Tuesday, July 15, 2014

Fermi LAT Weekly report N. 317


Covered period: 2014 June 30 - July 6
LAT Mission week: 317.57 - 318.57

  • TXS 0943+105 (GB6 J0946+1016, MG1 J094636+1017, z=1.0045 +/- 0.0005) was discovered in outburst during the week, peaking on July 2 with daily flux level of  (0.8 +/- 0.3)E-6  (25 times the 2FGL catalog flux). This is the first high activity state reported from this source since the beginning of the Fermi mission (see ATel#6292).
  • 3C 454.3 detected all the week with a daily flux level ranging between about 2.2E-6 and 4.7E-6.
  • PKS 1510-08 detected in declining phase during the week, from a daily flux level of 1.7E-6 to 0.5E-6.
  • AO 0235+164 is back being detected in three days of the week with daily flux about 0.4E-6.
  • Further bright blazars detected in some days of the week with daily flux in the range of about 0.7E-6 to 1.0E-6:  NGC 1275 (Per A), PKS 1424-41, PKS 1730-13, PKS 2326-502.
  • Other blazars detected in some days of the week (with daily flux lower than about 0.5E-6): Mkn 421, Mkn 501, PKS 0426-380, PKS 0308-611, 4C +21.35 (PG 1222+216), 4C +01.02 (PKS 0106+01), PKS 1144-379, OJ 14 (PKS 0808+019), 1ES 1959+650, S3 0218+35 (gravitational lens B0218+357).
  • GRB detected by the GBM during the week: GRB 140703A (GCN-Circ.#16512) and GRB 140706A (GCN-Circ.#16537).

  
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.


Friday, July 11, 2014

Fermi LAT Weekly report N. 316


Covered period: 2014.June.23 - 2014.Jun.29
LAT Mission week: 316.57 - 317.57

  • 3C 454.3 is active during whole week reaching a daily flux of 12.3 X 10-6 on Monday 23rd.
  • PKS 1510–089 detected in the first part of this week (daily flux above 1 X 10-6). 
  • Ton 599 , S5 0716+71, PKS 0447–439, PKS 2326–502, NGC 1275, PKS 1424–41, Mkn 421, S5 0716+71, S2 0109+22, 4C +21.35 all detected in one or two days of the week (flux below 1 X 10-6 ).
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.

Tuesday, June 24, 2014

Fermi LAT Weekly report N. 315


Covered period: 2014.June.16 - 2014.Jun.22
LAT Mission week: 315.57 - 316.57

  • The FSRQ 3C 454.3 was detected all week long with daily fluxes above 4.4 units. The maximum gamma-ray flux during the week was reached on Jun. 22 with a flux of (13.3 ± 0.6) units.
  • PKS 2326–502 was detected on Jun. 18 with a daily flux of (1.0 ± 0.2) units.
  • PKS 1510–08 was detected from Jun. 20 to 22 with fluxes (1.6 ± 0.4), (1.8 ± 0.4) and (1.5 ± 0.3), respectively.
  • Sporadic daily detections of blazars (fluxes below 1): PKS B1424–418, NGC 1275, OC 457, PKS 2155–304, 4C +21.35, PKS 0426–380, S5 0716+71, PMN J2345–1555, S4 1144+40, 1ES 1215+303.

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:
- J. Becerra (josefa.becerra[at]nasa.gov) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Wednesday, June 18, 2014

Fermi LAT Weekly report N. 314


Covered period: 2014.June.9 – 2014.June.15
LAT Mission week: 314.57 - 315.57

  • The FSRQ 3C 454.3 was detected in high state all week long (daily flux above 3 × 10–6). The peak of the gamma-ray emission was reached on Jun. 15 when the observed source flux was (1.4 ± 1)× 10–5. Further details are reported in ATel #6236.
  • PKS 1424–418 was detected with flux equal to 0.8 × 10–6 on Jun. 13 and 15.
  • PKS 1510–08 was detected with flux above 1 x 10–6  on June 12, 13 and 15.
  • Sporadic activity (daily fluxes below 1.0 × 10–6) observed from S5 0716+71, PKS 0426–380, PKS 0454–234, NGC 1275, PKS 1346-112, S5 0836+71, 4C +71.07, 3C 279, S5 1044+71, B2 1144+40, PKS 1824-58, PKS 0727-11, 4C +50.11.
Fluxes are in the unit of photons cm–2s–1 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:
- S. Buson (sara.buson[at]pd.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.



Friday, June 13, 2014

Fermi LAT Weekly report N. 313


Covered period: 2014.June.2 - 2014.Jun.8
LAT Mission week: 313.57 - 314.57

  • New LAT source detected from June 5 to June 7 positionally coincident with PKS 0131-522 (z=0.02). The source was detected with daily fluxes between (0.4+/-0.1) and (0.6+/-0.2), see Atel #6223.
  • 3C 454.3 was detected all the week with daily averaged fluxes between (2.2 ± 0.4) and (7.4 ± 0.6).
  • PKS 1510–08 was detected on June 2 with a daily flux of (1.3 ± 0.4).
  • PKS 2326–502 was detected on June 4 and June 6 with daily fluxes of (1.1 ± 0.2) and (0.7 ± 0.2) respectively.
  • PKS B1424–418 was detected from June 4 to June 6 with daily fluxes between (0.7 ± 0.2) and (1.0 ± 0.2).
  • Sporadic daily detections of blazars (fluxes below 1): PKS 0426–380, NGC 1275, PKS 0454–234, S5 0716+71, PMN J2345–1555.
  • 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:
    - J. Becerra (josefa.becerra[at]nasa.gov) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


Tuesday, June 10, 2014

Fermi LAT Weekly report N. 312


Covered period: 2014.May.26 - 2014.Jun.1
LAT Mission week: 312.57 - 313.57

  • 3C 454.3 was detected all week with a daily averaged flux between (1.7 ± 0.7) and (2.6 ± 0.3).
  • PKS 1424–41 was detected all week with a daily averaged flux between (0.3 ± 0.2) and (1.2 ± 0.3).
  • PKS 2142-75 (ATel #6208) was detected all week with a daily averaged flux between (0.7 ± 0.2) and (1.2 ± 0.3).
  • PKS 1510-089 was detected on May 27 and on May 28 with daily averaged fluxes between (0.7 ± 0.3) and (1.3 ± 0.4).
  • S5 0836+71 was detected on May 27, May 28 and May 29 with daily averaged fluxes between (0.5 ± 0.2) and (1.5 ± 0.4).
  • Sporadic daily detections of blazars (fluxes below 1): S4 1144+40, PKS 2326-502, Mkn 421, PKS 0426-380, PMN J2345–1555, S5 0836+71, PMN J0948+0022.

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:
- F. Krauss (Felicia.Krauss[at]sternwarte.uni-erlangen.de) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Wednesday, May 28, 2014

Fermi LAT Weekly report N. 311


Covered period: 2014 May 19-25
LAT Mission week: 311.57 - 312.57

  • PKS 2142-75 was discovered in outburst during the week, peaking on May 21 with daily flux level of 2.7E-6 (22 times the 2FGL catalog flux) and 6 hour interval flux of 4.8E-6 (40 times the 2FGL catalog flux). These values represent the historical maximum GeV flux of this FSRQ, also detected all the other days of the week in high state (daily flux1E-6). ATel#6157  issued on data of May 20 during the rising part of the flare.
  • Rapid flare of NRAO 530 (PKS 1730-13) detected on May 23 with a daily flux of 1.7E-6 (20 times the 2FGL flux).
  • PKS 2155-304 (ATel#6148) detected in a high-flux state (daily flux about 1E-6) during the first days of the week.
  • 3C 454.3 detected with a daily flux level ranging between about 2.0E-6 and 3.0E-6 during the week.
  • Further bright blazars detected in some days of the week with daily flux in the range of about 0.7E-6 to 1.2E-6: 4C +21.35  (PG 1222+216), PKS 1510-08, PKS 1424-41, 3C 279, Ton 599, PMN J2345-1555, B2 1504+37 and NGC 1275  (Per A, 3C 84).
  • Other blazars detected in some days of the week (with daily flux lower than about 0.6E-6): S5 1044+71, Mkn 421, 3C 66A, S5 0716+71, S5 0836+71, PKS 2326-502, PKS 0426-380, TXS 0639-032  (PMN J0641-0320).
  • Galactic plane source Fermi J1057-6027 (2FGL J1056.2-6021) detected with daily flux level of about 1E-6 on May 21 and 22.
  • Galactic plane source consistent with 2FGL J1045.0-5941 (Eta Carinae and PSR J1048-5832 nearby) detected on May 24.
  • GRB detected by the LAT during the week: GRB 140523A (GCN-Circ.#16322).

  
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.