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J/A+A/370/468 Variability of gamma-ray sources (Torres+, 2001)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
table1.dat table5a.dat table5b.dat survey.dat table6.dat table7.dat
table8.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A+A/370/468
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drwxr-xr-x 2 cats archive 4096 Jan 12 2023 [TAR file]
-rw-r--r-- 1 cats archive 540 Dec 19 2022 .message
-r--r--r-- 1 cats archive 11235 Apr 30 2001 ReadMe
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-rw-r--r-- 1 cats archive 4931 Sep 24 2012 +footg8.gif
-r--r--r-- 1 cats archive 2534 Apr 26 2001 survey.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 1215 Apr 24 2001 table1.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 7925 Apr 24 2001 table1.ps.gz [Uncompressed]
-r--r--r-- 1 cats archive 2168 Apr 24 2001 table1.tex.gz [Uncompressed]
-r--r--r-- 1 cats archive 51031 Apr 24 2001 table5.txt.gz [Uncompressed]
-r--r--r-- 1 cats archive 641 Apr 24 2001 table5a.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 48639 Apr 24 2001 table5b.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 780 Mar 2 2001 table6.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 2049 Mar 2 2001 table7.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 533 Mar 2 2001 table8.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :J/A+A/370/468 Variability of gamma-ray sources (Torres+, 2001)
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A variability analysis of low-latitude unidentified gamma-ray sources
Torres D.F., Romero G.E., Combi J.A., Benaglia P., Andernach H., Punsly B.
<Astron. Astrophys. 370, 468 (2001)>
=2001A&A...370..468T
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ADC_Keywords: Gamma rays ; Radio sources
Keywords: gamma-rays: observations - gamma-rays: theory -
ISM: supernova remnants - black holes physics
Abstract:
We present a study of 40 low-latitude unidentified 3EG gamma-ray
sources which were found to be not positionally coincident with any
known class of potential gamma-ray emitters in the Galaxy (Romero et
al., 1999A&A...348..868R). We have performed a variability analysis
which reveals that many of these 40 sources are variable. These
sources have, in addition, a steep mean value of the gamma-ray
spectral index, <Gamma>=2.41+/-0.2, which, combined with the high
level of variability, seems to rule out a pulsar origin. The
positional coincidences with uncatalogued candidates to supernova
remnants were also studied. Only 7 sources in the sample are spatially
coincident with these candidates, a result that is shown to be
consistent with the expected level of pure chance association. A
complementary search for weak radio counterparts was also conducted
and the results are presented as an extensive table containing all
significant point-like radio sources within the 40 EGRET fields. We
argue that in order to produce the high variability, steep gamma-ray
spectra, and absence of strong radio counterparts observed in some of
the gamma-ray sources of our sample, a new class of objects should be
postulated, and we analyze a viable candidate.