Monday, November 17, 2014

Fermi LAT Weekly Report N. 335


Covered period: 2014.Nov.3 - 2014.Nov.9
LAT Mission week: 335.57 - 336.57

  • PKS 1824-582, was detected all week with a daily averaged flux between (1.2 +/- 0.2) and (3.5 +/- 0.4). This flare triggered a GCN Notice, see GCN/Fermi Notice #1415375482.
  • PKS 1510-08 was detected Nov. 3 through Nov. 6 with a daily averaged flux between (0.6 +/- 0.2) and (4.1 +/- 0.3).
  • 3C 454.3 was detected all week with a daily averaged flux between (1.4 +/- 0.4) and (5.0 +/- 0.7).
  • 4C +21.35 (PG 1222+216) was detected all week with a daily averaged flux between (1.4 +/- 0.3) and (2.8 +/- 0.4).
  • CTA 102 was detected on Nov. 4 and Nov. 5 with daily averaged fluxes of (1.1 +/- 0.5) and (2.4 +/- 0.6), respectively.
  • PKS 2142-75 was detected Nov. 3,7 and 9 with a daily averaged flux between (0.4 +/- 0.2) and (1.1 +/- 0.3).
  • Sporadic daily detections of blazars (fluxes below 1):PMN J1903–6749, NGC 1275, PKS 0336–01, S4 1144+40, GB6 J1542+6129, B2 1520+31, PKS 0451–28, PKS 0736+01.

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.


Tuesday, November 4, 2014

Fermi LAT Weekly Report N. 334


Covered period: 2014.Oct.27 - 2014.Nov.2
LAT Mission week: 334.57 - 335.57

  • A new gamma-ray source, Fermi J0507-5641, was detected on Oct. 31 with a daily averaged flux of (0.4 +/- 0.1). See ATel #6655
  • 3C 454.3 was detected all week with a daily averaged flux between (1.7 +/- 0.6) and (4.5 +/- 0.7).
  • PKS 1510-08 was detected all week with a daily averaged flux between (0.6 +/- 0.2) and (1.9 +/- 0.2).
  • NGC 1275 was detected on Oct. 28, 29, and 30 with a daily averaged flux between (0.7 +/- 0.2) and (1.0 +/- 0.2).
  • 4C +21.35 (PG 1222+216) was detected on Oct. 29, 30, 31, and Nov. 2 with a daily averaged flux between (0.9 +/- 0.3) and (1.3 +/- 0.4).
  • PKS 1424-582 was detected on Oct. 31 and Nov 2 with daily averaged fluxes of (0.5 +/- 0.2) and (1.6 +/- 0.3), respectively.
  • Sporadic daily detections of blazars (fluxes below 1):Mkn 421, MG2 J043337+2905, PKS 1424-418, NVSS J141922-083830, PKS 0308-611, PKS 0451-28, PKS 2052-47, 4C +71.07 (S5 0836+71).

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:
- B. Carpenter (carpbr01[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Fermi LAT Weekly report N. 333


Covered period: 2014 October 20-26
LAT Mission week: 333.57 - 334.57
 

  • CTA 102 detected  in high state in all week, reaching a maximum on 24-25  October with a daily flux of 2.6E-6 (ATel #6631)
  • PKS 1510-08 detected in quite active state all week with a daily flux level above 1E-6, reaching the maximum on October 21 with a daily flux of 2.3E-6.
  • MRK 421 detected several time during the week with a flux about 0.5e-6.
  • Further bright blazars detected during the week with a daily flux above 1E-6:  3C454.3,  PKS 1824-582 and PMN J2141-6411
  • Sporadic other detections (with daily flux lower than 1E-6):  S5 0716+714,  B2 1520+31,   4C +71.07 (S5 0836+71),  S4 1144+40,  PKS 1424-41, 4C +21.35 (PG 1222+216) and 3C 279
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. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week.
- Contact persons on this page for individual sources cited above.

Saturday, October 25, 2014

Fermi LAT Weekly report N. 332


Covered period: 2014 October 13-19
LAT Mission week: 332.57 - 333.57
 

  • PKS 1510-08 detected in enhanced state all week with a daily flux level ranging between about 0.6E-6 and 2.0E-6. The source displayed a hard photon index (~2) toward the end of the week.
  • Mkn 501 detected in some days of the week. The peak flux was reached on October 19 when the source was detected with six-hour flux level of (0.5 ± 0.3)E-6.
  • S5 0836+71 detected several times during the week at flux level of about 0.8E-6.
  • 3C 454.3 and PKS 1424–418 detected several times during the week.
  • Sporadic other detections (with daily flux lower than about 0.6E-6): 4C +38.41, PKS B1908-201, Mrk 421, PKS 2326-502, 3C 279, NGC 1275, PKS 1441+25, AO 0235+164, GB6 J0742+5444, 4C +01.28, B2 1520+31,  PKS B1222+216 (4C +21.35), PG 1553+113, B2 1144+40, PKS 0426-380.
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.Buson (sara.buson[at]pd.infn.it) for generic information related to this week.
- Contact persons on this page for individual sources cited above.

Wednesday, October 22, 2014

Fermi LAT Weekly report N. 331


Covered period: 2014 October 6-12
LAT Mission week: 331.57 - 332.57
  • Flare of blazar PKS 0336-01 (CTA 26) peaking on October 11, 2014, with a daily flux of about 1.1E-6 about 20 times greater than the average flux reported in the 2FGL catalog. This is the first time that such a high level of GeV emission is detected on daily time scales since the outburst observed by EGRET in 1995 (see ATel #6568 for more details).

    * Flare of blazar PKS B1908-201 (TXS 1908-201, OV -213) peaking on October 12, 2014, with a daily flux of about 1.3E-6 about 10 times greater than the average flux reported in the 2FGL catalog. Also PKS B1908-201 is a known EGRET blazar observed this week in flaring state by the LAT (see ATel #6575 for more details).

    * 3C 454.3 detected in bright state all week with a daily flux level ranging between about 0.8E-6 and 2.1E-6.

    * Flare of 3C 279 on October 12 with daily flux of about 1.6E-6. to be noted that this week the Sun was in conjunction with 3C 279.

    * Mkn 501 active during the week being detected on daily scales all the days with a flux 2x/4X the 2FGL flux.

    * Further bright blazars detected during the week with daily flux in the range of about 0.7E-6 to 1.0E-6: PKS 1510-08, PKS 2326-502, 3C 279, PKS 0426-380, 4C +21.35 (PG 1222+216), NGC 1275 (Per A).

    * Other blazars detected in some days of the week (with daily flux lower than about 0.7E-6): Mkn 421, B2 1144+40, PKS 1424-41, B2 1520+31, PKS 2155-304, 4C +38.41 (B2 1633+38), PG 1553+113, PKS 1352–104, PKS 0502+049

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.


Saturday, October 11, 2014

Fermi LAT Weekly report N. 330


Covered period: 2014 September 29 - October 5
LAT Mission week: 330.57 - 331.57

  • PKS 0502+049 (recent Fermi-Swift ATel #6425) observed in flaring state peaking on Oct. 1 at 1.4E-6.
  • Detection of a new transient gamma-ray source Fermi J2007-2518 with a rapid flare peaked on Sep. 29 at a daily flux level of 1.5E-6. Source also confirmed in high active state on one week timescale. More details, including first results of a Swift ToO, in ATel#6555.
  • Flare of PKS 1352-104 peaking on Sept. 29 with a daily flux of 0.9E-6 about 20 times greater than the average flux reported in the 2FGL catalog (see ATel #6522 for more details). 
  • 3C 454.3 detected in high state all week with a daily flux level ranging between about 1.5E-6 and 2.8E-6.
  • 4C +21.35 (PG 1222+216) in high state all week with a daily flux level ranging between about 0.7E-6 and 1.3E-6. 
  • CTA 102 detected in high state on Oct. 2 with daily flux level of 1.4e-6.
  • Further bright blazars detected during the week, also sporadically, with daily flux in the range of about 0.6E-6 to 1.0E-6: PKS 1510-08, PKS 2326-502, S5 0836+71, PKS 1406-076, PKS 1424-41, PKS 0454-234, AO 0235+164, PKS 0454-234, S3 0218+35 (lens B0218+35), NGC 1275 (Per A).
  • Other blazars detected in some days of the week (with daily flux lower than about 0.6E-6): S5 0716+71, 4C +38.41 (B2 1633+38), PKS 0336-01, Mkn 501, Mkn 421, PKS 2155-304, PKS 0402-362, PKS 2155-304, B2 1520+31.
  • Results about Fermi LAT and Swift observations of increased activity in blazar PMN J2141-6411 are reported in ATel#6547 issued during the week.
  • Results about Fermi LAT detection of gamma-ray flaring activity from Broad Line Radio Galaxy 3C 120 are reported in ATel #6529 issued during 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.


Thursday, October 2, 2014

Fermi LAT Weekly report N. 329


Covered period: 2014 September 21-28
LAT Mission week: 329.57 - 330.57


  • 3C 454.3 detected in high activity state all week with a daily flux level ranging between about 2.0E-6 and 5.0E-6. The flux peak was reached on Sept 27, with a 6-hour interval flux of about 8.6E-6.
  • PKS 1510-08 detected in quite active state all week with a daily flux level above 1E-6.
  • S5 0716+714 detected below the 1E-6 level in the first part of the week.
  • Mkn 421 detected several times during the week.
  • Further bright blazars detected during the week with a daily flux above the 1E-6 level 4C +21.35 (PG 1222+216) and NGC 1275 (Per A) .
  • Sporadic other detections (with daily flux lower than about 0.6E-6): PKS 2326-502, PKS 0336–01, PKS 0402–362, 4C +55.17, PKS 1424-41 .
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. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week.
- Contact persons on this page for individual sources cited above.