Fermi LAT weekly report N. 206

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Covered period: 2012 May 14-20
LAT Mission week: 206.57 - 207.57

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• PKS 1830-211 and PMN J1038-5311 are both in high state being detected most days of the week, showing also a daily flux level above 10^-6 photons cm^-2 s^-1 at least in a couple of days. The daily peak flux observed is about 1.9X10^-6 on May 18 for PKS 1830-211, and about 1.5X10^-6  on May 15 and 18 for PMN J1038-5311.
• Other blazars detected in high state in one day of the week are PKS 1510-089 reaching the daily flux level of 10^-6 on May 14,  OJ 248 (S3 0827+24) flaring at about 10^-6 on May 17, and OJ 287 flaring at about  10^-6 on May 18.
• CTA 102, S5 0716+71, PKS 2326-502,  PMN J2345-1555, and PKS 0454-234 are detected most days of the week.
• Sporadic detections of blazars with daily flux level below 10^-6: BL Lac, PMN J2250-2806, 4C +21.35  PKS 2255-282, PKS 2233-148, PG 1218+304.
• Sporadic detections of blazars with daily flux level below 0.5x10^-6:  B2 1520+31, PKS 0341-256, 3C 66A, PKS 2233-148,  SBS 0846+513 (a narrow line Sy1 galaxy), Mkn 421,  PKS 2123-463,  TXS 1616+517, PKS 2155-304, PKS 0341-256, GB6 J0850+4855, B3 1343+451.

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. 205

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Covered period: 2012.May.07 - 2012.May.13
LAT Mission week: 205.57 - 206.57

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• BL Lacertae is quite active during the week reaching a daily flux of 0.9x10 ^-6 on May 11th.
• CTA 102 continues to be detected most of the week reaching the the daily flux of 0.9x10^-6 on May 7th.
• S5 0716+71 is detected most of the week with a flux below 1x10^-6.
• PKS 2326-502 is detected most of the week reaching a flux of 0.9x10^-6.
• NGC 1275 is detected two time during the week reaching a flux of 0.7x10^-6 on May 13th.
• PKS B1339-206, PKS 0426-380, S5 1803+78, PKS 1244-255, PKS 0537-441, B2 1520+31, Mrk 421 and PMN J2250-2806 are sporadic 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. 204

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Covered period: 2012.Apr.30 - 2012.May.06
LAT Mission week: 204.57 - 205.57

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• OG 050 reached a record daily flux level of 1.4±0.4) X 10^-6 on Apr 30, which is 16 times its average 2FGL flux. This source is known to the community as an earlier Astronomer’s Telegram (ATel#3750) reported a flare in November 2011 when it had a daily flux of 1.1 X 10^-6 (and a 6-hour flux of 2 X 10^-6). It was only detected one other day during this week: on May 5 with a daily flux of (0.7±0.3) X 10^-6.
• An unassociated source at a daily flux level of (0.9±0.2) X 10^-6 was detected well off the Galactic plane on May 1. A plausible counterpart was found in the QSO PKS 1346-112. This possible association has been known to the community through an Astronomer’s Telegram (ATel#3788) issued on 29 Nov 2011 when the daily flux was 1.2±0.2) X 10^-6.
• An unassociated source ASPJ122102m070351 was detected (TS=27) well off the Galactic plane on May 3, at a daily flux of (0.8±0.2) X 10^-6 which is 44 times its flux in the 2FGL catalog (1FGL J1221.4-0635, 2FGL J1221.4-0633).
• S5 0716+71 was detected every day from April 30 through May 4 with flux in the range (0.3-0.6)±0.1 X 10^-6.
• PKS 2326-502 was detected from May 4 through May 6 brightening from 0.3 to 0.8 X 10^-6.
• Sporadic daily detections of blazars (fluxes below 1 X 10^-6): 3C 273, PKS 1424-418, BL Lacertae, PKS 1244-255, Ton 599, B2 1520+31.

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:
- R. Ojha (Roopesh.Ojha[at]gmail.com) 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. 203

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Covered period: 2012.Apr.23 - 2012.Apr.29

LAT Mission week: 203.57 - 204.57

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• PKS 1510-08 was detected throughout the week with daily fluxes ranging from (1.0-2.1) X 10^-6, reaching the peak value on Apr. 24.


• CTA 102 was detected three times with daily fluxes ranging from (0.5±0.2) X 10^-6 to a peak value of (1.0±0.3) X 10^-6 reached on Apr. 24.


• PKS 0454-234 was detected twice with daily fluxes of (1.2±0.4) and (1.3±0.4) X 10^-6 on Apr. 23 and Apr. 24, respectively.


• Sporadic activity (fluxes below 1 X 10^-6): S5 0716+71, PKS B1424-418, PKS 2233-148, PKS 1124-186, PKS 2326-502, B2 1520+31, 1ES 2322-409, B3 1343+451, Mkn 421.

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:

- T. Venters (toni.venters[at]gmail.com) 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.202

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Covered period: 2012.Apr.16 - 2012.Apr.22

LAT Mission week: 202.57 - 203.57

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• S5 0716+71 and PKS 0454-234 detected through the week with daily flux in the range 0.3-0.5 X 10^-6 and 0.9-1.4 X 10^-6, respectively.



• Sporadic activity (fluxes above 1.0 X 10^-6) observed from 1510-089 (1.2 on Apr. 21) and CTA 102 (1.0 on Apr. 22).



• Sporadic activity (fluxes below 1.0 X 10^-6) observed from 1510-089 (0.7 on Apr. 21), PKS 2155-304 (0.2 on Apr. 16 and 20), Mkn 421 (0.2 and 0.3 on Apr. 17 and 21), B2 1520+31 (0.8 on Apr. 17), OJ 287 (0.5 on Apr. 19), B3 1343+451 (0.5 on Apr. 19), 4C +21.35 (0.4 on Apr. 19), PKS B1339-206 (0.8 on Apr. 21), PKS B1424-418 (0.4 on Apr. 21), PKS 2326-502 (0.5 on Apr. 22).

Fluxes are in the units 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. Donato (donato[at]milkyway.gsfc.nasa.gov) 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. 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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