Thursday, November 29, 2012

Fermi LAT Weekly Report N. 233


Covered period: 2012 November 19 - 2012 November 25
LAT Mission week: 233.57 - 234.57

  • S4 0218+35 was detected on Nov. 19, 20, 21, 22, 23, 25. The daily flux was between (0.8+/-0.2)e-6 and (1.6+/-0.3)e-6.
  • MG1 J123931+0443 was detected on Nov. 21, 22, 23, 24, 25. The daily flux was between (0.8+/-0.2)e-6 and (1.3+/-0.3)e-6.
  • Mrk 421 was detected on Nov. 19, 20, 22, 24. The daily flux was between (0.1+/-0.1)e-6 and (0.5+/-0.1)e-6.
  • S3 0827+41 (OJ 248) was detected on Nov. 21, 22, 23, 25. The daily flux was between (0.6+/-0.2)e-6 and (1.0+/-0.2)e-6.
  • PKS 1424-418 was detected on Nov. 21, 23, 24 with the daily fluxes between (0.5+/-0.2)e-6 and (1.0+/-0.2)e-6.
  • 4C +38.41 was detected on Nov. 19 and 22, with the daily fluxes of (0.8+/-0.2)e-6 and (0.9+/-0.2)e-6.
  • Sporadic daily detections of blazars: CTA 102 (Nov. 20), PKS 0426-380 (Nov. 21), PKS 1510-089 and NGC 1275 (Nov. 22), S2 0109+22 (Nov. 24), TXS 1318+225 and 4C 21.35 (Nov. 25).

Fluxes are in the unit of 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:
- Y. Tanaka (ytanaka[at]hep01.hepl.hiroshima-u.ac.jp) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Wednesday, November 21, 2012

Fermi LAT Weekly Report N. 232


Covered period: 2012.Nov.12 - 2012.Nov.18
LAT Mission week: 232.57 - 233.57

  • PKS 0250-225 was detected three days this week. An Astronomer's Telegram (ATel#4574) was issued on 2012 Nov 15. On 2012 Nov 13 it reached a peak daily averaged flux of (1.0 +/- 0.3) X 10-6.
  • PKS 1424-418 was bright on 2012 Nov 12 with a peak daily averaged flux of (1.6 +/- 0.3) X 10-6.
  • 4C+38.41 was bright on 2012 Nov 14 with a daily averaged flux of (1.7 +/- 0.3) X 10-6.
  • Mkn 421 was detected all week (except Nov. 17) with a daily averaged flux between (0.2 +/- 0.3) X 10-6 and (0.6 +/- 0.3) X 10-6.
  • S4 0218+35 was bright all week but not detected in the daily runs on 2012 Nov 14 and 15. Daily averaged flux was between (0.8 +/- 0.2) X 10-6 and (1.8 +/- 0.2) X 10-6.
  • CTA 102 was detected sporadically with a daily averaged flux between (0.9 +/- 0.3) X 10-6 and (1.6 +/- 0.3) X 10-6.
  • Unassociated source ASPJ141708p354935 was detected on Nov. 17 with a daily averaged flux of (0.1 +/- 0.1) X 10-6 increasing to (0.3 +/- 0.1) X 10-6 on Nov. 18. The gamma ray spectral photon index was fairly hard at around 1.7
  • PKS B1424-418 was detected once with daily average flux (1.3 +/- 0.3) X 10-6.
  • Sporadic daily detections of blazars (fluxes below 1X10-6): PKS 0301-243, PKS 0521-36, PKS B1222+216, PKS 2326-502, PMN J2345-1555, MG1 J123931+0443, PKS 0426-380, PKS 2233-148, NRAO 676, PKS 0454-234, 0827+243, B3 1343+451, PKS 2155-304, PKS 1510-08, PKS 2326-502, S5 1803+78

Fluxes are in the unit of 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:
- M. Dutka (ditko86[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Wednesday, November 14, 2012

Fermi LAT Weekly Report N. 231



Covered period: 2012.Nov.05 - 2012.Nov.11

LAT Mission week: 231.57 - 232.57







  • S4 0218+35 was detected every day with daily fluxes ranging from (1.5±0.3) X 10-6 to (4.0±0.5) X 10-6, reaching the peak value on Nov. 6.

  • 4C +38.41 was detected every day with a daily fluxes ranging from (0.9±0.2) X 10-6 to (1.7±0.3) X 10-6, reaching the peak value on Nov. 10.

  • PKS 1424-418 was detected every day with a daily fluxes ranging from (0.9±0.3) X 10-6 to (1.5±0.3) X 10-6, reaching the peak value on Nov. 11.

  • CTA 102 was detected every day with a daily fluxes ranging from (0.8±0.2) X 10-6 to (1.7±0.3) X 10-6, reaching the peak value on Nov. 6.

  • PKS 0521-36 was detected twice with daily fluxes of (0.4±0.2) X 10-6 and (1.0±0.3) X 10-6, reaching the peak value on Nov. 10.

  • Sporadic activity (fluxes below 1 X 10-6): PKS 0716+71 (5), Mkn 421 (4), PKS 2155-304 (4), PKS 0454-234 (2), PKS 1222+216 (2), 4C +21.35 (2), PKS 0426-380 (2), PMN J2345-1555 (2), NGC 1275, PKS 0537-441, BZQ 1239+0443, BZQ 0830+2410.



Fluxes are in the unit of 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:

- T. Venters (toni.venters[at]gmail.com) for generic information related to this week.

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



Fermi LAT Weekly Report N. 230



Covered period: 2012.October.29 - 2012.November.4

LAT Mission week: 230.57 - 231.57







  • PKS 1451-375 detected for the first time ever in γ-rays on Oct. 31 with a daily flux of (1.2±0.3)×10-6 (see ATel #4534).

  • S4 0218+35 was bright all week, with a daily averaged flux between (1.2±0.3)×10-6 and (4.4±0.5)×10-6 on Oct 31.

  • PKS 1424-41 and 4C +38.41 continued their bright activity, being detected almost all week with a daily averaged flux of 1.2×10-6.

  • Mkn 421 this week was detected every day with a daily averaged flux of 0.3×10-6.

  • PKS 0521-36 was bright on Oct. 29 with a daily flux of (1.5±0.2)×10-6.

  • MG1 J123931+0443 bright on Oct 30 and 31 with a daily flux of (1.0±0.3))×10-6 and (0.7±0.2))×10-6 respectively.

  • Sporadic daily detections of blazars (fluxes below 1×10-6): PKS 0426–380, PKS 2326–502, S5 0716+714, S3 0827+24, 4C +21.35, CTA 102 and PMN J0017–0512.



Fluxes are in the unit of 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:

- D. Bastieri (denis.bastieri[at]unipd.it) for generic information related to this week.

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



Wednesday, November 7, 2012

Fermi LAT Weekly Report N. 229



Covered period: 2012.October.22 - 2012.October.28
LAT Mission week: 229.57 - 230.57

  • S4 0218+35 was bright all week, with a daily averaged flux between (0.8+/-0.2)X10-6 and (3.4+/-0.4)X10-6 on Oct 24.
  • NRAO 676 was bright and detected every day this week with a daily averaged flux between (0.9+/-0.2)X10-6 and (3.1+/-0.8)X10-6 on Oct 22.
  • PKS 1424-41 continued its bright activity, being detected all week with a daily averaged  flux of 1.2 X10-6.
  • 4C +38.41 was bright and detected every day this week with a daily averaged flux between (1.3+/-0.2)X10-6 and (1.9+/-0.3)X10-6.
  • CTA 102 was bright on Oct 22 with a daily flux of (1.6+/-0.3)X10-6 then was sporadically detected for the rest of the week.
  • BL Lac was detected only on Oct 28 with a daily flux of  (0.6+/-0.2)X10-6
  • Sporadic daily detections of blazars (fluxes below 1X10-6): PKS 0521-36, S3 0827+24, PKS 2155-304, B3 1343+451, 4C +01.28, PKS 0454-234, 0827+243, MG1 J123931+0443.
Fluxes are in the unit of 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:
- D. Gasparrini (gasparrini[at]asdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.