Monday, January 1, 2018

NOTE


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


 

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.
 



Thursday, March 16, 2017


Covered period: 2017.Feb.27 - 2017.Mar.5
LAT Mission week: 456.57 - 457.57

  • New source Fermi J0713+5739 was detected on Mar. 5 with daily averaged flux of (0.29 +/- 0.03). For more information see ATel #10149.
  • CTA 102 was detected all week with daily averaged fluxes between (1.1 +/- 0.2) and (3.2 +/- 0.4).
  • 3C 454.3 was detected all week with daily averaged fluxes between (1.0 +/- 0.2) and (1.7 +/- 0.3).
  • S5 1044+71 was detected all week with daily averaged fluxes between (0.7 +/- 0.1) and (1.1 +/- 0.2).
  • 3C 279 was detected Feb. 27 to Mar 2 with daily averaged fluxes between (0.7 +/- 0.2) and (1.4 +/- 0.2).
  • PKS 1510-08 was detected on Feb. 27 with daily averaged flux of (1.0 +/- 0.3).
  • PKS B1424-418 was detected all week with daily averaged fluxes between (0.8 +/- 0.2) and (1.6 +/- 0.3).
  • 4C +01.02 was detected all week with daily averaged fluxes between (0.5 +/- 0.2) and (1.0 +/- 0.2).
  • PKS 2247-131 was detected on Mar. 4 with daily averaged flux of (1.1 +/- 0.3).
  • Sporadic daily detections of blazars (fluxes below 1)2 Mkn 421, PKS 0426-380, 4C +28.07, PKS 0447-439, IC 310, B3 1343+451, PKS 1424+240, NGC 1275, 1ES 1215+303, GB6 J1542+6129.

Fluxes are in the unit of 10-6 photons/cm2/s above 100 MeV. All errors are statistical only.

Note. All the fluxes reported above are from 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:
- B.Carpenter (carpbr01[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Tuesday, February 7, 2017

Fermi LAT Weekly report N. 452


Covered period: January 30 - February 5
LAT Mission week: 452.57-453.57

  • CTA 102 detected all week in outburst state with daily fluxes between 4.8e-6 and 2.1e-6.
  • 3C 454.3 detected all week with daily fluxes between 2.7e-6 and 1.8e-6.
  • PKS 1424–41 detected all week with daily fluxes between 1.5e-6 and 0.8e-6.
  • 3C 279 detected in the first part of the week with daily fluxes between 1.2e-6 and 0.7e-6.
  • Other blazars of the day (daily flux around or below 0.5e-6):
  •  S5 1044+71, NGC 1275, PKS 2155–304, 4C +01.02, PKS 1510–08, PKS 1502+106, B3 1343+451, Mkn 421, 1ES 1215+303, PKS 0048–09, PKS 0426–380, PKS 0447–439, S4 0954+65, PKS 2247-131
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:
- M. Kreter (mkreter[at]astro.uni-wuerzburg.de) for generic information related to this week
- Contact persons on this page for individual sources cited above.

Tuesday, January 31, 2017

Fermi LAT Weekly report N. 451



Covered period: 2017 January 23-29
LAT Mission week: 451.57-452.57

  • CTA 102 bright all week with daily flux range = (4.4 +/- 0.3) to (7.1 +/- 0.4) with peak flux observed on Jan 26
  • Other blazars regularly detected on daily basis throughout the week: 4C +01.02, NGC 1275, PKS 0426–380, S5 1044+71, 3C 279, PKS B1424-418, PKS 2247-131, 3C 454.3
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.

Tuesday, January 10, 2017

Fermi LAT Weekly report N. 448


Covered period: 2017 January 2-8
LAT Mission week: 448.57-449.57


  • CTA 102 detected all week in outburst state with daily fluxes above 10.0e-6 from Jan. 4 to Jan 8. In particular on Jan. 6 and Jan. 7, the source reached the daily flux level of (19.8 +/-0.7)e-6 (with photon index 1.9+/-0.1) and of (18.3 +/-0.7)e-6 (with photon index 2.1+/-0.1) respectively. The 6-hour averaged peak flux of CTA 102 on Jan. 6 was (24.3+/-1.7)e-6 corresponding to about 150 times the averaged 3FGL flux of the source, and about 2.4 times the averaged 3FGL flux of the Vela pulsar. 
  • 3C 454.3 detected all week with daily fluxes between about 1.7e-6 and 2.8e-6.
  • NGC 1275 (Per A, 3C 84) detected all week with daily fluxes between about 0.6e-6 and 0.8e-6. In particular on Jan. 3, NGC 1275 showed a photon index around 1.8 and one possible photon of 241 GeV energy spatially consistent with the source.
  • PKS 1424-41 detected all week with daily fluxes between about 0.7e-6 and 0.9e-6.
  • PKS 0426-380 detected in high state on Jan. 2, Jan. 4 and Jan. 5, each day at a flux level of (1.2+/-0.2)e-6. 
  • S5 1044+71 detected in high state all week with daily fluxes between about 0.6e-6 and 1.0e-6. 
  • S4 0917+62 (OK 630) detected in flaring state on Jan. 4 with daily flux (0.8+/-0.1)e-6. 
  • PKS 0438-43 detected in flaring state on Jan. 3 with daily flux (0.9+/-0.1)e-6. 
  • PKS 0907-023 detected in flaring state on Jan. 4 with daily flux (0.7+/-0.2)e-6. 
  • PMN J2153-1136 detected in flaring state on Jan. 2 with daily flux (0.9+/-0.2)e-6. 
  • PKS 1510-08 detected on Jan. 5 with daily flux about 1.0e-6. 
  • 3C 279 detected in the second paert of the week with daily fluxes between about 0.6e-6 and 0.8e-6. 
  • Other blazars of the day (daily flux around or below 0.5e-6): 1ES 2344+514, 1ES 1959+650, Ton 599, PKS 0736+01, S5 2007+77, B2 2308+34, PKS 0131-522, PKS 0447-439, Mkn 421, Mkn 501, AO 0235+164, S5 1053+70, Mkn 421, BL Lac, PKS 1502+106, PKS 0537-441, TXS 0518+211 (Ver 0521+211), PKS 0208-512, S3 0218+35 (gravitationally lensed), PKS 0035-252, PG 1553+113, 4C +28.07 (B2 0234+28), 4C +01.02 (PKS 0106+01), 4C +31.03 (B2 0110+31), 3C 273, PKS 2155-304, PKS 2320-035, PKS 2136-642, PKS 2247-131 .

    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.