J/A+A/652/A6 12Y-MST and 12Y-MSTw Catalogues (Campana+, 2021)
Twelve year update of the MST catalogue of gamma-ray source candidates above
10 GeV and at Galactic latitudes higher than 20 degrees.
Campana R., Massaro E.
<Astron. Astrophys. 652, A6 (2021)>
=2021A&A...652A...6C 2021A&A...652A...6C (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Gamma rays ; BL Lac objects
Keywords: gamma rays: general - gamma rays: galaxies - methods: data analysis
Abstract:
We present an updated version catalogue of gamma-ray source
candidates, 12Y-MST, selected using the Minimum Spanning Tree (MST)
algorithm on the 12-years Fermi/LAT sky (Pass 8) at energies higher
than 10GeV.
The high energy sky at absolute Galactic latitudes above 20 degrees
has been investigated using rather restrictive selection criteria,
resulting in a total sample of 1664 photon clusters, or candidate
sources. Of these, 230 are new detections, i.e., candidate sources
without any association in other gamma-ray catalogues.
A large fraction of them have interesting counterparts, most likely
blazars. In this paper the main results on the catalogue selection and
search of counterparts are described.
We also present an additional sample of 224 candidate sources
(12Y-MSTw), which are clusters extracted applying weaker selection
criteria: about 57% of them have not been reported in other
catalogues.
Description:
Complete 12 years MST (12Y-MST and 12Y-MSTw) catalogues, including
1664 and 224 sources, respectively, with their celestial and Galactic
coordinates, MST parameters, associations with published gamma-ray
catalogues, possible multi-wavelength associations and other comments.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
12y-mst.dat 220 1664 12Y-MST catalogue of gamma-ray sources above
10GeV and at Galactic latitudes above |20|°
12y-mstw.dat 179 224 12Y-MSTw catalogue of gamma-ray sources above
10GeV and at Galactic latitudes above |20|°
--------------------------------------------------------------------------------
See also:
J/A+A/619/A23 : 9Y-MST Catalogue (Campana+, 2018)
J/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)
J/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020)
Byte-by-byte Description of file: 12y-mst.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- Name Name of the source (12Y-MST JHHMM+DDMM)
20- 26 F7.3 deg RAdeg Right ascension (J2000)
28- 34 F7.3 deg DEdeg Declination (J2000)
36- 42 F7.3 deg GLON Galactic longitude
44- 50 F7.3 deg GLAT Galactic latitude
52- 55 I4 --- N Number of photons
57- 62 F6.3 --- g Clustering degree
64- 72 F9.3 --- M Magnitude of the cluster, defined as M=N*g
74- 78 F5.2 deg Rm Median radius
80- 84 F5.2 deg Rmax Maximum radius
86-102 A17 --- 9Ycntp Counterpart in the 9Y-MST catalogue
(9Y-MST JHHMM+DDMM)
104-120 A17 --- 4FGLcntp Counterpart in the 4FGL catalogue
(4FGL JHHMM.m+DDMM)
122-138 A17 --- 3FHLcntp Counterpart in the 3FHL catalogue
(3FHL JHHMM.m+DDMM)
140-160 A21 --- TeVcntp Counterpart in TeV catalogues
162-220 A59 --- Notes Notes
--------------------------------------------------------------------------------
Byte-by-byte Description of file: 12y-mstw.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Name Name of the source (12Y-MSTw JHHMM+DDMM)
21- 27 F7.3 deg RAdeg Right ascension (J2000)
29- 35 F7.3 deg DEdeg Declination (J2000)
37- 43 F7.3 deg GLON Galactic longitude
45- 51 F7.3 deg GLAT Galactic latitude
53 I1 --- N Number of photons
55- 59 F5.3 --- g Clustering degree
61- 66 F6.3 --- M Magnitude of the cluster, defined as M=N*g
68- 71 F4.2 deg Rm Median radius
73- 77 F5.2 deg Rmax Maximum radius
79- 95 A17 --- 9Ycntp Counterpart in the 9Y-MST catalogue
(9Y-MST JHHMM+DDMM)
97-114 A18 --- 4FGLcntp Counterpart in the 4FGL catalogue
(4FGL JHHMM.m+DDMM)
116-133 A18 --- 3FHLcntp Counterpart in the 3FHL catalogue
(3FHL JHHMM.m+DDMM)
135-179 A45 --- Notes Notes
--------------------------------------------------------------------------------
Acknowledgements:
Riccardo Campana, riccardo.campana(at)inaf.it
(End) Riccardo Campana [INAF, Italy], Patricia Vannier [CDS] 17-May-2021