Thursday, August 28, 2014

Fermi LAT Weekly Report N. 324



Covered period: 2014.Aug.18 - 2014.Aug.24
LAT Mission week: 324.57 - 325.57

  • On Aug. 18 and 19 the Crab Nebula was observed in flaring state showing an average daily flux of (7.5±0.6) and (5.4±0.7), respectively (ATel #6401).
  • 3C 454.3 was detected all week long with daily averaged fluxes between (5.2 ± 1.4) and (2.1 ± 0.6).
  • PKS 0502+049 was detected in flaring state on Aug. 22 and 23, reaching average daily fluxes of (0.9 ± 0.2) and (0.7 ± 0.2), respectively. It corresponds to approx. 20-30 times the flux reported for this source in the 2FGL catalog.
  • Sporadic daily detections of blazars (daily averaged fluxes below 1 unit): PKS 1510–08, B2 1520+31, S5 0716+71, AO 0235+164, 4C +55.17 (OK 591, S4 0954+55).

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, August 20, 2014

Fermi LAT Weekly Report N. 323



Covered period: 2014.Aug.11 - 2014.Aug.17
LAT Mission week: 323.57 - 324.57

  • New LAT source positionally consistent with the unknown redshift FSRQ TXS 1731+152A (aka CRATES J1733+1513). The source was detected on Aug. 13 with a daily averaged flux of (0.7 ±  0.1). See ATel #6395.
  • 3C 454.3 was detected all week long with daily averaged fluxes between (5.6 ± 1.0) and (2.6 ± 0.7).
  • 3C 279 was detected on Aug. 12 and 14 with a daily averaged averaged flux of (0.9 ± 0.3) and (1.7 ± 0.3) respectively.
  • Sporadic daily detections of blazars (daily averaged fluxes below 1 unit): PKS 1510–08, 4C +21.35 (PG 1222+216), PKS B1424–418, PKS 2326–502, PKS 0402–3621ES 1215+303, 4C +38.41 (B2 1633+38).
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.

Monday, August 18, 2014

Fermi LAT Weekly Report N. 322



Covered period: 2014.Aug.04 - 2014.Aug.10
LAT Mission week: 322.57 - 323.57

  • PKS 0402-362 was detected on August 4, 5, and 6 with a daily averaged flux of (1.4 +/- 0.2), (0.8 +/- 0.2), and (0.4 +/- 0.2), respectively. Following this rare flare, Swift TOO observations were made. See ATel#6391.
  • PKS 1510-08 was detected from August 5 to 10 with a daily averaged flux between (1.0 +/- 0.2) and (1.4 +/- 0.2).
  • 3C 454.3 was detected from August 4 through 9 with a daily averaged flux between (5.8 +/- 1.0) and (2.9 +/- 0.8).
  • 3C 279 was detected on August 4 and 5 with a daily averaged flux of (1.6 +/- 0.5) and (0.8 +/- 0.3) respectively.
  • S5 0716+71 was detected on August 9 and 10 with a daily averaged flux of (0.2 +/- 0.1) and (1.1 +/- 0.3) respectively.
  • Sporadic daily detections of blazars (fluxes below 1X10-6): PKS 1424-41, NGC 1275, Mrk 501, PG 1553+113, PKS 0426-380.

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:
- R. Ojha (Roopesh.Ojha[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Friday, August 8, 2014

Fermi LAT Weekly report N. 321


Covered period: 2014.Jul.28 - 2014.Aug.3
LAT Mission week: 321.57 - 322.57

  • The gravitational lensed blazar PKS 1830-211 was in a high state between July 28 and July 29 with daily fluxes between (0.7 ± 0.1) and (1.1 ± 0.1). See ATel#6361.
  • 3C 279 was detected all week with a daily averaged flux between (0.9 ± 0.1) and (4.8 ± 0.7).
  • 3C 454.3 was detected all week with a daily averaged flux between (2.9 ± 0.9) and (7.0 ± 1.0).
  • PKS 1510-08 was detected all week with a daily averaged flux between (0.6 ± 0.2) and (1.3 ± 0.2).
  • PKS 0402-362 was detected on Aug 2 and Aug 3 with daily averaged fluxes between (0.5 ± 0.1) and (1.5 ± 0.2).
  • Sporadic daily detections of other blazars (fluxes below 1): PKS 1424-41, Mkn 421, S5 0716+71, PKS 0502+049, PKS 1622-29, 4C +01.02 (PKS 0106+01) and the NLSy1 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, July 30, 2014

Fermi LAT Weekly report N. 320


    Covered period: 2014 July 21 - July 27
    LAT Mission week: 320.57 - 321.57



    • Lens B0218+35 (S3 0218+35) was detected on July 23 and 26 with daily flux of 0.6 and 0.1, respectively. On July 26 the source was detected with a hard spectral index of 1.7. 
    • 3C 454.3 detected all week long with daily flux between 2.1 and 5.6.
    • 3C 279 observed on July 21, 22, 25, 26 and 27 with daily flux from 0.9 to 3.1.
    • PKS 1510–08 detected on July 21, 22, 23, 26 and 27 with daily flux between 0.9 and 1.3.                 
    • Sporadic activity (daily fluxes below 1.0) observed from PKS 1424-41PKS 0426-380S5 1803+784C +55.17 (OK 591, S4 0954+55)Mkn 421PKS 0502+049S4 1144+401RXS J053629.4–334302.
      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, July 23, 2014

    Fermi LAT Weekly report N. 319



      Covered period: 2014 July 14 - July 20
      LAT Mission week: 319.57 - 320.57


      • Lens B0218+35 (S3 0218+35) still detected in flaring state on July 14 at a daily flux of (0.6 ± 0.1) and hard photon index of 1.6 ± 0.1 (see ATel #6316). The gamma-ray outburst lasted approximately for two days, i.e. from July 13 to July 14. According to previous gamma-ray flaring activity the gravitationally lensed delayed emission is expected 11.46 +/- 0.16 days later.
      • PKS 1622-29  (z=0.815) observed in flaring state on July 18 at a flux of 1.2 +/- 0.2 (see ATel #6327).
      • 3C 454.3 detected all week long with daily flux between 0.9 and 5.
      • 3C 279 observed during the last three days of the week. The highest daily flux (1.6 ± 0.4) was detected on July 19.
      • PKS 0458-02 observed during the last three days of the week at an average daily flux of 0.5.
      • PKS 1510–08 detected all week long with daily flux between 0.5 and 1.3.
      • Sporadic activity (daily fluxes below 1.0) observed from PKS 1441+25, TXS 0937–282, Mrk 421, Mrk 501, PKS 0402–362, PKS 1424-41, B2 1520+31, S5 0716+714,  PKS 1222+216, NGC 1275, PKS 2023–07.

      • 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:
        - S. Buson (buson[at]pd.infn.it) for generic information related to this week
        - Contact persons on this page for individual sources cited above.

      Fermi LAT Weekly report N. 318


      Covered period: 2014 July 7 - July 13
      LAT Mission week: 318.57 - 319.57

      • Lens B0218+35 (S3 0218+357) detected in flaring state on July 13 at a daily flux of (0.6 ± 0.1). The gamma-ray lensed blazar displayed a peculiar hard spectrum with photon index of 1.3 ± 0.1 (see ATel#6316).  
      • New LAT source, Fermi J1433-1806, detected on July 10 at a daily flux of 0.62 ± 0.06 and a photon index of 2.1 ± 0.1 (see ATel#6310). The closest candidate counterpart is PKS 1430-178 (z=2.331).
      • 3C 454.3 detected all week long with flux between 2 and 5.
      • PKS 1730-130 reached a daily flux of (1.2 ± 0.2) on July 10.
      • 4C +21.35 (PKS 1222+216) observed in three days of the week with daily average flux of 0.6.
      • NGC 1275 (Per A) detected in three days of the week reaching a daily flux of (0.9 ± 0.2) on July 10.
      • Sporadic activity (daily fluxes below 1.0) observed from PKS 1510–08, Mrk 421, PKS 2155-304, PKS 2326–502, PKS 0426-380, S5 0716+714, Mrk 501.

      • 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:
        - S. Buson (buson[at]pd.infn.it) for generic information related to this week
        - Contact persons on this page for individual sources cited above.