J/ApJS/271/25 The first LHAASO catalog of gamma-ray sources (Cao+, 2024)
The first LHAASO catalog of gamma-ray sources.
Cao Z., Aharonian F., An Q., Axikegu, Bai Y.X., Bao Y.W., Bastieri D.,
Bi X.J., Bi Y.J., Cai J.T., Cao Q., Cao W.Y., Cao Z., Chang J.,
Chang J.F., Chen A.M., Chen E.S., Chen L., Chen L., Chen L., Chen M.J.,
Chen M.L., Chen Q.H., Chen S.H., Chen S.Z., Chen T.L., Chen Y., Cheng N.,
Cheng Y.D., Cui M.Y., Cui S.W., Cui X.H., Cui Y.D., Dai B.Z., Dai H.L.,
Dai Z.G., Danzengluobu, della Volpe D., Dong X.Q., Duan K.K., Fan J.H.,
Fan Y.Z., Fang J., Fang K., Feng C.F., Feng L., Feng S.H., Feng X.T.,
Feng Y.L., Gabici S., Gao B., Gao C.D., Gao L.Q., Gao Q., Gao W.,
Gao W.K., Ge M.M., Geng L.S., Giacinti G., Gong G.H., Gou Q.B., Gu M.H.,
Guo F.L., Guo X.L., Guo Y.Q., Guo Y.Y., Han Y.A., He H.H., He H.N.,
He J.Y., He X.B., He Y., Heller M., Hor Y.K., Hou B.W., Hou C., Hou X.,
Hu H.B., Hu Q., Hu S.C., Huang D.H., Huang T.Q., Huang W.J., Huang X.T.,
Huang X.Y., Huang Y., Huang Z.C., Ji X.L., Jia H.Y., Jia K., Jiang K.,
Jiang X.W., Jiang Z.J., Jin M., Kang M.M., Ke T., Kuleshov D., Kurinov K.,
Li B.B., Li C., Li C., Li D., Li F., Li H.B., Li H.C., Li H.Y., Li J.,
Li J., Li J., Li K., Li W.L., Li W.L., Li X.R., Li X., Li Y.Z., Li Z.,
Li Z., Liang E.W., Liang Y.F., Lin S.J., Liu B., Liu C., Liu D., Liu H.,
Liu H.D., Liu J., Liu J.L., Liu J.Y., Liu M.Y., Liu R.Y., Liu S.M.,
Liu W., Liu Y., Liu Y.N., Lu R., Luo Q., Lv H.K., Ma B.Q., Ma L.L.,
Ma X.H., Mao J.R., Min Z., Mitthumsiri W., Mu H.J., Nan Y.C., Neronov A.,
Ou Z.W., Pang B.Y., Pattarakijwanich P., Pei Z.Y., Qi M.Y., Qi Y.Q.,
Qiao B.Q., Qin J.J., Ruffolo D., Saiz A., Semikoz D., Shao C.Y., Shao L.,
Shchegolev O., Sheng X.D., Shu F.W., Song H.C., Stenkin Y.V., Stepanov V.,
Su Y., Sun Q.N., Sun X.N., Sun Z.B., Tam P.H.T., Tang Q.W., Tang Z.B.,
Tian W.W., Wang C., Wang C.B., Wang G.W., Wang H.G., Wang H.H., Wang J.C.,
Wang K., Wang L.P., Wang L.Y., Wang P.H., Wang R., Wang W., Wang X.G.,
Wang X.Y., Wang Y., Wang Y.D., Wang Y.J., Wang Z.H., Wang Z.X., Wang Z.,
Wang Z., Wei D.M., Wei J.J., Wei Y.J., Wen T., Wu C.Y., Wu H.R., Wu S.,
Wu X.F., Wu Y.S., Xi S.Q., Xia J., Xia J.J., Xiang G.M., Xiao D.X.,
Xiao G., Xin G.G., Xin Y.L., Xing Y., Xiong Z., Xu D.L., Xu R.F., Xu R.X.,
Xu W.L., Xue L., Yan D.H., Yan J.Z., Yan T., Yang C.W., Yang F.,
Yang F.F., Yang H.W., Yang J.Y., Yang L.L., Yang M.J., Yang R.Z.,
Yang S.B., Yao Y.H., Yao Z.G., Ye Y.M., Yin L.Q., Yin N., You X.H.,
You Z.Y., Yu Y.H., Yuan Q., Yue H., Zeng H.D., Zeng T.X., Zeng W., Zha M.,
Zhang B.B., Zhang F., Zhang H.M., Zhang H.Y., Zhang J.L., Zhang L.X.,
Zhang Li, Zhang P.F., Zhang P.P., Zhang R., Zhang S.B., Zhang S.R.,
Zhang S.S., Zhang X., Zhang X.P., Zhang Y.F., Zhang Yi, Zhang Y., Zhao B.,
Zhao J., Zhao L., Zhao L.Z., Zhao S.P., Zheng F., Zhou B., Zhou H.,
Zhou J.N., Zhou M., Zhou P., Zhou R., Zhou X.X., Zhu C.G., Zhu F.R.,
Zhu H., Zhu K.J., Zuo X., The LHAASO Collaboration
<Astrophys. J. Suppl. Ser., 271, 25 (2024)>
=2024ApJS..271...25C 2024ApJS..271...25C
ADC_Keywords: Gamma rays; Surveys
Keywords: Gamma-ray astronomy ; Gamma-ray observatories ; Catalogs
Abstract:
We present the first catalog of very-high-energy and ultra-high-energy
gamma-ray sources detected by the Large High Altitude Air Shower
Observatory. The catalog was compiled using 508 days of data collected
by the Water Cherenkov Detector Array from 2021 March to 2022
September and 933 days of data recorded by the Kilometer Squared Array
from 2020 January to 2022 September. This catalog represents the main
result from the most sensitive large coverage gamma-ray survey of the
sky above 1TeV, covering decl. from -20° to 80°. In total, the
catalog contains 90 sources with an extended size smaller than 2°
and a significance of detection at >5σ. Based on our source
association criteria, 32 new TeV sources are proposed in this study.
Among the 90 sources, 43 sources are detected with ultra-high energy
(E>100TeV) emission at >4σ significance level. We provide the
position, extension, and spectral characteristics of all the sources
in this catalog.
Description:
The Large High Altitude Air Shower Observatory (LHAASO) is a
multipurpose and comprehensive EAS array, designed for the study of
CRs and gamma-rays across a wide energy range, from sub-TeV to beyond
1PeV. It consists of three interconnected detector arrays, a 1.3km2
array (KM2A; Kilometer Squared Array) for gamma-ray detection above
10TeV, a 78000m2 Water Cherenkov Detector Array (WCDA) for TeV
gamma-ray detection, and a wide-FOV Cherenkov telescope array mainly
for cosmic ray physics.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 117 180 1LHAASO source catalog (see Table 2)
--------------------------------------------------------------------------------
See also:
B/psr : ATNF Pulsar Catalogue (Manchester+, 2005)
IX/67 : Incremental Fermi LAT 4th source cat. (4FGL-DR3) (Fermi-LAT col., 2022)
J/ApJ/481/95 : Radio identification of EGRET sources (Mattox+ 1997)
J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)
J/ApJS/222/6 : 4.5yr obs. of Mrk421 with ARGO-YBJ & Fermi (Bartoli+, 2016)
J/ApJS/232/18 : The third Fermi-LAT >10GeV catalog (3FHL) (Ajello+, 2017)
J/A+A/612/A1 : H.E.S.S. Galactic Plane Survey (HESS+, 2018)
J/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020)
J/ApJ/905/76 : 3rd HAWC cat. of VHE gamma-ray sources (3HWC) (Albert+, 2020)
http://tevcat.uchicago.edu/ : The online TeVCat catalog
http://snrcat.physics.umanitoba.ca/ : The online SNRcat catalog
http://www.atnf.csiro.au/research/pulsar/psrcat/ : The online ATNF PSRcat
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- --- [1LHAASO]
9- 18 A10 --- 1LHAASO Source name (JHHMM+DDMM) (1)
19- 20 A2 --- f_1LHAASO [u* ] Flag on 1LHAASO (2)
22- 25 A4 --- Comp Component name: Detector ("WCDA" or "KM2A")
26 A1 --- f_Comp [*] Flag on comp (3)
28- 33 F6.2 deg RAdeg [1.48/357]? Right ascension (J2000)
35- 40 F6.2 deg DEdeg [-19.4/73.2]? Declination (J2000)
42- 46 F5.3 deg ePos [0.004/1]? Error on position,
σp,95,stat
48- 51 F4.2 deg r39 [0/2]? Extension of the source components (4)
53- 56 F4.2 deg e_r39 [0.01/0.5]? r39 uncertainty
58- 64 F7.1 --- TS [33/73604]? TS value of the source components;
distributed as χ2 with 5dof
66- 70 F5.2 --- N0 [0/39.2] N0 parameter of the power-law SED of
the source components (5)
72- 76 F5.2 --- e_N0 [0.02/20] N0 uncertainty
78- 81 F4.2 --- Index [1.44/4.89]? Photon spectral index, Γ
83- 86 F4.2 --- e_Index [0.01/0.53]? Index uncertainty
88- 93 F6.1 --- TS100 [14/2382]? TS values of the UHE sources
at energies E>100TeV
95- 111 A17 --- Assoc The closest known TeV source counterpart
within the searching region; see Section 3.5
112 A1 --- f_Assoc [*] *: uncertain
114- 117 F4.2 arcsec Sep [0.01/1]? Angular separation between the
TeV counterpart and the LHAASO source
--------------------------------------------------------------------------------
Note (1): The name designation is 1LHAASO JHHMM+DDMM, where the 1 refers to
this being the first LHAASO catalog, JHHMM+DDMM is according to the
source location. For a source observed by both WCDA and KM2A, the
source name corresponds to the position of that with higher
significance level.
Note (2): Flag as follows:
u = UHE source with TS100>20
* = dubiously merged sources
Note (3): Flag as follows:
* = the component suffers a significant Galactic gamma-ray emission (GDE)
impact in our test
Note (4): r39 is the 39% containment radius of the 2D-Gaussian model. For the
pointlike source components, the 95% statistical upper limits (i.e.,
<r39,ul,stat) are shown.
Note (5): The power-law shape is defined by dN/dE=N0(E/E0)-Γ, where
N0 is the differential flux, E0 is the reference energy which is
3TeV for the WCDA component and 50TeV for the KM2A component, and
Γ is the photon spectral index. N0 is in units of
1013cm-2^/s/TeV and 10-16cm-2/s/TeV for the WCDA and the KM2A
components, respectively. For a source with single component
detection, we give the 95% statistical upper limits of N0 of the
nondetected component with the same position, extension, and photon
index.
--------------------------------------------------------------------------------
History:
CSV file downloaded at:
http://casdc.china-vo.org/archive/LHAASO-Gamma-Ray-sources/
(End) Emmanuelle Perret [CDS] 29-Apr-2024