J/A+A/549/A29 Quasars behind the Magellanic system (Cioni+, 2013)
The VMC Survey. VI. Quasars behind the Magellanic system.
Cioni M.-R.L., Kamath D., Rubele S., van Loon J.T., Wood P.R.,
Emerson J.P., Gibson B.K., Groenewegen M.A.T., Ivanov V.D., Miszalski B.,
Ripepi V.
<Astron. Astrophys. 549, A29 (2013)>
=2013A&A...549A..29C 2013A&A...549A..29C
ADC_Keywords: Magellanic Clouds ; QSOs ; Photometry, infrared
Keywords: surveys - Magellanic Clouds - quasars: general - infrared: galaxies
Abstract:
The number and spatial distribution of confirmed quasi-stellar objects
(QSOs) behind the Magellanic system is limited. This undermines their
use as astrometric reference objects for different types of studies.
We have searched for criteria to identify candidate QSOs using
observations from the VISTA survey of the Magellanic Clouds system
(VMC) that provides photometry in the YJKs bands and 12 epochs in the
Ks band.
The (Y-J) versus (J-Ks) diagram has been used to distinguish QSO
candidates from Milky Way stars and stars of the Magellanic Clouds.
Then, the slope of variation in the Ks band has been used to identify
a sample of high confidence candidates. These criteria were developed
based on the properties of 117 known QSOs presently observed by the
VMC survey.
Description:
This table contains the VMC parameters for known quasars behind the
Magellanic system. Parameters were derived from observation acquired
until 30 September 2011.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 121 117 VMC (VISTA Magellanic Clouds survey) parameters
for known quasars behind the Magellanic system
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See also:
J/A+A/531/A157 : LMC planetary nebulae (VMC Survey II) (Miszalski+, 2011)
J/A+A/537/A105 : Modelisation of AGB stars in the LMC (Gullieuszik+, 2012)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- Name Quasar name
33- 34 I2 --- Ref Reference number (1)
37- 38 I2 h RAh Right ascension (J2000)
40- 41 I2 min RAm Right ascension (J2000)
43- 47 F5.2 s RAs Right ascension (J2000)
50 A1 --- DE- Declination sign (J2000)
51- 52 I2 deg DEd Declination (J2000)
54- 55 I2 arcmin DEm Declination (J2000)
57- 60 F4.1 arcsec DEs Declination (J2000)
63- 68 F6.3 mag Ymag ? VISTA Y band magnitude
71- 75 F5.3 mag e_Ymag ? Y band magnitude error
78- 83 F6.3 mag Jmag ? VISTA J band magnitude
86- 90 F5.3 mag e_Jmag ? J band magnitude error
93- 98 F6.3 mag Ksmag ? VISTA Ks band magnitude
101-105 F5.3 mag e_Ksmag ? Ks band magnitude error
108-109 I2 --- Class [-3/1] Source classification flag (2)
112-118 A7 --- Tile VMC tile designation
121 A1 --- Q [AB] Photometric quality flag, A=best
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Note (1): References as follows:
1 = Dobrzycki et al., 2002ApJ...569L..15D 2002ApJ...569L..15D
2 = Geha et al., 2003AJ....125....1G 2003AJ....125....1G
3 = Dobrzycki et al., 2003AJ....125.1330D 2003AJ....125.1330D
4 = Dobrzycki et al., 2003AJ....126..734D 2003AJ....126..734D
5 = Dobrzycki et al., 2005A&A...442..495D 2005A&A...442..495D
6 = Veron-Cetty & Veron (2010, Cat. VII/258)
7 = Kozlowski et al., 20011, Cat. J/ApJS/194/22
8 = Kozlowski et al., 2012ApJ...746...27K 2012ApJ...746...27K
9 = Tinney et al., 1997MNRAS.285..111T 1997MNRAS.285..111T
10 = Kamath, D., et al. (in preparation)
Note (2): the classification number is as follows:
1 = galaxy
-1 = star
-2 = probable star
-3 = probable galaxy
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Acknowledgements:
M. Cioni, mcioni(at)usm.uni-muenchen.de
References:
Cioni et al. Paper I 2011A&A...527A.116C 2011A&A...527A.116C
Miszalski et al. Paper II 2011A&A...531A.157M 2011A&A...531A.157M Cat. J/A+A/531/A157
Gullieuszik et al. Paper III 2012A&A...537A.105G 2012A&A...537A.105G Cat. J/A+A/537/A105
Rubele et al. Paper IV 2012A&A...537A.106R 2012A&A...537A.106R
Ripepi et al. Paper V 2012MNRAS.424.1807R 2012MNRAS.424.1807R Cat. J/MNRAS/424/1807
Cioni et al. Paper VI 2013A&A...549A..29C 2013A&A...549A..29C Cat. J/A+A/549/29
Tatton et al. Paper VII 2013A&A...554A..33T 2013A&A...554A..33T Cat. J/A+A/554/A33
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(End) Patricia Vannier [CDS] 14-Nov-2012