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Flaring Blazars from CRTS

ATEL # 2955; A.A. Mahabal, A.J. Drake, S.G. Djorgovski, M.J. Graham, R. Williams, C. Donalek (Caltech); D. Stern (JPL); J. Prieto (OCIW); M. Catelan (PUC); E. Christensen (Gemini Observatory); E.C. Beshore, S.M. Larson (LPL/UA); R.H. McNaught (ANU).
on 19 Oct 2010; 19:16 UT
Password Certification: Ashish Mahabal (

Subjects: Optical, Transients

We report the discovery of several flaring radio sources and blazars by the Catalina Real-time Transient Survey (CRTS) during the period from 2010-09-15 to 2010-10-15 UT. All these were announced in real-time on the CRTS website.

IDDisc. DateRADecDisc. MagComment
CSS101014:011749-2111062010-10-1401:17:48.74-21:11: 6.417.65PKS_0115-214 z=1.49
CSS101007:020626-1150402010-10-0702:06:26.06-11:50:39.717.86CGRaBS J0206-1150 z=1
CSS101003:023945-0234412010-10-0302:39:45.47-02:34:40.618.08 0237-027 z=1.116
SSS100917:215122-2742232010-09-1721:51:21.89-27:42:22.916.80z=1.485 QZ_J215121

The redshift for CSS100915:022634+093844 is based on FeII and MgII lines from a Keck spectrum dated 2010-10-04UT.

More information and finding charts can be found at
All CRTS Blazar discoveries are available from and

Follow-up is requested. A search for the corresponding gamma-ray flares in the Fermi GST data would be useful.

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R. E. Rutledge , Editor
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