Fermi Gamma-Ray Sky: April 2016

Thursday, April 28, 2016

Fermi LAT Weekly report N.411

Covered period: 2016.Apr.18 - 2016.Apr.24
LAT Mission week: 411.57 - 412.57

PKS 2023-07 detected all week with daily flux between (2.6±0.3) and (0.4±0.2).
CTA 102 detected all week with daily flux between (1.3±0.2) and (1.0±0.2).
3C 454.3 detected all week with daily flux between (1.1±0.2) and (0.6±0.2).
3C 279 detected on 20 April with daily flux of (1.0±0.2).
Fermi J1057-6027 detected on 20 April with daily flux of (1.5±0.2).
PKS 1510-08 detected on 23 April with daily flux of (1.0±0.3).
PKS 2032+107 detected on 19 April with daily flux of (0.6±0.2). See the GCN/FERMI NOTICE #1461077778.
Cygnus X-3 (ATel#8970) and AGL J0917+1511 (ATel#8974) detected by AGILE during the week. LAT preliminary analyses cannot confirm these observations.
Correlated gamma-ray and X-ray activity observed from TXS 0059+581 (more details in ATel#8981).
Sporadic activity (fluxes below 1):TXS 2241+406, PKS 2032+107, FBQS J102333.5+395312, ON 393, PKS 1502+106, S5 0716+71, 1ES 1215+303, OJ 535, OJ 014, PKS 0454-234, OQ 253, S4 1030+61, 4C +01.02, B2 2113+29, PKS 0336-01, VER 0521+211, PKS 2136-642, 1ES 1959+650, BL Lac, NGC 1275, PKS 2155-304, 3C 66A, PKS 2233-148, PKS 0716+714, Mrk 421, S5 1044+71, Mrk 501, PKS 1424-41. .

Fluxes are in the unit of 10^-6photons/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:
- F. Martino (fabio.martino1803@gmail.com) and G. Pivato (giovanna.pivato@pi.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

Friday, April 22, 2016

Fermi LAT Weekly report N. 410

Covered period: 2016.Apr.11 - 2016.Apr.17
LAT Mission week: 410.57 - 411.57

3C 454.3 detected all week with a daily flux between (0.9±0.2) and (2.6±0.3).
CTA 102 detected all week with a daily flux between (1.0±0.1) and (2.4±0.3).
PKS 2023-07 detected all week with a daily flux between (1.4±0.2) and (2.9±0.3).
TXS 2241+406 detected all week with a daily flux between (0.6±0.1) and (1.4±0.2).
NRAO 676 detected on 11 Apr with daily flux (2.1± 0.3) and on 12 Apr with flux (1.1±0.2).
Sporadic activity (fluxes below 1): S5 0716+71, S4 1030+61, PKS 1441+25, 3C 279, FBQS J102333.5+395312, PKS 2032+107 (GCN/FERMI NOTICE #1461077778), Mrk 501, PKS 1502+106, 4C +01.02, Mrk 421, S4 1800+44, PKS 1256–220, BL Lacertae, B2 2113+29, NGC 1275, PKS 0454-234, 3C 66A, 3C 273, AO 0235+164, GB6 J1604+5714, PKS 2227-08, TXS 0059+581 (ATel#8981), S5 1044+71.

Fluxes are in the unit of 10^-6photons/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:
- G. Pivato (giovanna.pivato@pi.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

Wednesday, April 13, 2016

Fermi LAT Weekly report N. 409

Covered period: 2016 April 4-10
LAT Mission week: 409.57-410.57

Flare of the flat spectrum radio quasar PKS 2023-07 (NRAO 629) detected with the highest daily flux level of 2.0e-6 on April 9, and level of 1.7e-6 on April 10. See more details in GCN/Fermi Notice #1460300184 and ATel#8932. Increased activity from PKS 2023-07 has been observed by LAT from July 2015, and this follows about 5.5 years of a relatively quiescent state.
Flare of 4C +40.25 (or the nearby FBQS J102333.5+395312, both representing the double association of the source 3FGL J1023.1+3952) detected with daily flux level of 1.2e-6 on April 6.
CTA 102 bright all the week with daily fluxes between 1.0e-6 and 1.4e-6.
3C 454.3 detected all week with daily fluxes between 0.8e-6 and 1.3e-6.
4C +01.02 (PKS 0106+01) detected all week with daily fluxes between 0.6e-6 and 1.0e-6.
NRAO 676 observed with a renewed activity after about 2.5 years, being detected in some days of the week with daily fluxes between 0.7e-6 and 0.9e-6.
TXS 2241+406 detected all week with daily fluxes between 0.6e-6 and 0.8e-6.
TXS 2358+209 detected in some days of the week with daily fluxes between 0.6e-6 and 0.9e-6.
3C 279 detected in some days of the week with daily fluxes between 0.4e-6 and 0.9e-6.
PKS 1424-41 detected in some days of the week with daily fluxes between 0.5e-6 and 0.8e-6.
BL Lac detected in some days of the week with daily fluxes between 0.3e-6 and 0.8e-6.
S5 1039+81 in some days of the week with daily fluxes between 0.4e-6 and 0.7e-6.
PKS 1441+25 detected on April 5 with daily flux level of 0.5e-6
Detection in the vicinity of PKS 0047+023 on April 7, with daily flux 0.8e-6.
PKS 1502+106, PKS 1510-08, and PKS 2032+107 all sporadically detected at about 0.7e-6.
Other blazars of the week detected, also sporadically, around or below the daily flux level of 0.5e-6: B2 2113+29, 3C 273, OX 169, ON 246, Mkn 501, Mkn 421, 1ES 1959+650, 1ES 1215+303, S5 0716+71, S5 1044+71, S4 1030+61, NGC 1275, TXS 2358+209, TXS 0943+105, PKS 1256-220, PKS 0454-234, PKS 1824-582, PKS 0537-441, PKS 2136-642, VER 0521+211, PMN J2141-6411, PMN J1024+0056, 3C 66A, 4C +38.41 (B2 1633+38), AO 0235+164.

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, April 7, 2016

Fermi LAT Weekly report N. 408

Covered period: 2016 March 28 - April 3
LAT Mission week: 408.57-409.57

CTA 102 is the brightest extragalactic source of the week with daily fluxes between 1.3e-6 and 2.9e-6.
3C 454.3 detected all week with daily fluxes between 0.7e-6 and 1.2e-6.
TXS 2241+406 detected all week with daily fluxes between 0.5e-6 and 1.0e-6, peaking in the first part of the week.
TXS 2358+209 detected in high state with daily flux 1.0e-6 on April 2.
S4 1800+44 detected in high state with daily flux 0.8e-6 on March 31.
4C +01.02 (PKS 0106+01) detected all week with daily fluxes between 0.7e-6 and 0.9e-6.
Detection, on March 30, in the vicinity of both 1RXS J053629.4-334302 (2FHL J0536.4-3342) and PKS 0534-340 (no LAT catalogs) with daily flux 0.4e-6.
MH 2136-428 detected with daily hard photon spectral index of 1.4+/-0.2 on April 1st.
Further blazars detected in bright state in some days of the week, with daily fluxes between 0.5e-6 and 0.7e-6: PKS 2023-07, PKS 1502+106, 3C 279, PKS 1424-41, NGC 1275, S5 1044+71, NRAO 676 (TXS 2159+505).
Other blazars of the week detected, also sporadically, around or below the daily flux level of 0.5e-6: S5 0716+71, S5 1039+81, 1ES 1215+303, BL Lac, OJ 287, Mkn 421, Ton 599, S4 1030+61, PKS 1510-08, AO 0235+164, TXS 2358+209, 4C +01.28 (PKS 1055+01), PKS 0454-234, PKS 2155-304, PKS 2136-642, B2 2113+29.

Fermi Gamma-Ray Sky