J/MNRAS/459/1687 Ks light curve of 299 SMC new Cepheids (Moretti+, 2016)
The VMC survey.
XX. Identification of new Cepheids in the Small Magellanic Cloud.
Moretti M.I., Clementini G., Ripepi V., Marconi M., Rubele S., Cioni M.-R.,
Muraveva T., Groenewegen M.A.T., Cross N.J.G., Ivanov V.D., Piatti A.E.,
De Grijs R.
<Mon. Not. R. Astron. Soc., 459, 1687-1697 (2016)>
=2016MNRAS.459.1687M 2016MNRAS.459.1687M (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Magellanic Clouds - Stars, variable ;
Photometry, infrared
Keywords: methods: data analysis - surveys - stars: variables: Cepheids -
Magellanic Clouds
Abstract:
We present Ks-band light curves for 299 Cepheids in the Small
Magellanic Cloud (SMC) of which 288 are new discoveries that we have
identified using multi-epoch near-infrared photometry obtained by the
VISTA survey of the Magellanic Clouds system (VMC). The new Cepheids
have periods in the range from 0.34 to 9.1d and cover the magnitude
interval 12.9≤<Ks>≤17.6mag. Our method was developed
using variable stars previously identified by the optical microlensing
survey OGLE. We focus on searching new Cepheids in external regions of
the SMC for which complete VMC Ks-band observations are available
and no comprehensive identification of different types of variable
stars from other surveys exists yet.
Description:
We have developed a technique to identify variable stars using only
the multi-epoch near-infrared photometry obtained by the VMC survey
and have specifically tailored it to the identification of Cepheids.
The technique exploits colour-magnitude and colour-colour
diagrams, and PL relations defined by known SMC Cepheids, along with
template parameter selections and visual inspection of the light curve
to identify bona fide Cepheids. The technique was applied to external
regions of the SMC for which complete VMC Ks-band observations are
available and no comprehensive identification of variable stars from
other surveys exists yet. We have identified and present Ks-band light
curves for 299 SMC Cepheids.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 142 299 Information on the 299 Cepheids that we have
identified in the SMC using only the
near-infrared photometry of the VMC survey
table4.dat 46 4934 Ks-band time series photometry of our
299 SMC Cepheids
--------------------------------------------------------------------------------
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)
J/A+A/549/A29 : Quasars behind the Magellanic system (Cioni+, 2013)
J/A+A/554/A33 : VMC Survey. VII. 30 Doradus reddening map (Tatton+, 2013)
J/MNRAS/424/1807 : VISTA Magellanic Cloud Survey. V. Cepheids (Ripepi+, 2012)
J/MNRAS/437/2307 : LMC anomalous Cepheid Ks light curves (Ripepi+, 2014)
J/MNRAS/437/2702 : MC Cepheids, RR Lyrae stars and binaries (Moretti+, 2014)
J/MNRAS/443/432 : Eclipsing binaries in LMC (Muraveva+, 2014)
J/MNRAS/446/3034 : LMC Type II Cepheids J and Ks light curves (Ripepi+, 2015)
J/MNRAS/449/639 : VMC survey. XIV. SFR in SMC (Rubele+, 2015)
J/MNRAS/454/839 : VMC survey. XVI. SFR in LMC (Piatti+, 2015)
J/ApJS/224/21 : VMC survey. XIX. Classical Cepheids in SMC (Ripepi+, 2016)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- --- [VMC-SMC-CEP-]
13- 15 I03 --- Star [1/299] VMC-SMC-CEP- star number
17- 18 I2 h RAh Right ascension (J2000)
20- 21 I2 min RAm Right ascension (J2000)
23- 27 F5.2 s RAs Right ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000)
33- 34 I2 arcmin DEm Declination (J2000)
36- 39 F4.1 arcsec DEs Declination (J2000)
41- 42 I2 --- o_Ksmag Number of measurements in Ks band
44- 53 F10.7 d Per Period computed with SigSpec
55- 58 F4.2 mag AmpKs Amplitude in Ks band computed with the
template-fitting procedure
60- 65 F6.3 mag <Ksmag> Intensity-averaged Ks magnitude computed with
the template-fitting procedure
67 I1 --- VarClass [0/1] VarClass flag assigned by the VSA,
1 for variable
69- 73 F5.1 % PVar Percentage variability assigned in the
present study
74- 77 A4 --- --- [% CC]
79-142 A64 --- Com Comments
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d HJD Heliocentric Julian date (HJD-2400000)
14- 20 F7.4 mag Ksmag Ks magnitude
22- 27 F6.4 mag e_Ksmag rms uncertainty on Ksmag
29- 30 I2 --- o_Ksmag Number of measurements in Ks band for this star
32- 43 A12 --- --- [VMC-SMC-CEP-]
44- 46 I03 --- Star [1/299] VMC-SMC-CEP- star number
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Cioni et al. 2011Msngr.144...25C 2011Msngr.144...25C
Cioni et al. Paper I 2011A&A...527A.116C 2011A&A...527A.116C Cat. II/351
Miszalski et al. Paper II 2011A&A...531A.157M 2011A&A...531A.157M
Gullieuszik et al. Paper III 2012A&A...537A.105G 2012A&A...537A.105G
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
Ripepi et al. Paper VIII 2014MNRAS.437.2307R 2014MNRAS.437.2307R Cat. J/MNRAS/437/2307
Cioni et al. Paper IX 2014A&A...562A..32C 2014A&A...562A..32C
Moretti et al. Paper X 2014MNRAS.437.2702M 2014MNRAS.437.2702M Cat. J/MNRAS/437/2702
Li et al. Paper XI 2014ApJ...790...35L 2014ApJ...790...35L
Piatti et al. Paper XII 2014A&A...570A..74P 2014A&A...570A..74P
Ripepi et al. Paper XIII 2015MNRAS.446.3034R 2015MNRAS.446.3034R Cat. J/MNRAS/446/3034
Rubele et al. Paper XIV 2015MNRAS.449..639R 2015MNRAS.449..639R Cat. J/MNRAS/449/639
Piatti et al. Paper XV 2015MNRAS.450..552P 2015MNRAS.450..552P
Piatti et al. Paper XVI 2015MNRAS.454..839P 2015MNRAS.454..839P Cat. J/MNRAS/454/839
Cioni et al. Paper XVII 2016A&A...586A..77C 2016A&A...586A..77C
Zhang et al. Paper XVIII 2015ApJ...815...95Z 2015ApJ...815...95Z
Ripepi et al. Paper XIX 2016ApJS..224...21R 2016ApJS..224...21R Cat. J/ApJS/224/21
Piatti et al. Paper XXI 2016MNRAS.460..383P 2016MNRAS.460..383P
Sun et al. Paper XXII 2017ApJ...835..171S 2017ApJ...835..171S
Marconi et al. Paper XXIII 2017MNRAS.466.3206M 2017MNRAS.466.3206M
Ripepi et al. Paper XIX 2016ApJS..224...21R 2016ApJS..224...21R Cat. J/ApJS/224/21
Moretti et al. Paper XX 2016MNRAS.459.1687M 2016MNRAS.459.1687M Cat. J/MNRAS/459/1687
Piatti et al. Paper XXI 2016MNRAS.460..383P 2016MNRAS.460..383P
Sun et al. Paper XXII 2017ApJ...835..171S 2017ApJ...835..171S
Marconi et al. Paper XXIII 2017MNRAS.466.3206M 2017MNRAS.466.3206M
Subramanian et al. Paper XXIV 2017MNRAS.467.2980S 2017MNRAS.467.2980S
Ripepi et al. Paper XXV 2017MNRAS.472..808R 2017MNRAS.472..808R
Muraveva et al. Paper XXVI 2018MNRAS.473.3131M 2018MNRAS.473.3131M
Sun et al. Paper XXVII 2017ApJ...849..149S 2017ApJ...849..149S Cat. J/ApJ/849/149
Niederhofer et al. Paper XXVIII 2018A&A...612A.115N 2018A&A...612A.115N
Sun et al. Paper XXIX 2018ApJ...858...31S 2018ApJ...858...31S Cat. J/ApJ/858/31
Niederhofer et al. Paper XXX 2018A&A...613L...8N 2018A&A...613L...8N
Rubele et al. Paper XXXI 2018MNRAS.478.5017R 2018MNRAS.478.5017R
Zivkov et al. Paper XXXII 2018A&A...620A.143Z 2018A&A...620A.143Z
Groenewegen et al. Paper XXXIII 2019A&A...622A..63G 2019A&A...622A..63G
(End) Patricia Vannier [CDS] 28-Jul-2017