Dataset Open Access

Wide-field Infrared Survey Explorer (WISE) Catalog of Periodic Variable Stars

Xiaodian Chen

 Wide-field Infrared Survey Explorer (WISE) Catalog of Periodic Variable Stars
 Xiaodian Chen, Shu Wang, Licai Deng, Richard de Grijs and Ming Yang

 We have compiled the first all-sky mid-infrared variable-star catalog based on Wide-field
 Infrared Survey Explorer (WISE) five-year survey data. Requiring more than 100 detections
 for a given object, 50,282 carefully and robustly selected periodic variables are discovered,
 of which 34,769 (69%) are new. Most are located in the Galactic plane and near the equatorial
 poles. A method to classify variables based on their mid-infrared light curves is established
 using known variable types in the General Catalog of Variable Stars. Careful classification of
 the new variables results in a tally of 21,427 new EW-type eclipsing binaries, 5654 EA-type 
 eclipsing binaries, 1312 Cepheids, and 1231 RR Lyraes. By comparison with known variables 
 available in the literature, we estimate that the misclassi- fication rate is 5% and 10% for
 short- and long-period variables, respectively. A detailed comparison of the types, periods, 
 and amplitudes with variables in the Catalina catalog shows that the independently obtained 
 classifications parameters are in excellent agreement. This enlarged sample of variable 
 stars will not only be helpful to study Galactic structure and extinction properties, 
 they can also be used to constrain stellar evolution theory and as potential candidates for
 the James Webb Space Telescope.
 
These supplementary materials contain ALLWISE and NEOWISE-R single-exposure photometry tables of variables list
 in Table 2 and 6 of the paper, and light curve figures for the 50,282 periodic variables in Table 2. 
SourceID is identifier join these attachments to Table 2 and 6.

Example: For variable star WISEJ094812.4+093448 in Table 2, the SourceID=170 is adopted to search 
corresponding single-exposure information in both 'allwise12.txt' and 'neowise12.txt'.  

File Description:

allwise12.txt                Single exposure photometry data of variables from ALLWISE.

   Bytes Format Units   Label   Explanations
----------------------------------------------------------------------------------------- 
   1- 8  I5     ---  SourceID   Internal source identifier          
  10- 20 F11.7  deg     RAdeg   Right Ascension in decimal degrees (J2000)                 
  22- 32 F11.7  deg     DEdeg   Declination in decimal degrees (J2000) 
  34- 47 F14.8  day      MJD    Modified Julian date of the mid-point of the observation     
  49- 54 F6.3   mag     W1mag   Single exposure WISE W1 (3.35 micron) band magnitude
  56- 63 F6.3   mag    eW1mag   W1 band uncertainty
  65- 77 F6.3   mag     W2mag   Single exposure WISE W2 (4.6 micron) band magnitude 
  79- 86 F6.3   mag    eW1mag   W2 band uncertainty
-----------------------------------------------------------------------------------------
 
  
neowise12.txt                Single exposure photometry data of variables from NEOWISE-R.

   Bytes Format Units   Label   Explanations
-----------------------------------------------------------------------------------------
   1- 8  I5     ---  SourceID   Internal source identifier          
  10- 21 F11.7  deg     RAdeg   Right Ascension in decimal degrees (J2000)                 
  23- 34 F11.7  deg     DEdeg   Declination in decimal degrees (J2000) 
  36- 44 F6.3   mag     W1mag   Single exposure WISE W1 (3.35 micron) band magnitude
  46- 54 F6.3   mag    eW1mag   W1 band uncertainty
  56- 64 F6.3   mag     W2mag   Single exposure WISE W2 (4.6 micron) band magnitude 
  66- 74 F6.3   mag    eW1mag   W2 band uncertainty
  76- 90 F14.8  day      MJD    Modified Julian date of the mid-point of the observation
-----------------------------------------------------------------------------------------

 
figure0.zip -- figure23.zip  Full figures of 50282 WISE variables. They are divided into 24 
packages by the order of Right Ascension.

Files (3.8 GB)
Name Size
allwise12.txt
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figure0.zip
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figure1.zip
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figure10.zip
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figure11.zip
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figure12.zip
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figure2.zip
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figure22.zip
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figure23.zip
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figure3.zip
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figure5.zip
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figure6.zip
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figure7.zip
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figure8.zip
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figure9.zip
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neowiser12.txt
md5:ccd35d4e8e892d23d3f9eda6f37224f5
937.8 MB Download
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