J/A+A/558/A137 AGILE bright gamma-ray sources updated list (Verrecchia+, 2013)
An updated list of AGILE bright gamma-ray sources and their variability in
pointing mode.
Verrecchia F., Pittori C., Chen A.W., Bulgarelli A., Tavani M.,
Lucarelli F., Giommi P., Vercellone S., Pellizzoni A., Giuliani A.,
Longo F., Barbiellini G., Trifoglio M., Gianotti F., Argan A.,
Antonelli L.A., Caraveo P., Cardillo M., Cattaneo P.W., Cocco V.,
Colafrancesco S., Contessi T., Costa E., Del Monte E., De Paris G.,
Di Cocco G., Di Persio G., Donnarumma I., Evangelista Y., Fanari G.,
Feroci M., Ferrari A., Fiorini M., Fornari F., Fuschino F., Froysland T.,
Frutti M., Galli M., Labanti C., Lapshov I., Lazzarotto F., Liello F.,
Lipari P., Mattaini E., Marisaldi M., Mastropietro M., Mauri A., Mauri F.,
Mereghetti S., Morelli E., Moretti E., Morselli A., Pacciani L., Perotti F.,
Piano G., Picozza P., Pilia M., Pontoni C., Porrovecchio G., Prest M.,
Primavera R., Pucella G., Rapisarda M., Rappoldi A., Rossi E., Rubini A.,
Sabatini S., Santolamazza P., Sotta P., Stellato S., Striani E.,
Tamburelli F., Traci A., Trois A., Vallazza E., Vittorini V., Zanello D.,
Salotti L., Valentini G.
<Astron. Astrophys. 558, A137 (2013)>
=2013A&A...558A.137V 2013A&A...558A.137V
ADC_Keywords: Active gal. nuclei ; Pulsars ; Gamma rays ; Surveys
Keywords: catalogs - gamma-rays: general - gamma-rays: galaxies
Abstract:
We present a variability study of a sample of bright γ-ray
(30MeV-50GeV ) sources. This sample is an extension of the first AGILE
catalogue of -ray sources (1AGL), obtained using the complete set of
AGILE observations in pointing mode performed during a 2.3 year period
from July 9, 2007 until October 30, 2009. The dataset of AGILE pointed
observations covers a long time interval and its γ-ray data
archive is useful for monitoring studies of medium-to-high brightness
γ-ray sources. In the analysis reported here, we used data
obtained with an improved event filter that covers a wider field of
view, on a much larger (about 27.5 months) dataset, integrating data
on observation block time scales, which mostly range from a few days
to thirty days.
The data processing resulted in a better characterized source list
than 1AGL was, and includes 54 sources, 7 of which are new high
galactic latitude (|BII|≥5) sources, 8 are new sources on the
galactic plane, and 20 sources from the previous catalogue with
revised positions. Eight 1AGL sources (2 high-latitude and 6 on the
galactic plane) were not detected in the final processing either
because of low Observing Block (OB) exposure and/or due to their
position in complex galactic regions. We report the results in a
catalogue of all the detections obtained in each single OB, including
the variability results for each of these sources. In particular, we
found that 12 sources out of 42 or 11 out of 53 are variable,
depending on the variability index used, where 42 and 53 are the
number of sources for which these indices could be calculated. Seven
of the 11 variable sources are blazars, the others are Crab
pulsar+nebula, LS I +61 303, Cyg X-3, and 1AGLR J2021+4030.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table5a.dat 265 54 The variability results for the revised AGILE
bright γ-ray sources list over the
pointing-mode dataset, sources list
table5b.dat 73 485 The variability results for the revised AGILE
bright γ-ray sources list over the
pointing-mode dataset, light curves
--------------------------------------------------------------------------------
See also:
J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)
J/ApJS/135/155 : Radio identification of 3EG EGRET sources (Mattox+, 2001)
J/A+A/489/849 : EGRET gamma-ray sources revised catalogue (Casandjian+, 2008)
J/A+A/506/1563 : First AGILE catalog of gamma-ray sources (Pittori+, 2009)
J/ApJ/712/405 : AGILE observations of 3C 454.3 (Vercellone+, 2012)
J/A+A/553/A33 : AGILE Mini-Calorimeter γ-ray burst catalog (Galli+ 2013)
http://www.asdc.asi.it/agile1rcat/ : The interactive web page of the Updated
AGILE Bright Gamma-ray Sources list and their variability
Byte-by-byte Description of file: table5a.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- AGILE AGILE name (1AGL JHHMM+DDMM
or 1AGLR JHHMM+DDMM)
17- 18 A2 --- n_AGILE [**] Note for 1AGL J1836+5923 (G1)
20- 21 I2 h RAh Right ascension (J2000)
23- 24 I2 min RAm Right ascension (J2000)
26- 29 F4.1 s RAs Right ascension (J2000)
31 A1 --- DE- Declination sign (J2000)
32- 33 I2 deg DEd Declination (J2000)
35- 36 I2 arcmin DEm Declination (J2000)
38- 41 F4.1 arcsec DEs Declination (J2000)
43- 48 F6.2 deg GLON Galactic longitude
50- 55 F6.2 deg GLAT Galactic latitude
57- 60 F4.2 deg ePos ?=- Positional error circle radius at 95%
c.l., statistical error only (2)
62- 69 F8.3 "YYYY.DDD" Time Start time in year/day
71- 74 F4.1 --- TS Significance of source detection sqrt(TS) (3)
76- 81 F6.3 ph/m2/ks Flux E>100MeV flux (4)
83- 86 F4.2 ph/m2/ks e_Flux 1 σ statistical error in Flux (4)
88- 91 F4.1 ph/m2/ks F1AGL E>100MeV flux reported in 1AGL (4)
92- 93 A2 --- --- [00]
95- 98 F4.1 --- V ?=-1 McLaughlin V variability index
(see McLaughlin et al., 1996ApJ...473..763M 1996ApJ...473..763M)
100-104 F5.2 --- Vsys3 ?=-1 McLaughlin V variability indices
calculated including a 10% systematic error
105 A1 --- --- [/]
106-110 F5.2 --- Vsys2 ?=-1 McLaughlin V variability indices
calculated including a 10% systematic error,
also including detections at 2≤sqrt(TS)<3
112-117 F6.2 --- Fsys ?=-1 A modified χ2 including a 10%
systematic error
119-120 I2 --- Ndet [1/31] Number of detections with sqrt{TS}≥2
122-133 A12 --- Class Source classification (6)
135 A1 --- n_Class [+] +: in complex region (5)
137-162 A26 --- Cctp Confirmed counterpart
163 A1 --- n_Cctp [*] *: Pulsar + nebula
165-168 A4 --- --- [1AGL]
169-178 A10 --- 1AGL 1AGL name (JHHMM+DDMM)
180-265 A86 --- Pctp Possible association(s), separated by commas
--------------------------------------------------------------------------------
Note (2): The AGILE team recommends adding a systematic error of
±0.1° linearly.
Note (3): Test statistic, defined as the likelihood ratio (sqrt(TS))
Note (4): Flux in 10-3γ.m-2.s-1. The AGILE team recommends
adding a systematic error of 10% to the statistical error.
Note (5): +: Pulsar and SNR in complex region
Note (6): the classes are:
BLLac = BL Lac-type source
CWB = colliding wind binary
FSRQ = Flat Spectrum Radio Quasar
HMXB = High Mass X-ray Binary
Pulsar = pulsar (rotating neutron star)
SNR = SuperNova Remnant
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table5b.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- AGILE AGILE name (1AGL JHHMM+DDMM or
1AGLR JHHMM+DDMM)
17- 18 A2 --- n_AGILE [**] Note for 1AGL J1836+5923 (G1)
20- 26 F7.1 d Tstart [54290/55120] Starting MJD of observation
28- 34 F7.1 d Tend [54294/55136] Ending MJD of observation
36- 39 I4 --- NOB [900/8400] Number of Observing Blocks (OB)
measurements
41- 46 F6.2 10+3m2.Ms MeanOB Mean value of the exposure map relative to
the OB map used for each source analysis
48- 52 F5.2 --- TS Significance of source detection (sqrt(TS))
54 A1 --- l_Flux Limit flag on Flux
55- 59 F5.2 ph/m2/ks Flux E>100MeV flux (10-3γ.m-2.s-1)
62- 66 F5.2 ph/m2/ks e_Flux ? 1 σ statistical error in Flux
69- 73 F5.1 deg OA [0/120] Off-axis angle
--------------------------------------------------------------------------------
Global notes:
Note (G1): **: γ-ray source positionally consistent with the pulsar
2FGLJ1836.2+5926
--------------------------------------------------------------------------------
Acknowledgements:
Francesco Verrecchia, francesco.verrecchia(at)asdc.asi.it
History:
* 23-Oct-2013: On-line version
* 06-Dec-2013: units of Flux in both tables corrected (from author)
(End) Francesco Verrecchia [ASDC], Patricia Vannier [CDS] 07-Oct-2013