exposure time on-source s time.duration;obs.exposure 5
fwhmma Maj. Ax Major axis FWHM (constrained to <=1arcsec) of the Gaussian fit of the target object arcsec phys.angSize;src 5
fwhmmi Min. Ax Minor axis FWHM (constrained to <=1arcsec) of the Gaussian fit of the target object arcsec phys.angSize;src 5
prodlink Info Link to a web page with images, bibliography, and other details on the source. N/A N/A 10
hwidth HWHM Filter half-width-half-maximum um instr.bandwidth 15
calname Cal. Star Calibrator star name N/A meta.id;obs.calib 15
calmjd Cal. Date MJD of observation of calibrator star d time.epoch;obs.calib 15
convf Factor Conversion factor measured from the Calibration mJy/ct phot.calib 15
calpa Cal. PA. Calibrator Star position angle, north over east deg pos.posAng;obs.calib 15
pa Pos. Ang. Position Angle, north over east, of the Gaussian fit of the target object deg pos.posAng;src 15
instr Instr Instrument used to obtain the data N/A meta.id;instr 25
pfov Pix. size Pixel size of field of view arcsec/pix phys.angSize;instr.pixel 25
mode Mode Chop and nod mode N/A instr.setup 25
cthrow Chop Throw Chop throw arcsec instr.param 25
cangle Chop Angle Chop angle deg instr.param 25
rota Rot Instrument rotation angle, west of north. deg instr.param;pos.posAng 25
proid Prog Id Observation program ID N/A meta.id;obs 25
econvf Err. Factor 1-sigma uncertainty of the Conversion factor mJy/ct stat.error;phot.calib 25
calflu Cal. Flux Calibrator star flux mJy phot.flux;obs.calib 25
calfma Cal. Maj. Calibrator Star major axis FWHM arcsec phys.angSize;obs.calib 25
calfmi Cal. Min. Calibrator Star minor axis FWHM arcsec phys.angSize;obs.calib 25

If you use this atlas please cite the Asmus et al. work given under the "source" metadata item.

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