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Optically flaring Blazars from CRTS

ATEL # 2652; A.A. Mahabal, A.J. Drake, S.G. Djorgovski, M.J. Graham, R. Williams, C. Donalek (Caltech); J. Prieto (OCIW); M. Catelan (PUC); E. Christensen (Gemini Observatory); E.C. Beshore, S.M. Larson (LPL/UA); R.H. McNaught (ANU)
on 28 May 2010; 23:30 UT
Distributed as an Instant Email Notice (Transients)
Password Certification: Ashish Mahabal (

Subjects: Radio, Optical, Request for Observations, Quasars, Transients
Referred to by ATEL #: 2654

We report the discovery of flaring radio sources and blazars by the Catalina Real-time Transient Survey (CRTS) in data from the Catalina Sky Survey during the period from 2010-04-04 to 2010-05-22 UT. All these were announced in real-time on the CRTS website.

IDDisc. DateRADecDisc. MagComment
CSS100522:151149-0513472010-05-2215:11:48.54-05:13:47.417.40NVSS J151148-051345
FIRST detection
Possible x-ray match
CSS100521:223622+2828572010-05-2122:36:22.46+28:28:57.416.51 z=0.795
HB 2234+282
CSS100517:115911-2228372010-05-1711:59:11.26-22:28:37.317.43 z=0.565
HB 89 1156-221
CSS100516:121759-0029462010-05-1612:17:58.72-00:29:46.015.58 PKS 1215-002
CSS100512:081902+3226382010-05-1208:19:02.31+32:26:37.518.20 z=0.65
IVS B0815+326
x-ray source
CSS100506:135104+0031192010-05-0613:51:04.42+00:31:19.119.21 z=2.084
PKS 1348+007
CRATES J135103+003120
CSS100504:215225+1734372010-05-0421:52:24.79+17:34:37.417.15CGRaBS J2152+1734
CSS100413:132854+1743182010-04-1313:28:54.41+17:43:18.219.16 FIRST source
CSS100408:073324+3650052010-04-0807:33:24.32+36:50:04.717.74 GB6 B0730+3657
FIRST source
NVSS source
CSS100406:102834-0236602010-04-0610:28:34.06-02:36:59.616.37 z=0.476
1WGA J1028
FIRST source
CSS100404:131251-0424502010-04-0413:12:50.84-04:24:49.817.19 z=0.825
CGRaBS J1312-0424

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

Follow-up is requested.

CRTS Transients

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates