Fermi LAT weekly report N. 201

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Covered period: 2012.April.09 - 2012.April.16

LAT Mission week: 201.57 - 202.57

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• BL Lacertae quite active during the week reaching a daily flux of 2.3x10^-6 on April 9th. See ATel #4028. It was also detected on April 14th and 15th with a flux of ~1.4x10-6.
  
  
  
• PKS 1510-089 and S5 0716+71 continue to be detected most of the week reaching the the daily flux of 1x10^-6 and 0.310^-6 respectively.
  
  
• Mrk 421 detected on 11th, 12th and 14th April reaching a daily flux of 0.2x10-6.
  
  
  
• B3 1708+433, PKS 0454-234, PMN J2250-2806, PKS 0426--380, PKS 1424-41 and B2 1520+31 detected in more than one day of the week with a flux below 1x10^-6
  
  
  
• S5 1803+78, PKS 1346-112, S4 0218+35, PKS 1954--388 , PKS B1339--206 and B3 1343+451 detected in just one day of the week with a flux below 1x10^-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:

- S. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week

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

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Fermi LAT weekly report N. 200

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Covered period: 2012.April.02 - 2012.April.08

LAT Mission week: 200.57 - 201.57

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• A new transient gamma-ray source near the Galactic plane (b = -8.1 deg) was detected on April 7, 2012 with a daily flux of (1.0±0.3)x10^-6. On April 8, 2012 the source reached a daily flux of (1.6±0.3)x10^-6. Based on one week of Fermi LAT monitoring data the origin of this gamma-ray source was localized to RA,Dec: 17h17m14.64s, -51h56m49.20s, with a 95% confidence error circle radius of 0.18 deg. The nearby compact radio source PMN J1717-5155 is consistent with the LAT position (ATel #4023), which is probably a gamma-ray blazar (ATel #4029).




• BL Lacertae was detected on April 5 with a flux of (1.4±0.3)x10^-6. It was also detected on April 2nd and 7th with a flux of ~0.6x10^-6.



• PKS 1510-089 was detected with a flux of (1.5±0.5)x10^-6 and (1.2±0.4)x10^-6 on April 4th and 8th, respectively.



• PKS 1424-413 was detected with a flux of (1.2±0.3)x10^-6 on April 6th
.


• Sporadic activity (fluxes below 1x10-6): PKS 2326-502 (April 5-6), PKS 0426-380 (April 6-8), PKS 0537-441 & PKS 2255-282 (April 4), PKS 0716+714 (April 2), B2 1520+31, PKS 2155-304, and Mrk 421 (all April 3 and 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:

For questions and comments please contact:
- F. Schinzel (fsch[at]unm.edu) for generic information related to this week

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

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Fermi LAT weekly report N. 199

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Covered period: 2012.Mar.26 - 2012.Apr.01

LAT Mission week: 199.57 - 200.57

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• BL Lacertae detected in high gamma-ray activity on March 30 and April 1, with a daily flux of (1.4+/-0.3)x10^-6 and (0.7+/-0.2)x10^-6, respectively.



• PKS 0454-234 detected on March 26, 27, 28, 30, and 31, with a daily flux between (0.5+/-0.2)x10^-6 and (0.8+/-0.2)x10^-6.



• Mrk 421 detected on March 26, 29, 31, and April 1 with a daily flux between 0.1x10^-6 and 0.3x10^-6.



• Sporadic activity (fluxes below 1x10^-6): PMN J0531-4827 (March 26), PKS 1244-255 (March 26 and 28), B2 1520+31 (March 27 and 29), PKS 0426-380 (March 28), PKS 2052-47 (March 30).
  

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:

For questions and comments please contact:
- F. D'Ammando (filippo.dammando[at]pg.infn.it) for generic information related to this week

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

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Fermi LAT weekly report N. 198

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Covered period: 2012.March.19 - 2012.March.25

LAT Mission week: 198.57 - 199.57

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• A new gamma-ray source ASPJ053850+143951 in the vicinity of the flat spectrum radio quasar TXS 0536+145 (z=2.69) was detected on high activity on March 22, with a daily flux of (0.6±0.2) X 10^-6. See ATel#3999.


• S5 0716+71 detected on March 19, 20, 21, and 22, with a daily flux between (0.5±0.2) X 10^-6 and (0.6±0.2) X 10^-6.


• PKS 1510-08 detected on high state on March 19, 20, and 21, with a daily flux between (2.7±0.5) X 10^-6 and (1.1±0.3) X 10^-6.


• PKS 0454-234 detected on March 19, 24, and 25, with a daily flux between (0.8±0.2) X 10^-6 and (1.0±0.2) X 10^-6.


• BL Lacertae detected on March 23 and 24 with a daily flux of (0.9±0.2) X 10^-6 and (0.7±0.2) X 10^-6, respectively.


• Sporadic daily detections of blazars (fluxes below 1 X 10^-6 ): B2 2155+31 (March 19), PKS 0537-441 (March 20), B3 1343+451 (March 21), PMN J0531-4827 (March 25), PKS 1244-255 (March 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:

- M. Orienti (orienti[at]ira.inaf.it) for generic information related to this week

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






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Fermi LAT weekly report N. 196

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Covered period: 2012 March 5-11 LAT Mission week: 196.57 -
197.57

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• Significant gamma-ray emission detected by the LAT from relevant Solar Flares occurred on March 5, March 7 and March 9.


• PKS 1510-08 subject to an enduring high gamma-ray brightness state all week (weekly average flux about 3.7E-6).


• S5 0716+71, PKS 1424-41, Mkn 421 are detected most days of the week (below daily level of  1E-6).


• PKS 0454-234,  B3 1343+451, Ton 599, B2 1520+31, BL Lac, Mkn 501,  PKS 2255-282, S5 1803+78 are the other blazars detected in one or some days of the week.


• Crab source actively rumbling during the week, exceeding the daily flux level of 4E-6 in the midst of the week.

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.

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Fermi LAT weekly report N. 195

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Covered period: 2012.Feb.27 - 2012.Mar.4

LAT Mission week: 195.57 - 196.57

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• PKS 1510-089 (z=0.36) was active all week with fluxes ranging between 4.5 and 7.1 X 10^-6.


• BL Lac was detected at (1.3 +/- 0.3) X 10^-6 on February 27 and later continued at flux levels 0.7 - 1.0 X 10^-6 until March 3.


• PKS 0402–362 was detected at (1.8 +/- 0.4) X 10^-6 on March 3.


• S5 716-71 continued to be detected at flux level (0.5 +/- 0.1) X 10^-6 or below until February 29


• PKS B1424-418, PKS 2255-282, S5 1803+784, B3 1343+451, PKS 2326--502, PKS 0454--234 were detected sporadically throughout the week at flux levels 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:

- A. Szostek (aszostek[at]slac.stanford.edu) for generic information related to this week

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

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Fermi LAT weekly report N. 194

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Covered period: 2012.Feb.20 - 2012.Feb.26

LAT Mission week: 194.57 - 195.57

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• PKS 1510-089 (z=0.36) was active all week with fluxes ranging from 2.3-7.4 X 10^-6


• PKS 0402-362 was bright on February 20 at a flux of (1.1 ± 0.3) X 10 ^-6 it declined to (0.7 ± 0.2) X 10^^-6 on Tuesday and then was not detected the rest of the week.


• PKS 2255-282 was detected at a flux of 1 X 10^-6 on February 26 2012, since this was the first time a flare from this source has been detected Atel #3948 was submitted.


• S5 716-71 was detected every day this at flux level at or below (0.5 ± 0.1) X 10^-6


• PKS 0454-234 was detected at (1.0 ± 0.3) X 10^-6 on February 26.


• PKS 1424-41, NGC 1275, 4C +28.07, Mrk 421, PKS 0537-441, S5 1803+78, PKS 0521-36, PMN J2250-2806, PKS 2326-502 detected sporadically throughout the week at flux levels 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:

- M. Dutka (ditko86[at]gmail.com) for generic information related to this week

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

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