Fermi LAT Weekly report N. 357

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Covered period: 2015 April 6 - 12
LAT Mission week: 357.57 - 358.57

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• Flare of the optically-selected and polarized BL Lac object SDSS J084411.67+531250.7 (NVSS J084411+531250, BZB J0844+5312, 3FGL J0843.9+5311) on April 6 with daily averaged flux of 0.3e-6, about 50 times the averaged flux reported in the 3FGL catalog. A high-urgency ToO observation by Swift showed a X-ray and optical-UV spectral energy distribution brightening of a factor of about 5 with respect to archival observations. This correlated flaring activity observed by Fermi and Swift confirms the identification of 3FGL J0843.9+5311 (2FGL J0843.9+5312) with SDSS J084411.67+531250.7. More details in ATel#7358.
• Flare of the flat spectrum radio quasar PKS 0130-17 (OC -150, TXS 0130-171, 3EG J0130-1758, 3FGL J0132.6-1655, z=1.02) on April 12, with daily averaged flux 1.9e-6, about 35 times greater than the average flux reported in the 3FGL catalog. More details in ATel#7393.
• The VHE gamma-ray blazar PKS 1441+25 is detected in high activity state on April 7 and 10 both with daily averaged flux 0.6e-6 and photon spectral index 1.7.
• PKS 1510-08 detected in high state all week long with daily averaged fluxes between 1.8e-6 and 3.0e-6.
• PKS 0736+01 detected in high state all week long with daily averaged fluxes between 0.9e-6 and 1.4e-6.
• 4C +01.02 (PKS 0106+01) detected in high state all week long with daily averaged fluxes between 0.7e-6 and 1.1e-6.
• Flare of S5 0716+71 in the first part of the week, with daily peak flux 1.6e-6, photon spectral index 1.8 on April 6.
• 3C 454.3 detected all week long with daily averaged fluxes between 0.6e-6 and 1.3e-6.
• Further bright blazars detected most of the week with daily averaged flux between about 0.7e-6 and 1.0e-6: BL Lac, PKS 2032+107, PKS 0426-380, TXS 2241+406, PKS 1424-41.
• Other blazars of the week detected below 0.6e-6: 3C 66A, S4 1849+67, PKS 0402-362, PKS 0454-234,NGC 1275 (Per A), PKS 0308-611, CTA 102, 3C 279, PKS 0502+049, B2 1520+31, S5 1803+78, Mkn 421, Mkn 501, PKS 2155-304, 4C +38.41 (B2 1633+38).
• High-mass gamma-ray binary 1FGL J1018.6-5856 detected in high activity state in some days of the week with daily averaged fluxes between 1.2e-6 and 1.8e-6.

Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
  
Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.
   
For questions and comments please contact:
- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

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