Monday, January 1, 2018

NOTE


The weekly summary reports
are now unevenly ingested (since feb. 2017)


 

Tuesday, June 6, 2017

Fermi LAT Weekly report N. 469


Covered period: 2017 May 29 - June 4
LAT Mission week: 469.57-470.57


  • Flare of 3C 345 detected with daily flux 1.8e-6 on May 31. The 6h flux, on the same day, is 2.9e-6. The source is detected also on May 30 and June 1 and 2. More details in GCN/FERMI NOTICE #1496330375 and ATel#10453.
  • CTA 102 detected all week with daily fluxes between about 1.0e-6 and 2.9e-6.
  • 4C +28.07 (B2 0234+28) detected all week with daily fluxes between about 0.6e-6 and 1.0e-6.
  • 3C 279 detected all week with daily fluxes between about 0.5e-6 and 0.9e-6.
  • Other blazars detected, also sporadically, during the week with daily flux around or below 0.5e-6: TXS 2241+406, PKS 2023-07, PKS 2247-131, PKS 1424-41, PKS 1502+106, Mkn 421, S4 0917+44, PKS 2155-304, S4 1030+61, S5 1044+71, ON 246, PKS 0502+049, 3C 454.3 (flux 0.8e-6 on May 30), PKS 0426-380, S4 0917+44, AP Lib, PKS 0514-459, NGC 1275, GB6 J1542+6129, BL Lac (flux 0.8e-6 on June 3), PG 1553+113, Ton 599, PKS 0346-27, PMN J2345-1555.

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]ssdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.
 


Fermi LAT Weekly report N. 468


Covered period: 2017 May 22-28
LAT Mission week: 468.57-469.57


  • 3C 279 detected all week with daily fluxes between about 0.8e-6 and 1.6e-6.
  • CTA 102 detected all week with daily fluxes between about 0.9e-6 and 1.5e-6.
  • Further bright blazars detected, also sporadically, during the week with daily flux between about 0.6e-6 and 1.0e-6: 4C +01.02 (PKS 0106+01), 3C 454.3, 4C +28.07 (B2 0234+28).
  • Other blazars detected, also sporadically, during the week with daily flux around or below 0.5e-6: PKS 1936-623, S5 0716+71, S4 1749+70, S5 1044+71, BL Lac, Ton 599, PKS 1424-41, Mkn 421, PKS 2155-304, NGC 1275, 3C 66A, PKS 1502+106, PG 1553+113, PMN J1544-0643 (candidate), 1ES 1959+650, BL Lac, S4 1030+61, B3 1343+451, B2 2308+34, PKS 0426-380, ON 246, OG 50, PKS 1502+106, Ton 599

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]ssdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.
 


Wednesday, April 26, 2017

Fermi LAT Weekly report N. 463


Covered period: 2017 April 17-23
LAT Mission week: 463.57-464.57


  • Rapid outburst of CTA 102 detected on April 19 with a daily flux level of 13.2e-6 and corresponding photon spectral index of 1.9. The peak 6-hour integrated flux is 21.1e-6, about 130 times greater than the 3FGL flux, and two times the Vela flux. It decreased to a daily flux level of 5.9e-6 on April 20. More details in ATel#10292 and Flare CGCN/FERMI NOTICE #1492702671.
  • Flare of S5 1044+71 with daily flux 1.4e-6 on April 23. Peak 6-hour interval flux of 1.9e-6 (28 times the 3FGL flux). See also the Flare GCN/FERMI NOTICE #1493048036. Detected all the other days of the week.
  • Flare of 4C +28.07 (B2 0234+28) with daily flux 1.3e-6 on April 22. Detected all the other days of the week with daily fluxes above 0.7e-6.
  • 3C 279 detected all week with daily fluxes between about 0.7e-6 and 1.0e-6.
  • 3C 454.3 detected all week with daily fluxes between about 1.0e-6 and 1.5e-6.
  • 4C +01.02 (PKS 0106+01) detected all week in high state with daily fluxes between about 0.6e-6 and 1.0e-6.
  • Other blazars detected, also sporadically, during the week with daily flux around or below 0.5e-6: 1ES 1215+303, Mkn 421, PKS 2155-304, 1ES 1959+650, NGC 1275, PKS 2247-131, B2 1732+38A, 4C +38.41 (B2 1633+38), PKS 1424-41, PG 1553+113, 4C +31.03 (B2 0110+31), PMN J2250-2806, PKS 0426-380, 3C 66A, PKS 1954-388, 3C 66A, B2 0748+33, B2 1520+31, GB6 J1542+6129, PKS 0336-01.
  • Preliminary there is not an evident detection in the days of the week of the potential source at the coordinates reported by AGILE in ATel#10282.

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]ssdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.
 


Fermi LAT Weekly report N. 462


Covered period: 2017 April 10-16
LAT Mission week: 462.57-463.57


  • CTA 102 detected all week in high state with daily fluxes between about 1.1e-6 and 2.5e-6. See also the Flare GCN/FERMI NOTICE #1492356303.
  • 3C 454.3 detected all week with daily fluxes between about 1.4e-6 and 2.1e-6.
  • PKS 2247-131 detected all week with daily fluxes between about 0.6e-6 and 1.2e-6.
  • 3C 279 detected almost all week with daily fluxes between about 0.5e-6 and 1.2e-6.
  • Flare of the VHE blazar 1ES 1215+303 (B2 1215+30, ON 325) with daily flux 0.8e-6 on April 13. More details in ATel#10270.
  • Flare of PMN J2141-6411 with daily flux 0.4e-6 on April 10.
  • Further bright blazars detected, also sporadically, during the week with daily flux between about 0.7e-6 and 0.8e-6: 3C 279, 3C 273, PKS 1510-08, 4C +01.02 (PKS 0106+01).
  • Other blazars detected, also sporadically, during the week with daily flux around or below 0.5e-6: NGC 1275, S5 1044+71, S4 1030+61, BL Lac, PKS 1424-41, PKS 1441+25, 3C 66A, Mkn 421, PKS 1502+106, PKS 1510-08, S5 0716+71, PG 1553+113, PKS 2023-07, PKS 2155-304, 3C 66A, 4C +31.03 (OC 317), 4C +28.07, 4C +55.17, 4C +31.03, PKS 0447-439, PKS 0426-380, PKS 0438-43, B2 1436+37B, B3 1343+451, RX J0115.7+2519, PMN J1332-1256, S5 1803+78.

    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.
     

Tuesday, April 11, 2017

Fermi LAT weekly report N. 461


Covered period: 2017 Apr 3 - 9
LAT Mission week: 461.57-462.57


  • High-redshift, z=2.4, blazar B2 1436+37B with flux of 0.3 +/- 0.1 on April 6 and 9. That is 8x its 3FGL J1438.7+3710 flux.
  • VHE blazar, 1ES 1215+303, with 1-day flux on April 9 of 0.2 +/- 0.1, that is 4x its 3FGL value. Its peak 6-hr flux is ~0.5 +/- 0.1 with photon index 1.8 +/- 0.2. Its peak LAT flux has reached ~1.0 in the past. See: http://adsabs.harvard.edu/abs/2017ApJ...836..205A
  • New LAT source on April 7 with 1-day flux 0.4 +/- 0.1 (peak 6-hr flux of 0.6 +/- 0.2) that is positionally consistent with z=0.381 blazar, PKS 1200-051
  • Gamma-ray emission from Cygnus X-3 detected by Fermi/LAT at the onset of a major radio flare on 2017 April 3. See: http://www.astronomerstelegram.org/?read=10243
Fluxes are in the unit of 10-6 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:
- C.C. Cheung (Teddy.Cheung [at] nrl.navy.mil) for generic information related to this week

- Contact persons on this page for individual sources cited above.

Fermi LAT Weekly report N. 459


Covered period: 2017 March 20-26
LAT Mission week: 459.57-460.57


  • CTA 102 detected all week in high state with daily fluxes between about 2.2e-6 and 3.6e-6.
  • 3C 279 detected all week in high state with daily fluxes between about 1.2e-6 and 3.5e-6.
  • 3C 454.3 detected all week with daily fluxes between about 1.0e-6 and 2.4e-6.
  • 4C +01.02 (PKS 0106+01) detected all week with daily fluxes between about 0.7e-6 and 1.2e-6.
  • Flare of PKS 2247-131 (source not in the 3FGL catalog) on March 26 with daily flux 1.8e-6 (see also: GCN/FERMI NOTICE #1490628995).
  • Flare of PKS 1830-211 (gravitationally lensed) on March 21 with daily flux about 1.4e-6.
  • No significant excess gamma-ray emission on timescales below one week associated to the cosmic neutrino event IceCube 170321 (see IceCube GCN CIRCULAR#20929 and LAT GCN CIRCULAR#20971).
  • The Crab is observed fluctuating with possible enhanced activity. A daily flux of about 3.3e-6 and of about 4.4e-6  is observed respectively on March 20 and March 25.
  • Further bright blazars detected all week with daily flux between about 0.7e-6 and 0.9e-6: NGC 1275, PKS 1510-08, S5 1044+71, BL Lac, PKS 1424-41.
  • Other blazars of the week (daily flux around or below 0.5e-6): Mkn 421, PKS 0426-380, 3C 66A, TXS 0322+222, PKS 1502+106, 4C +28.07, TXS 2241+406, 4C +28.07, PKS 1502+106, B2 1633+38, PKS 0458-02, 1ES 1215+303 (ON 325), PKS 0507+17, PKS 2155-304, 1ES 1959+650, PMN J0634-2335, TXS 0628-240, OJ 287, B2 0748+33, PKS 0447-439, TXS 2358+209, 4C +31.03 (OC 317, B2 0110+31), B2 1520+31, PKS 0447-439.

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.