2021A&A...654A..61L


Query : 2021A&A...654A..61L

2021A&A...654A..61L - Astronomy and Astrophysics, volume 654A, 61-61 (2021/10-1)

J-PLUS: Systematic impact of metallicity on photometric calibration with the stellar locus.

LOPEZ-SANJUAN C., YUAN H., VAZQUEZ RAMIO H., VARELA J., CRISTOBAL-HORNILLOS D., TREMBLAY P.-E., MARIN-FRANCH A., CENARRO A.J., EDEROCLITE A., ALFARO E.J., ALVAREZ-CANDAL A., DAFLON S., HERNAN-CABALLERO A., HERNANDEZ-MONTEAGUDO C., JIMENEZ-ESTEBAN F.M., PLACCO V.M., TEMPEL E., ALCANIZ J., ANGULO R.E., DUPKE R.A., MOLES M. and SODRE L.

Abstract (from CDS):


Aims. We present the photometric calibration of the twelve optical passbands for the Javalambre Photometric Local Universe Survey (J-PLUS) second data release (DR2), comprising 1088 pointings of two square degrees, and study the systematic impact of metallicity on the stellar locus technique.
Methods. The [Fe/H] metallicity from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) for 146 184 high-quality calibration stars, defined with signal-to-noise ratio larger than ten in J-PLUS passbands and larger than three in Gaia parallax, was used to compute the metallicity-dependent stellar locus (ZSL). The initial homogenization of J-PLUS photometry, performed with a unique stellar locus, was refined by including the metallicity effect in colors via the ZSL.
Results. The variation of the average metallicity along the Milky Way produces a systematic offset in J-PLUS calibration. This effect is well above 1% for the bluer passbands and amounts 0.07, 0.07, 0.05, 0.03, and 0.02 mag in u, J0378, J0395, J0410, and J0430, respectively. We modeled this effect with the Milky Way location of the J-PLUS pointing, also providing an updated calibration for those observations without LAMOST information. The estimated accuracy in the calibration after including the metallicity effect is at 1% for the bluer J-PLUS passbands and below for the rest.
Conclusions. Photometric calibration with the stellar locus technique is prone to significant systematic bias in the Milky Way for passbands bluer than λ = 4500 Å. The calibration method for J-PLUS DR2 reaches 1-2% precision and 1% accuracy for 12 optical filters within an area of 2176 square degrees.

Abstract Copyright: © ESO 2021

Journal keyword(s): methods: statistical - techniques: photometric - surveys

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 GD 153 WD* 12 57 02.3224909560 +22 01 52.634778240 11.883 13.060 13.349 13.488 13.669 DA1.2 342 0

Query : 2021A&A...654A..61L

Basic data :
GD 153 -- White Dwarf
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (GD,BPM,...), X (2012ApJ,2E,...), UV (2EUVE,EUVE,...), PM* (2018yCat,LSPM,...), WD* (2009A&A,EGGR,...), V* (1SWASP), IR (2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
12 57 02.3224909560 +22 01 52.634778240 (Optical) [ 0.0307 0.0238 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
12 54 35.2650498956 +22 18 15.310123924 [ 0.0307 0.0238 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
317.2550212690867 +84.7465597808474 [ 0.0307 0.0238 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
-38.402 -202.990 [0.045 0.051 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) 8.3 [2.5] / z(spectroscopic) 0.000028 [0.000008] / cz 8.30 [2.50]
   (Opt) C 2020A&A...638A.131N
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
14.593 [0.0377] A 2020yCat.1350....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
DA1.2 C 2011ApJ...743..138G
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (14) :
U 11.883 [0.0046] B 2013AJ....146..131L
B 13.060 [0.0019] B 2013AJ....146..131L
V 13.349 [0.0040] B 2013AJ....146..131L
R 13.488 [0.0051] B 2013AJ....146..131L
G 13.310926 [0.002795] C 2020yCat.1350....0G
I 13.669 [0.0068] B 2013AJ....146..131L
J 14.012 [0.025] C 2003yCat.2246....0C
H 14.209 [0.037] C 2003yCat.2246....0C
K 14.308 [0.062] C 2003yCat.2246....0C
u (AB) 13.349 [0.004] C 2015ApJS..219...12A
g (AB) 13.215 [0.002] C 2015ApJS..219...12A
r (AB) 13.744 [0.003] C 2015ApJS..219...12A
i (AB) 14.604 [0.010] C 2015ApJS..219...12A
z (AB) 14.468 [0.007] C 2015ApJS..219...12A
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (48) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GD 153 GCRV 21676 2RE J1257+220 TIC 149505899
BPM 88611 GEN# +6.10060153 RE J1257+22 UCAC4 561-053035
CSI+22-12546 GSC 01455-01145 RE J1257+220 USNO-B1.0 1120-00238733
2E 2912 L 1336-41 RE J125703+220128 uvby98 600113724
2E 1254.5+2218 LP 378-99 RX J1257.0+2202 WD 1254+223
EGGR 187 LSPM J1257+2201 RX J1257.0+2201 WD 1254+233
1ES 1254+22.3 LTT 13724 RX J125702.4+220155 2XMM J125702.3+220151
2EUVE J1257+22.0 2MASS J12570233+2201526 1RXS J125702.4+220155 [HMT98] AS 25-0
EUVE J1256+22.0 NLTT 32398 SDSS J125702.31+220151.6 [TFW97] J125702.37+220156.00
EUVE J1257+22.0 PG 1254+223 SDSS J125702.32+220151.6 [ZEH2003] RX J1257.0+2201 1
FAUST 3589 RBS 1186 SDSS J125702.31+220151.5 Gaia DR3 3944400490365194368
FS 33 2RE J125702+220148 1SWASP J125702.33+220152.9 Gaia DR2 3944400490365194368

References (342 between 1850 and 2023) (Total 342)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 1    distance : 3    Fe_H : 6    PLX : 2    PM : 5    MK : 4   

   

Observing logs


IUE : 15    XMM : 5   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : GD 153

Link by name to the catalogue in VizieR :

2E 2912 EUVE J1256+22.0 EUVE J1257+22.0 FAUST 3589 GSC 01455-01145
LSPM J1257+2201 2MASS J12570233+2201526 NLTT 32398 PG 1254+223 2RE J125702+220148
2RE J1257+220 1RXS J125702.4+220155 SDSS J125702.31+220151.6 SDSS J125702.32+220151.6 SDSS J125702.31+220151.5
UCAC4 561-053035 USNO-B1.0 1120-00238733 uvby98 600113724 WD 1254+223 WD 1254+233
Gaia DR3 3944400490365194368 Gaia DR2 3944400490365194368

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2023.02.04-09:13:36

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