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1371. Bent-tailed radio galaxies Chandra Deep Field South
ID:
ivo://CDS.VizieR/J/AJ/148/75
Title:
Bent-tailed radio galaxies Chandra Deep Field South
Short Name:
J/AJ/148/75
Date:
21 Oct 2021
Publisher:
CDS
Description:
Using the 1.4GHz Australia Telescope Large Area Survey, supplemented by the 1.4GHz Very Large Array images, we undertook a search for bent-tailed (BT) radio galaxies in the Chandra Deep Field South. Here we present a catalog of 56 detections, which include 45 BT sources, 4 diffuse low-surface-brightness objects (1 relic, 2 halos, and 1 unclassified object), and a further 7 complex, multi-component sources. We report BT sources with rest-frame powers in the range 10^22^<=P_1.4 GHz_<=10^26^W/Hz, with redshifts up to 2 and linear extents from tens of kiloparsecs up to about 1Mpc. This is the first systematic study of such sources down to such low powers and high redshifts and demonstrates the complementary nature of searches in deep, limited area surveys as compared to shallower, large surveys. Of the sources presented here, one is the most distant BT source yet detected at a redshift of 2.1688. Two of the sources are found to be associated with known clusters: a wide-angle tail source in A3141 and a putative radio relic which appears at the infall region between the galaxy group MZ 00108 and the galaxy cluster AMPCC 40. Further observations are required to confirm the relic detection, which, if successful, would demonstrate this to be the least powerful relic yet seen with P_1.4GHz_=9x10^22^W/Hz. Using these data, we predict future 1.4GHz all-sky surveys with a resolution of ~10 arcsec and a sensitivity of 10{mu}Jy will detect of the order of 560,000 extended low-surface-brightness radio sources of which 440,000 will have a BT morphology.
1372. BeppoSAX Approved Pointings
ID:
ivo://nasa.heasarc/saxao
Title:
BeppoSAX Approved Pointings
Short Name:
SAXAO
Date:
21 Feb 2025
Publisher:
NASA/GSFC HEASARC
Description:
The SAXAO database contains the list of the all accepted AO1/AO2/AO3/A04/AO5 SAX CORE and GO program proposals, approved for the first year of operations. The database also includes targets scheduled for the Science Verification Phase (SVP) (from launch, 30 April 1996, till August 1996). The CORE program includes proposals led by Principal Investigator belonging to Italian or Dutch institutions, to the Space Science Department of ESA or to the Max Planck Institute for Extraterrestial Physics in Garching. Approximately 80 percent of the first year observing time is allocated to the CORE program. The remaining 20 percent of time for the first year operations is reserved for the GO program. For the AO2 60 percent is allocated to the CORE program and 40 percent to the GO. For the AO3 and AO4 50 percent is allocated to the CORE program and 50 percent to the GO. More information on the SAX mission is available at the following address &lt;a href="http://www.asdc.asi.it"&gt;http://www.asdc.asi.it&lt;/a&gt; and also &lt;a href="https://heasarc.gsfc.nasa.gov/docs/sax/saxgof.html"&gt;https://heasarc.gsfc.nasa.gov/docs/sax/saxgof.html&lt;/a&gt;. This is a service provided by NASA HEASARC .
1373. BeppoSAX catalog of GRB X-ray afterglows
ID:
ivo://CDS.VizieR/J/A+A/455/813
Title:
BeppoSAX catalog of GRB X-ray afterglows
Short Name:
J/A+A/455/813
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the catalog of X-ray afterglow observed by BeppoSAX from the launch of the satellite to the end of the mission. Thirty-three X-ray afterglows out of 39 observations were securely identified based on their fading behavior. We have extracted the continuum parameters (decay index, spectral index, flux, absorption) for all available afterglows. We point out a possible correlation between the X-ray afterglow luminosity and the energy emitted during the prompt gamma-ray event.
1374. BeppoSAX complete catalogue of GRBs
ID:
ivo://CDS.VizieR/J/A+A/473/347
Title:
BeppoSAX complete catalogue of GRBs
Short Name:
J/A+A/473/347
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the complete on-line catalogue of gamma-ray bursts observed by the two Wide Field Cameras on board BeppoSAX in the period 1996-2002. Our aim is to provide the community with the largest published data set of GRB's prompt emission X-ray light curves and other useful data.
1375. BeppoSAX/GRBM and Fermi/GBM long GRBs
ID:
ivo://CDS.VizieR/J/MNRAS/431/3608
Title:
BeppoSAX/GRBM and Fermi/GBM long GRBs
Short Name:
J/MNRAS/431/3608
Date:
21 Oct 2021
Publisher:
CDS
Description:
From past experiments the average power density spectrum (PDS) of gamma-ray bursts (GRBs) with unknown redshift was found to be modelled from 0.01 to 1Hz with a power law, f^-{alpha}^, with {alpha} broadly consistent with 5/3. Recent analysis of the Swift/Burst Alert Telescope (BAT) catalogue showed analogous results in the 15-150keV band. We carried out the same analysis on the bright GRBs detected by BeppoSAX/Gamma-ray Burst Monitor (GRBM) and Fermi/Gamma-ray Burst Monitor (GBM). The BeppoSAX/GRBM data, in the energy range 40-700keV and with 7.8 and 0.5ms time resolutions, allowed us to explore for the first time the average PDS at very high frequencies (up to 1kHz) and reveal a break around 1-2Hz, previously found in Compton Gamma Ray Observatory/Burst and Transient Source Experiment data. The Fermi/GBM data, in the energy band 8-1000keV, allowed us to explore for the first time the average PDS within a broad energy range. Our results confirm and extend the energy dependence of the PDS slope, according to which harder photons have shallower PDS.
1376. BeppoSAX/GRBM {gamma}-ray Burst Catalog
ID:
ivo://CDS.VizieR/J/ApJS/180/192
Title:
BeppoSAX/GRBM {gamma}-ray Burst Catalog
Short Name:
J/ApJS/180/192
Date:
21 Oct 2021
Publisher:
CDS
Description:
This is the catalog of Gamma-Ray Bursts (GRBs) detected with the Gamma Ray Burst Monitor aboard the BeppoSAX satellite. It includes 1082 GRBs with 40-700keV fluences in the range from 1.3x10-7 to 4.5x10-4erg/cm^2^, and 40-700keV peak fluxes from 3.7x10-8 to 7.0x10-5erg/cm^2^/s. We report in the catalog some relevant parameters of each GRB.
1377. BeppoSAX/GRBM Gamma-Ray Burst Catalog
ID:
ivo://nasa.heasarc/saxgrbmgrb
Title:
BeppoSAX/GRBM Gamma-Ray Burst Catalog
Short Name:
SAXGRBMGRB
Date:
21 Feb 2025
Publisher:
NASA/GSFC HEASARC
Description:
This is the catalog of gamma-ray bursts (GRBs) detected with the Gamma Ray Burst Monitor (GRBM) aboard the BeppoSAX satellite. It includes 1082 GRBs with 40 - 700 keV fluences in the range from 1.3 x 10&lt;sup&gt;-7&lt;/sup&gt; to 4.5 x 10&lt;sup&gt;-4&lt;/sup&gt; erg/cm&lt;sup&gt;2&lt;/sup&gt;, and 40 - 700 keV peak fluxes from 3.7x10&lt;sup&gt;-8&lt;/sup&gt; to 7.0 x 10&lt;sup&gt;-5&lt;/sup&gt; erg/cm&lt;sup&gt;2&lt;/sup&gt;/s. Some relevant parameters of each GRB are reported in the catalog. This table was created by the HEASARC in January 2010 based on the &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/ApJS/180/192"&gt;CDS catalog J/ApJS/180/192&lt;/a&gt;, file table2.dat. This is a service provided by NASA HEASARC .
1378. BeppoSAX HELLAS survey. II.
ID:
ivo://CDS.VizieR/J/MNRAS/327/771
Title:
BeppoSAX HELLAS survey. II.
Short Name:
J/MNRAS/327/771
Date:
21 Oct 2021
Publisher:
CDS
Description:
The BeppoSAX High Energy Large Area Survey (HELLAS) has surveyed about 85deg^2^ of sky in the 5-10keV band down to a flux of 4-5x10^-14^erg/cm^2^/s. The source surface density of 16.9+/-6.4deg^2^ at the survey limit corresponds to a resolved fraction of the 5-10keV X-ray background (XRB) of the order of 20-30 per cent. Hardness ratio analysis indicates that the spectra of a substantial fraction of the HELLAS sources (at least one-third) are harder than a {alpha}_E_=0.6 power law. This hardness may be caused by large absorbing columns. The hardness ratio analysis also indicates that many HELLAS sources may have a spectrum more complex than a single absorbed power law. A soft component, superimposed on a strongly cut-off power law, is likely to be present in several sources.
1379. BeppoSAX HELLAS survey. IV
ID:
ivo://CDS.VizieR/J/A+A/370/900
Title:
BeppoSAX HELLAS survey. IV
Short Name:
J/A+A/370/900
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a comprehensive study of the soft X-ray properties of the BeppoSAX High-Energy Large Area Survey (HELLAS) sources. A large fraction (about 2/3) of the hard X-ray selected sources is detected by ROSAT. The soft X-ray colors for many of these objects, along with the 0.5-2keV flux upper limits for those undetected in the ROSAT band, do imply the presence of absorption. The comparison with the ROSAT Deep Survey sources indicates that a larger fraction of absorbed objects among the HELLAS sources is present, in agreement with their hard X-ray selection and the predictions of the X-ray background synthesis models. Another striking result is the presence of a soft (additional) X-ray component in a significant fraction of absorbed objects.
1380. BeppoSAX HELLAS survey. V.
ID:
ivo://CDS.VizieR/J/ApJ/570/100
Title:
BeppoSAX HELLAS survey. V.
Short Name:
J/ApJ/570/100
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present optical spectroscopic identifications of hard X-ray (5-10keV) selected sources belonging to the High-Energy Large-Area Survey sample obtained with BeppoSAX down to a 5-10keV flux limit of F(5-10kev)~3x10^-14^erg/cm^2^/s. The sample consists of 118 sources. There are 25 sources that have been identified through correlations with catalogs of known sources. A spectroscopic identification for 49 more has been searched for with the telescope. The results of 13 fields were empty down to R=21. There were 37 sources identified as type 1 active galactic nuclei (AGNs) and nine as type 2 AGNs. The remaining sources are five narrow emission-line galaxies, six clusters, two BL Lac objects, one radio galaxy, and one star.

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