Friday, June 26, 2009

Fermi LAT Weekly Report N. 54



Covered period: 2009.June.8 - 2009.June.14




  • Fermi LAT detected a new Gamma-ray transient in the Galactic Plane: J1057-6027 on June 11th, with the daily flux of (2.4 +/- 0.7)e-6 ph cm-2 s-1. (see ATel #2081).
    The source was not detected on following days.

  • PKS 1510-089 remains in the 1e-6 to 3e-6 daily flux range.

  • PKS 1502+106 shows a steady trend with daily fluxes around 1e-6 ph/cm^2/s.


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:

- H. Yasuda (yasuda[at]hep01.hepl.hiroshima-u.ac.jp) for generic information related to this week

- source contact persons on this page for individual objects.



Wednesday, June 3, 2009

Fermi LAT Weekly Report N. 52



Covered period: 2009.May.25 - 2009.May.31



  • Candidate blazar 4C31.03 (see ATel #2054) seen in day timescales with flux levels reaching 0.8e-6 ph/cm^2/s.

  • PKS 1510-089 remains in the 1e-6 to 2e-6 daily flux range (>100MeV)

  • PKS 1502+106 shows a steady trend with daily fluxes (>100MeV) around 1e-6 ph/cm^2/s.

  • 3C 454.3 showed consistent daily flux levels (>100MeV) just below 1e-6 ph/cm^2/s.

  • S5 0716+714 showed a weekly flux (>100MeV) of 0.3E-6 ph/cm^2/s.

  • Mrk 421 showed consistent daily flux levels (>100MeV) around 0.3e-6 ph/cm^2/s.

  • 3C 273 returns after a low state period, with several daily detections, the highest flux (>100MeV) reaching just above 1e-6 ph/cm^2/s.

  • 3C 279 decreases its activity with a weekly flux (>100MeV) of 0.4e-6 ph/cm^2/s.

  • PKS 2155-304 is active this week with several daily detections at flux (>100MeV) of 0.5e-6 ph/cm^2/s.

  • 3C 66A detected with weekly flux (>100MeV) of 0.4e-6 ph/cm^2/s.

  • PKS 0537-441 (see ATel #1759) detected with weekly flux (>100MeV) of 0.4e-6 ph/cm^2/s.

  • PKS 0454-234 (see ATel #1898) appeared once with daily flux (>100MeV) of 0.6e-6 ph/cm^2/s.

  • 0917+449 (see ATel #1902) appeared in two daily runs with flux (>100MeV) of 0.3e-6 and 0.4e-6 ph/cm^2/s respectively.

  • PKS 0727-115 (see ATel #1919) appeared during the week with flux (>100MeV) of 0.3e-6 ph/cm^2/s.

  • PKS 0250-225 (see ATel #1933) appeared with daily flux (>100MeV) of 0.2e-6 ph/cm^2/s.

  • B2 1520+31 (see ATel #2026) appeared on several days reaching a flux (>100MeV) of 0.5e-6 ph/cm^2/s.

  • PKS 0805-07 (see ATel #2048) detected with a daily flux (>100MeV) of 0.2e-6 ph/cm^2/s.

  • PKS 0440-00 (see ATel #2049) decreases to a weekly flux (>100MeV) of 0.3e-6 ph/cm^2/s.

  • LSI +61 303 still bright and detected in some days of this week.


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:
W. McConville (wmcconvi[at]umd.edu) for generic information related to this week;
- for PKS 1510-089 the LAT contact person is A. Tramacere (tramacer[at]slac.stanford.edu);
- for PKS 1502+106 the LAT contact person is S. Ciprini (stefano.ciprini[at]pg.infn.it);
- for 3C 454.3 the LAT contact people are B. Lott (lott[at]cenbg.in2p3.fr) and G. Madejski (madejski[at]slac.stanford.edu););
- for Mrk 421 the LAT contact people are V. Lonjou (vincent.lonjou[at]cesr.fr) and D. Paneque (dpaneque[at]slac.stanford.edu););
- for 3C 273 the LAT contact people are J. Chiang (jchiang[at]slac.stanford.edu) and W. Collmar (wec[at]mpe.mpg.de););
- for 3C 279 the LAT contact people are Greg Madejski (madejski[at]slac.stanford.edu) and Werner Collmar (wec[at]mpe.mpg.de);
- for PKS 2155-304 the LAT contact person is B. Giebels (berrie[at]llr.in2p3.fr););
- for 3C 66A the LAT contact person is L. Reyes (lreyes[at]kicp.uchicago.edu););
- for PKS 0537-441 the LAT contact person is G. Tosti (tosti[at]pg.infn.it););
- for PKS 0454-234 the LAT contact person is D. Gasparrini (dario.gasparrini[at]asdc.asi.it););
- for 0917+449 the LAT contact person is W. McConville (wmcconvi[at]umd.edu););
- for PKS 0727-115 the LAT contact person is A. Tramacere (tramacer[at]slac.stanford.edu););
- for 0250-225 the LAT contact person is W. McConville (wmcconvi[at]umd.edu););
- for B2 1520+31 the LAT contact person is D. Gasparrini (dario.gasparrini[at]asdc.asi.it););
- for PKS 0805-07 the LAT contact person is S. Ciprini (stefano.ciprini[at]pg.infn.it););
- for PKS 0440-00 the LAT contact people are S. Ciprini (stefano.ciprini[at]pg.infn.it) and F. Longo (francesco.longo[at]ts.infn.it);
- for LSI +61 303 the LAT contact person is R. Dubois (richard[at]slac.stanford.edu);