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.

    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.